11规则大连海事最新轮机英语题库翻译9

Valve drive mechanismThe valve drive mechanism commands the inlet and exhaust valves at the required timing.第3题The valve drive mechanism consists of an inlet and exhaust cam follower (8) each suspended in a plunger of the tappet assembly (7), two tubular push rods (4) with ball joints, two nodular cast iron rocker arms (2) suspended in a rocker arm bearing bracket, two yokes (5) and a yoke guide pins. See Fig. 4-1.The tappet rollers follow the cam profiles and transfer the movements through push rods to the rocker arms.第4题The rocker arms operate the inlet and exhaust valves through yokes (5).Lubrication for the rocker arms comes from the engine's secondary oil supply manifold throughdrillings in the cylinder head and rocker arm bracket.第2题The tappet assembly receives lubricating oil via channels in the engine block from the main supply manifold. For the roller and shaft, the oil is supplied through the guiding plunger.第4题To compensate for heat expansion a clearance must exist between the rocker arm and yoke.第1题All adjustments have to be done on a cold engine only.1. According to the Passage, the best time to adjust the valve clearance is _____.A. before the engine is startedB. when the engine is runningC. after the engine has just been stoppedD. when something has gone wrong with the engine注：根据文章来看，调节阀间隙的最好时间是在发动机启动之前。

海员机舱工作英语原创廣凌君大连广凌海事技术服务有限公司轮机英语基本知识Ⅰ.主机提交过程用语：（f o r M a i n E n g i n e）1、请验收轴系找中。

P l e a s e c h e c k t h e a l i g n me n t o f t h e s h a f t i n g.2、请验收主机对中。

P l e a s e c h e c k t h e a l i g n me n t o f M/E.3、请验收主机曲轴拐档（甩档） P l e a s e c h e c k a n d a c c e p t t h e c r a n k s h a f t d e f l e c t i o n.4、主机联结（贯穿）螺栓测力验收 A p p r o v a l o f f o r c e me a s u r e me n t o f M.E.t h r o u g h b o l t s.5、紧拂螺栓安装验收。

A p p r o v a l o f t h e i n s t a l l a t i o n o f f i t t e d b o l t s.6、紧拂螺栓孔验收。

A p p r o v a l o f t h e f i t t e d b o l t h o l e s.7、中间轴测力验收 A p p r o v a l o f f o r c e me a s u r e me n t o f i n t e r me d i a t e s h a f t.8、中间轴承间隙验收 A p p r o v a l o f i n t e r me d i a t e b e a r i n g c l e a r a n c e.9、主机找中不好 T h e a l i g n m e n t o f M/E i s i n c o r r e c t.10、轴系找中不好 T h e a l i g n me n t o f s h a f t i n g i s i n c o r r e c t.11、曲轴拐档超差 T h e c r a n k s h a f t d e f l e c t i o n i s o v e r t h e a l l o w a n c e.12、请调整到范围内 P l e a s e ma k e a n a d j u s t me n t.13、主机爆压 E x p l o s i v e P r e s s u r e o n M/E.14、主机轴马力T h e B H P(b r a k e h o r s e p o w e r)o f M/E15、主机扭力 T h e t o r s i o n a l f o r c e o f M/E.16、主机旁撑 M.E.s i d e s u p p o r t.17、主机尾撑 M.E.s t e r n s u p p o r t18、主机拉撑 M.E.f a s t e n i n g s u p p o r t19、起动主机 S t a r t ma i n e n g i n e20、起动反向 S t a r t M/E r e v e r s e l y21、排温高（低） E x h a u s t t e mp e r a t u r e i s t o o h i g h(l o w).22、爆压高（低） E x p l o s i v e p r e s s u r e o n M/E i s t o o h i g h(l o w).23、冷却水温度高（低）T h e t e m p e r a t u r e o f t h e c o o l i n g w a t e r i s t o o h i g h(l o w).24、启动空气压力低 T h e p r e s s u r e o f s t a r t i n g a i r i s t o o l o w.25、滑油压力低 T h e p r e s s u r e o f l u b o i l i s t o o l o w.26、扫气压力低 T h e p r e s s u r e o s c a n v a g e a i r i s t o o l o w.27、增压器转速低 T h e r p m o f t u r b o c h a r g e r i s t o o l o w.28、开启（关闭）主启动阀 S t a r t(S t o p)t h e ma i n s t a r t i n g v a l v e.29、启动（关闭）主滑油泵 S t a r t(S t o p)t h e ma i n L.O.p u m p.30、启动辅助鼓风机 S t a r t t h e a u x i l i a r y(a n x.)b l o w e r.31、启动主海水冷却泵 S t a r t t h e m a i n s e a w a t e r c o o l i n g p u mp.32、主机暖机 P r e h e a t t h e M/E c y l i n d e r.33、循环滑油预热 P r e h e a t t h e L.O.c i r c u l a t i n g p u m p.34、启动（关闭）燃油循环泵 S t a r t(S t o p)t h e F.O.c i r c u l a t i n g p u mp.35、启动（关闭）燃油供给泵 S t a r t(S t o p)t h e F.O.s u p p l y p u m p.36、燃油压力高（低） T h e p r e s s u r e o f F.O.i s h i g h(l o w).37、燃油调压阀失灵 T h e F.O.p r e s s u r e a d j u s t i n g v a l v e d o e s n’t w o r k.38、轻油转重油 C h a n g e f r o m l i g h t o i l t o h e a v y o i l.39、主机启动（反向）试验 M/E s t a r t i n g(r e v e r s i n g)t e s t.40、应急停车试验 T e s t o f e me r g e n c y s t o p.41、集控室操纵 T h e e n g i n e c o n t r o l r o o m c o n t r o l(t h e c o n t r o l f r o m t h e c o n t r o l r o o m)42、机旁操纵 L o c a l c o n t r o l43、桥楼遥控操纵 T h e r e m o t e c o n t r o l f r o m t h e b r i d g