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Diesel engine blow-by is the leakage of combustion gases pas

题目
单选题
Diesel engine blow-by is the leakage of combustion gases past the （）
A

oil rings only

B

compression and scraper rings

C

cylinder liner sealings

D

cylinder liner ring grooves

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相似问题和答案

第1题：

单选题
What determines the number of events occurring in a cycle of operation in an internal combustion engine?（）
A

Crankshaft revolution

B

Type of engine (diesel or gasoline)

C

Distance a piston travels during a stroke

D

Number of pistons


正确答案： B
解析： 暂无解析

第2题：

单选题
In a diesel engine, blow-by is a result of combustion gases leaking into the crankcase past the （）
A

wrist pin bushings

B

compression rings

C

cylinder liner seals

D

cylinder liner sealing ring


正确答案： B
解析： 暂无解析

第3题：

Diesel engine blow-by is the leakage of combustion gases past the( ).

A.oil rings only

B.compression and scraper rings

C.cylinder liner sealing

D.cylinder liner ring grooves


正确答案：B
解析：scraper：刮刀;groove：槽
译文：柴油机漏气指的是燃气通过压缩环(气环)和刮油环泄漏。

第4题：

单选题
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
A

During operation at low speed

B

During operation at rated speed, but low power output

C

During acceleration

D

All of the above


正确答案： B
解析： 暂无解析

第5题：

单选题
The exhaust system for a turbocharged two-stroke/cycle diesel engine functions to（）
A

discharge exhaust gases and smoke

B

furnish energy to the turbocharger

C

reduce engine room noise

D

all of the above


正确答案： C
解析： 暂无解析

第6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7题：

单选题
Forcing the exhaust gases form the cylinder of an operating diesel engine with the aid of a blower is known as （）
A

scavenging

B

forced draft

C

turbo-charging

D

aspiration


正确答案： D
解析： 暂无解析

第8题：

单选题
An increase in diesel engine crankcase pressure generally indicates excessive（）
A

compression pressure

B

lube oil header pressure

C

scavenge air pressure

D

piston ring blow-by


正确答案： C
解析： 暂无解析

第9题：

单选题
In a diesel engine, blow-by is generally the result of worn（）
A

valve guides

B

oil control rings

C

valve seats

D

compression rings


正确答案： D
解析： 暂无解析

第10题：

单选题
Diesel engine blow-by is the leakage of combustion gases past the （）
A

oil rings only

B

compression and scraper rings

C

cylinder liner sealings

D

cylinder liner ring grooves


正确答案： D
解析： 暂无解析

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