机工英语题库

1、机工英语单选题() 1.( ) is used to produce electricity. a.a generator b.a fresh water generator c.a compressor 参考答案：a2.the diesel engine is a type of ( ). a.external combustion engine b.steam engine c.internal combustion engine 参考答案：c3.four strokes consist of suction, compression,( ) and exhaust stroke. a.c

2、ycle b.expansion c.scavenging 参考答案：b 4.the electric system is ( ). a.50 amperes b.380 volts c.50 hertz and 380 volt 参考答案：c5.please pass me that ( ). a.screw driver b.oil separator c.oily water separator 参考答案：a6.a smoky exhaust shows that the engine is ( ). a.running slowly b.running normally c.over-

3、load 参考答案：c7.how long will it take to do the additional items? a.we can complete it on time b.three working days c.dont worry about it 参考答案：b8.the hydraulic governor is used to control the ships ( ). a.speed b.course c.weight 参考答案：a 9.the steering gear is used to control the ships ( ). a.speed b.cou

4、rse c.load 参考答案：b 10.we can control the engine ( ) by regulating the quantity of oil. a.course b.speed c.load 参考答案：b 11.one of the main functions of lube.oil is to remove ( ) from oil cooled pistons. a.power b.friction c.heat 参考答案：c 12.( ) can be used to check the air leakage from the pipe. a.the lu

5、be oil b.the fuel oil c.the soap water 参考答案：c 13.the piping system should be blown with ( ) after being welded. a.starting air b.scavenging air c.compressed air 参考答案：c 14.the fresh air is compressed then stored in ( ). a.the scavenging air box b.the starting air receiver c.the tool box 参考答案：b15.wate

6、r and foreign matters are separated ( ) in the oil separator. a.from bilge water b.from fuel oil c.from ballast water 参考答案：b 16.in four-stroke diesel engine, the cycle of events is completed in ( ) of crankshaft. a.one revolution b.two revolutions c.four revolutions 参考答案：b 17.the engine is started w

7、ith compressed air supplied from ( ). a.air bottles b.the scavenging air receiver c.the crankcase 参考答案：a18.the working stroke is also called ( ) stroke. a.compression b.expansion c.exhaust 参考答案：b19.( ) is used to lift cargo. a.the deck crane b.the windlass c.the capstan 参考答案：a 20.( ) is a machine by

8、 which mechanical energy is transformed into electrical energy. a.an electric motor b.an alternator c.a fresh water generator 参考答案：b21.the most efficient scavenging system is ( ). a.uniflow b.cross flow c.loop 参考答案：a22.head tank should be used to remove ( ) from cooling water. a.chemicals b.gas c.sl

9、udge 参考答案：b 23.the gear pump belongs to the ( ) pump. a.positive displacement b.reciprocating c.centrifugal 参考答案：a24.the moving parts include connecting rods, crankshafts and ( ). a.pistons b.cylinders c.bearings 参考答案：a 25.to remove water which has gathered in machinery spaces, we need ( ). a.bilge

10、pumps b.fresh water pumps c.ballast pumps 参考答案：a 26.the main fixed parts of the marine diesel engine are the main bearings, the bedplate, the cylinder and ( ) a.the piston rod b.the connecting rod c.the frame 参考答案：c 27.the cylinder head, ( ) and piston form the combustion chamber. a.frame b.cylinder

11、 wall c.cylinder jacket 参考答案：b 28.the slow-speed desel engines can be connected directly to the propeller without ( ). a.shafts b.bearings c.reduction gear box 参考答案：c 29.when pressure of lube. oil has reduced lower than normal, the engine stops (). a.automatically b.automatic c.automation 参考答案：a30.a

12、uxiliary machinery covers the steering gear, the turning gear, deck cranes,( ) and others. a.main bearings b.main shafts c.cargo winches 参考答案：c 31.cargo-handling machinery includes ( ). a.mooring winches b.windlass c.cargo oil pumps 参考答案：c32.motormen stand a watch ( ). a.in the engine room b.on deck

13、 c.on bridge 参考答案：a33.electrical power is expressed in ( ). a.ohms b.volts c.wilts 参考答案：c 34.shore power must be ( ) during dock repair. a.connected b.cut off c.switched off 参考答案：a 35.the unit of electric voltage is the ( ). a.ohm b.volt c.watt 参考答案：b 36.the unit of electric current is the ( ). a.am