e.44、主机飞车保护试验 P r o t e c t i o n t e s t o f M/E f l y w h e e l t r i p.45、淡水高温停车试验 S h u t-d o w n t e s t o f F/W.h i g h t e mp.46、滑油低压停车试验 S h u t-d o w n t e s t o f L.O.l o wp r e s s.47、高压油泵齿条格数 T o o t h s e c t o r o f h i g h p r e s s u r e o i l p u mp.48、喷油提前角太大（小）T h e a d v a n c e a n g l e i s t o o l a r g e(s ma l l).49、喷油嘴雾化不良 T h e a t o mi z a t i o n o f n o z z l e i s t o o p o o r.50、喷油嘴压力太高（低）T h e p r e s s u r e o f n o z z l e i s t o o h i g h(l o w).51、喷油嘴漏油 T h e n o z z l e l e a k a g e.52、盘车装置离合保护试验 T h e p r o t e c t i o n t e s t o f t u r n i n g g e a r c l u t c h.53、调速器有故障 T h e g o v e r n o r h a s f a i l e d.54、液压链条压紧装置 H y d r a u l i c c h a i n t i g h t e n e r.55、缸头启动阀 T h e c y l i n d e r c o v e r s t a r t i n g v a l v e.56、缸头启动阀发烫 T h e c y l i n d e r c o v e r s t a r t i n g v a l v e i s t o o h o t.57、缸头启动阀漏气 T h e c y l i n d e r c o v e r s t a r t i n g v a l v e l e a k a g e.58、气缸油单向阀漏 T h e c y l i n d e r o i l o n e-w a y v a l v e l e a k a g e.59、气缸油单向阀装反 T h e c y l i n d e r o i l o n e-w a y v a l v e i s f i t t e d r e v e r s e l y.60、气缸油进油过多(少) T h e i n l e t c y l i n d e r o i l i s t o o mu c h(l i t t l e).61、拉缸 C y l i n d e r s c o r e62、咬缸 C y l i n d e r s e i z i n g63、敲缸 C y l i n d e r k n o c k i n g64、燃烧不良 P o o r c o mb u s t i o n65、排气中有水份 T h e e x h a u s t g a s i s w i t h w a t e r v a p o u r.66、排气冒黑烟（呈淡蓝色） T h e e x h a u s t g a s i s b l a c k（l i g h t b l u e）.67、排气管振动（漏烟） E x h a u s t p i p e v i b r a t i o n(l e a k a g e).68、排气管增加支架 A t t a c h e d b r a c k e t o f e x h a u s t p i p e.69、排气管支架螺丝未扳紧 T h e b r a c k e t o f e x h a u s t p i p e.70、冷却水管漏水 T h e c o o l i n g w a t e r p i p e l e a k a g e.71、滑油管漏油 L.Op i p e l e a k a g e.72、油底壳(循环滑油舱/主机内部)不干净T h e O i l p a n（T h e c i r c u l a t i n g L.O.t a n k/T h e i n s i d e o f M/E）i s n o t c l e a n.73、主机出油点不畅 T h e M/E o i l o u t l e t s a r e b l o c k e d.74、主机内部螺丝保险未装好 T h e s a f e t y o f i n n e r s c r e wo f M/E i s n o t f i t t e d p r o p e r l y.75、主机贯穿螺丝泵紧提交 M.E.t h r o u g h b o l t s u b m i s s i o n.76、主机底脚紧固螺丝提交 M.E b o t t o m f a s t e n i n g b o l t s u b m i s s i o n.77、滑油（燃油）自清滤器不动作 T h e L.O.(F.O.)f i l t e r d o e s n’t w o r k。

Passage 1（原题库第1篇）Valve drive mechanismThe valve drive mechanism commands the inlet and exhaust valves at the required timing.第3题The valve drive mechanism consists of an inlet and exhaust cam follower (8) each suspended in a plunger of the tappet assembly (7), two tubular push rods (4) with ball joints, two nodular cast iron rocker arms (2) suspended in a rocker arm bearing bracket, two yokes (5) and a yoke guide pins. See Fig. 4-1.The tappet rollers follow the cam profiles and transfer the movements through push rods to the rocker arms.第4题The rocker arms operate the inlet and exhaust valves through yokes (5).Lubrication for the rocker arms comes from the engine's secondary oil supply manifold throughdrillings in the cylinder head and rocker arm bracket.第2题The tappet assembly receives lubricating oil via channels in the engine block from the main supply manifold. For the roller and shaft, the oil is supplied through the guiding plunger.第4题To compensate for heat expansion a clearance must exist between the rocker arm and yoke.第1题All adjustments have to be done on a cold engine only.1. According to the Passage, the best time to adjust the valve clearance is _____.A. before the engine is startedB. when the engine is runningC. after the engine has just been stoppedD. when something has gone wrong with the engine注：根据文章来看，调节阀间隙的最好时间是在发动机启动之前。

[5482]High pressure and low pressure alarms must be tested ______.A. no earlier than 24 hours prior to loadingB. no later than 24 hours prior to loadingC. anytime prior to loadingD. weeklyKEY: A[5483]Horizontal subdivision decks forming watertight compartments in the columns of a semisubmersible ship increase the unit's ______.A. tank capacitiesB. stability in the event of damageC. towing speedD. anchor holding ratioKEY: B[5484]Hot air can hold ______.A. less moisture than cold airB. more moisture than cold airC. the same amount of moisture as cold airD. moisture independent of air temperatureKEY: B[5485]How are riveted lap joints made watertight?A. The faying surfaces are