轮机英语历年试题卷一

1002级轮机英语期末考试（A）考试班级：1002轮机2.3.4.5班班级：姓名：分数：第一部分：单选题1.1886 The starting current of an a.c. motor is_____ the rated current.A. the same asB. much larger thanC. less thanD. equals2.1895 With a_____ load the voltage and current are in phase.A. pure resistanceB. capacitiveC. inductiveD. None of the above3.1905 The emergency generator or emergency battery is connected to_____ on most large ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards4.1906 Switchboards may be of the dead-front type in which all live parts are installed behind_____ and only the operation handles and instruments are on the front.A. the capstanB. the collectorC. the panelsD. the surface5.1907 Remote control means that_____.A. the system is manned manuallyB. the system is situated remotely from the operatorC. the system is controlled automaticallyD. all the above6.1911 The difference between measured and desired values is called_____.A. make-upB. desired valueC. deviationD. set value7.1916 Prior to any overhaul work on electric equipment, it is important to ensure the circuits are_____.A. liveB. deadC. excitedD. on line8. 228.Before starting an engine by air ,the engine must _________A. be turned by a turning gear for at least one minuteB. be turned by a turning gear for at least two minutesC. be turned at least one complete turnD. be turned at least two complete turns9.1924 Shore power must be_____ during dock repair.A. disconnectedB. switched offC. cut offD. connected10.1927 The switchboards for a.c. systems differ from the d.c. switch gear in that the open type panels are generally_____ and the dead-front switch gear is the common rule.A. permissiblyB. permissibleC. no permissibleD. not permissible11.1932 Current changing in direction and rising and falling in value is_____.A. A.C.B. D.C. C. generatorD. fresh water generator12.1935 The separate supplies are connected in either star or delta formation. The star formation is most commonly used and requires_____ slip-rings on the alternator.A. twoB. threeC. fourD. five13.1941 The difference between measured and desired values is calledA. offsetB. errorC. deviationD. set value14.1946 After the trouble of the automatic control system has been completely eliminated, assistance is_____ required.A. remainedB. stillC. no longerD. much mere15.1952 The field coils_____ and the armature is_____. This is in fact the arrangement adopted for large, heavy duty alternators.A. stationary/rotateB. stationary/stationaryC. rotate/stationaryD. rotate/rotate16.1954 An a.c. switchboard is usually_____ the corresponding d.c. board because of the higher voltage and lower currents and smaller bus-bars.A. larger and heavier thanB. as much asC. smaller and lighter thanD. more dangerous than17.1963 In_____ the control action is independent on(of) the output.A. a closed loop control systemB. an open loop control systemC. a boiler control systemD. a steering gear control system18.1965 It_____ for an emergency generator to require paralleling.A. is usualB. is not usualC. is necessaryD. is not impossible19.1982 Which of the motors for the devices listed below is fitted with an instantaneous overload relay?A. FanB. PumpC. WinchD. Machine tool20.1986 An electrical device which prevents an action from occurring until all other required conditions are met is called a/an_____.A. limitB. monitorC. modulatorD. interlock21.1987 A circuit breaker and a fuse have a basic similarity in that they both_____.A. can be reset to energize the circuitB. should open the circuit when overloadedC. will burn out when an over current flow developsD. All of the above22.1997 A constant output voltage from an AC generator is maintained by the_____.A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay23.2005 What will be the phase angle relationship of a six-pole, three-phase, rotating field generator _____.A. 60B. 120C. 180D. 36024.2017 Copper is often used as an electrical conductor because it_____.A. has high resistance at low temperaturesB. has a highly polished surfaceC. is able to pass current with little oppositionD. holds insulation together well25. In a series circuit, which value will remain unchanged at all places in the circuit?A. V oltageB. CurrentC. ResistanceD. Inductance26.2027 The total resistance of a parallel circuit is always_____.A. larger than the greatest branch resistanceB. smaller than the lowest branch resistanceC. equal to the sum of the individual branch resistancesD. one-half the sum of the individual branch resistances 27．2159 _____ means the Government of the State whose flag the ship is entitled to fly.A. AssemblyB. OrganizationC. CompanyD. Administration28.2035 The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the_____.A. bridge control panelB. disconnect linksC. governor relay boxD. main switchboard29. 2472 The port state control inspection is carried out on the basis of the following international conventions. Among them, which one was not set by IMO?A. LL66B. ITC69C. ILO No. 147D. SOLAS 74r30.2038 Possible phase relationships between voltage and current in an alternating current circuit include which of the following conditions?A. Current and voltage may be in phase.B. Current may lead the voltage.C. Current may lag the voltage.D. All of the above.31.2084 An ammeter should be used to measure_____.A. the voltage between two points in a circuitB. circuit continuityC. current flow in a circuitD. total or partial circuit resistance32. 2203 The International Oil Pollution Prevention Certificate required by MARPOL is issued to China flag by the_____.A. IMOB. CCSC. USCGD. PICC33. 2102 When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is_____.A. laggingB. leadingC. maximumD. minimum34. 2096 V oltage will always lead current in a/an_____.A. capacitive circuitB. inductive circuitC. magnetic circuitD. resistive circuit35. 2111 When paralleled, AC generators must have the same_____.A. frequencyB. number of phasesC. phase rotationD. All of the above36. 2116 Prior to closing the breaker when paralleling two AC generators, the recommended practice is to have the frequency of the incoming machine_____.A. slightly less than the line frequencyB. the same as the line frequencyC. slightly greater than the line frequencyD. All of the above37. 2291 A person on a fixed or floating platform engaged in oil exploration MAY discharge food waste into the sea whenthe distance from the nearest land is at leastA. 3 nautical milesB. 5 nautical milesC. 12 nautical milesD. 25 nautical miles38. 2121 The unit of electrical power is the_____.A. ampereB. kilovoltC. wattD. farad39. 2146 _____is a precaution which contributes to avoiding trouble under normal operating conditions.A. Constant inspectionB. Keeping constant loadC. Remaining constant temperatureD. V arying speed40. 2465 _____ should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.A. The watch keeping personnelB. The chief engineerC. The person on a bunker bargeD. The duty deck officer41. 2151 Bridge orders must be_____ and a record of any required changes in speed and direction should be kept..A. slowly carried awayB. carried out with a period of delayC. promptly carried outD. paid by the captain42. 2421 The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the_____ of operation when notified that the ship is in congested waters.A. manual modeB. automatic modeC. remote modeD. follow-up mode43. 2161 While loading bunkers, you notice oil on the water near the vessel. What should you do first.A. Stop loadingB. Notify the harbour administrationC. Determine if the vessel is the source of the pollutionD. Start the main engine and put them in gear to disperse the spill44. 2163 The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to_____.A. use self-contained breathing apparatusB. use various types of portable fire extinguishersC. effect a rescue in a smoke-filled space wearing breathing apparatusD. All of the above45.2412 The order “_____” means “Maximum maneuvering engine revolution for aheadpropulsion.”A. Full AheadB. Half AheadC. Full AsternD. Half Astern46. 263. Why ship repair is an inherently difficult business to manage in the conventional sense?A. Because it is difficult to plan and manageB. Because it is cannot be will categorizedC. Because it is a difficult work for people to undergoD. Because it is seldom researched by researcher47.2166 The fire-fighting practical training should take place in spaces which provide truly realistic training conditions, and whenever possible and practical should be carried out in_____.A. darknessB. daylightC. simulated engine-roomD. all of the above.48. 2186 The distance between the bottom of the hull and the waterline is called_____.A. tonnageB. reserve buoyancyC. draftD. freeboard49. 