《轮机英语》大管轮考证必备

1、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

2、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 alignment in particular, and engine structure as a whole, would inevitably be lost.A FrameB Bedplate C CylinderD Liner4. _ are commonly used in

3、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 give maintenance access to the crankshaft main and connecting rod large end bearing.A Doors B Aspirate gauzerC CouplingD Blind6. _

4、arrangements have low temperature air and high temperature exhaust gas passing through adjacent ports, causing temperature differential problems for the liner material.A Loop scavenge B Cross scavengeC Uniflow scavengeD Supercharge7. _ became oval, it should be machined.A The upper half of cross-hea

5、d bearingB The cross-head pin C The cross-head bearingD The cress-head guide plate8. _ 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 interlocking9. _ fuel oils _ lubricating oils

6、require treatment before passing to the engine.A Both/and B Neither/norC Either/orD Both/or10. _ is sometimes used for piston cooling since leaks into the crankcase would not causeproblems.A Diesel oilB Hydraulic oilC Lube oil D Mineral oil11. _ is the removal of exhaust gases by blowing in fresh ai

7、r.A Gas exchangeB ChargingC Scavenging D Supercharging12. _ 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 13. _ may be t

8、he 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 clearance14. _ of an engine crankshaft can be detected by measuring deflections of crank websfor each unit of the engine.A M

9、isalignment B LengthC StrengthD Stresses15. _ 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 bottom16. _ pistons have low inertia and high coefficient of thermal expansion.A Cast ironB Cast steelC Forged steelD Aluminu

10、m 17. _ scavenging means both exhaust ports and scavenging ports are arranged to the sameside.A UniflowB CrossC Loop D Straight18. _ 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 T

11、he chief engineerC The person on a bunker bargeD Any of the above19. _ tappet clearance will cause the exhaust valve to open early and close late in cycleand will increase its maximum lift.A ExcessiveB Insufficient C CorrectD None of the above20. _ tappet clearance will cause the exhaust valve to op

12、en late and close early in cycleand will reduce its maximum lift.A CorrectB InsufficientC Excessive D None of the above21. _ 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 s

13、uction strokeC At the end of the working strokeD At the end of the exhaust stroke22. _ the supercharge pressure is, _ power an engine develops.A The higher/the more B Higher/moreC Higher/littleD The higher/the less23. _ is not properly set thus causing either advanced or retarded firing.A A pistonB

14、A fuel injection pump C A feed water pumpD A lube oil pump24. _ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder.A PistonB SoundingC Regulating D Connecting25. _ shows 1.2 meter and the specific gravity of the oil is 0.96. According to themeasuring scal

15、e, that makes 150 tons.A The piston rodB The push rodC The sounding rod D The connecting rod26. _ 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 tank27. _ at the end of the distribution pipe ensures that adequate pressure is maint

16、ainedby the pump.A A relief valveB An alarm C A pressure gaugeD A non-maim valve28. _ is used for washing and drinking.A The ballast systemB The salt water systemC The bilge systemD The domestic system 29. _ provide the water to the pistons.A Pneumatic pipesB Hydraulic pipesC Telescopic pipes D Oper

17、ating gas pipes30. _ are fitted in the exhaust system and facilitate charge removal and scavenging ineach cylinder.A Diffusers B CompressorsC Steam boilersD Soot blowers31. _ are formed by abrasive particles entering the bearing and scoring the shaft.A Grooves B RecessesC RidgesD Nips32. _ are mount

18、ed on and bolted to the bed-plate cross girders.A The crankshaftB The crankcaseC The guide-waysD The frames 33. _ is a precaution which contributes to avoiding trouble under normal operatingconditions.A Constant inspection B Keeping constant loadC Remaining constant temperatureD varying speed34. _ i

19、s a source of power by which the diesel engine may operate.A Water energyB Electrical energyC Chemical energyD Heat energy 35. _ 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 generator36. _ is ful

20、ly 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-pin37. _ 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 screw38. _ i

21、s usually driven by the engine camshaft and supplies pilot air to the cylinderair start valve.A An air receiverB An operating valveC An automatic valveD An air distributor 39. _ neutralizes the acid conditions and_ cleanses the rings and grooves.A The detergency/the alkalinityB The alkalinity/the de

22、tergency C The inhabitant/the waterD The additives/the distilled water40. _ of the controllable pitch propeller enables the blades to be moved to change thepitch angle.A An external mechanismB An internal mechanism C An interlock deviceD A hunting gear system41. _ on a ship transmits power from the

23、engine to the propeller.A Automatic control systemB Speed regularly systemC The transmission system D Compression air system42. _ or air venting arrangement is fitted to the fuel supply passage.A An air pumpB A compressorC A fuel pumpD A priming 43. _ providing lubricating films, oil used in marine

24、diesel engines have to remove heatfrom oil cooled piston.A Except forB BesideC ExceptD In addition to 44. _ 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 commonly45. _ water is more expensive t

25、han fresh water. It has high specific heat and low viscosity.A Distilled B DistillingC BoilingD Boiled46. _ 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 oil47. _ in what position

26、 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 48. _ is secured by means of side-chock bolts and end-chock bolts.A The bedplate B The columnC The main bearingD The do

27、uble bottom49. _ controls the fuel oil temperature in order to provide oil at the correct viscosityfor combustion.A The viscosity regulator B The temperature controllerC The flow meterD The pressure switch50. _ for attachment to the propeller shaft also accommodates the turning gear and isintegrally

28、 forged with the crankshaft.A The coupling flange B The camshaftC The cross-head pinD The cylinder jackets51. _ should be taken out, cleaned, and lifting checked every four to six months.A PistonsB Fuel injection valves C CrankshaftD Cylinder covers52. _ usually helps to induce air movement to assis