coated with white lead (or similar product) before the rivets are set.B. A sealing weld bead of 1/8" or less pitch is run along the plate edge.C. The plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plate.D. A properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets.KEY: C[5486]How can the Coast Guard determine that a crew member is "able to understand any order spoken by the officers"?A. Require a demonstration by the officer and the crew memberB. Require a written testC. Require that an interpreter be providedD. All of the aboveKEY: A[5487]How can you estimate the position of a tropical storm's center?A. With a radio weather bulletin or weather faxB. using shipboard radarC. observe the wind direction and apply Buys Ballot's lawD. All of the aboveKEY: D[5488]How could lashing gear used aboard Ro-Ro vessels be stowed when not in use?A. Drape along bracketsB. Hang vertically in a sheltered areaC. Stow in bins at hatch coming sideD. All of the aboveKEY: D[5489]How do the height and location of a tug's towing bitts relate to the danger of tripping?A. The further forward and closer to amidships the more readily the tug will trip.B. Placement further aft permits more effective pulling，better steering and eliminates the danger of tripping.C. Installing the bitts down low lowers the center of gravity.D. The height and position of towing bitts has no significance. KEY: A[5490]How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?A. This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer.B. Determine the point where aground and the draft at that point，then calculate it using the grounding formula.C. Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding.D. Use the inclining experiment formula and substitute the change of trim for the angle of list.KEY: C[5491]How do you operate a portable CO2 fire extinguisher?A. Point the horn down.B. Turn cylinder upside-down.C. Break the rupture disc.D. Pull pin，squeeze grip.KEY: D[5492]How does a coast radio station communicating by HF radio normally identify itself?A. By its subscriber numberB. By its call signC. By its MMSID. By its MIDKEY: B[5493]How does a vessel's rate of turn change when entering shallow water?A. It is faster.B. It is slower.C. There is no change.D. It remains constant for varying propeller revolutions.KEY: C[5494]How does an icebreaker normally free a ship which has become beset while navigating independently?A. By backing down the track and cutting out ice on either bowB. By approaching from the stern and crossing ahead at an angle of 20°to 30°to the beset ship's courseC. By overtaking the beset ship，running ahead and then backing down the track to the beset vesselD. By approaching the vessel from astern and towing the beset vessel stern firstKEY: B[5495]How does foam extinguish an oil fire?A. By cooling the oil below the ignition temperatureB. By removing the fuel source from the fireC. By excluding the oxygen from the fireD. By increasing the weight of the oilKEY: C[5496]How does the effect known as "bank suction" act on a single-screw vessel proceeding along a narrow channel?A. It pulls the stern toward the bank.B. It heels the vessel toward the bank.C. It pushes the entire vessel away from the bank.D. It pulls the bow toward the bank.KEY: A[5497]How is a navigation light identified on an Army Corps of Engineers navigation map?A. Name and light characteristicB. Name and miles from a reference pointC. Light characteristic and miles A.H.P.D. None of the aboveKEY: B[5498]How is a safe water mark，that can be passed close aboard on either side，painted and lighted?A. Black and white stripes with an interrupted quick flashing lightB. Black and red stripes with a Morse (A) lightC. Black and red stripes with an interrupted quick flashing lightD. Red and white stripes with a Morse (A) lightKEY: D[5499]How is the annual rate of change for magnetic variation shown on a pilot chart?A. Gray lines on the uppermost inset chartB. Red lines on the main body of the chartC. In parenthesis on the lines of equal magnetic variationD. Annual rate of change is not shown.KEY: A[5500]How is the external flotation bladder of an immersion suit inflated?A. It is inflated by a small CO2 bottle that is automatically tripped when the front zipper is at the top of the zipper track.B. It is inflated