2191 The approval period for a shipboard oil pollution emergency plan expires after _____.A. one yearB. two yearsC. four yearsD. five years50. 2193 A shipboard oil pollution emergency plan is required of_____.A. all vessels, regardless of size and commercial applicationB. any barge or other ship which is constructed or operated in such a manner that no oil in any form can be carriedaboard C. an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or aboveD. an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above51. 2196 To prevent the spread of fire by conduction, you should_____.A. cool the bulkheads around the fireB. remove combustibles from direct exposureC. close all openings to the areaD. shut off all electric power52. 2199 Burning diesel oil should be treated as which class of fire?A. Class "A"B. Class "B"C. Class "C"D. Class "D"53. 2200 If your vessel has a starboard list after taking on fuel, you would transfer fuel_____.A. to starboardB. to portC. forwardD. aft54. 2201 Convection spreads a fire as a result of_____.A. transmitting the heat of a fire through the ship's metalB. burning liquids flowing into another spaceC. heated gases flowing through ventilation systemsD. the transfer of heat across an unobstructed space55. 2204 The International Oil Pollution Prevention Certificate is valid for a period of_____.A. one year from the date of issueB. two years from the date of issueC. three years from the date of issueD. four years from the date of issue56. 2205 A class "B" fire would most likely occur in the_____.A. main switchboardB. engine room bilgeC. breathing compartmentD. electric fresh water transfer pump57. 2208 If an oil spill occurs on deck, you should_____.A. cover the area with foamB. cover the area with absorbent materialC. wash down immediately with a fire hoseD. wash down immediately with an oil dispersing solvent58. 2215 A class "C" fire would occur in_____.A. beddingB. pipe insulationC. paintD. a generator59. 2458 At an unsheltered anchorage the chief engineer officer shall consult with_____ whether or not to maintain an underway watch.A. the engineer officer in charge of watchB. the deck officer in charge of watchC. the masterD. the chief mate60. 2230 The class of fire on which a blanketing effect is essential to extinguish the fire is_____.A. class AB. class BC. class CD. class D61. 2233 Which of the listed classes of fire would most likely occur in the engine room of a vessel?A. Classes A and BB. Classes B and CC. Classes C and DD. Classes A and D62. 2234 One of the methods NOT usually allowed in cleaning up oil spills in the United States is_____.A. skimmersB. strawC. dispersantsD. sawdust63. 2235 A class "D" fire would be considered as burning_____.A. woodB. oilC. electrical equipmentD. magnesium64. 2242 The use of sinking and dispersing agents for the removal of surface oil is_____.A. the most common method used in the United StatesB. too expensive for common useC. generally safe to sea lifeD. generally harmful to sea life65. 2238 Fires involving combustible metals are classified as_____.A. class "A" firesB. class "B" firesC. class "C" firesD. class "D" fires66. 2244 A tank which has been sealed for a long period of time can be dangerous because_____.A. steel surfaces consume oxygen by rustingB. sealed tanks usually form a vacuumC. moisture condenses in the tank, displacing the oxygenD. most tank coatings give off poisonous vapors in the presence of moisture67. 2246 A tank has been sealed and unventilated for a long period of time. Which of the following conditions does this indicate?A. The tank is safe to enter.B. The tank is especially dangerous to enter.C. Carbon monoxide is present.D. Water vapor present when the tank was sealed has oxidized.68. 2460 With UMS, when the engine room is unwatched,_____ will control the main engine.A. the bridge officer on watchB. the chief engineerC. the duty engineerD. the duty motorman69. 2248 An example of class "A" fire is a/anA. electrical fire in the engine roomB. oil fire in the engine room bilgesC. oil fire involving a grade "A" petroleum productD. mattress fire in a stateroom70. 2250 Why is it necessary to warn engine room personnel before activating the fixed CO2 system?A. To make them aware there is a fire.B. To let them know they should leave the engine room.C. To prevent possible injury from frostbite.D. To make them aware that ventilation will automatically stop.71. 2279 Y our assigned emergency stations aboard your vessel can be found on the ship's_____.A. muster listB. certificate of inspectionC. clearance papersD. permit to proceed72. 2283 The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as_____.A. chemical ignitionB. spontaneous combustionC. chemical combustionD. radiation ignition73. 2297 The term "discharge", as it applies to the pollution regulations, meansA. spillingB. leakingC. dumpingD. All of the above74. 2318 If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST_____.A. secure the ventilationB. find a soda acid extinguisherC. shut off the fuel oil supplyD. secure the generator75. 2321 The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to_____.A. evacuate all engine room personnelB. fight the fire with hand portable extinguishersC. activate the main CO2 bankD. stop the flow of leaking fuel oil76. 2334 The necessity for administering artificial respiration may be recognized by the victim's _____.A. vomitingB. blue color and lack of breathingC. irregular breathingD. unconscious condition77. 2335 All personnel should be familiar with the lifeboats_____.A. boarding and operating proceduresB. maintenance scheduleC. navigational systemsD. fuel consumption rates78. 2366 Which of the precautions listed should be observed when taking on diesel fuel?A. Secure all lighting to the main deckB. Provide a portable fan to blow away fumesC. Prohibit smoking in the areaD. Display a black triangle during daylight hours79. 2367 To avoid excessive pressures in the fuel oil filling system during bunkering, you should _____.A. close the tank filling valves quicklyB. top off all tanks at the same timeC. rill completely all tanks to less than 95 % fullD. reduce the loading rate when topping off80. 2376 During fueling operations, which of the listed precautions should be taken when topping off fuel tanks?A. Reduce the pumping rate by closing the deck filling valve.B. Close all overflow valves.C. Place 5 gallon containers under all flange connections in the fuel line.D. Reduce the pumping rate and sound tanks frequently as the level rises.81. 2416 After the order “_____” is given, the air system is shut down, the turnin g gear put in, all drains and indicator cocks opened, and the cooling water and lubricating oil systems kept running.A. Stand-by EngineB. Stop EngineC. Finished With EngineD. Dead Slow Ahead82. 2426 The Port Authorities, in accordance with the IMO resolutions have been carrying out_____ to enhance safety of ships.A. CPPB. FPPC. PSCD. FSC83. 2434 If you must enter a room or compartment to combat the fire , keep an escape path_____.A. openB. closeC. opensD. closes84. 0093 Additives_____ protective layers on metal surfaces guarding them against corrosion.A. damageB. formC. dissolveD. contaminate85. 1835 When a vessel is in dry-dock, the vessel's engineers should_____.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging86. 2382 The lengthening of a crack formed in the shell plating of a ship may be prevented by_____.A. welding brackets across both ends of the crackB. chipping out and slot welding the entire crackC. drilling a hole at each end of the crackD. cutting a square notch at each end of the crack87. 2497 A(n)_____ is a mechanical attack on the metal surface which may be due to a disturbance in the flow of the waterover the blade of the propeller.A. erosionB. corrosionC. pittingD. dezincification88. 264. Which one of the following repair will cost the least cost? ______A. routing docking repairB. voyage repairC. damage repairD. convention第二部分:关联题1.The control officer may determine if all operational requirements of Annex I of MARPOL 73/78 have been met, taking into account:(1) the quantity of oil residues generate;(2) the capacity of sludge and bilge water holding tank(s);and(3) the capacity of the oily water separator.including the inspection of the oil record book. The control officer may determine if reception facilities have been used and note any alleged inadequacy of such facilities.The control officer may determine whether the responsible officer is familiar with the handling of sludge and bilge water. The relevant items from the guidelines for systems for handling oily wastes in machinery spaces of ships may be used as guidance. Taking into account the above, the control officer may determine if the ullage of the sludge tank is sufficient for the expected generated sludge during the next intended voyage. The control officer may verify that, in respect of ships for which the Administration has waived the requirements of regulation 16( 1 ) and (2) ,all oily bilge water is retained on board for subsequent discharge to a reception facility.When reception facilities in other ports have not been used because of inadequacy, the control officer should advise the Master to report the inadequacy of the reception facility to his own flag State, in conformity with MEPC/Circ.215 of April. 