海船船员考试

单选题On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?（）A Engine is hard to startB Engine missesC Surges at governed RPMD Coolant temperature is too low

题目
单选题
On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?（）
A

Engine is hard to start

B

Engine misses

C

Surges at governed RPM

D

Coolant temperature is too low

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相似问题和答案

第1题：

单选题
As a heat engine,（） energy is the source of power by which the diesel engine can be operated.
A

electric

B

heat

C

mechanical

D

exhaust


正确答案： D
解析： 暂无解析

第2题：

单选题
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


正确答案： C
解析： 暂无解析

第3题：

On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).

A.a spindle lubricator

B.an oil jet

C.internal splashing

D.drilled passages in the crankshaft


正确答案：D
解析：medium：中等，介质;pin：销，刺穿，钉住;journal：轴颈;spindle：芯轴，转轴;lubricator：注油器;splash：飞溅
译文：对于中速主推进柴油机，曲柄销轴承通过曲轴内钻孔的油道供油润滑。

第4题：

单选题
Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?（）
A

Carbon dioxide

B

Carbon monoxide

C

Carbon trioxide

D

Hydrogen sulfide


正确答案： A
解析： 暂无解析

第5题：

单选题
Which of the listed diesel engine systems is likely to create the problem of a cylinder regularly misfiring?（）
A

Lubrication

B

Cooling

C

Fuel

D

Electric ignition


正确答案： A
解析： 暂无解析

第6题：

单选题
Mechanical lubricators for diesel engine cylinders are usually small reciprocating pumps which are （）.
A

operated manually once an hour

B

operated until the engine has started

C

placed into operation only at maximum load

D

adjustable to meet lubrication requirements


正确答案： B
解析： 暂无解析

第7题：

单选题
The diesel engine consumes considerably less fuel than the steam engine for equal output, （） enables a motor-ship to load more cargo.
A

why

B

which

C

in which

D

on which


正确答案： D
解析： 暂无解析

第8题：

单选题
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
A

Impeller

B

Compressor

C

After-cooler

D

Exhaust differ


正确答案： C
解析： 暂无解析

第9题：

单选题
Which of the listed diesel engine operating conditions should be checked immediately after any diesel engine is started?（）
A

Exhaust temperature

B

Lube oil level

C

Lube oil pressure

D

Water level in the expansion tank


正确答案： C
解析： 暂无解析

第10题：

单选题
Why a gearbox is needed in a ship driven by a medium-speed diesel engine?（）
A

To reduce the main engine speed

B

To increase the main engine speed

C

To govern the main engine speed

D

To fix the propeller shaft


正确答案： A
解析： 暂无解析

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