by a small CO2 bottle that is manually tripped.C. It is inflated by blowing through an inflation tube.D. It inflates by seawater bleeding into the inflation bladder and reacting with a chemical.KEY: C20.8 船舶稳性资料[5501]Inclination of the vessel to port side or starboard side defines ______.A. TipB. CapsizeC. ListD. TrimKEY: C[5502]Initial stability is indicated by ______.A. GMB. KMC. Deck loadD. Maximum allowed KGKEY: A[5503]Increasing the number of slack liquid tanks has the effect of raising the ______.A. uncorrected KGB. maximum allowed KGC. virtual height of the center of gravityD. metacentric heightKEY: C[5504]Increasing free surfaces has the effect of raising the ______.A. uncorrected KGB. virtual height of the center of gravityC. metacenterD. metacentric heightKEY: B[5505]In the presence of external forces，the center of buoyancy of an inclined vessel is vertically aligned with the ______.A. center of gravityB. metacenterC. center of flotationD. keelKEY: B[5506]In small-angle stability，when external forces exist，the buoyant force is assumed to act vertically upwards through the center of buoyancy and through the ______.A. center of gravityB. center of flotationC. metacenterD. metacentric heightKEY: C[5507]In small angle stability，the metacentric height ______. A. is found in the hydrostatic tables for a level vesselB. multiplied by the displacement yields the righting momentC. is always positiveD. is calculated by subtracting KG from KMKEY: D[5508]For small angles of inclination，if the KG were equal to the KM，then the vessel would have ______.A. positive stabilityB. negative stabilityC. neutral stabilityD. maximum stabilityKEY: C[5509]For a vessel with transverse inclination，an increase in GMT causes ______.A. list to stabilize at an angle of lollB. list to decreaseC. trim to decreaseD. list to increaseKEY: B[5510]For a floating vessel，the result of subtracting KG from KM is the ______.A. height of the metacenterB. height of the righting armC. height of the center of buoyancyD. metacentric heightKEY: D[5511]For a floating vessel，the center of buoyancy and the metacenter are in the line of action of the buoyant force ______.A. only when there is positive stabilityB. only when there is negative stabilityC. only when there is neutral stabilityD. at all timesKEY: D[5512]Deballasting a double bottom has what affect on KG? ______.A. KG is increased.B. KG is decreased.C. KG is not affected.D. KG increases at light drafts and decreases at deep drafts.KEY: A[5513]A wind has caused a difference between drafts starboard and port. This difference is ______.A. listB. heelC. trimD. flotationKEY: B[5514]Which of the following is the reason that the metacentric height is a valid measure of only the initial stability？______.A. The metacenter does not remain in the same position for large angles of inclination．B. The center of gravity shifts due to inclination．C. The center of gravity shifts above the metacenter as the vessel is inclined．D. The mean draft will change as the vessel is inclinedKEY: A[5515]What is MTI？______.A. The foot／tons needed to trim the vessel by 1 inch．B. The foot／tons needed to trim the vessel by 1 foot．C. The moments needed to trim the vessel by 1 centimeter．D. The amount of vessel will trim when loading 100 tons 100 feet from the tipping CenterKEY: A[5516]At all angles of inclination，the metacenter is ______.A. vertically above the center of buoyancyB. vertically above the center of gravityC. at the intersection of the upright vertical centerline and the line of action of the buoyant forceD. at the geometric center of the underwater volumeKEY: A[5517]An upright vessel has negative GM. GM becomes positive at the angle of loll because the ______.A. free surface effects are reduced due to pocketingB. KG is reduced as the vessel seeks the angle of lollC. effective beam is increased causing BM to increaseD. underwater volume of the hull is increasedKEY: C[5518]An unstable upright equilibrium position on a vessel means that the metacenter is ______.A. lower than the center of gravityB. at the same height as the center of gravityC. higher than the baselineD. on the longitudinal centerlineKEY: A[5519]All of the following can be determined by use of a stabilogauge EXCEPT ______.A. metacentric heightB. mean draftC. moment to trim one