轮机英语历届考试题42803

中华人民共和国海事局

2007年第1期海船船员适任证书全国统考试题(总第42期)

科目：轮机英语试卷代号：803

适用对象：无限、近洋航区3000KW及以上船舶大管轮

（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）

答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至68题，每题1分，第69题至76题，每题1.5分，第77题至78

题，每题10分。

一、单项选择题：

1.Diesel engine electric starting motors generally require heavier duty motors and operate at higher

voltages than comparable starting motors for gasoline engines due to ______.

A. higher speed required

B. flywheel effect

C. lower starting temperatures

D. higher compression pressures

2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is

commonly classed as a ______.

A. slow-speed diesel

B. medium-speed diesel

C. high-speed diesel

D. constant-speed diesel

3.Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel

engine?

A. Viscosity

B. Sulfur content

C. Pour point

D. Cetane number

4.______ allows for expansion and water make up in the water cooling system.

A. A top tank

B. A head tank

C. A head valve

D. A drain tank

5.Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the

______.

A. double bottom fuel oil tank temperature

B. heater supply steam flow

C. pressure of the fuel supplied to the burners

D. attemperator(保温装置) steam flow in the heater discharge circuit

6.High diesel engine cooling water temperatures can be caused by ______.

A. air in the cooling system

B. an overhauled water pump

C. correct amount of coolant

D. no air in the cooling system

7.In a diesel engine lube oil system, which of the following parts should be lubricated first?

A. Camshaft bearings

B. Main bearings

C. Piston crowns

D. Cylinder walls

8.Once a trunking fire is detected the engine should be slowed down, On no account ______.

A. the trunking should be opened up

B. should the trunking be opened up

C. the trunking should not be opened up

D. should the trunking not be opened up

9.Persistent knocking in one cylinder of an eight cylinder diesel engine would MOST likely be

caused by ______.

A. using fuel oil with low cetane number

B. a badly worn piston pin

C. a loose flywheel key

D. a loose bed plate bolt

10.Significant retardation of a diesel engine fuel injection timing will result in ______.

A. smoother engine operation

B. advanced fuel ignition

C. increased fuel economy

D. reduced engine power

11.Leaky exhaust valve will result in which of the following? I. high exhaust temperature; II. low

compression pressure; III. low firing pressure.

A. I and II

B. I only

C. II only

D. I,II and III

12.In ships where the engine room is designed as UMS, temperature sensors are fitted at critical

points within the scavenge spaces. Activation would cause automatic ______of the engine.

A. stop

B. start

C. speed up

D. slow down

13.During extremely cold weather, while starting an engine, it turns too slowly and fails to start. This

problem is most likely the result of ______.

A. high fuel oil viscosity

B. low fuel oil temperature

C. high lube oil viscosity

D. energized glow(发热) plugs

14.Pitted reduction gear teeth having a deep blue color with evidence of overheating have been

operated with ______.

A. excessive speed

B. improper warm-up

C. extreme misalignment

D. inadequate lubrication

15.The driving force of a propeller is transmitted to the hull through the______.

A. bevel(倾斜) gear teeth

B. helically cut gear teeth

C. sleeve bearings

D. thrust bearing

16.Vessel propellers are classified as being right hand or left hand. A right hand propeller turns

clockwise when viewed from ______.

A. the bow

B. the stern

C. the port side

D. the starboard side

17.Prolonged operation of a diesel engine with a closed cooling water system, at lower than normal

designed operating temperatures can ______.

A. increase power output

B. decrease lube oil viscosity

C. eliminate fuel knock

D. cause sulfuric acid formation

18.Which of the following modes of heat transfer does NOT require any physical contact between a

warmer and a cooler substance?

A. Radiation

B. Conduction

C. Natural convection

D. Contact directly

19.Moisture in the refrigerant may ______.

A. freeze on the expansion valve seat and reduce the flow of liquid refrigerant

B. emulsify the oil in the condenser

C. freeze in the king valve

D. clog the oil trap

20.Which of the following best describes "overcharge of refrigerant"?

