《轮机英语》试题（二三管轮）含答案《轮机英语》考试复习题(二、三管轮)第一章船舶动力装置1.“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?”asked the oil barge owner.A． by using of fresh waterB．with compressed air √C． by using of sea waterD． with chemical compound2.“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”3. A _____ is the foundation of the engine, without the support of which the shaft alignmentin particular, and engine structure as a whole, would inevitably be lost.A． FrameB．Bedplate √C． CylinderD． Liner4._____ are commonly used in mechanical-hydraulic governor to sense engine speeds.A． BulbsB． BulksC．Flyweights √D． Flywheels5._____ are generally formed in the frame of the both in-line and Vee engines to givemaintenance access to the crankshaft main and connecting rod large end bearing.A．Doors √B． Aspirate gauzerC． CouplingD． Blind6._____ device is provided to prevent starting air from being admitted to the cylinderbefore the reversing is completed.A．An automatic √B． A transmissionC． A self-regulatingD． An interlocking7._____ fuel oils _____ lubricating oils require treatment before passing to the engine.A．Both/and √B． Neither/norD． Both/or8._____ is sometimes used for piston cooling since leaks into the crankcase would not causeproblems.A． Diesel oilB． Hydraulic oilC．Lube oil √D． Mineral oil9._____ is the removal of exhaust gases by blowing in fresh air.A． Gas exchangeB． ChargingC．Scavenging √D． Supercharging10._____ is used for cylinder and cylinder head, the salt water is used for cooling thelubricating oil, the fresh water in the coolers and the charging air in the air cooler.A． The fuel oilB． The lube oilC． The sea waterD．The fresh water √11._____ may be the first possible cause which makes the engine to lose power or slow downwhen it is running.A．Hot bearing √B． Starting valvesC． Unequal distribution of loadD． Excessive crankshaft clearance12._____ of an engine crankshaft can be detected by measuring deflections of crank websfor each unit of the engine.A．Misalignment √B． LengthC． StrengthD． Stresses13._____ of the A-frames there is a strong cast iron frame called the scavenging air box.A．At the top √B． At the bottomC． In the topD． In the bottom14._____ pistons have low inertia and high coefficient of thermal expansion.A． Cast ironB． Cast steelD．Aluminum √15._____ should not undertake any task which will interfere with the supervision dutiesrelating 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 above16._____ the cylinder will contain a great weight of air and will be capable of burninga 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 stroke17._____ the supercharge pressure is, _____ power an engine develops.A．The higher/the more √B． Higher/moreC． Higher/littleD． The higher/the less18._____ 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 pump19._____ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder.A． PistonB． SoundingC．Regulating √D． Connecting20._____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuringscale, that makes 150 tons.A． The piston rodB． The push rodC．The sounding rod √D． The connecting rod21._____ allows for expansion and water make up in the water cooling system.A． A top tankB．A head tank √D． A drain tank22._____ at the end of the distribution pipe ensures that adequate pressure is maintainedby the pump.A． A relief valveB．An alarm √C． A pressure gaugeD． A non-maim valve23._____ is used for washing and drinking.A． The ballast systemB． The salt water systemC． The bilge systemD．The domestic system √24._____ provide the water to the pistons.A． Pneumatic pipesB． Hydraulic pipesC．Telescopic pipes √D． Operating gas pipes25._____ are fitted in the exhaust system and facilitate charge removal and scavenging ineach cylinder.A．Diffusers √B． CompressorsC． Steam boilersD． Soot blowers26._____ are formed by abrasive particles entering the bearing and scoring the shaft.A．Grooves √B． RecessesC． RidgesD． Nips27._____ are mounted on and bolted to the bed-plate cross girders.A． The crankshaftB． The crankcaseC． The guide-waysD．The frames √28._____ is a precaution which contributes to avoiding trouble under normal operatingconditions.A．Constant inspection √B． Keeping constant loadC． Remaining constant temperatureD． varying speed29._____ is a source of power by which the diesel engine may operate.A． Water energyB． Electrical energyC． Chemical energyD．Heat energy √30._____ is arranged for cleaning the lubricating oil in the system and clean oil can beprovided from a storage tank.A． A filterB．A centrifuge √C． A distillerD． A generator31._____ 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-pin32._____ 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 screw33._____ is usually driven by the engine camshaft andsupplies pilot air to the cylinderair start valve.A． An air receiverB． An operating valveC． An automatic valveD．