inchD. deadweightKEY: C[5520]A vessel's KG is determined by ______.A. dividing the total longitudinal moment summation by displacementB. dividing the total vertical moment summation by displacementC. multiplying the MT1 by the longitudinal momentsD. subtracting LCF from LCBKEY: B[5521]A serious loss of reserve buoyancy resulting from flooding any compartment of a ship will always ______.A. increase the trimB. change the free surface effectC. cause a serious listD. decrease ship stabilityKEY: D[5522]A floating vessel will behave as if all of its weight is acting downward through the ______.A. center of gravityB. center of buoyancyC. center of flotationD. metacenterKEY: A[5523]A continual worsening of the list or trim indicates ______.A. negative GMB. progressive floodingC. structural failureD. an immediate need to ballastKEY: B[5524]The original equilibrium position is stable when ______.A. metacentric height is positiveB. metacentric radius is positiveC. KG exceeds maximum allowable limitsD. free surfaces are excessiveKEY: A[5525]If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will ______.A. increase the righting momentB. increase the righting armC. increase list or trimD. decrease list or trimKEY: D[5526]Semisubmersibles A and B are identical. However，A is more tender than B. This means that A relative to B has a ______.A. lower KGB. smaller GMC. smaller roll angleD. larger GZKEY: B[5527]The geometric center of the waterplane area is called the ______.A. center of buoyancyB. center of gravityC. metacenterD. center of flotationKEY: D[5528]The maximum length allowed between main，transverse bulkheads on a vessel is referred to as the ______.A. floodable lengthB. factor of subdivisionC. compartment standardD. permissible lengthKEY:[5529]For a ship with longitudinal inclination，an increase in GML causes ______.A. list to stabilize at an angle of lollB. trim to stabilize at an angle of lollC. trim to increaseD. trim to decreaseKEY: D[5530]Forces within a vessel have caused a difference between the starboard and port drafts. This difference is called ______.A. listB. heelC. trimD. flotationKEY: A[5531]The height of the metacenter above the keel will vary depending on the ______.A. draft and beam of the shipB. displacement and deadweight of the shipC. buoyancy and trim of the shipD. tonnage and deadweight of the shipKEY: A[5532]______ refers to the tendency of a body of the ship to return to its original position after it is displaced therefrom．A. StabilityB. ResponsibilityC. LiabilityD. VisibilityKEY: A[5533]______ we have worked out the loading plan，we shall start doing more revision work．A. For nowB. Ever sinceC. Now thatD. By nowKEY: C[5534]A continual worsening of the list or trim indicates ______.A. negative GMB. progressive floodingC. structural failureD. an immediate need to ballastKEY: B[5535]A floating vessel will behave as if all of its weight is actingdownward through the ______.A. center of gravityB. center of buoyancyC. center of flotationD. metacenterKEY: A[5536]A load line of a ship is assigned by ______.A. Minerals Management ServiceB. Department of EnergyC. Corps of EngineersD. A recognized classification society approvedKEY: D[5537]A neutral equilibrium position for a vessel means that the metacenter is ______.A. lower than the keelB. at the same height as the center of gravityC. exactly at midshipsD. at the center of the waterplane areaKEY: B[5538]A partially full tank causes a virtual rise in the height of the ______.A. metacenterB. center of buoyancyC. center of flotationD. center of gravityKEY: D[5539]A ship is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is ______.A. positiveB. negativeC. zeroD. verticalKEY: C[5540]A ship lists and trims about the ______.A. center of gravityB. center of buoyancyC. center of flotationD. centroid of the underwater volumeKEY: C[5541]A ship with the TCG off the longitudinal centerline inclines to an angle of ______.A. listB. heelC. trimD. lollKEY: A[5542]A slow and easy motion of a vessel in a seaway is an indication of a ______.A. small GMB. low center of gravityC. stiff vesselD. large GZKEY: A[5543]A stabilogauge is a calculator used to ______. ①Measure GM．②Measure initial stability．