1989.89. All the following factors should be considered by the control officer except_____.A. the quantity of oil residues generateB. the capacity of sludge holding tanksC. the capacity of bilge water holding tanksD. the capacity of the oil separator90. The control officer may determine if the ullage of the sludge tank is sufficient for the expected generated sludge during the next intended voyage. According to this sentence, which of the following statements is true?A. The control officer has known that the sludge tank is too small.B. The next voyage has been decided.C. The sludge generated during the voyage is too much to be filled into the sludge tank.D. The ullage of the sludge tank is enough.91. MARPOL Convention is formulated by_____.A. the Flag StateB. the Port StateC. the IMOD. the ILO92. The word "waive" is closest in meaning to_____.A. wait for willinglyB. suggest in willinglyC. insist on willinglyD. give up willingly2.At appropriate intervals inspection should be made of the main propulsion plant, auxiliary machinery and steering gear spaces. Any routine adjustments may then be made and malfunctions or breakdowns can be noted, reported and corrected. During these tours of inspection bilge level should be noted, piping and systems observed for leaks, and local indication instruments also be observed.Bridge orders must be promptly carried out and a record of any required changes in speed and direction should be kept.When under standby or maneuvering conditions with the machinery being manually operated the control unit or console should be continuously manned,.Certain watchkeeping duties will be necessary for the continuous operation of equipment or plant the transferring of fuel for instance.in addition to these regular tasks other repair or maintenance tasks may be requiredof the watchkeeping personnal.however,no tasks should be undertaken which will interfere with the supervisory duties relating to the main machinery and associated equipment.During the watch a log or record will be taken of the various parameters of main and auxiliary equipment. Fuel consumption figures are used to determine the efficiency of operation, in addition to providing a check on the available bunker quantities. Lubrication oil tank levels to some extent indicates engine oil consumption. If the sump level were to rise this would indicate water leakage into the oil and an investigation into the cause must be made. The engine exhaust temperature reading should all be about the same to indicate an equal pow er production from each cylinder. The various temperature and pressure values for the cooling water and lubrication oil should be at, or near to, the manufacturer's designed values for the particular speed or fuel lever settings.(The following questions are based on the passage above)93. The first paragraph mainly about_____.A. what should be done during the watchB. what should be done during tours of inspectionC. what the duty personnel should do when they begin their watchD. all of the above94. The watchkeeping personnel_____.A. should note bilge levelB. should observe piping for leaksC. should undertake required tasks not affecting their supervisory dutiesD. All of the above are tree.95. Fuel consumption figures are used to_____.A. determine the efficiency of operationB. provide a check on the available bunker quantitiesC. Both A and B are true.D. Neither A nor B is true.96. Which of the following can best substitute the word "figures" (underlined in the fourth paragraph)?A. charactersB. valuesC. contentsD. bunkers答题纸：班级：姓名：分数：。

第一章船舶动力装置1.“Stand by an engine”means _____√A．“prepare to stop the engine”B．“assemble an engine on its bedplate”C．“make an engine ready for starting”√D．“dismantle an engine”2. A _____ is the foundation of the engine, without the support of which theshaft alignment in particular, and engine structure as a whole, wouldinevitably be lost√A．FrameB．Bedplate √C．CylinderD．Liner3._____ are commonly used in mechanical-hydraulic governor to sense enginespeeds√A．BulbsB．BulksC．Flyweights √D．Flywheels4._____ are generally formed in the frame of the both in-line and Vee enginesto give maintenance access to the crankshaft main and connecting rod large end bearing√A．Doors √B．Aspirate gauzerC．CouplingD．Blind5._____ device is provided to prevent starting air from being admitted to thecylinder before the reversing is completed√A．An automaticB．A transmissionC．A self-regulatingD．An interlocking√6._____ is the removal of exhaust gases by blowing in fresh air√A．Gas exchangeB．ChargingC．Scavenging √D．Supercharging7._____ is used for cylinder and cylinder head, the salt water is used for coolingthe lubricating oil, the fresh water in the coolers and the charging air in theair cooler√A．The fuel oilB．The lube oilC．The sea waterD．The fresh water √8._____ may be the first possible cause which makes the engine to lose poweror slow down when it is running√A．Hot bearing √B．Starting valvesC．Unequal distribution of loadD．Excessive crankshaft clearance9._____ of an engine crankshaft can be detected by measuring deflections ofcrank webs for each unit of the engine√A．Misalignment √B．LengthC．StrengthD．Stresses10._____ of the A-frames there is a strong cast iron frame called the scavengingair box√A．At the top √B．At the bottomC．In the topD．In the bottom11._____ pistons have low inertia and high coefficient of thermal expansion√A．Cast ironB．Cast steelC．Forged steelD．Aluminum √12._____ should not undertake any task which will interfere with thesupervision duties relating to the main machinery and associated equipment √A．The watch keeping personnel √B．The chief engineerC．The person on a bunker bargeD．Any of the above13._____ the cylinder will contain a great weight of air and will be capable ofburning a great quantity of fuel√A．At the beginning of the compression stroke √B．At the beginning of the suction strokeC．At the end of the working strokeD．At the end of the exhaust stroke14._____ the supercharge pressure is, _____ power an engine develops√A．The higher/the more √B．Higher/moreC．Higher/littleD．The higher/the less15._____ is not properly set thus causing either advanced or retarded firing√A．A pistonB．A fuel injection pump √C．A feed water pumpD．A lube oil pump16._____ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder√A．PistonB．SoundingC．Regulating √D．Connecting17._____ shows 1.2 meter and the specific gravity of the oil is 0.96√Accordingto the measuring scale, that makes 150 tons√A．The piston rodB．The push rodC．The sounding rod √D．The connecting rod18._____ allows for expansion and water make up in the water cooling system√A．A top tankB．A head tank √C．A head valveD．A drain tank19._____ at the end of the distribution pipe ensures that adequate pressure ismaintained by the pump√A．A relief valveB．An alarm √C．A pressure gaugeD．A non-maim valve20._____ is used for washing and drinking√A．The ballast systemB．The salt water systemC．The bilge systemD．The domestic system √21._____ provide the water to the pistons√A．Pneumatic pipesB．Hydraulic pipesC．Telescopic pipes √D．Operating gas pipes22._____ are fitted in the exhaust system and facilitate charge removal andscavenging in each cylinder√A．Diffusers √B．CompressorsC．Steam boilersD．Soot blowers23._____ are formed by abrasive particles entering the bearing and scoring theshaft√A．Grooves √B．RecessesC．RidgesD．Nips24._____ are mounted on and bolted to the bed-plate cross girders√A．The crankshaftB．The crankcaseC．The guide-waysD．The frames √25._____ is a precaution which contributes to avoiding trouble under normaloperating conditions√A．Constant inspection √B．Keeping constant loadC．Remaining constant temperatureD．varying speed26._____ is a source of power by which the diesel engine may operate√A．Water energyB．Electrical energyC．Chemical energyD．Heat energy √27._____ is arranged for cleaning the lubricating oil in the system and clean oilcan be provided from a storage tank√A．A filterB．A centrifuge √C．A distillerD．A generator28._____ is fully floating in both connecting rod small end and the piston skirt√A．