An air distributor √34._____ neutralizes the acid conditions and_____ cleanses the rings and grooves.A． The detergency/the alkalinityB．The alkalinity/the detergency √C． The inhabitant/the waterD． The additives/the distilled water35._____ or air venting arrangement is fitted to the fuel supply passage.A． An air pumpB． A compressorC． A fuel pumpD．A priming √36._____ providing lubricating films, oil used in marine diesel engines have to remove heatfrom oil cooled piston.A． Except forB． BesideC． ExceptD． In additi on to √37._____ 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 commonly38._____ water is more expensive than fresh waterIt has high specific heat and low viscosity.A．Distilled √B． DistillingC． BoilingD． Boiled39._____ for the camshaft gear train is taken from a spur gear which for a six cylinderengine is at the coupling end.A． The driven gearB．The drive √C． The greaseD． The lubricating oil40._____ in what position the engine stops there will always be at least one of the cylinderswith its starting air valve open to admit compressed air to start the engine.A． BecauseB． Owing toC． ForD．No matter √41._____ is secured by means of side-chock bolts and end-chock bolts.A．The bedplate √B． The columnC． The main bearingD． The double bottom42._____ usually helps to induce air movement to assist combustion.A． Cylinder coverB． Main bearingC． The exhaust valveD． The p iston movement √43._____ may have two emergency source of power, thus requiring two emergency switchboards.A．Large passenger vessels √B． General cargo shipsC． Container shipsD． Oil tankers44._____ supplies pilot air to control the cylinder air start valves.A． An air compressorB． An indicator cockC．An air distributor √D． A safety valve45._____ clearances in the main or crank pin bearings will sometimes be indicated by lossof pressure in the lubricating system before any bearing knock is heard.A． T oo largerB． Too smallerC． ExcessD．Excessive √46.A cast steel strong back is fitted in way of the combustion space to help absorb _____.A． flame temperatureB． fuel oilC． air movementD．gas forces √47.A charge of fresh air is drawn into the engine cylinder and then _____ by the movingpiston_____ very high pressure.A． pressed/toB． pressurized/withC． pushed/inD．compressed/to √48.A common trouble with the fuel pump plunger or fuel valve spindle is _____.A． water leakageB． steam leakageC．oil leakage √D． air leakage49.A common trouble with the fuel pump plungers or fuel valve spindle is _____.A． broken downB． stuckC．oil leakage √D． carbonized50.A diesel engine is similar to a gasoline engine except that the former has no _____.A． cross-headB． cylinderC． connecting rodD．spark plug √51.A diesel engines crankcase oil level is found to be too highYou should suspect that _____.A． the engine was over filledB． there might be a fuel leakC． there might be a water leakD． all of the above √52.A distance piece, known as a _____ may be interposed between the rod and the bearinghousing.A． bearing shellB． bearing linerC．compression plate √D． lead wire53.A distance piece, with ground faces, known as a compression plate, may be interposedbetween the rod and the beating housing, its thickness being chosen to ensure the correct _____.A． compression pressureB． compression testC．compression ratio √D． compression clearance54.A distance piece, with ground faces, may be interposed between the rod and the bearinghousing, its thickness being chosen to ensure the correct _____.A． expansion ratioB． pressure ratioC．compression ratio √D． clearance ratio55.A governor automatically controls engine speed by regulating _____.A． fuel s upply √B． firing orderC． engine loadD． oil level56.A gudgeon pin in a trunk piston may be free to float and rotate, with _____ to limitaxial movement.A． split pinsB． crankpinsC． dipsticksD．circlips √57.A heater in the circuit facilitates warning of the engine prior to ____ by circulatinghot water.A．starting √B． stoppingC． to startD． to stop58.A high temperature alarm or _____ which will melt is used to guard against the explosionof compressor air pipelines.A． a flame trapB． a relief valveC．a fusible plug √D． a bursting cap59.A hot air start pipe indicates that there is _____.A． inefficient coolingB．a leaking air start valve √C． a clogged drain valveD． a leaking air bottle60.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 level61.A lubricant often has to perform many duties in any situation, in addition to itsfundamental job of_____.A． resisting oxidizationB．reducing friction √C． promoting moving speedD． developing inertia62.A main bearing consists of two shells which are secured by means of studs and _____.A． tie rodsB． through boltsC． lead wiresD．bearing caps √63.A number of cylinder liners are enclosed in one cast iron casing to form a _____.A． cylinder coverB．