A. ①onlyB. ②onlyC. Both ①and ②D. Neither ①nor ②KEY: C[5544]A vessel trimmed by the stern has a ______.A. listB. dragC. setD. sheerKEY: B[5545]A vessel with a large GM will ______.A. have a small amplitude of roll in heavy weatherB. tend to ship water on deck in heavy weatherC. be subject to severe racking stressesD. be less likely to have cargo shiftKEY: C[5546]Buoyancy is a measure of the ship's ______.A. ability to floatB. deadweightC. freeboardD. midships strengthKEY: A[5547]For a given displacement，the righting arm has its maximum value when ______.A. KG is minimumB. angle of inclination is a maximumC. small-angle stability appliesD. KM is a minimumKEY: A[5548]For small angles of inclination，if the KG were equal to the KM，then the vessel would have ______.A. positive stabilityB. negative stabilityC. neutral stabilityD. maximum stabilityKEY: C[5549]GM cannot be used as an indicator of stability at all angles of inclination because ______.A. M is not fixed at large anglesB. there is no M at large anglesC. G is not fixed at large anglesD. there is no G at large anglesKEY: A[5550]GM is a measure of ______. ①The initial stability of a vessel．②The rightingness of the vessel．A. ①onlyB. ②onlyC. Both ①and ②D. Neither ①nor ②KEY: A20.9 船舶浮性资料[5551]All these containers will be loaded ______ deck．A. inB. upC. aboveD. onKEY: D[5552]Your vessel is damaged，listing to port and on occasion flopping to the same angle to starboard. It has a long，slow，sluggish roll around the angle of list. There is excessive trim by the stern with little freeboard aft. What action should you take？______.A. Jettison any off-center topside weights to lower GM and correct the list.B. Pump out any slack after double-bottom tanks to reduce free surface and increase freeboard aft.C. Pump out the after peak and fill the forepeak to change the trim.D. Press up any slack double-bottom tanks forward of the tipping center，then fill the forepeak if empty.KEY: D[5553]Your vessel is damaged and listing to port. There is a shortrolling period around the angle of list. The portside freeboard is reduced to 1 foot. There is no trim and the weather is calm. You should FIRST ______.A. press up a slack double bottom tank on the port sideB. fill an empty centerline double bottom tankC. pump out a slack marine portable tank located on the portside amidshipsD. jettison the anchors and anchor cablesKEY: C[5554]Your vessel is damaged and is listing to port. The rolling period is short. There is sufficient freeboard so that deck edge submersion is not a problem. What corrective action should be taken FIRST in regard to the vessel's stability? ______.A. Press up any slack double-bottom tanks to eliminate free surfaceB. Flood any empty double-bottom tanks to add weight low and downC. Jettison topside weights to reduce KG and KBD. Shift any off-center weights from port to starboardKEY: D[5555]______ is the vertical distance measured on the vessel's side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it．A. BuoyancyB. FreeboardC. DraftD. DisplacementKEY: B[5556]A common occurrence when a vessel is running into shallow water is that ______.A. the wake is less pronouncedB. the vessel is more responsive to the rudderC. squat will cause a decrease in bottom clearance and an increase in draftD. All of the aboveKEY: C[5557]A current moving across a lock entrance toward the river or toward the dam is called a(n) ______.A. cutoffB. outdraftC. lockwashD. springpoolKEY: B[5558]A deep draft VLCC (100，000 DWT+) navigating in a narrow channel or canal ______.A. draws more water than when underway in deep waterB. draws less water with an increase in speedC. requires less power for a given speedD. steers better under full powerKEY: A[5559]A disk with a horizontal line through its center，equivalent to the summer load line，is called the ______.A. deadrise markB. maximum allowable draft markC. plimsoll markD. tonnage markKEY: C[5560]A large angle of list can be created by which of the following？______. ①Negative initial stability．②Off center weight．