14、pere b.watt c.wolt 参考答案：a 37.the unit of electrical resistance is the ( ). a.ohm b.volt c.watt 参考答案：a 38.the starting current of an a.c.motor is ( ) rated current. a.the same as b.much larger than c.equal 参考答案：b 39.current changing in direction and rising and falling in value is ( ). a.a.c. b.d.c. c

15、.w.c. 参考答案：a40.a pressure gauge is used to measure ( ). a.pressure b.temperature c.force 参考答案：a 41.a thermometer is used to measure ( ). a.pressure b.temperature c.force 参考答案：b42.we use a manometer to measure ( ). a.temperature b.viscosity c.pressure 参考答案：c 43.the emergency generator or emergency ba

16、ttery is connected to ( ). a.section boards b.emergency switchboards c.distribution boards 参考答案：b44.with ums,when the engine room is unwatched, ( ) will control the main engine. a.the bridge officer on watch b.the chief engineer c.the duty motorman参考答案：a45.bilges may be pumped ( ). a.on the outgoing

17、 tide b.overboard after dark c.overboard through an oil water separator 参考答案：c 46.a fire in an electrical generator is considered to be ( ) . a.class a b.class b c.class c 参考答案：c 47.( ) of fire would most likely occur in the engine room of a vessel? a.class a and b b.class b and c c.class c and d 参考

18、答案：b 48.fires involving combustible metals are classified as ( ). a.class a and b b.class c fires c.class d fires 参考答案：c49.burning diesel oil should be considered as burning ( ). a.class a b.class b c.class c 参考答案：b50.a class d fire would be considered as burning ( ). a.oil b.electrical equipment c.

19、magnesium 参考答案：c 51.a fire in a pile of canvas would be classified as ( ). a.class a b.class b c.class c 参考答案：a 52.the main ( ) parts of the marine diesel engine are the bedplate, the main bearing and the cylinder. a.fixed b.moving c.spare 参考答案：a 53.in two-stroke diesel engine, the cycle of events i

20、s completed in ( ) of crankshaft. a.one revolution b.two revolutions c.four revolutions 参考答案：a 54.in four-stroke diesel engine, the cycle of events is completed in ( ) of crankshaft. a.one revolution b.two revolutions c.four revolutions 参考答案：b 55.before taking out the ( ),give the engine at least on

21、e complete turn. a.steering gear b.turning gear c.timing gear 参考答案：b56.pass me a ( ) , please. a.spanner b.main engine c.fresh water generator 参考答案：a 57.the inner part of the cylinder is called ( ) . a.cylinder jacket b.cylinder liner c.cylinder cover 参考答案：b58.at sea, we usually use( ) to provide ho

22、t water. a.a heater b.an exhaust gas boiler c.an engine 参考答案：b59.if the engine does not fire when the starting lever is pulled , the possible cause for this is that ( ) . a.the exhaust valves dont open b. the safety valves dont work c.the starting valves dont open 参考答案：c60.a common ( ) with the fuel

23、 pump plungers is oil leakage. a.use b.trouble c.cause 参考答案：b 61.( )_ is the removal of exhaust gases by blowing in fresh air. a.gas exchange b. charging c.scavenging 参考答案：c 62.the piston moves up in the ( )and compresses the air. a. ring b.cylinder c.cam 参考答案：b63.the injection decides the output an

24、d therefore, the ( ) of the engine. a.speed b.size c.power 参考答案：c 64.the engine is started with( ) supplied from air receivers. a.pressure oil b.pressure water c.compressed air 参考答案：c 65.dirty oil must ( ) before being used again a.wash b.be mixed c.be purified 参考答案：c 66.following the working stroke

25、 , the ( ) is forced out of the cylinder. a.waste b.fresh air c.water 参考答案：a67.the lube oil can build up a thin ( ) on metal surfaces. a.film b.block c.release 参考答案：a68.what is used for ball bearings? a.grease b.fuel oil c.cylinder oil 参考答案：a69.after “ ( )” is given, the air system is shut down, the

26、 turning gear put in, all drains and indicator cocks opened. a.emergency full b.finished with engine c.stand by engine 参考答案：b 70.the outer part of the cylinder is called ( ). a.cylinder liner b.cylinder cover c.cylinder jacket 参考答案：c71.our ship hasnt been to shipyard for a long time, the fouling on

