Friction, engine wear and oil consumption in a diesel engine are directly related to the （）.

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• The removal of （） from lubricating oil will reduce engine wear and possible breakdowns.

  A . contaminating water B . contaminated additives C . contaminated fuel D . contaminating impuritie

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• “Friction”和“Wear”分别是（）

  A . 摩擦和磨损； B . 磨损和摩擦

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• Excessive piston ring wear in a diesel engine will cause（）

  A . high lube oil viscosity B . increased lube oil consumption C . low lube oil temperatures D . high firing pressure

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• If you do not wear goggles and helmet，your chances of being（）will be greater.

  A . beaten B . damaged C . hurt D . stricke

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• The engine（）smoke and steam.

  A、gives in B、gives away C、gives off D、gives up

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• To absorb the wear resulting from impeller rotation and abrasives in the liquid, a centrifugal pump is usually fitted with （）.

  A . lantern rings B . bearings C . easing volutes D . wearing ring

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• Which of the following item is the cause to the damage of parts and excess wearing?（）

  A . overload B . the odds of the load C . the default of parts D . overload and the odds of the load

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• What will NOT increase friction of a liquid flowing in a pipe and cause a loss of suction head?（）.

  A . Bends in the piping B . Slowing the pumping rate C . Pipeline valves D . Backing rings for pipe weld

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• Personnel working with refrigeration systems, and subject to the exposure of refrigerants should wear （）.

  A . face shield B . a respirator C . rubber gloves D . an all purpose gas mask

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• Usually the Charterer has to redeliver the ship in the same good order（）when delivered，fair wear and tear excepted.

  A . in B . by C . on D . a

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• In a diesel engine, excessive cylinder liner wear will cause （） (1) increased blow-by (2) wear between the piston ring and groove

  A . (1) only is correct B . (2) only is correct C . both (1) and (2) are correct D . neither (1) or (2) axe correct

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• Any friction fit, tightness or adhesion of the part of any load being lifted should be broken by wedge or tapping and not by increasing the load on the applianceAccording to this sentence, （）

  A . the lifting appliance can always lift the freight within its rated load B . attention should be paid in order not to break the wedge when lifting cargo C . sometimes the lifting work needs other assistance other than the lifting appliance D . lifting work should be done with every part fit, tightness or adhesio

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• Why should you wear a self-contained breathing apparatus before entering the engine room after the fixed CO2 system has been discharged to combat a major fire?（）

  A . Because carbon dioxide dilutes the oxygen concentration in the atmosphere and may cause asphyxiation B . Because carbon dioxide breaks down in a fire into carbon monoxide which may cause blood poisoning in the person breathing this gas C . Because carbon dioxide is a colorless and odorless gas that becomes highly toxic in the presence of high temperatures and will quickly incapacitate a person exposed to this gas D . This action is unnecessary as carbon dioxide is not poisonous nor toxic but is a relatively harmless ga

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• On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）

  A . dial indicator B . outside caliper C . bridge gauge D . tram rod

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• Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to （）.

  A . react with insufficient speed droop B . fail to react to small speed changes C . have excessive sensitivity to small speed changes D . remain in the neutral positio

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• The pipe friction and the resistance will （） as a result of an increase in the amount of fluid flowing through the system.

  A . reduce B . rise C . raise D . fall

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• The most important factor that causes the wear of the engine parts is （）.

  A . excessive heat B . friction C . oxidation D . high pressure

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• The mechanical efficiency of an engine （） because losses occur in the form of friction.

  A . is always less than 100% B . is always more than 100% C . is always equal to 90% D . is always less than 90%

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• Why does she cut her hair short and almost only wears uniform?

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• You need to dress formally and wear any colors you like in order to gain more attention of the interviewers.

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• 原文:Such materials are characterized by good insulation and high resistance to wear. 译文:这些材料的特点是:绝缘性好。

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  A.dark hair B.a bow tie C.a box D.a shirt

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• 听力原文：Watches, which ore really small clocks, were first made during the sixteenth century. The earliest watches were made of heavy iron, and people wore them hanging from their belts. Little by little, watches were made smaller so that they could be carried more easily. The invention of the machinery for the mass production of these parts of clocks and watches was an important step in making clocks and watches available to the general public. In some watches, small pieces of precious stones, such as rubies or sapphires, are used at the points on which the wheels mm. Since these stones are very hard, they do not wear down very easily under the friction of the moving wheels. Thus a watch utilizing such stones will keep accurate time over a much longer period than other watches.

  Some modern watches can measure very small fractions of time. These watches ore useful in timing athletic events. When a button is pressed on these watches, a special second hand begins to move. This type of watch can also be used to count a patient's pulse. It would be difficult to imagine today's world without clocks and watches. (23) A．Iron. B．Copper. C．Gold. D．Lead.

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