Diesel engine cylinder head test cocks are used to ()

题目
单选题
Diesel engine cylinder head test cocks are used to ()
A

check cylinder lubrication

B

connect the pressure indicator pressure

C

test cylinder heads

D

connect the exhaust gas pyrometers

参考答案和解析
正确答案: B
解析: 暂无解析
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相似问题和答案

第1题:

How does combustion air enter the cylinder of a two-cycle diesel engine ? Through _______.

A.Cylinder head valves

B.Ports

C.Turbo chargers

D.Bleeder valves


正确答案:B

第2题:

单选题
Low compression in a diesel engine can be caused by ()
A

clogged coolant passages

B

a leaking cylinder head gasket

C

low fuel oil pressure

D

worn or broken cylinder liner sealing rings


正确答案: D
解析: 暂无解析

第3题:

High firing pressures and low exhaust temperature in a diesel engine may resultfrom( ).

A.decreased piston to cylinder head clearance

B.increased exhaust system back pressure

C.early fuel injection timing

D.low scavenge air temperature


正确答案:C
解析:decrease:减少;clearance:间隙
译文:喷油定时过早会引起柴油机爆炸压力偏高、排温偏低。

第4题:

单选题
Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?()
A

Leaking seal ring

B

Insufficient heat transfer from the exhaust valves

C

Block cooling water passages to the head

D

Excessive scavenging air provided to the engine


正确答案: C
解析: 暂无解析

第5题:

单选题
One end of a diesel engine cylinder is sealed by the cylinder head and the other end by the ()
A

crankcase

B

piston

C

cylinder liner

D

crank cheek


正确答案: B
解析: 暂无解析

第6题:

A Kort nozzle is a(n) ______.

A.hollow tube surrounding the propeller used to improve thrust

B.nozzle attached to a firefighting hose

C.intake valve on a diesel engine

D.piston cylinder on a diesel engine


正确答案:A
Kortnozzle(科特导流管)是中间空心的,在螺旋桨周围的用来提高侧推力的导流管。

第7题:

单选题
A diesel engine cylinder head can crack as a result of ()
A

a leaking seal ring

B

heat transfer from exhaust valves

C

restricted cooling passages

D

overheated intake valves


正确答案: B
解析: 暂无解析

第8题:

Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?

A.Leaking seal ring

B.Insufficient heat transfer from the exhaust valves

C.Blocked cooling water passages to the head

D.Excessive scavenging air provided to the engine


正确答案:C

第9题:

单选题
If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?()
A

The cylinder indicator cocks should be opened

B

The sump lube oil scavenge pump should be secured immediately

C

The explosion relief valves should be manually opened

D

The crankcase should remain unopened until the engine has cooled


正确答案: B
解析: 暂无解析

第10题:

单选题
Diesel engine cylinder head test cocks are used to()
A

check cylinder lubrication prior to starting engine

B

connect exhaust gas analyzers to determine engine efficiency

C

pressure test cylinder heads to check for leaks

D

remove moisture accumulations from cylinder prior to starting


正确答案: D
解析: 暂无解析

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