27、the ships hull greatly increases her ( ). a.resistance b.weight c.speed 参考答案：a 72.the ( )_ of the liferaft is sufficient for all of you. a.speed b.capacity c.capstan 参考答案：b 73.this operation between two fuel injections is called a ( ). a.turning cycle b.working cycle c.working hour 参考答案：b 74.the oil

28、 ( ) in the discharging water from oil water separator exceeds 15 ppm without alarm. a.filter b.hole c.content 参考答案：c75.sealing in pump shaft is achieved by means of the ( ). a.gasket b.packing c.o-ring 参考答案：b 76.before starting, the cylinders and pistons must be warmed up ( ). a.quickly b.usual c.g

29、radually 参考答案：c 77.the gear pump is the ( ) pump. a.displacement b.reciprocating c.centrifugal 参考答案：a 78.before operating the new equipment, everyone must read the ( ) carefully. a.instruction book b.hand book c.log book 参考答案：a 79.they cut off electricity and make the machines ( ). a.start b.stop c.

30、run 参考答案：b 80.when you are working in machinery spaces, you should wear( )in order to protect your body. a.a safety helmet b.well fitting clothes c.eyeglasses 参考答案：b81.shafts are needed ( ) the power of the engines to the propeller. a.to supply b.to transmit c.to provide 参考答案：b82.the space between c

31、ylinder liner and jacket is called ( ). a.the cooling space b.the cooler c.the cooling water 参考答案：a83.the cylinder head, cylinder liner and ( ) form the combustion chamber. a.frame b.crankcase c. piston 参考答案：c 84.what is the specification of the fuel oil? a.100kg b. 110 cst c.180 ft 参考答案：b 85.please

32、 fill diesel oil first, then ( ). a. heavy oil b.fresh water c.sea water 参考答案：a86.( )_ should be defrosted. a.the expansion valve b.the safety valve c.the fuel valve 参考答案：a87.the injection pumps are operated by means of ( ). a. chains b.fly-wheel c.cams 参考答案：c88.we must use ( ) to change sea water i

33、nto fresh water. a.fresh water pump b.sea water pump c.fresh water generator 参考答案：c 89.we use ( ) for the main engine. a.fuel b.gas oil c.petrol 参考答案：a90.we could hardly find a ( )valve to replace the old one . a.spare b.new c.special 参考答案：a 91.they use the ( ) to handle the cargo. a.winch b.windlas

34、s c.capstan 参考答案：a92.the brake horsepower is expressed in ( ). a.kilovolts b.kiloamperes c.kilowatts 参考答案：c93.which of the units listed is used to combust waste in the engine room? a.boiler b.incinerator c.generator 参考答案：b 94.during the watch, they always get in touch with the ( ) on the bridge and

35、answer their signals. a.engineers b.officers c.motormen 参考答案：b95.every hour, they have to record the condition of the pressure for explosion and the engine movement in the ( ). a.instruction book b.hand book c.log book 参考答案：c96.could you tell me the daily consumption of lube oil? a.5 tons per day b.

36、three days c.one time a day 参考答案：a97.how many power strokes per crankshaft revolution are there in an eight-cylinder, two-stroke diesel engine? a.two b.four c.eight 参考答案：c98.shaft sealing in a centrifugal pump can be achieved by ( ) a.the mechanical seal b.packed stuffing box c.either a or b 参考答案：c9

37、9.which of the following pumps belongs to centrifugal pump? a.piston pump b.screw pump c.diffuser pump 参考答案：c 100.which of the following pumps are self-priming, and can deal with liquid from a level below the pump? a.vane b.screw c.a and b 参考答案：c101.the internal part of the boiler, if found ( ),has

38、to be chemically washed by yard a.deformed b.cracked c.scaled 参考答案：c102.the tube in a boiler should be blinded if found ( ) a.scaled b.informed c.leaky 参考答案：c 103.in a ( ) boiler the water flows through the inside of the tubes while the hot gases pass round the outside a.water-tube b.fire-tube c.exh

39、aust gas 参考答案：a104.in a ( ) boiler the hot gases from the furnace pass through the tubes while the water is on the outside a.water-tube b.fire-tube c.exhaust gas 参考答案：b 105.which of the following may hardness of the boiler water cause? a.scale formation b.corrosion c.a and b 参考答案：c106.oily water sep

