海船船员考试

单选题If a diesel engine were running at 20% overload with a smoky exhaust, you should（）A stop the engine immediately to prevent damageB increase lube oil pressureC slow the engine allowing it to gradually coolD decrease the cooling water it temperature to t

题目
单选题
If a diesel engine were running at 20% overload with a smoky exhaust, you should（）
A

stop the engine immediately to prevent damage

B

increase lube oil pressure

C

slow the engine allowing it to gradually cool

D

decrease the cooling water it temperature to the water jacket

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相似问题和答案

第1题：

单选题
The marine diesel engine is a type of diesel engine used on ships The （） of its operation is not very difficult to understand.
A

principle

B

principal

C

cause

D

case


正确答案： D
解析： 暂无解析

第2题：

单选题
A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in （）
A

ignition lag

B

engine horsepower

C

lube oil system pressure

D

specific fuel consumption


正确答案： D
解析： 暂无解析

第3题：

A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/an

A.turbocharger malfunction or failure

B.crankcase exhauster overload

C.overload on the intercooler

D.obstruction in the engine cylinders


正确答案：A

第4题：

单选题
Incomplete combustion in a running diesel engine can cause piston rings to become stuck as a result of （）
A

residual carbon deposits

B

lube oil viscosity breakdown

C

uneven heat expansion of the rings

D

uneven heat expansion of the piston


正确答案： B
解析： 暂无解析

第5题：

单选题
If a single cylinder relief valve on a diesel engine lists frequently while the engine is running, the cause may be an （）
A

excessively late injection timing for each cylinder

B

incorrectly adjusted intake valve timing

C

incorrectly adjusted fuel injector

D

incorrectly adjusted intake valve clearance


正确答案： A
解析： 暂无解析

第6题：

单选题
During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should （）
A

notify the duty officer, reduce the engine speed, take some measures to remove failures

B

notify the duty officer and stop the engine immediately, find the cause and remove failures

C

notify the C/E

D

notify the captain


正确答案： A
解析： 暂无解析

第7题：

单选题
The knock occurring when a cold diesel engine is started and continues while running at low speed, but stops when the engine reaches normal operating speed and temperature, is（）.
A

caused by retarded injection timing

B

caused by a mechanical defect in one cylinder

C

caused by high fuel injection pressures

D

normal for these conditions


正确答案： B
解析： 暂无解析

第8题：

A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.

A.corrosion at low engine loads

B.erosion at high engine loads

C.overload at high engine loads

D.scaling at all exhaust temperatures


正确答案：A

第9题：

单选题
Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）
A

increasing the quantity of starting air

B

increasing the lube oil pressure

C

heating the engine fuel supply

D

heating the engine coolant


正确答案： A
解析： 暂无解析

第10题：

单选题
A dark exhaust from a running diesel engine can be caused by （）
A

late ignition

B

water in the fuel

C

high compression temperature

D

starting valve stuck open


正确答案： A
解析： 暂无解析

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