29、t combustion.A Cylinder coverB Main bearingC The exhaust valveD The piston movement 53. _ may have two emergency source of power, thus requiring two emergency switchboards.A Large passenger vessels B General cargo shipsC Container shipsD Oil tankers54. _ supplies pilot air to control the cylinder ai

30、r start valves.A An air compressorB An indicator cockC An air distributor D A safety valve55. _ less equipment in contact with sea water, the corrosion problems are much reducedin a central cooling system.A BecauseB With C WithoutD Though56. _ clearances in the main or crank pin bearings will someti

31、mes be indicated by lossof pressure in the lubricating system before any bearing knock is heard.A Too largerB Too smallerC ExcessD Excessive 57. A _ on the delivery side of the pump closes to stop fuel oil returning from the injector.A return valveB non-return valve C safety unitD stop valve58. A _

32、ensures a constant pressure at the fuel main.A transfer pumpB control air bottleC pressure regulating valve D non-returning valve59. 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 60. A charge of fresh air is

33、 drawn into the engine cylinder and then _ by the movingpiston_ very high pressure.A pressed/toB pressurized/withC pushed/inD compressed/to 61. A common trouble with the fuel pump plunger or fuel valve spindle is _.A water leakageB steam leakageC oil leakage D air leakage62. A common trouble with th

34、e fuel pump plungers or fuel valve spindle is _.A broken downB stuckC oil leakage D carbonized63. A diesel engine is similar to a gasoline engine except that the former has no _.A cross-headB cylinderC connecting rodD spark plug 64. A diesel engines crankcase oil level is found to be too high. You s

35、hould suspect that_.A the engine was over filledB there might be a fuel leakC there might be a water leakD all of the above 65. A distance piece, known as a _ may be interposed between the rod and the bearinghousing.A bearing shellB bearing linerC compression plate D lead wire66. A distance piece, w

36、ith 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 clearance67. A distance piece, with ground faces, may be interposed b

37、etween the rod and the bearinghousing, its thickness being chosen to ensure the correct _.A expansion ratioB pressure ratioC compression ratio D clearance ratio68. A governor automatically controls engine speed by regulating _.A fuel supply B firing orderC engine loadD oil level69. A gudgeon pin in

38、a trunk piston may be free to float and rotate, with _ to limitaxial movement.A split pinsB crankpinsC dipsticksD circlips 70. A heater in the circuit facilitates warning of the engine prior to _ by circulatinghot water.A starting B stoppingC to startD to stop71. A high temperature alarm or _ which

39、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 cap72. 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 bottle73. A level gaug

40、e for a tank is to _.A give the pressureB give the contents C give the shape of the tankD give the accuracy level74. A low speed engine requires _ reduction gearbox _ it and propeller.A none/bothB no/bothC none/betweenD no/between 75. A lubricant often has to perform many duties in any situation, in

41、 addition to itsfundamental job of_.A resisting oxidizationB reducing friction C promoting moving speedD developing inertia76. A main bearing consists of two shells which are secured by means of studs and _.A tie rodsB through boltsC lead wiresD bearing caps 77. A number of cylinder liners are enclo

42、sed in one cast iron casing to form a _.A cylinder coverB cylinder block C cylinder frameD bed-plate78. A number of different scavenging methods _ in slow speed two-stroke engines.A are in use B is usedC are usingD has been used79. A reduction in load on a diesel engine results in _ of speed of the

43、crankshaft.A a reductionB an increase C an outingD a downwards80. A sealing arrangement is provided at _ of the tail-shaft with the propeller and conecompleting the arrangement.A both endsB neither endC the outboard endD either end 81. A separate piston cooling system is used _ any contamination fro

44、m piston coolingglands to the piston cooling system only.A to helpB to limit C to protectD to remove82. 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, nor83. A single piece_ fit

45、ted with bronze rings guides the piston in the cylinder liner.A piston skirt B piston crownC guide wayD cross-head84. A slow-speed two-stroke diesel is usually arranged to operate continuously on heavy fueloil and has available a _ supply for manoeuvring conditions.A lubricating oilB diesel oil C re

46、sidual oilD hydraulic oil85. A variable pitch propeller is made _ a boss with separate blades mounted into it.A ofB up of C fromD out86. A: Please tell me the specifications and quantity. B: _.A Pump diesel oil firstB 300 tons of 180 cst fuel oil C The figure is all rightD OK, Ill sign it87. About h

47、alf 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 temperature88. According to the way the energy of the exhaust gases is utilized, pressure-cha

48、rging 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 interval89. Acid solution in the system can be tested from time to time by putting some on to a pieceof lime.A strength B denseC perc

49、entageD velocity90. Additives _ protective layers on metal surfaces guarding them against corrosion.A damageB form C dissolveD contaminate91. 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 bearing92. A

50、dministrations 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 communication and language skills 93. A-frames and cylinder block is hel

51、d together by _ to form a rigid structure.A connecting rodsB piston rodsC tie rods D jack-bolts94. A-frames are mounted on the bed plate and support _ and cylinder block.A the main bearingB the cylinder coverC the entablature D the sump95. After "F.W.E." is given, the air system is shut do

52、wn, the _ gear put in, all drainsand indicator cocks opened, and the cooling water kept running.A steeringB timingC turning D running96. After ensuring that the _ is correct the bearing clearance should be checked.A napB gapC nip D deflection97. After fitting back in place the gear wheels, dont forg

53、et _ them.A to grease B greasingC oilingD lubricating98. After passing through the turbine the exhaust gas is conducted out into the _.A intercoolerB compressorC cylinderD open air 99. After the engine is warned, we should_ the turning gear before starting up the engine.A take inB put inC take out D put up100.After the order “_” is given, the air system is shut down, the turning gear putin.A Finished with Engine B