The piston rodB．The cross head pinC．The gudgeon pin √D．The crank-pin29._____ is made of a boss with separated blades mounted into it√A．A variable pitch propeller √B．A variable pitch nutC．A fixed pitch parallelD．A fixed pitch screw30._____ is usually driven by the engine camshaft and supplies pilot air to thecylinder air start valve√A．An air receiverB．An operating valveC．An automatic valveD．An air distributor √31._____ neutralizes the acid conditions and_____ cleanses the rings andgrooves√A．The detergency/the alkalinityB．The alkalinity/the detergency √C．The inhabitant/the waterD．The additives/the distilled water32._____ or air venting arrangement is fitted to the fuel supply passage√A．An air pumpB．A compressorC．A fuel pumpD．A priming √33._____ providing lubricating films, oil used in marine diesel engines have toremove heat from oil cooled piston√A．Except forB．BesideC．ExceptD．In addition to √34._____ the engines, the diesel engine is_____ used engine on board√A．Between/more commonlyB．Among/the most commonly √C．Between/not more commonlyD．Among/not the most commonly35._____ water is more expensive than fresh water, It has high specific heat andlow viscosity√A．Distilled √蒸馏B．DistillingC．BoilingD．Boiled36._____ for the camshaft gear train is taken from a spur gear which for a sixcylinder engine is at the coupling end√A．The driven gearB．The drive √C．The greaseD．The lubricating oil37._____ in what position the engine stops there will always be at least one of thecylinders with its starting air valve open to admit compressed air to start the engine√A．BecauseB．Owing toC．ForD．No matter √38._____ is secured by means of side-chock bolts and end-chock bolts√A．The bedplate √B．The columnC．The main bearingD．The double bottom39._____ usually helps to induce air movement to assist combustion√A．Cylinder coverB．Main bearingC．The exhaust valveD．The piston movement √40._____ may have two emergency source of power, thus requiring twoemergency switchboards√A．Large passenger vessels √B．General cargo shipsC．Container shipsD．Oil tankers41._____ supplies pilot air to control the cylinder air start valves√A．An air compressorB．An indicator cockC．An air distributor √D．A safety valve42._____ clearances in the main or crank pin bearings will sometimes beindicated by loss of pressure in the lubricating system before any bearing knock is heard√A．Too largerB．Too smallerC．ExcessD．Excessive √43.A cast steel strong back is fitted in way of the combustion space to helpabsorb _____√A．flame temperatureB．fuel oilC．air movementD．gas forces √44.A charge of fresh air is drawn into the engine cylinder and then _____ by themoving piston_____ very high pressure√A．pressed/toB．pressurized/withC．pushed/inD．compressed/to √45.A diesel engine is similar to a gasoline engine except that the former has no_____√A．cross-headB．cylinderC．connecting rodD．spark plug √46.A diesel engines crankcase oil level is found to be too high, You shouldsuspect that _____√A．the engine was over filledB．there might be a fuel leakC．there might be a water leakD．all of the above √47.A distance piece, with ground faces, known as a compression plate, may beinterposed between the rod and the beating housing, its thickness beingchosen to ensure the correct _____√A．compression pressureB．compression testC．compression ratio √D．compression clearance48.A distance piece, with ground faces, may be interposed between the rod andthe bearing housing, its thickness being chosen to ensure the correct _____√A．expansion ratioB．pressure ratioC．compression ratio √D．clearance ratio49.A gudgeon pin in a trunk piston may be free to float and rotate, with _____ tolimit axial movement√A．split pinsB．crankpinsC．dipsticksD．circlips √开口卡簧50.A heater in the circuit facilitates warming of the engine prior to ____ bycirculating hot water√A．starting √B．stoppingC．to startD．to stop51.A high temperature alarm or _____ which will melt is used to guard againstthe explosion of compressor air pipelines√A．a flame trapB．a relief valveC．a fusible plug √D．a bursting cap52.A level gauge for a tank is to _____√A．give the pressureB．give the contents √C．give the shape of the tankD．give the accuracy level53.A lubricant often has to perform many duties in any situation, in addition toits fundamental job of_____√A．resisting oxidizationB．reducing friction √减少摩擦C．promoting moving speedD．developing inertia54.A main bearing consists of two shells which are secured by means of studsand _____√A．tie rodsB．through boltsC．lead wiresD．bearing caps √55.A number of cylinder liners are enclosed in one cast iron casing to form a_____√A．cylinder coverB．cylinder block √C．cylinder frameD．bed-plate56.A reduction in load on a diesel engine results in _____ of speed of thecrankshaft√A．a reductionB．an increase √增加C．an outingD．a downwards57.A separate piston cooling system is used _____ any contamination frompiston cooling glands to the piston cooling system only√A．to helpB．to limit √限制C．to protectD．to remove58.A separate piston cooling system is used to limit any contamination _____piston cooling glands_____ the piston cooling system only√A．between, toB．either, orC．from, to √D．neither, nor59.A variable pitch propeller is made _____ a boss with separate bladesmounted into it√A．ofB．up of √C．fromD．out60.A: Please tell me the specifications and quantityB: _____√A．Pump diesel oil firstB．300 tons of 180 cst fuel oil √C．The figure is all rightD．OK, I’ll sign it61.About half an hour before the engine is required, cooling water at _____must be circulated√A．more than the working temperatureB．less than the working temperatureC．the working temperature √D．the same as the surrounding temperature62.According to the way the energy of the exhaust gases is utilized,pressure-charging can be divided into two main systems, namely, theconstant-pressure system and _____√A．the pulse-phase systemB．the pulse Doppler systemC．the pulse system √D．the pulse interval63.Acid solution________ in the system can be tested from time to time byputting some on to a piece of lime√A．strength √浓度B．denseC．percentageD．velocity64.Additives _____ protective layers on metal surfaces guarding them againstcorrosion√A．damageB．form √C．dissolveD．contaminate65.Administrations should bear in mind the significance of _____ in maintainingsafety of life and property at sea and in preventing marine pollution√A．advanced nautical equipmentB．advanced performance main enginesC．emergency equipmentD．communication and language skills √66.After ensuring that the _____ is correct the bearing clearance should bechecked√A．napB．gapC．nip √D．deflection67.After fitting back in place the gear wheels, dont forget _____ them√A．to grease √涂油B．greasingC．oilingD．lubricating68.After passing through the turbine the exhaust gas is conducted out into the_____√A．intercoolerB．compressorC．cylinderD．open air √69.After the engine is warned, we should_____ the turning gear before startingup the engine√A．take inB．put inC．take out √D．put up70.All the rings are slightly rounded on their external top and bottom edges tokeep the oil film on the cylinder liner during _____ for new piston rings√A．the running-in period √磨合期B．the running processC．gas exchange processD．the boiler firing71.All three systems have the ports _____ to swirl the incoming air and direct itin the appropriate path√A．angledB．roundedC．being angledD．being rounded √72.Although the crankshafts of medium diesel engines appear to be robust, theyrely on the support of _____ to develop their full strength√A．the piston rodsB．the crank throwsC．the thrust bearingsD．the main bearings √73.Aluminum pistons have _____ coefficient of thermal expansion comparedwith those of cast iron√A．higher √B．lowerC．the sameD．none of the above74.An increase in load on a diesel engine results in _____ of speed of thecrankshaft√A．a reduction √减少B．an increaseC．an outingD．a downwards75.An interlock in the remote operating valve line stops the valve _____ whenthe engine turning gear is engaged√A．to openB．opening √C．openD．opened76.An overspeed safety device is usually fitted to a generator engine for _____ inthe event of overspeed√A．cutting power off the engine √B．increasing the fuel pump settingC．braking the crankshaftD．stabilizing the ship speed77.As a heat engine, _____ energy is the source of power by which the dieselengine can be operated√A．electricB．heat √C．mechanicalD．exhaust78.As for a diesel engine, lack of combustion air may be due to _____√A．fouling turbine √涡轮故障B．fuel pump faultsC．lubrication failureD．excessive cooling79.As the plunger moves up, the ports are closed and the fuel _____ anddelivered to the injector nozzle at very high pressure√A．being compressedB．to be pumped upC．is pressurized √D．are built up80.Be sure to make the engine turn by _____ before starting and after stopping√A．