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In a naturally aspirated diesel engine, the volume of air in

题目
单选题
In a naturally aspirated diesel engine, the volume of air intake is directly related to engine （）.
A

compression ratio

B

valve size

C

fuel pressure

D

cylinder clearance volume

参考答案和解析
正确答案： A
解析： 暂无解析
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相似问题和答案

第1题：

单选题
Intake air flow from a diesel engine turbocharger is directly proportional to engine（）
A

exhaust gas pressure

B

exhaust gas temperature

C

speed

D

load


正确答案： D
解析： 暂无解析

第2题：

单选题
Air motion is induced in a four-stroke/cycle diesel engine cylinder to improve air fuel mixing, and is known as（）
A

supercharging

B

scavenging

C

turbulence

D

swept volume charging


正确答案： C
解析： 暂无解析

第3题：

Which of the following conditions is realized by the turbo-charging of a previously naturally aspirated diesel engine?

A.Ignition lag increases.

B.Lube oil system pressure increases.

C.Brake specific fuel consumption increases.

D.Mechanical efficiency increases.


正确答案：D

第4题：

单选题
When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）
A

starting air pressure

B

scavenge air pressure

C

over-speed trip

D

banjo oiler line


正确答案： B
解析： 暂无解析

第5题：

单选题
Diesel engine air start valve timing is controlled by（）
A

engine operating speed

B

an air manifold

C

a hydraulic distributor

D

individual cams and valve gear


正确答案： C
解析： 暂无解析

第6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7题：

单选题
A diesel engine is supercharged in order to（）
A

lower the no-load RPMs

B

provide more air for combine with the fuel

C

increase the no-load RPMs

D

provide more fuel combine with the air


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
The expansion tank for a diesel engine closed cooling system is designed to maintain a constant head on the system and （）.
A

reduce water temperature

B

reduce water turbulence

C

provide an air cushion

D

allow for an increase in water volume as the engine warms up


正确答案： B
解析： 暂无解析

第10题：

单选题
Diesel engine air start system check valves are opened by （）
A

an air start cam

B

cylinder compression pressure

C

starting air pressure

D

valve springs


正确答案： D
解析： 暂无解析

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