A. too much refrigerant

B. too little refrigerant

C. refrigerant is ran out

D. running is over

21.An increase in the heat load to a refrigeration system will cause ______.

A. the suction pressure to decrease

B. the suction temperature to increase

C. increased ice formation on the evaporator coil

D. excessive short cycling of the compressor

22.If the refrigeration compressor crankcase is sweating, the cause may be due to ______.

A. a shortage of refrigerant

B. the compressor running continuously

C. liquid refrigerant returning to the compressor

D. the compressor short cycling on the high pressure cutout

23.Low compressor head pressure in a refrigeration system can be caused by ______.

A. insufficient condenser cooling water

B. excessive condenser cooling water

C. air in the refrigeration system

D. excessive refrigerant in the system

24.A centrifuge arranged to separate impurities and small amounts of water from oil is known as

______.

A. an oily water separator

B. a purifier

C. a centrifugal compressor

D. a clarifier

25.Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not

properly primed prior to admitting oil flow to the bowl?

A. Contamination of the lube oil by emulsification(乳化) will result.

B. The lube oil will not be subjected to the proper centrifugal force.

C. The lube oil will overheat and flash.

D. Oil will discharge from the heavy phase discharge port and be wasted.

26.What type of valve is used to direct the flow of hydraulic fluid?

A. relief valve

B. direction control valve

C. stop valve

D. pressure control valve

27.Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.

A. permanent loss of pump suction

B. worn shaft seals

C. high level in the oil sump

D. low motor RPM

28.When there is no movement of the rams on an electro-hydraulic steering gear, the tilting box of

the running pump is ______.

A. set for maximum torque

B. on the purge and vent stroke

C. in the neutral position

D. rotating backwards

29.Air trapped in the hydraulic fluid of a steering system should be indicated by ______.

A. the pump overspeeding

B. an improper rudder response

C. bubbles in the sight glass

D. ram relief valves lifting

30.Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and

______.

A. fluid friction

B. fluid turbulence

C. component misalignment

D. pressure surges

31.Which of the following can be used in hydraulic transmission system?

A. Hydraulic oil

B. Animal oil

C. Light oil

D. Fuel oil

32.Current changing in direction and rising and falling in value is______.

A. A.C.

B. D.

C. C. generator

D. fresh water generator

33.A DC generator is used to supply direct current in order to maintain an AC generator field and is

known as a/an ______.

A. rotor

B. stator

C. exciter

D. armature

34.You are attempting to parallel two AC generators, and the synchroscope pointer is revolving in the

fast direction. This indicates that the frequency of the incoming machine is______.

A. higher than the bus frequency

B. lower than the bus frequency

C. the same as the bus frequency but out of phase with it

D. the same as the bus frequency and the circuit breaker may be closed at any pointer position 35.Which of the following should be the first step in removing a generator from parallel operation?

A. Trip the generator off the switchboard.

B. Turn off all electrical equipment.

C.Remove the load from the …off going? generator.

D. Increase the cycles of the generator staying on the line.

36.______is provided to alternators, in the event of prime mover failure to ensure that the alternator

does not act as a motor.

A. Reverse current protection

B. Reverse power protection

C. Synchronising device

D. Frequency meter

37.The part of the shipboard electrical system used to control the distribution of power to the branch

circuits, is the ______.

A. bridge control panel

B. disconnect links

C. governor relay box

D. main switchboard

38.______control system is one in which the control action is independent of the output.

A. Feed back

B. Negative feed back

C. Close loop

D. Open loop

39.A device which prints out a permanent record of the plant operating conditions is known as the

______.

A. ana(名言集) logger

B. bell logger

C. alarm logger

D. data logger

40.Which of the listed devices would be installed at a control system air pressure reducing station?

A. Moisture separator

B. Vacuum breaker

C. Lubricator

D. Non-return valve

41.The two most common gases used in pneumatic systems are ______.

A. compressed air and nitrogen

B. helium and nitrogen

C. oxygen and hydrogen

D. oxygen and acetylene

42.UMS stands for ______.