40、arators are used to ensure that ships dont discharge oil when pumping out ( ) a.ballast water b.boiler water c.bilge water 参考答案：c 107.( ) are used for cargo handling a.cranes b.windlasses c.capstans 参考答案：a108.( ) are used to handle anchors and chains a.cargo winches b.cargo hatches c.windlasses 参考答案

41、：c 109.the designed ( ) is 20 tons per day, but the fresh water generator can only distil 15 tons at present a.weight b.power c.capacity 参考答案：c 110.which of the following should be recorded in oil record book part ? a.non automatic discharge overboard of machinery space bilge water b.automatic disch

42、arge overboard of machinery space bilge water c.a and b 参考答案：c 111.oil record book part shall be provide to ( ) a.every oil tanker b.every ship of 150 tons gross tonnage and above c.every ship of 400 tons gross tonnage and above 参考答案：c 112.which of the following operations need to be entered on the

43、oil record book part ? a.routine discharge at sea of bilge water containing oil from the machinery spaces through strainers b.bunkering of fuel oil c.both a and b 参考答案：c 113.the exhaust boiler are used to recover some of ( ) carried in the exhaust gas from the main engine a.water b.oil c.heat 参考答案：c

44、114.( ) are mounted in pairs to protect the boiler against overpressure. a.the fuel valves b.the exhaust valves c.the safety valves 参考答案：c115.we use ( ) to distill fresh water from sea water a.sea water pump b.fresh water pump c.fresh water generator 参考答案：c 116.a donkey boiler is also called ( ) a.a

45、 main boiler b.an auxiliary boiler c.an exhaust gas boiler 参考答案：b117.the operation of paralleling two alternators requires the voltages to be ( ) and also in phase a.zero b.different c.equal 参考答案：c 118.the operation of paralleling two alternators requires( ) to be equal and also in phase a.the curre

46、nts b.the voltages c.the resistances 参考答案：b119.in a three-phase circuit, the phase voltages are ( ) a.120 apart b.160 apart c.180 apart 参考答案：a 120.current flowing in only one direction is called ( ) a.alternating current b.direct current c.sinusoidal current 参考答案：b 121.if a small electric motor is i

47、mmersed in salt water, it should be ( ) a.washed in fesh water b.dried in an oven c.a and b 参考答案：c 122.which of the following materials is a good insulator? a.copper b.iron c.rubber 参考答案：c123.each completed page of the oil record book must be signed by the ( ) a.engineer on duty b.chief engineer c.m

48、aster 参考答案：c124.the four basic components of a fire are chain reaction,heat,fuel and ( ) a.carbon dioxide b.oxygen c.carbon monoxide 参考答案：b 125.the three basic elements necessary for any fire are ( ) a.heat, gas and flames b.fuel, heat and oxygen c.heat, nitrogen and fuel 参考答案：b126.engines for lifeb

49、oats are required to have sufficient fuel to operate for how many hours?( ) a.12 hours b.18 hours c.24 hours 参考答案：c 127.an oxygen indicator will detect ( ) a.the amount of oxygen in a space b.the presence of harmful amounts of carbon monoxide c.concentration of explosive gas 参考答案：a 128.when fighting

50、 an electrical fire, you should first ( ) a.stop ventilation to the area b.stop the vessel c.secure electricity to the circuit 参考答案：c129.at the earliest indication of fire aboard your vessel, you must first ( ) a.locate the fire b.fight the fire c.sound the alarm 参考答案：c 130.the order( ) means maximu

51、m maneuvering engine revolution for ahead propulsion a.full ahead b.half ahead c.full astern 参考答案：a 131.movement of engine no longer required”. means () a.stop engine b.stand-by engine c.finished with engine 参考答案：c132.if you must enter a room to combat the fire, keep an escape path ( ) a.open b.clos

52、e c.opens 参考答案：a133.( ) near separator! a.not smoking b.no smoking c.no smoke 参考答案：b 134.crankcase doors should not be opened ( ) the engine has cooled down. a.after b.when c.until 参考答案：c135.( ) or use naked lights when inspecting crankcase a.no smoking b.dont smoke c.dont smoking 参考答案：b136.a reduction in load on a diesel engine results in ( ) of speed of the crankshaft a.a reduction b.an increase c.a downwards 参考答案：b137.as a heat engine, ( ) energy is the source of power by which a diesel e