A. ①onlyB. ②onlyC. Either ①or ②D. Neither ①nor ②KEY: C[5561]A semisubmersible which will not remain upright and will assume a list either to port or starboard is likely to have ______.A. a large TCGB. a negative GMC. excessive ballastD. insufficient deck loadKEY: B[5562]A ship's forward draft is 22'-04 and its after draft is 23'-00. The draft amidships is 23'-04. This indicates a concentration of weight ______.A. at the bowB. in the lower holdsC. amidshipsD. at the endsKEY: C[5563]A tank which carries liquid is dangerous to the stability of a vessel when it is ______.A. low in the vesselB. completely emptyC. completely fullD. slackKEY: D[5564]A vessel is tender if cargo weight is ______.A. concentrated high and the double bottoms emptyB. concentrated low and the double bottoms emptyC. evenly distributed vertically with the double bottoms fullD. concentrated and with the double bottoms fullKEY: A[5565]A vessel may acquire a list if the center of gravity is ______. ①Off the centerline．②Too high in the vessel．A. ①onlyB. ②onlyC. Either ①or ②D. Neither ①nor ②KEY: A[5566]A vessel would be referred to as tender when the weight of the cargo is ______.A. evenly distributed vertically and the double bottoms are fullB. concentrated low and the double bottoms are emptyC. concentrated low and the double bottoms are fullD. concentrated high and the double bottoms are emptyKEY: D[5567]Aboard a ship，multiplying a load's weight by the distance of the load's center of gravity from the centerline results in the load's ______.A. LCGB. transverse momentC. righting momentD. inclining momentKEY: B[5568]Aboard a vessel，multiplying a load's weight by the distance of the load's center of gravity from the centerline results in the load's ______.A. TCGB. transverse momentC. righting momentD. transverse free surface momentKEY: B[5569]After transferring a weight forward on a vessel，the draft at the center of flotation will ______.A. change，depending on the location of the LCGB. increaseC. decreaseD. remain constantKEY: D[5570]Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in ______.A. INTERNATIONAL LOAD LINE CERTIFICATEB. PASSENGER SHIP SAFETY CERTIFICATEC. CARGO SHIP SAFETY CONSTRUCTION CERTIFICATED. GENERAL DECLARATIONKEY: A[5571]Although KG for a ship in lightweight is relatively high，the vessel is stiff because ______.A. KM is smallB. KM is highC. BL is smallD. KB is largeKEY: B[5572]Deballasting a double bottom has what affect on KG?A. KG is increased.B. KG is decreased.C. KG is not affected.D. KG increases at light drafts and decreases at deep drafts. KEY: A[5573]For a floating vessel，true mean draft is always the ______.A. average of the observed draftsB. draft at the center of flotationC. draft corresponding to the calculated displacementD. mean of the calculated draftsKEY: B[5574]For an upright vessel，draft is the vertical distance between the keel and the ______.A. waterlineB. freeboard deckC. plimsoll markD. amidships sectionKEY: A[5575]If the buoyant force on a ship's hull is equal to the displacement tonnage，the ship will ______.A. require ballastB. be down by the headC. sinkD. floatKEY: D[5576]If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will ______.A. increase the righting momentB. increase the righting armC. increase list or trimD. decrease list or trimKEY: D[5577]In practice，it is usual for the ship to be loaded ______ to improve the vessel's movement through the water．A. a little deeper aftB. a little deeper forwardC. at the same draught between fore and aftD. a balance between two sidesKEY: A[5578]In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the ______.A. center of gravityB. amidships stationC. center of flotationD. geometric center of the waterplane areaKEY: A[5579]Intact buoyancy is a term used to describe ______.A. the volume of all intact spaces above the waterlineB. an intact space below the surface of a flooded areaC. an intact space which can be flooded without causing a ship to sinkD. the space at which all the vertical upward forces of buoyancy are considered to be concentratedKEY: B[5580]It is apparent that there was not sufficient depth of water ______ and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one．A. for my vessel crossing safelyB. my vessel is to cross safelyC. for my vessel to cross safelyD. for my vessel's crossing safelyKEY: C[5581]It'll affect neither the draft ______ the rotation of discharging．A. orB. andC. norD. eitherKEY: C[5582]Keeping the draft at or below the load line mark will insure that the vessel has adequate ______.A. ballastB. reserve buoyancyC. displacementD. rolling periodsKEY: B[5583]My drafts are 28 feet ______ and 29 feet aft．