steering gearB．turning gear √C．steering wheelD．turning cycle81.Bearing knocks are likely to occur from _____√A．less clearanceB．dirty lube oilC．overloadD．bearing wear √82.Before "stand-by" is rung on the engine telegraph, it is usual to give the mainengine _____ ahead and astern√A．a brief trial with turning gearB．a brief trial on power √C．a long trial by steering gearD．one minutes trial with windlass83.Before pumping up the crankcase oil, _____ should be worked by hand tominimize corrosive action on the liners√A．the indicatorsB．the starting valvesC．the cylinder lubricators √D．the turning gear84.Before replacing a piston you should check that all rings are _____√A．free √自由B．fastenedC．brokenD．stuck85.Before replacing a piston you should check the rings to see that all clearancesand gaps are _____ the permissible tolerances√A．aboveB．atC．overD．within √86.Before replacing a piston you should check the rings to see that all clearancesand gaps are within the permissible _____√A．deflectionB．discrepancyC．errorD．tolerance √误差87.Before starting the engine the air bottle should be _____√A．pumped up √B．loadedC．dischargedD．opened88.Blow-off of the relief valves of the engines cylinders may be caused by _____√A．too low leadB．water in fuelC．too tight springD．leakage √泄漏89.Blow-off of the relief valves of the main cylinders during operation indicates_____√A．the cylinder cover is crackedB．the injector holes is cloggedC．the cams are not properly set √D．fuel pump is leaking90.Bridge gauge can be used to measure _____ of a diesel engine√A．diameters of journals √轴颈直径B．deflections of crankwebsC．diameters of crankpinsD．none of the above91.Care and cleanliness are required when installing diesel fuel filters _____√A．to prevent the fuel system from becoming air-houndB．to prevent the fuel system becoming clogged with dirty particlesC．both of the above √D．to prevent the lubricating oil from leaking out of the filter element92.Cast iron carrier rings, _____ machined grooves, are provided for all thepistons√A．caulked into √B．caulking intoC．pressed intoD．screwed into93.Charging is the filling of the engine cylinder with a supply or charge of freshair _____ compression√A．to needB．ready for √准备就绪C．want toD．going to be94.Charging-air pressure increases if there is incorrect combustion and drop inthe _____ of the diesel engine√A．machine efficiencyB．machinery efficiencyC．mechanical efficiency √机械效率D．mechanics efficiency95.Constant cooling the various components of diesel engine has a number offunctions except for _____√A．good lubricationB．low thermal stressC．good mechanical propertiesD．acid corrosion √酸腐蚀96.Cooling enables the engine metals _____ their mechanical properties√A．to retain √保留B．to remainC．to maintenanceD．to have97.Cooling of engines is achieved by _____ a cooling liquid around internalpassages within the engine√A．flowedB．flowingC．mixingD．circulating √循环98.Cooling of engines is achieved by circulating a cooling liquid around internal_____ within the engine√A．airB．passages √C．pipesD．means99.Cracks in cylinder and cylinder covers may _____ from unequal heating√A．makeB．causeC．result √导致D．produce100.Cracks in the cylinders and cylinder covers may _____ unequal heating √A．result from √B．result inC．give outD．given from101.Cracks in the cylinders and cylinder covers may result from _____√A．low speedB．unequal heating √不均匀受热C．less lubricatingD．low charge air pressure102.Crankshafts of medium speed engines are _____ from a single piece of steel√A．unusually solid weldedB．never be solid forgedC．almost invariably solid forged √D．almost invariably be welded103.Cross scavenging requires the fitting of _____ to prevent air or exhaust gas escape when the piston is at the top of the stroke√A．a exhaust valveB．a piston skirt √活塞裙C．a piston crownD．an air suction valve104.Cylinder liner cooling is often referred to as _____√A．piston coolingB．sleeve coolingC．central coolingD．jacket cooling √105.Cylinders of marine diesel engines are normally cooled by _____√A．sea waterB．fine mineral oilC．sanitary waterD．fresh water √106.Diesel engines are started by supplying _____ into the cylinders in the appropriate sequence for the required direction√A．cooling waterB．compressing airC．compressed air √D．cylinder oil107.Diesel engines are started by supplying _____ into the cylinders in the appropriate sequence for the required direction√A．fuel oilB．diesel oilC．compressed air √D．jacket water108.Diesel oil may be used to cool _____ of a diesel engine√A．cylindersB．exhaust valvesC．pistonsD．fuel valves √109.Dirt in the fuel oil system of a diesel engine can cause _____√A．clogged filters √堵塞滤器B．poor combustionC．overloading of the dieselD．shock of fuel lines110.Dirty oil must be _____ before being used again√A．mixed with clean oilB．purified √净化C．heatedD．strained111.Doors are generally formed in the _____ of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing√A．bedplatesB．columns √C．cylinder blocksD．safety caps112.Due to _____ action of pistons some relative motion between parts in contact in the coolant supply and return system must occur√A．reciprocating √往复B．rotatingC．runningD．removing113.During _____, the starting air valves should be closed to prevent the engine from turning√A．overhaul √大修B．runningC．blowing downD．All of the above are correct114.During repair, lubrication lines and orifices must be _____√A．taken awayB．engagedC．connectedD．sealed off √把……封锁起来115.During the inspection, the starting air valves should be closed _____ the engine from turning√A．to increaseB．to speed upC．to prevent √防止D．to reduce116.During the suction stroke, the piston is moving _____√A．inwardsB．outwardsC．downwards √D．upwards117.During working, when the piston is near the _____, the air ignites the fine spray of fuel√A．TDC √B．DTCC．BDCD．BCD118.Each crank is made up of two crank webs joined by a common _____ to which the bottom end bearing is fitted√A．throwB．crankshaftC．crankpin √曲柄销D．crosshead119.Each cylinder has one starting valve which is usually opened by air pressure and closed by _____√A．nuts and boltsB．new jointsC．spring force √弹簧力D．sealing rings120.Each cylinder is closed at the top by a _____, made of a special heat-resistant steel√A．cylinder linerB．coupling flangeC．cylinder cover √D．piston crown121.Each cylinder liner on the marine medium speed engines _____√A．is usually cooled by sea waterB．can be replaced when worn out √磨损可以更换C．is in direct contact with the water in the bore of the cylinderD．can t expand when heated122.Each journal and pin should be examined for _____ and grooving√A．bridgesB．recessesC．rearsD．ridging √123.Each piston stuffing box is provided with two sealing rings and three_____√A．packingsB．piston ringsC．distributor ringsD．scraper rings √刮油环124.Either a low injection pressure or a leakage of piston rings is able to lead _____√A．a high exhaust temperatureB．a high smoky exhaust √C．a high outputD．a high compression125.Emulsion oils and sodium nitrite are both approved additives, but the latter cannot be used if any pipes are _____ or if any soldered joints exit√A．chromedB．weldedC．galvanized √电镀D．bolted126.Emulsion oils and sodium nitrite are both approved additives, but _____ cannot be used if any pipes are galvanized or if soldered joints exist√A．the latter √B．latterC．formerD．the former127.Energy losses due to _____ occur in every machine√A．speedB．friction √摩擦C．impactD．atmosphere128.Engage the flywheel with the _____√A．turning gear √B．motorC．driving gearD．driven gear129.Engine _____ refers to the relative time of position of crank, at which each operation during the cycle is commenced and is completed√A．timing √B．deviationC．firing orderD．phase130.Engine fuel pump index is _____√A．the viscosity indexB．the fuel oil contentsC．the starting speedD．the reading at the rack √读齿数131.Excessive clearances in the main or crank-pin bearings will sometimes be indicated by _____ before any bearing knock is heard√A．loss of flow in the fuel systemB．loss of pressure in the air systemC．loss of flow in the lubricating systemD．loss of pressure in the lubricating system √132.Exhaust temperature increases in all cylinders, the possible cause may be_____(1) increased scavenging air temperature, (2) air in fuel pumps and fuel valves, (3) fouling of air and gas passages√A．(1)+(2)B．(1)+(3) √C．(2)+(3)D．(1)+(2)+(3)133.Expansion tank should be used to remove _____ from cooling water√A．scaleB．sludgeC．chemicalsD．air √134.Factor influencing the position of the interface between the liquid seal and the oil in a purifier is _____√A．throughputB．back pressureC．gravity discD．None of the above is wrong √135.Failure of fuel injection is usually due to trouble in the _____√A．exhaust valvesB．mechanical lubricatorsC．