A. ultra much space

B. universal medium system

C. unit machined space

D. unattended machinery space

43.Before putting on the starting air, the reversing and control gear should be _____.

A. operated

B. stopped

C. checked

D. removed

44.“Movement of engine no longer required.” means “______”.

A. Stop Engine

B. No Engine Revolutions

C. Stand-by Engine

D. Finished With Engine

45.A tank which has been sealed for a long period of time can be dangerous because ______.

A. steel surfaces consume oxygen by rusting

B. sealed tanks usually form a vacuum

C. moisture condenses in the tank, displacing the oxygen

D. most tank coatings give off poisonous vapors in the presence of moisture

46.A fire in a pile of dunnage would be classified as a ______.

A. class A

B. class B

C. class C

D. class D

47.Fire dampers prevent the fire spreading through the process of ______.

A. convection

B. conduction

C. radiation

D. direct contact

48.Which of the fire extinguishers listed is to be weighed annually and sent ashore for recharging if

the weight loss exceeds 10% of the weight of a full charge?

A. Foam

B. Soda acid

C. Dry chemical

D. Carbon dioxide

49.As soon as you hear the fire and emergency signal, you should ensure that the ______.

A. ring buoys are thrown overboard

B. engines are stopped

C. fire pumps are started

D. life preservers have been issued to everyone

50.If there has been a fire in a closed unventilated compartment it may be unsafe to enter because of

______.

A. unburned carbon particles

B. excess nitrogen

C. a lack of oxygen

D. excess hydrogen

51.Which lubricating oil additive is used in diesel engines to reduce the tendency for sludge and

varnish to form on the engine parts?

A. Flash point improvers

B. Pour point improvers

C. Inhibitors

D. Foam suppressors

52.Why is it necessary to have routine testing of the cooling water?

A. To ensure that the proper residuals of treatment chemicals, as specified, are maintained all

time.

B. To trace leakage in the cooling water system.

C. It is not necessary.

D. To detect the presence of contaminants in the water that may be injurious to the cooling

system.

53.Before welding is permitted on a fuel tank, it must be certified or declared ______.

A. safe for personnel

B. safe for hot work

C. not safe for personnel

D. not safe for hot work

54.“AMIDSHIPS” refers to______.

A. Back of the vessel

B. The middle portion of a ship

C. A backward movement of a vessel

D. Across the ship, at right angles to the fore-and-aft centerline

55.The depth of the ship below the waterline measured vertically to the lowest part of the hull is

called_____.

A. trim

B. lean

C. draft

D. tonnage

56.The additional mark______ in the Classification Certificate for Machinery represents that

personnel are watching at engine assembly control station and monitoring all machinery and

electronic devices.

A. BRC

B. MCC

C. AUT-0

D. AUT-1

57.Which of the following should be recorded in Oil Record Book Part I(machinery space operation)?

Ⅰ、non automatic discharge overboard of machinery space bilge waterⅡ、automatic discharge overboard of machinery space bilge water

A.Ⅰ

B.Ⅱ

C.Ⅰ and Ⅱ

D. neither Ⅰ nor Ⅱ

58.The approval period for a shipboard oil pollution emergency plan expires after______.

A. one year

B. two years

C. four years

D. five years

59.Enhanced procedures concerning the exercise of ______have been developed to allow

intervention(干涉) the case of deficiencies deemed(认为)pose a danger to persons, property or the environment.

A. port state control

B. flag state control

C. fire and boat drill

D. safety inspection

60.“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of

a______.

A. substandard ship

B. standard ship

C. over-standard ship

D. reference ship

61.STCW78/95 Convention describes that ______are laid down for the certification of engineer

officers in charge of a watch in a traditionally manned engine room, or the designated engineer in

a periodically unmanned engine room.

A. available minimum requirements

B. available maximum requirements

C. mandatory minimum requirements

D. mandatory maximum requirements 62.When the machinery spaces are in the periodic unmanned condition, ______shall be immediately

available and on call to attend the machinery space.

