In the cylinder head of a two-stroke/cycle diesel engine, va

题目
单选题
In the cylinder head of a two-stroke/cycle diesel engine, valves are used for()
A

air intake

B

a fuel outlet

C

cooling water inlets

D

exhausting combustion gas

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相似问题和答案

第1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2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3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4题:

单选题
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?()
A

Exhaust and scavenging

B

Scavenging and compression

C

Ignition and expansion

D

Exhaust and compression


正确答案: A
解析: 暂无解析

第5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

第6题:

单选题
Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of ()
A

less even torque

B

higher cylinder head temperatures

C

fewer power strokes per revolution

D

greater weight/size requirements


正确答案: A
解析: 暂无解析

第7题:

单选题
The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at()
A

one half crankshaft speed in a two-stroke cycle diesel engine

B

crankshaft speed in a two-stroke cycle diesel engine

C

two times crankshaft speed in a two-stroke cycle diesel engine

D

one-fourth times crankshaft speed in a four-stroke cycle diesel engine


正确答案: A
解析: 暂无解析

第8题:

单选题
Exhaust gases are generally removed from the cylinders of a two-stroke/cycle diesel engine by()
A

natural aspiration

B

masked intake valves

C

air cells

D

scavenging air


正确答案: B
解析: 暂无解析

第9题:

单选题
The size of the exhaust valve opening is ()
A

most critical in a four-stroke cycle diesel engine

B

most critical in a two-stroke/cycle diesel engine

C

most critical in a four-stroke/cycle diesel engine if it is turbocharged

D

of equal importance in a two-stroke/cycle diesel engine as in a four-stroke/cycle diesel engine


正确答案: A
解析: 暂无解析

第10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

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