cylinder block √C． cylinder frameD． bed-plate64.A reduction in load on a diesel engine results in _____ of speed of the crankshaft.A． a reductionB．an increase √C． an outingD． a downwards65.A separate piston cooling system is used _____ any contamination from piston coolingglands to the piston cooling system only.A． to helpB．to limit √C． to protectD． to remove66.A separate piston cooling system is used to limit any contamination _____ piston coolingglands_____ the piston cooling system only.A． between, toB． either, orC．from, to √D． neither, nor67.A single piece_____ fitted with bronze rings guides the piston in the cylinder liner.A．piston skirt √B． piston crownC． guide wayD． cross-head68.A variable pitch propeller is made _____ a boss with separate blades mounted into it.A． ofB．up of √C． fromD． out69.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 it70.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 temperature71.According to the way the energy of the exhaust gases is utilized, pressure-charging canbe divided into two main systems, namely, the constant-pressure system and _____.A． the pulse-phase systemB． the pulse Doppler systemC．the pulse system √D． the pulse interval72.Acid solution in the system can be tested from time to time by putting some on to a pieceof lime.A．strength √B． denseC． percentageD． velocity73.Additives _____ protective layers on metal surfaces guarding them against corrosion.A． damageB．form √C． dissolveD． contaminate74.Adjust _____ by means of lead wire.A．the clearance of the main bearing √B． the diameter of main bearingC． the gap of main beatingD． the tolerance of main bearing75.Administrations should bear in mind the significance of_____ in maintaining safety oflife and property at sea and in preventing marine pollution.A． advanced nautical equipmentB． advanced performance main enginesC． emergency equipmentD． communicati on and language skills √76.A-frames and cylinder block is held together by _____ to form a rigid structure.A． connecting rodsB． piston rodsC．tie rods √D． jack-bolts77.A-frames are mounted on the bed plate and support _____ and cylinder block.A． the main bearingB． the cylinder coverC．the entablature √D． the sump78.After "F.W.E." is given, the air system is shut down, the _____ gear put in, all drainsand indicator cocks opened, and the cooling water kept running.A． steeringB． timingC．turning √D． running79.After ensuring that the _____ is correct the bearing clearance should be checked.A． napB． gapC．nip √D． deflection80.After fitting back in place the gear wheels, dont forget _____ them.A．to grease √B． greasingC． oilingD． lubricating81.After passing through the turbine the exhaust gas is conducted out into the _____.A． intercoolerB． compressorC． cylinderD．open air √82.After the engine is warned, we should_____ the turning gear before starting up the engine.A． take inB． put inC．take out √D． put up83.After the order “_____” is given, the air system is shut down, the turning gear putin.A．Finished with Engine √B． Stop the EngineC． Stand-by EngineD． Slow-down Engine84.Air cocks, usually positioned at the _____ in a circulating system, is used to get ridof the air in the system.A． bending jointB． expansion tankC． weldD．the highest point √85.All the rings are slightly rounded on their external top and bottom edges to keep theoil film on the cylinder liner during _____ for new piston rings.A． the running-in period √B． the running processC． gas exchange processD． the boiler firing86.All three systems have the ports _____ to swirl the incoming air and direct it in theappropriate path.A． angledB． roundedC． being angledD．being rounded √87.Although the crankshafts of medium diesel engines appear to be robust, they rely on thesupport of _____ to develop their full strength.A． the piston rodsB． the crank throwsC． the thrust bearingsD． the main bear ings √88.Aluminum pistons have _____ coefficient of thermal expansion compared with those of castiron.A．higher √B． lowerC． the sameD． none of the above89.Among the rings of a piston the _____ one is subjected to the greatest load and temperature.A． bottomB． middleC．top √D． none of the above90.An aluminum piston has lower inertia and higher coefficient of _____ compared to thatof cast iron.A． viscosityB． twisting momentsC． inertiaD．thermal expansion √91.An electrically driven automatically operating auxiliary blower is provided for slowspeed and _____ of a low speed diesel engine.A．manoeuvring operations √B． bad combustionC． coolingD． mooring trial92.An increase in load on a diesel engine results in _____ of speed of the crankshaft.A．a reduction √B． an increaseC． an outingD． a downwards93.An interlock in the remote operating valve line stops the valve _____ when the engineturning gear is engaged.A． to openB．opening √C． openD． opened94.An overspeed safety device is usually fitted to a generator engine for _____ in the eventof overspeed.A．