A. the chief engineer

B. the designated engineer from shipyard

C. the designated duty engineer in charge of the engineering watch

D. the designated surveyor from classification society

63.The officer in charge of the engineering watch shall ensure that at all times bridge orders relating

to changes in ______of operation are immediately implemented.

A. ahead or astern

B. fore or aft

C. up or down

D. speed or direction

64.When off loading garbage to another ship, your records must identify that ship by name and

______.

A. home port

B. operator's name of record

C. official number

D. master's name

65.Bilges may be pumped______.

A. on the outgoing tide

B. overboard after dark

C. overboard through an oily water separator

D. anytime in an emergency, i.e. main engine lube oil failure

66.The main objective of the SOLAS Convention is to specify ______for the construction, equipment

and operation of ships, compatible their safety.

A. at most references

B. at least references

C. maximum standards

D. minimum standards

67.The Company should ensure that ______documents are promptly removed.

A. absolute

B. updated

C. outdated

D. new

68.Each ship shall carry on board a ship security plan approved by______.

A. the chief engineer officer

B. the master of the ship

C. the manager of the company

D. the Administration

二、关联题（关联题题干下有4个小题，每小题4个选项）

第一组:

Port State Control (PSC) is the inspection of foreign ships in national ports for the purpose of verifying that the condition of the ship and its equipment comply with the requirements of international conventions and that the ship is manned and operated in compliance with applicable international laws. The primary responsibility for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions rests with the flag State and if all flag States performed their duties satisfactorily there would be no need for port State control. Unfortunately this is not the case as evidenced by the many marine accidents around the world - hence the need for additional control.

The authority for exercising PSC is the national law based on relevant conventions. It is therefore necessary for a port State to be Party to those conventions and to have promulgated the necessary legislation before exercising PSC. In accordance with the provisions of the applicable conventions, Parties may conduct inspections of foreign ships in their ports through Port State Control Officers (PSCOs).

69.The purpose of PSC is ______.

① to check and inspect foreign ships

② to verify the condition of a ship in compliance with requirements of international conventions;

③ to make sure that the ship is manned and operated well;

④ to detain ships

A.①②

B.②③

C.①③

D.①②③④

70.Who will be responsible for ensuring that a ship maintains a standard at least equivalent to that

specified in international conventions?

A. PSCOs

B. Ship owners

C. Flag states

D. Port states

71.Before exercising PSC, a port state should______.

A. become a contracting Party and promulgate regulations for implementing PSC

B. inform ship owners

C. establish procedures

D. inform shipping companies

72.PSC inspection is implemented by______ through______.

A. flag states/PSCOs

B. flag states/ship owners

C. port states/PSCOs

D. port states/ship owners

第二组:

Scavenge port inspection provides useful information about the condition of cylinders, pistons and rings, at low expense. The inspection consists of visually examining the piston, the rings and the lower part of the cylinder liner, directly through the scavenge air ports. To reduce the risk of scavenge box fire, remove any oil sludge and carbon deposits in the scavenge air box and receiver in connection with the inspection.

The port inspection should be carried out at the first stop after a long voyage, e.g. by anchoring if possible, to obtain the most reliable result with regard to the effectiveness and sufficiency of the cylinder lubrication and the combustion cycle (complete or incomplete).

A misleading result may be obtained if the port inspection is carried out after arrival at harbor, since manoeuvring to the quay and low-load running, e.g. river or canal passage, requires increased cylinder oil dosage, i.e. the cylinders are excessively lubricated. Further, during low load, the combustion cycle might not be as effective and complete as expected, due to the actual fuel oil qualities and service (running) condition of the fuel injection equipment. It is highly recommended to take this information into consideration.

73.The components of an engine involved in normal scavenge port inspection comprise .

① the piston ② piston rings ③ the lower part of the cylinder liner

A.①②

B. ③

C.②

D.①②③

74.If the scavenge box had too much oil sludge and carbon deposits, what would occur?