cooling water pumpsD．fuel injection pumps √136.Fix the fuel injector into _____ after repair√A．the cylinder linerB．the cylinder cover √C．the cylinder jacketD．the piston137.For a diesel engine, when the piston is at the _____, the clearance volume is the largest√A．TDCB．DTCC．BDC √D．DBC138.For a generator engine, after passing through the turbine the exhaust gas may be conducted out into the _____√A．intercoolerB．open air √C．oil fired boilerD．B and C139.For a main diesel engine the lube oil in the bearings is drawn from _____, usually located in the bedplate√A．a gravity tankB．a sump √油底壳C．a vesselD．a bottle140.For an ordinary four-stroke diesel engine the exhaust valves close _____√A．after TDC √B．before TDCC．after BDCD．before BDC141.For an ordinary four-stroke engine the exhaust valves open _____√A．after TDCB．before TDCC．after BDCD．before BDC √142.For an ordinary four-stroke engine the inlet valves open _____√A．after TDCB．before TDC √C．after BDCD．before BDC143.For an ordinary modem marine four-stroke engine the inlet valves close _____√A．after TDCB．before TDCC．after BDC √D．before BDC144.For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the _____√A．cylinder casingB．cylinder boreC．crankcase door √D．aperture in the cylinder block145.For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through _____√A．the cylinder coverB．the bottom of bed-plateC．the sumpD．the crankcase door √146.Four strokes consist of suction, compression, _____ and exhaust stroke√A．combustion √B．condensationC．chargingD．evaporation147.Fresh water is used for the cooling of cylinder jackets and _____ of the marine diesel engine√A．cylinder covers √B．lubricating spaceC．crossheadD．exhaust manifold148.Fuel has been injected but ignition fails The possible cause may be _____√A．leaky exhaust valveB．increased scavenging air temperatureC．engine cylinders not scavenged sufficientlyD．water in the fuel oil √油含水149.Fuel injected into a diesel engines cylinder is ignited by _____√A．the heat compressed fuel/air mixture in the cylinder √B．the fuel igniterC．the fuel injectorD．the fuel pump150.Fuel injection uses the jet pump system and a Woodward type hydraulic _____ is used to control engine speed√A．controllerB．governor √C．instrumentD．apparatus151.Fuel injection valves should be taken out, cleaned, and lifting checked every _____√A．two to four monthsB．four to six months √C．six to eight monthsD．year152.Fuel is delivered into the combustion space by _____√A．a cooling systemB．a lubricating systemC．an electric systemD．an injection system √153.Fuel is not supplied to the corresponding cylinder due to a failure of _____√A．the motorB．the fresh water generatorC．the governorD．the fuel pump √154.Fuel is not supplied to the corresponding cylinders due to _____√A．a failure of the motorB．a failure of lubricatorC．a failure of cylinderD．a failure of fuel pump √155.Fuel oil is pumped by means of _____ from the bunker tanks√A．a transfer pump √输送泵B．a bilge pumpC．a service pumpD．a vacuum pump156.Fuel oil is thought to be one of the main factors _____ the operation and maintenance of an engine√A．have nothing to do withB．having nothing to do with。

47期轮机英语考试题目一单项选择题1.The_a__ engine is used for alternators and some times for main propulsion provide a propeller of between 90 to 120 rpm. A.four-stroke B.two-stroke. C.slow speed D.reversible2.The abbreviation”MIP”stands for__b__,A.middle indicating pressureB.mean indicated pressureC.mean pitchD.middle indicated power3.The cetane number of a diesel fuel oil indicates its__d__.A.viscosityB.acid contentC.heating valueD.ignition quality4.In a two-stroke engine the camshaft rotates at_c__the enging rotational speed.A.halfB.twiceC.the same speed asD.four times5.A diesel enging is similar to a gasoline engine except that the former has no _d___.A.cross-headB.cylinderC.connecting rodD.spark plug6.It is easier to replace a dry cylinder liner than a wet one because_c___.A.of the thin wall thickedssB.honing makes it easier to maintain the desired oil filmC.water seals are not requiredD.it fits more loosely due to a decrease in heat transfer through the composite wall7.A main bearing consists of two shells which are secured by means of studs and_d___.A.tie rodsB.though boltsC.lead wiresD.bearing caps8.However fast or slow the combustion rate,it is still a_c___between carbon,hydrogen,sulph and oxygen that releases heat. A.physical deformation B.state exchange C.chemical reaction D.coalescence9.During the fuel injection period,fuel pressure must exceed cylinder gas pressure to__a__.A.ensure penetration and distribution of the fuel in the combustion chamberB.ensure the needle valves is flushed clean duringeach injectionC.prevent combustion gas blowback into the open needle valve Dprevent reflected pressure waves when the neddle valve close.10.In a diesel engine lube oil system ,which of the following parts should be lubricated first? bA.Camshaft bearingsB.Main bearingsC.Piston crownsD.Cylinder walls11.In a diesel engine closed freshwater cooling system,the amount of coolant flowing through the heat exchanger is controlled by the _b____,A.suction pressure regulatorB.thermostatic bypass valveC.sea water temperatureD.water level in the expansion tank12.Which of diesel engine compnents listed increases air density and helps to improve engine operating efficiency?A.ImpellerB.Air bottleC.Air coolerD.Exhaust diffuser c13.A large two-stroke/cycle direct reversing diesel engine is to be revered. Prior to the admission of starting air you must__b___.A.line up the engine for restarting with diesel oilB.reposition the fuel injection camC.change the intake and exhaust valve cam positionsD.place the starting cam in the intermediate position14.Which of the listed governer characteristics will greatly affect the load sharing relationship between paralleled diesel generators? cA.SensitivityB.PowerC.Speed drooppensation15.Thermocouple pytometers are used on large,main propulsion diesel engines to indicate the temperature of the____c_.A.cooling water leaving each cylinderB.fuel oil entering the injectorC.exhaust gases atvarious loactionsD.lube oil at the bearing supplies16.After starting a diesel engine,which of the listed oprating conditions should be checked first?A.Air box pressureB.Lube oil pressureC.Exhaust temperaturesD.Raw water pressure17.To shut down a diesel engine after it exceeds the set maximum speed ,which type of device listed should be used?A.Speed limiting governorB.Over-speed governorC.Over-speed tripD.Over-speed relay18.The treatment of the fuel oils involves storage,heating,filtering and_____.A.centrifugingB.pressurizingC.atomizationD.igniting19.A propeller,in order to operate efficiently,must rolate at a relatively_____ speedA.highB.l owC.fastD.lowlytcnt heat changes the___ of water.A.physical-stateB.temperatureC.atmospheric-pressureD.sensible-pressure21.The primary function of a flame safeguard system, as used on am automatically fired auxiliary boiler,is toprevent_____.A.accidental dry firing and overpressureB.uncontrolled fires in the furnaceC.explosions in the boiler furnaceD.overheating of the pressure parts22.Improper maintenance of the fule oil burners in an automatically fired auxiliary boiler could resuit in_______.A.increased fule consumptionB.increased feed-water consumptionC.fule pump failurebustion control systerm failure23.Bumer ignition failure in an automatically fired auxiliary boiler could result in_____.A.a burned out solenoid in the oil supply valvaB.high tempersure excess airC.incorrectly setting the hot-welldump valveD.an incorrectly positioned burner smubber(缓冲器)relary24.If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler,the cause may be___.A.high steam pressure in the boilerB.abnormally high feed-water tempretureC.abnormally high boiler water temperatureD.steam demand exceeding feed pump capacity025.Gear pumps are of positive displacement type pumps because they discharge a near constant amount ofliquid_____pressure.A.depending onB.in relativeC.regardlessD.because of26.A supr gear pump should be operated with the discharge valves_C_____.A.slightly openedB.thorttledC.fully openedD.halfway opened27.An independent bilge suction is reqired for__C__.A.ballast tanksB.sludge tanksC.machinery space bilgesD.cargo hold bilges28.To thoroughly pump out the bilges ueing a horizontally mounted centrifugal pump,the__A______.A.pump must always be primedB.volute must impart a radial and rotary motion of the waterC.suction side connectin must guide the liquid to the lantern ringsD.stuffing box should not be allowed any water leakage29.An inadequate reciprocating bilge pump discharge ismost often caused by__B______.A.defective safety valvesB.clogged suction stainersC.scarred