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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 water8. with compressed air VC by using of sea waterD with chemical compound2. “ Stand by an engine ” means A“ prepare to stop the engine ”8 “ assemble an eng
2、ine on its bedplate ”C.make an engine ready for starting ” VD“ 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 Frame8. Bedplate VC CylinderD Liner4. are commonly used
3、 in mechanical-hydraulic governor to sense engine speeds.A Bulbs8 BulksC. Flyweights VD 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 VB Aspirate gauzerC CouplingD Blind
4、6. device is provided to prevent starting air from being admitted to the cylinderbefore the reversing is completed.A. An automatic VB A transmissionC A self-regulatingD An interlocking7. fuel oils lubricating oils require treatment before passing to the engine.A. Both/and VB Neither/norC Either/orD
5、Both/or8. is sometimes used for piston cooling since leaks into the crankcase would not causeproblems.A Diesel oilB Hydraulic oilC. Lube oil VD Mineral oil9. is the removal of exhaust gases by blowing in fresh air.A Gas exchangeB ChargingC. Scavenging VD 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 V11. may be the first possible cause which makes the engine to lose power or slow downwhen it is runn
7、ing.A. Hot bearing V8 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 VB 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 VB 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 steel D. Aluminum V15. should not undertake any task which will interfere with the supervision dutiesr
9、elating to the main machinery and associated equipment.A. The watch keeping personnel V8 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
10、 strokeV8 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 VB Higher/moreC Higher/littleD The higher/the less18. is not properly set thus causing either advanced
11、or retarded firing.A A piston8. A fuel injection pump VC 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 VD Connecting20. shows 1.2 meter and the specific gravity of the oil is 0.96A
12、ccording to the measuringscale, that makes 150 tons.A The piston rodB The push rodC. The sounding rod VD The connecting rod21. allows for expansion and water make up in the water cooling system.A A top tank8. A head tank VC A head valveD A drain tank22. at the end of the distribution pipe ensures th
13、at adequate pressure is maintainedby the pump.A A relief valve8. An alarm VC 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 V24. provide the water to the pistons.A Pneumatic pipesB Hydraulic p
14、ipesC. Telescopic pipes VD Operating gas pipes25. are fitted in the exhaust system and facilitate charge removal and scavenging ineach cylinder.A. Diffusers VB CompressorsC Steam boilersD Soot blowers26. are formed by abrasive particles entering the bearing and scoring the shaft.A. Grooves VB 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 V28. is a precaution which contributes to avoiding trouble under normal operatingconditions.A. Constant inspection V8 Keeping constant loadC Remaining constant temperatureD varying speed29. is a source of power by whi