A. excessive cylinder oil consumption

B. the scavenge box fire

C. the crankcase explosion

D. excessive wear of the cylinder liner

75.In order to obtain the most reliable result with regard to the effectiveness and sufficiency of the

cylinder lubrication and the combustion cycle, when should the scavenge port inspection be

carried out?

A. at the first stop after a long voyage, e.g. by anchoring if possible

B. at the first stop after arrival at harbor

C. at the first stop after low load running

D. at the first stop after passing river or canal passage 76.What is the reason that the scavenge port inspection shouldn?t be carried out after arrival at harbor?

① the main engine requires increased cylinder oil dosage during manoeuvring

② the combustion cycle might be ineffective and incomplete under low load operation

A.①

B.②

C.①②

D. either①or②

三、中译英（共2题，请将答案写在答题纸上）

77.航行期间，主机1号气缸发出敲击声，经确认敲击声来自气缸内部。停止主机，更换了1

号气缸的油头之后，进行了排气阀和燃油泵的检查和调整,重新起动主机恢复航行，但发生了同样的敲击声。

78.主机废气涡轮增压器需解体、清洁及检查，喷嘴环、压气机和涡轮机端轴承用船上备件换

新，所有其它部件发现不合格也全部换新，对转子做动平衡试验，装复时记录所有装配间隙。

三管轮轮机英语大证考试真题41期

中华人民共和国海事局 2006年第3期海船船员适任证书全国统考试题(总第41期) 科目：轮机英语试卷代号：805 适用对象：无限、近洋航区3000KW及以上船舶二/三管轮 （本试卷卷面总分100分，及格分为70分，考试时间为100分钟） 答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。第1题至74题，每题1分，第75题至78题，每题1.5分,第79题至80题, 每题10分。 一、单项选择题 1. A diesel engine is similar to a gasoline engine except that the former has no ______. A. cross-head B. spark plug C. connecting rod D. cylinder 2. A diesel engine which is rated for normal operation at a crankshaft speed of 800 RPM, is commonly classed as a ______. A. slow-speed diesel B. medium-speed diesel C. high-speed diesel D. constant-speed diesel 3.Which of the diesel engine components listed increases air density and helps to improve engine operating efficiency? A. Impeller B. Compressor C. After-cooler D. Exhaust diffuser 4.For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four- stroke/cycle diesel engine because ______. A. it has a longer power stroke B. more air gets into the cylinder each stroke C. it develops twice as many power strokes at the same speed D. higher combustion pressure is developed 5.The intake valves in a diesel engine are reseated by ______. A. cam followers B. push rods C. combustion gases D. valve springs 6.According to the way the energy of the exhaust gases is utilized, pressure-charging can be divided into two main systems, namely, the constant-pressure system and ______. A. the pulse-phase system B. the pulse Doppler system C. the pulse system D. the pulse interval system 7.An over-speed safety device is usually fitted to a generator engine for______in the event of over- speed. A. cutting power off the engine B. increasing the fuel pump setting C. braking the crankshaft D. stabilizing the ship speed 8.What preventative maintenance should be done frequently to diesel engine starting air receivers? A. Drain the accumulated moisture. B. Test the relief valves. C. Watch the temperature to prevent fluctuations in pressure. D. Clean the interior to remove oil and foreign matter. 9.Immediately after any diesel engine is started, the engineer should check the ______. A. crankcase pressure B. lube oil pressure C. seawater pressure D. exhaust temperature 10. A controllable pitch propeller on a diesel driven vessel eliminates the need for ______. A. friction clutches B. disconnect clutches C. reversing gears D. reduction gears 11.In motor ship, ______is often used to recover some of the heat carried in the exhaust gases from the main engine. A. an diesel oil heater B. a waste heat boiler C. a fresh water generator D. a donkey boiler 12.An exhaust gas bypass is installed on a waste heat boiler in order to ______. A. bypass exhaust gas at high loads to prevent excessive back pressure B. bypass a portion of the exhaust gas at peak loads for better efficiency C. recycle exhaust gas to the turbocharger D. minimize moisture condensation in the boiler gas passages at low loads 13.Prior to lighting off a cold automatically fired auxiliary boiler, you should ______. A. check and regulate the water level B. close the air cock once fires are lit C. blow down the gage glass D. assure protective steam flow 14.Flame failure in an automatically fired auxiliary boiler can mostly result from a/an ______. A. incorrect electrode setting B. incorrect nozzle position C. clogged fuel nozzle D. broken high tension lead 15.Waterside scale in a fire-tube boiler may cause ______. A. increased heat transfer B. fireside erosion C. high steam demand D. overheated tubes 16.Which of the following will be the advantage of a centrifugal pump as compared with a reciprocating pump? I. Its discharge is continuous; II. It has no internal valves; III. Upon accidental closing of discharge valve, excessive pressure will not build up A. I, II B. II, III C. I, II, III D. II only 17.Why are removable sleeves installed on centrifugal pump shafts? A. They make it easier to replace the pump shaft packing. B. They can be economically replaced as they wear out. C. They can be removed when it is necessary to lighten the weight of the pump. D. They increase the strength of the shaft. 18.If one of the bilge system manifold valves does not properly seat, the ______. A. bilge well connected to that valve, plus the second bilge well being pumped will be completely emptied B. bilge system will lose vacuum and prevent the other bilges from being pumped out C. bilge well aft connected to that valve will siphon(虹吸) its contents to the forward bilge wells D. discharge pressure will be too high. 19.Which of the listed statements is correct concerning the starting of centrifugal pumps? A. They should always be started with the discharge valve closed. B. They should always be started with the discharge valve opened. C. A priming pump is always required to flood the impeller suction. D. They should always be started with the sealing line valves closed. 20.The simplest method to use for determining if a centrifugal pump is operating as designed, is to ______. A. closely observe the pump discharge temperature B. close off the discharge valve, and watch for a rise in pressure C. momentarily close off the suction valve, and watch for a rise in pressure D. use a clamp on ammeter and compare the readings to past records

