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Crank chamber（=crank case）oils must be able to remove heat from a bearing and to do so the ____should be high enough at operating temperatures to assist（帮助，协助，assistant:助手）film（油膜）maintenance.

____are large, especially tall , heavy and operate on the two-stroke cycle.

During the period of the preparations for ME（main engine ）stand-by , pump up the air reservoirs(空气瓶)to their ____pressure and drain the air reservoirs and air system.

____is taken to check power and pressure in cylinders.

Jacket cooling water systems forms a/an ____circuit（回路，电路，水路）. vs: current:电流

Accurate ____ between bedplate and cylinder block is essential to effective stress transmission and engine operation.

In a diesel engine cooling water system, a pH of 6.0 indicates a/an____.

If a crankcase explosion（曲轴箱爆炸）occurs in a diesel engine, which of the listed ____actions should be taken?

What is the harmful effect of sulfur（硫）in a fuel?

The various cooling liquids which circulate M/E are themselves cooled by ____.

Safe working conditions inside the crankcase are____, especially for large bore engines where the components are quite heavy.

Injectors（喷油器）for use with heavy fuel oil must be cooled by either water or light oil to ____.

A four-stroke, cycle, turbocharged, 1000 horsepower diesel engine has been operating under load. The load suddenly increases, causing excessive black exhaust smoke, and a rapid rise in the lube oil temperature. In response to this condition, you should____.

If the jacket water temperature rises rapidly above normal in a diesel engine, you should first____.

An increased pressure differential（压力差）between the inlet and outlet of a strainer（过滤器）usually indicates the strainer is____.

Before putting on the starting air, the reversing（换向，倒车）and control gear should be____.

When starting, a fuel limiter automatically limits the movement of the governor（调速器）regulating shaft and thereby the____ of fuel which can be supplied to the engine.

Ring groove inserts（环槽插件）are occasionally used on aluminum alloy（铝合金）piston to____.

The blower type crankcase ventilation system（通风系统，排气系统）____.

Because the electronic governor（电子调速器）controller is a sensitive piece of electronic equipment and should not be mounted on the engine or in areas where it will be exposed to____.①vibration（振动）;②humidity（湿气）;③high temperatures;④oxygen

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