cylinder wallsD.clogged drain valves30.In a compression refrigeration plant,the hot,high pressure refrigerant gas is cooled by the sea water and becomes liquid in the_B______.pressorB.condenserC.throttle valveD.evaporator31.The_A__only allows for adjustment of temperature in each room by the occupant manually controlling the air volurne admitted.A.central air conditioning systemB.high velocity system C .low velocity system D.single duct system32.The opening of the humidifier‟s valva of air-conditioner should be_D___,when the circurnstanc temperature is raised to above 5~8 0C in the winter.A.desreasedB.increasedC.fixedD.closed33.Under normal conditions,the quantity of air circulation becomes less and less.Whatis the reason? CA.dirty dclivery ductsB.too mush refrigerantC.the fouling filtersD.high temperature outside34.When bilge water is heated in a holding tank,which one of the following statementsis not accurate? DA.The relative high temperature facilitates primary gravity separationB.Most of the oil and organic solvenits are rised to the top layerC.The relative high the temperature is, the more the top oil wil be collectedD.The normal high temperature has little use on the separation of emuslsified oil.35.If scparating efffct of the oily water separeator is not good, we can improve it by_A___.A.flushing separator with cold waterB.increasing bilge water supply flowC.heat oily wather properlyD.opening manual oil discharge vavle36.Which is the pollution prevention equipmen? CA.booster pumpB.evaporatorC.incineratorD.coolerB37When does auxiliary burner of rotary nozzle type incinerator put into use?І.when igniting П.the waste oil for dealing-water is too mush Ш.before stopping incinerator AA.І+ПB.І+ШC.П+Ш DІ+П+Ш38.When anacrobic bacteria cinvert the sewage to an inert sludge,____. AA.no oxygen is neededB.oxygen is necessaryC.oxygen is given offD.no gas is produced.39.For a I..O purifier, if the back pressure of the oil outlet ie too high, the interface between oil and water in the bolw will___A_.A.be interruptedB.move downwardsC.move outwardsD.retain original position40.When scperating the lube oil without additive,it is ususlly working with hot waher; the aim isto remove___from it.A.acidB.oil sludgeC.mechanical impurityD.salinity A41. If the bolw of a disk type centrifugal purifier when opened as a separator is not primed the_____.A.oil has a tendency to emulsify in the bowlB.purifier wil act as a clarifier at the discharge ringC.oil wil act lost through the water discharge portsD.oil solids will be dsposited only at the intermediate top disk42.Tube leaks in the distillate cooler of a two stage flash evaporator will result in___.A.loss of secong stage vacuumB.contamination of the distillateC.lower feed inlet tempercratureD.contarnination of the second stage condenser43.Small droplets of water entrained in the flashed vapor produced in a flash-type evaporator,are removed by the____.A.spray pipesB.demistersC.condensersD.splash baffles44.Overflow valve usually be used to____.A.control the fluid flow through itB.prevent the pressure before overflow valve over the specified valueC.make the pressure after overflow valve steadyD.control the direction of oil flow45.Among the basic categories of equipment, which of the following are used to convert menchanical into hydraulic energy?A.the hydraulic pumpsB.valvesC.hydraulic cylinder sD.hydraulic motors46.Cargo handing unit is rated according to the___.A.cargo craneB.jibC.safe working loadD.oil pressure47.The part of the anchor windlass that cngages the anchor chain for lifting is called the_____.A.warping headB.fairleadC.wildcatD.capstan48.In automatic____,the which may be overhanled and wire is piad off the barrel at a pre-determinedmaximum tension.A.cranesB.windlassC.capstansD.mooring winches49.The major source of chemical contaminants in hydraulic fluid is_____,A.microscopic steel shavingsB.abrasive wasteC.anti-oxidant compoundsD.oxidation by-products50.Before doing any work on a hydraulic system equippe with accumulators , you should _____.A.drain the accumulators and purge with oxygenB.bleed off all stored energy from the accumulators completelyC.charge the accumulators to prevent system energy lossD.pupm the hydraulic fluid into the accumulators to prevent fluid loss51. One factor that determines the frequency of an alternator is the_____.A.number of turns of wire in the armature coilB.number of magnetic polesC.strength of the magnets usedD.output voltage52.The frequency of an operating altemator is controlled by the_____.A relative speed of the rotor polesB number of tums of wire in the armature coilC strenghth of the magnets usedD output voltage53.Prior to closing the breaker when paralleling two AC generators,the recommended practice is to have the frequency of incoming machine_____.A slightly less then line frequencyB the same as the line frequencyC shightly less than the line frequencyD have nothing to do with the line frequency54.If two A.C.generators are to be operated in parallel, the load is distributed evenly by_____.A means of rheostatB a balance coilC adjusting the govemor settingsD changing exciation55.The first requirement for logical troubleshooting of any system is the ability to______.A.collect all available data on a casualtyB.recognize normal operationC.identify the probable cause of a symptomD.isolate the faulty component56.______ is (are) not power supplied by main switchboard directly.A.Steering gear and windlassB.Navigation light and radio power panelC.Navigation device power boxD.Daily fresh water pump57.The emergency generation or emergency battery is connected to_____ on most large ships.A.distribution boardsB.section boardsC.emergency switch boardsD.main switch boards58_____ connectors hold best if a wire is accidentally pulled or a connection becomes looseA.Ring typeB.Fork typeC.Spade typeD.Push on, pull off type59.The primary function of an electric motor is to_____.A.Develop torqueB.generate high voltagesC.peoduce a magnetic fieldD.generate high electrical resistance60 Fusos placed in series with a thermal trip-type circuit breaker are used for___.A.time-delay protectionB.short-circuit protectionC.short duration surge protectionD.sustained overlaod protection61.Shore power must be____during dock repair.A.disconnectedB.switched offC.cut offD.connected62.The operator of electrical motors should keep a constant check on the loads they carry because____.A.low loads necessitate frequent insulation cleaningB.exceeding nameplate values shortens useful lifeC.energy is wasted if full loading is not utilizedD.power factor correction methods are load dependent63.Before a marine diesel engine is started the cylinders and pistons must be____.A.cooled to appropriate temperatureB.warmed up gradually to appropriate temperatureC.opened up and renewedD.ground and polished64.____is a precaution which contributees to avoiding trouble under normal operating conditions.A.Constant inspectionB.Keeping constant loadC.Remaining constant temperatureD.Varying speed65.During ship manoeuvering,when the diesel is stopped,which of the following items is wrong?A.keep all systems running normallyB.main engine is available at any momentC.shut off the starting air bottle outlet valveD.pay attention to the changes of the system parameters66.A tank which has been scaled for a long period of time can be dangerous because____.A.steel surfaces consume oxygen by rustingB.sealed tanks usually form a vacuumC.moisture condenses in the tank,displacing the oxygenD.most tanks coatings give off poisonous vapors in the presence of moisture67.The class of fire on which a blanketing effect is essential to extinguish the fire is_____.A.Class…A‟B.Class…B‟C.Class…C‟D.Class…D‟68.Fire in escaping flammable gas are quickly brought under control by____.A.stopping the flow of gasB.reducing the chemical chain reactionC.increasing the oxygen supplyD.cooling below the autoignition point69.Which of the following stateements is ture coucerning carbon dioxide when used as a fire extinguishing agent?A.Carbon dioxide is corrosive when exposed to fire.B.Carbon dioxide should be applised slowly to a large engine room fire.C.Its total cooling effect is far greater than waterD.Its smothering effect is excellent for class B fires70.While on watch in the engine room,you hear a continuous sounding of the general alarm,Which of the following actions should you take?A.Make an entry in the official logbook.B.Open the master control valves on the fixed CO2 system.C.Start the fire pump and check discharge pressure.D.Secure auxiliary condenser overboard discharge.71.To determine that a compartment contains sufficient oxygen to sustain life,you should use