第47期轮机英语

47期轮机英语考试题目 一单项选择题 A1.The___ engine is used for alternators and some times for main propulsion provide a propeller of between 90 to 120 rpm. A.four-stroke B.two-stroke. C.slow speed D.reversible B2.The abbreviation”MIP”stands for____, A.middle indicating pressure B.mean indicated pressure C.mean pitch D.middle indicated power D3.The cetane number of a diesel fuel oil indicates its____. A.viscosity B.acid content C.heating value D.ignition quality C4.In a two-stroke engine the camshaft rotates at___the enging rotational speed. A.half B.twice C.the same speed as D.four times D5.A diesel enging is similar to a gasoline engine except that the former has no ____. A.cross-head B.cylinder C.connecting rod D.spark plug C6.It is easier to replace a dry cylinder liner than a wet one because____. A.of the thin wall thickedss B.honing makes it easier to maintain the desired oil film C.water seals are not required D.it fits more loosely due to a decrease in heat transfer through the composite wall D7.A main bearing consists of two shells which are secured by means of studs and____. A.tie rods B.though bolts C.lead wires D.bearing caps C8.However fast or slow the combustion rate,it is still a____between carbon,hydrogen,sulph and oxygen that releases heat. A.physical deformation B.state exchange C.chemical reaction D.coalescence A9.During the fuel injection period,fuel pressure must exceed cylinder gas pressure to____. A.ensure penetration and distribution of the fuel in the combustion chamber B.ensure the needle valves is flushed clean duringeach injection C.prevent combustion gas blowback into the open needle valve Dprevent reflected pressure waves when the neddle valve close. B10.In a diesel engine lube oil system ,which of the following parts should be lubricated first? A.Camshaft bearings B.Main bearings C.Piston crowns D.Cylinder walls B11.In a diesel engine closed freshwater cooling system,the amount of coolant flowing through the heat exchanger is controlled by the _____, A.suction pressure regulator B.thermostatic bypass valve C.sea water temperature D.water level in the expansion tank

第32期轮机英语考试题

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