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Which of the listed cylinder liner surface conditions indica

题目
单选题
Which of the listed cylinder liner surface conditions indicates proper lubrication?（）
A

Dull black appearance

B

Bright appearance

C

Thin layer of lacquer

D

Thick oily film

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相似问题和答案

第1题：

单选题
Which of the following operation will have a direct impact on the rate of wear in a cylinder liner （）
A

amount of scavenge air to the cylinder

B

quality of fuel injected

C

viscosity of the lube oil

D

compression ratio of the piston


正确答案： A
解析： 暂无解析

第2题：

单选题
Which of the diesel engine cylinder liners listed has internal cooling water passages?（）
A

Internally finned liner

B

Externally finned liner

C

Wet liner

D

Integral water-jacket liner


正确答案： C
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
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5题：

单选题
When good and steady service conditions have been achieved, the running surfaces of the piston rings and cylinder liner will be（）In addition, the rings will move freely in the grooves and also be well oiled intact, and not unduly worn.
A

hazy light

B

hazy light brown

C

hazy light blue

D

hazy light grey


正确答案： A
解析： 暂无解析

第6题：

单选题
In addition to lubricating, cylinder oil assists in forming a gas seal and contains （） which clean the cylinder liner.
A

additives

B

water

C

grease

D

acid solution


正确答案： A
解析： 暂无解析

第7题：

单选题
The bore of each cylinder is formed in a liner which can be （） when worn out.
A

welded

B

replaced

C

drilled again

D

bored


正确答案： D
解析： 暂无解析

第8题：

单选题
Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?（）
A

Excessive cylinder liner

B

water in the fuel system

C

Cracked cylinder liner

D

Leaking lube oil cooler


正确答案： A
解析： 暂无解析

第9题：

单选题
In which of the scavenging methods listed will the exhaust valve be located in the cylinder head?（）
A

Return-flow

B

Uniflow

C

Cross-flow

D

Direct flow


正确答案： D
解析： 暂无解析

第10题：

单选题
Which of the listed conditions will occur if a diesel engine exhaust valve is leaking?（）
A

Loss of compression for that cylinder

B

Misfiring or rough running

C

Damage to the valve

D

All of the above


正确答案： C
解析： 暂无解析

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