cutting power off the engine √B． increasing the fuel pump settingC． braking the crankshaftD． stabilizing the ship speed95.As a heat engine, _____ energy is the source of power by which the diesel engine canbe operated.A． electricB．heat √C． mechanicalD． exhaust96.As for a diesel engine, lack of combustion air may be due to _____.A．fouling turbine √B． fuel pump faultsC． lubrication failureD． excessive cooling97.As the plunger moves up, the ports are closed and the fuel _____ and delivered to theinjector nozzle at very high pressure.A． being compressedB． to be pumped upC．is pressurized √D． are built up98.At least _____ cylinders in four-stroke engine will be configured to ensure that theengine can be started with the crankshaft at whatever position.A．6 √B． 2C． 12D． 899.At the top of the A-frames there is a strong cast iron frame called _____.A． cylinder linerB． cylinder coverC． the gear boxD． the sc avenging box √100.Be sure to make the engine turn by _____ before starting and after stopping.A． steering gearB．turning gear √C． steering wheelD． turning cycle101.Bearing knocks are likely to occur from _____.A． less clearanceB． dirty lube oilC． overloadD．bearing wear √102.Because the castings of smaller engines are not so big and heavy, _____ and cylinder block may be made in one piece.A．the column √B． the jacketC． cylinder coverD． cylinder liner103.Bedplates are the _____ of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.A． hullB． projectionC． graphitizationD．foundation √104.Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine _____ 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 windlass105.Before a marine diesel engine is started the cylinders and pistons must be _____.A． cooled to appropriate temperatureB．warmed up gradually to appropriate temperature √C． opened up and renewedD． ground and polished106.Before being used the fuel service tank should be drained of _____.A． soda solutionB． mechanical impuritiesC． ballastD．water and residuals √107.Before pumping up the crankcase oil, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear108.Before replacing a piston you should check that all rings are _____.A．free √B． fastenedC． brokenD． stuck109.Before replacing a piston you should check the rings to see that all clearances and gaps are _____ the permissible tolerances.A． aboveB． atC． overD．within √110.Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible _____.A． deflectionB． discrepancyC． errorD．tolerance √111.Before starting the engine the air bottle should be _____.A．pumped up √B． loadedC． dischargedD． opened112.Before starting the turning gear, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear113.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 √114.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 leaking115.Bridge gauge can be used to measure _____ of a diesel engine.A．diameters of journals √B． deflections of crankwebsC． diameters of crankpinsD． none of the above116.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 abo ve √D．to prevent the lubricating oil from leaking out of the filter element117.Cast iron carrier rings, _____ machined grooves, are provided for all the pistons.A．caulked into √B． caulking intoC． pressed intoD． screwed into118.Charging is the filling of the engine cylinder with a supply of _____ for compression.A． waterB．fresh air √C． fuel oilD． gas119.Charging is the filling of the engine cylinder with a supply or charge of fresh air _____ compression.A． to needB．ready for √C． want toD． going to be120.Charging-air pressure increases if there is incorrect combustion and drop in the _____ of the diesel engine.A． machine efficiencyB． machinery efficiencyC．mechanical efficiency √D． mechanics efficiency/doc/5c7732040.html,pressed air is supplied by air compression to _____.A．the air receivers √B． the starting valvesC． the cylinder coversD． the distributors/doc/5c7732040.html,pressed air is used on board ship _____.A． for starting diesel enginesB． in pneumatic control systemC． in pneumatic toolsD．All the above are true √123.Constant cooling the various components of diesel engine has a number of functions except for _____.A． good lubricationB． low thermal stressC． good mechanical propertiesD．acid corrosion √124.Cooling enables the engine metals _____ their mechanical properties.A．to retain √B． to remainC． to maintenanceD． to have125.Cooling of engine is achieved by circulation a cooling liquid around internal passages within the _____.A． boilerB． heaterC．engine √D． cooler126.Cooling of engines is achieved by _____ a cooling liquid around internal passages within the engine.A． flowedB． flowingC． mixingD．circulating √127.Cooling of engines is achieved by circulating a cooling liquid around internal _____ within the engine.A． air。
