《轮机英语》二三管轮考证必备

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、device is provided to prevent starting air from being admitted to the cylinder before 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/norC Either/orD Bo

5、th/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 cyl

6、inder 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 runn

7、ing.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 iro

8、n 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 steelC Forged steelD Aluminum 15. _ should not undertake any task which will interfere with the supervision dutiesre

9、lating 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 s

10、troke 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 advance

11、d 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 0.9

12、6According 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 C A head valveD A drain tank22. _ at the end of the distribution pipe ensures

13、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

14、 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 Recess

15、esC 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 te

16、mperatureD 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 dis

17、tillerD 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 paral

18、lelD A fixed pitch screw33. _ is 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 34. _ neutralizes the acid conditions and_ cleanses the rings and grooves.A The detergency/the al

19、kalinityB 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

20、remove heatfrom oil cooled piston.A Except forB BesideC ExceptD In addition 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 h

21、igh 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 w

22、ill 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

23、helps to induce air movement to assist combustion.A Cylinder coverB Main bearingC The exhaust valveD The piston 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

24、 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 Too largerB T

25、oo 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 pr

26、essurized/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

27、 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

28、 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 hou

29、sing, 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 expansio

30、n ratioB pressure ratioC compression ratio D clearance ratio55. A governor automatically controls engine speed by regulating _.A fuel supply 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 crankpin

31、sC 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

32、 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 a

33、ccuracy 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

34、 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 out

35、ingD 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 s

36、ystem 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 fro

37、mD 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, Ill 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 t

38、he 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

39、 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 co

40、ntaminate74. 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 marin

41、e pollution.A advanced nautical equipmentB advanced performance main enginesC emergency equipmentD communication 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 be

42、d 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 run

43、ning79. 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

44、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 En

45、gineC 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

46、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. Alth

47、ough 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 bearings 88. Aluminum pistons have _ coefficient of thermal expansion compared with those of castiron.A hi

48、gher 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 moment

49、sC 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 cran

50、kshaft.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 overspee

51、d.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

52、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 _

53、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 scavenging box 100.Be sure to make the engine turn by _ before starting and after stopping.A steering gearB turning gear C steering wheelD turni