a/an_____.A.explosimeserB.oxygen indicatorC.fresh air indicatorD.emergency escape breathing device72.If the overflow tank high-level alarm sounds while the fuel oil tanks are being topped off,the engineer should____.A.close the static leg filling valveB.close the overflow tank filling valveC.reduce the oil pumping rateD.stop the fuel oil pumping operation73.The_____tool is used in precision work to smooth or enlarge a slightly undersized hole.A.round outB.round lifeC.reame rD.hole driller74.During the dock repair,each sea valve must be disassembled,cleaned and ground well,the sealing surface between the valve and the valve seat should be checked and ratified by____before reassembled.A.chief engineerB.surveyorC.the engineerD.the technique personnel of the shipyard75.The additional mark___in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station is unmanned periodically.A.BRCB..MCCC.AUT-OD.AUT-176.The Oil Record Book, as a part of the ship‟s official logbook , shall be kept on board and preserved for a period of_____. A.3 years after making the first entry B.2 years after the last entryC 3months after last entry D.3 years after the last entry77.The valid period of the International Oil Pollution Prevention Certificate on board isn‟t more than _____.A.one yearB.two yearsC.four yearsD.five years78.During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships‟detainment?A.failure of the proper operation of emergency generatorB.insulation of piping including exhaust pipes in engine room contaminated by oilC.improper operation of bilge pumping arrangementsD.damaged sanitary pump79.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a ___.A.substandard shipB.standard shipC.over-standard shipD.regerence ship80.STCW 78/95 Convention shall apply to seafarers____on board seagoing ships entitled to fly the flag of a Party.A.servedB.servingC.surveyedD.surveying81.All engineer officers and enginer room ratings shall be aware of the serious cffects of operational or accidental pollution of the marine environment and shall take all possible_____to prevent such pollution, particularly within the framework of relevant international and port regulations.A.stepsB.proceduresC.precautionsD.programs82When the order given by bridge may have bad results the duty engineer should____.rm the captain for a further considerationrm the captain, and not perorm itC.stop the M/E immediately, and then imform the chief engineerD.stop the M/E immediately, and then imform the captain83.If an oil spill occurs on deck, you should_____.A.cover the area with foamB.cover the area with absorbent materialC.wash down immediately with a fire hoseD.wash down immediately with an oil dispersing solvent84.According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastic is ____.A.welcomeB.admitted in some special sea aresC.prohibitedD.acceptable85. The main objective of the SOLAS Convention is__.A.to provide a solution of lowering pollution at seaB.to specify minimum standards for the members composing the watch at seaC. to specify minimum standards for ships considering their safetyD.to tell the company how to go about running their business86.Which of the following about ISM Code is not right?A.It aim to ensure safety at seaB. It aim to avoid damage to the environmentC. It aim to prevent human injury or loss of lifeD. It aim to prevent a method to run a company87.The ship security assessment is an essential and integral part of the process of developing and updating______.A.the ship security planB.the company security planC.the port security planD.the national security plan88.In order to limit the introduction of alien species by ship .______ was adopted on 13 Feb, 2004 at the IMO.A.Revised Marpol annex ⅠB.Revised Marpol annex ⅡC.Intermational convention for the control and management of ship‟s ballast water and sedimentsD.ISPS Code二．关联题第一组Starting Air SystemThe engine is started with compressed air of 30 bar.Minimum pressure required is 15bar.A pressure transmitter PT301 mounted on the starting air line before the main starting valve has an indicator in the instrument panel.The supply line form the starting air bottles is provided with a nonreturn valve and a drain valve.The solenoid valve is electrica(remote control) or manual(on the engine)operated and send after activation a pilot air signal to the main starting air valve .After the main staring air valve is activated the air flows through the flame arresters to the starting air valves in the cylinder heads. Part of the air flow via the starting air distributor to each of the starting air valves in the cylinder heads.The starting air distributor controls the timing of opening and closing of the starting air valves. On the moment the main starting air valve is operated also the governor booster is energized.The main startting air line is provided of a safety valve.Interlock valve is a safety device to avoid an engine start with engaged turning gear.89.As the engine is started with compressed air , the correct sequence of the following devices being activated is_____. 1.solenoid valve 2.starting air valve 3.starting air distributor 4.main starting air valve ernor boosterA.15423B.14532C.14325D.4312590.The underline sentence “the governor booster is energized”probably means_____.A.the governor booster is supplied with electric powerB.hydraulic oil is pumped into the governor boosterC.the governor starts to work before starting the engineD.the governor booster is supplied with pressurized air before starting the engine91.Which of the following components are attached to the air bottles?A.a pressure transmitter PT 301B.a non-return valve and a drain valveC.a solenoid valveD.a starting air distributor92.When the engine is engaged with turning gear, _____ can keep the engine from starting.A,the control air B.the solenoid valveC.the main starting air valveD.the interlock valve第二组（1）The company should establish procedures to ensure that the ship is maintained in conformity whit the provisions of the relewant rules and regulations and with any additional requirements which may be established by the company.(2)In meeting these requirements the company should ensure that:(2.1)inspections are held at appropriate intervals;(2.1)any non-conformity is reported,withIts possible cause,if known;(2.3)appropriate corrective action is taken;and(2.4)records of these activities are maintained(3)The company should establish procedures in its safety management system to identify equipment and technical systemsthe sudden operational failure of which may result in hazardous situations. The safety management system should provide specific measures aimed at promoting the reliability of such equipment or sysyems.Theses measures should include the testing of stand-by arrangements and equipment or technical systems that are not in continuous use. 93This passage concerns___A.the inspections of the ship and equipmentB.the reports of non-confomities.C.the corrective actionsD.the maintenance of the ship and equipment94.In(2.4)of this passage,these activities‟refers to the following activities except_____.A.the establishment of any additional requirementB.the corrective action takeC.the corrective action takenD.the reporting of any non-conformity95.According to this passage,some particular equipment should have specific measures to promotereliability,because______.A.it is not in continuous useB.its sudden failure may result in hazardous situationsC.its stand-by arrangements may not be regularly testedD.it may not be identified by the Company‟s safety managemet system96.This passage is probably taken from_____.A.the MARPOL ConventionB.the STCW ConventionC.the ISPS CodeD.the ISM Code1-5ABDCD 6-10CDCAB11-15BCBCC 16-20BCABA21-25DAABC 26-30CCABB31-35DDCDC 36-40CBACA41-45CBBBC 46-50CCDDB51-55BACCB 56-60DCAAB61-65DBBAC 66-70ABADC71-75BDBCC 76-80DDDAB81-88CABCCDAC 89-96BDBDDABD。

第一章船舶动力装置0001 “ Before disconnecting the Oil pipe ， would you flush theoil retained in the pipe _______?”asked the oil barge owner． 0001 BC．by using Of sea water <用海水） D．with chemical compound<用化学混合物）b5E2RGbCAP油驳主人问：“在拆开油管前，你能否用压缩空气吹出保留在管路中的油呢？”加油结束后，在拆卸油管前，一般用压缩空气吹洗残留在软管内的油。

0002 “Stand by an engine” means _____。

“发动机备车”意“使发动机准备起动”。

p1EanqFDPwA．“prepare to stop the engine ” <准备停止主机）B．“assemble an engine on its bedplate” <在机座上装配主机）C．“make an engine ready for starting” <使主机准备好以便起动）DXDiTa9E3dD．“dismantle an engine ” <解体主机） 0002C0003 A _______ is the foundation of the engine，without the support of which the shaftRTCrpUDGiTalignment in particular，and engine structure as whole，would inevitably be lost．5PCzVD7HxA<机座是柴油机的基本，没有它的支撑柴油机整机结构的精确的轴线对中将会失去）A．Frame <机架） B．Bedplate<机座） C. Cylinder <汽缸） D．Liner<缸套） jLBHrnAILg“机座”是发动机的基础。