A. foreB. advanceC. beforeD. beforehandKEY: A[5584]On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the ______.A. submerged hullsB. quartersC. columns and upper structureD. submerged connecting structuresKEY: C[5585]On a vessel，multiplying a load's weight by the distance of the load's center of gravity above the baseline results in a(n) ______.A. transverse momentB. vertical momentC. righting momentD. inclining momentKEY: B[5586]On the cargo manifest，the gross weight of a box containing cargo is the weight of the ______.A. cargoB. boxC. cargo and boxD. rate weightKEY: C[5587]Owing to the big draft，the ship is not permitted to go alongside until the time of ______.A. ebb tideB. flood tideC. spring tideD. slack waterKEY: C[5588]Reducing the liquid free surfaces in a vessel reduces the ______.A. roll periodB. metacentric heightC. waterplane areaD. vessel's draftKEY: A[5589]Reserve buoyancy is ______.A. also called GMB. the void portion of the ship below the waterline which is enclosed and watertightC. affected by the number of transverse watertight bulkheadsD. the watertight portion of a vessel above the waterlineKEY: D[5590]Reserve buoyancy is the ______.A. unoccupied space below the waterlineB. volume of intact space above the waterlineC. excess of the buoyant force over the gravity forceD. difference in the buoyant force in salt and fresh watersKEY: B[5591]Shifting weight aft in heavy weather will reduce the tendency to yaw，but may increase the tendency to ______.A. be poopedB. pitchpoleC. broachD. squatKEY: A[5592]Some cargoes are ______ in weight but ______ in size．A. lighter／largeB. light／largerC. lighter／largerD. light／largeKEY: C[5593]The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of ______.A. trimB. yawC. heelD. lollKEY: D[5594]The average of the forward and after drafts is the ______.A. mean draftB. true mean draftC. mean of the calculated draftsD. draft at the center of flotationKEY: A[5595]The center of buoyancy is located at the ______.A. geometric center of the waterplane areaB. intersection of the vertical centerline and line of action of the buoyant forceC. center of gravity of the vessel corrected for free surface effectsD. geometric center of the displaced volumeKEY: D[5596]The center of flotation of a vessel is ______.A. the center of volume of the immersed portion of the vesselB. the center of gravity of the water planeC. that point at which all the vertical downward forces of weight are considered to be concentratedD. that point at which all the vertical upward forces of buoyancy are considered to be concentratedKEY: B[5597]The center of the underwater volume of a floating vessel is the ______.A. center of buoyancyB. center of flotationC. uncorrected height of the center of gravity of the vesselD. center of gravity of the vessel corrected for free surface effects KEY: A [5598]The center of volume of the immersed portion of the hull is called the ______.A. center of buoyancyB. center of flotationC. center of gravityD. tipping centerKEY: A[5599]The controlling depth of the river is ______.A. the minimum depth of the river prescribed in the channel maintenance programB. the edge of a dredged channelC. the highest level to which the river may rise without floodingD. the least available water in a channel which limits the draft of boats and towsKEY: D[5600]The difference between the initial trim and the trim after loading is known as ______.A. trimB. change of trimC. final trimD. change of draftKEY: B20.10 船舶结构与布置[5601]When and where ______ your Registry Certificate issued？A. isB. areC. wasD. wereKEY: C[5602]This certificate was issued {under} the provisions．A. according toB. withC. forD. belowKEY: A[5603]The Tonnage Certificate gives the ______ of a ship which is classified into gross tonnage and net tonnage．A. specificationsB. descriptionsC. dimensionsD. prescriptionsKEY: C[5604]The document which shows a vessel's nationality，ownership，and tonnage is the ______.A. Manifest CertificateB. Bill of Lading CertificateC. Certificate of NationalityD. Official LogbookKEY: C[5605]Deep-sea liners are __________A. ferriesB. passenger linersC. cruise shipsD. ocean going vesselsKEY: d[5606]Merchant vessels can operate in three basic ways，but __________ is not one of them．A. linersB. trampsC. specialized vesselsD. passenger shipsKEY: p。