海船船员考试

单选题A sudden drop in compression pressure in one cylinder of a diesel engine can be caused by（）A a leaking fuel injector nozzleB a clogged air filterC excessively early fuel injectionD malfunctioning valves

题目
单选题
A sudden drop in compression pressure in one cylinder of a diesel engine can be caused by（）
A

a leaking fuel injector nozzle

B

a clogged air filter

C

excessively early fuel injection

D

malfunctioning valves

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相似问题和答案

第1题：

If a heavy sea strikes the rudder, the shock is transmitted through ___ to the rams, this cause a sudden increase in oil pressure in one of the cylinders.

A.the control rod

B.the hunting gear

C.the floating ring

D.the tiller arm


正确答案：D

第2题：

单选题
A sudden drop in diesel engine cylinder compression pressure can be caused by（）
A

a leaking fuel injector nozzle

B

a clogged air filter

C

excessively early fuel injection

D

malfunctioning valves


正确答案： A
解析： 暂无解析

第3题：

If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the

A.cylinder compression pressure may not be high enough

B.cylinder compression temperature may be too high

C.fuel oil injection pressure may not be high enough

D.scavenge and purge process is incomplete


正确答案：A

第4题：

单选题
The loss of the diesel engine cylinder air charge through leaky valves, piston rings, worn or scored liners, would be indicated by which of the following sets of conditions?（）
A

Low compression pressure and high exhaust temperature

B

Low firing pressure and high exhaust temperature

C

Low compression pressure and low exhaust temperature

D

Low firing pressure and low exhaust temperature


正确答案： C
解析： 暂无解析

第5题：

单选题
Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause （）.
A

low compression pressure

B

increased piston wear

C

increased cylinder lube oil consumption

D

poor contact between compression rings and liner


正确答案： B
解析： 暂无解析

第6题：

单选题
Late fuel injection timing is indicated by （）
A

lower than normal cylinder pressure and low exhaust temperature

B

lower than normal cylinder pressure and high exhaust temperature

C

higher than normal cylinder pressure and low exhaust temperature

D

higher than normal cylinder pressure and high exhaust temperature


正确答案： B
解析： 暂无解析

第7题：

单选题
A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to （）
A

feel the high pressure fuel line

B

check the cylinder exhausts for white smoke frequently

C

check the cylinder exhaust temperature

D

isolate each cylinder and inspect the injector


正确答案： A
解析： 暂无解析

第8题：

Low compression in a diesel engine could be caused by

A.worn or broken cylinder liner sealing rings

B.high cooling water temperature

C.worn or broken piston rings

D.low fuel oil pressure


正确答案：C

第9题：

单选题
When a sudden increase in steam demand comes to normal, the drum pressure will and water level in the drum will（）.
A

rise, rise also

B

rise, drop

C

drop, rise

D

drop, drop also


正确答案： D
解析： 暂无解析

第10题：

单选题
If a diesel engine fails to start，one of the likely causes is （）
A

low compression temperature

B

low ambient air pressure

C

high lube oil pump pressure

D

high fuel oil booster pump pressure


正确答案： A
解析： 暂无解析

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