海船船员考试

单选题Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.A cooling waterB compressing airC compressed airD cylinder oil

题目
单选题
Diesel engines are started by supplying （） into the cylinders in the appropriate sequence for the required direction.
A

cooling water

B

compressing air

C

compressed air

D

cylinder oil

如果没有搜索结果，请直接 联系老师 获取答案。
如果没有搜索结果，请直接 联系老师 获取答案。
相似问题和答案

第1题：

Diesel engines are started by supplying_____into the cylinders in the appropriate sequence for the required direction.

A.cooling water

B.compressing air

C.compressed air

D.cylinder oil


正确答案：C

第2题：

单选题
Heat damage to fuel injection nozzles on small high-speed diesel engines, can be prevented by（）
A

employing fuel oil as a cooling medium

B

preventing hard carbon deposit on nozzle tips

C

avoiding fuel oil temperature exceeding builder’s specification

D

ensuring good metallic contact between nozzles and cylinder heads


正确答案： D
解析： 暂无解析

第3题：

An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.

A.graphite packing

B.sealing compound

C.lubricating oil

D.gaskets


正确答案：D

第4题：

单选题
In large marine diesel engines cylinder oils usually contain additives formulated to impart the （） to clean the rings and grooves.
A

inefficiency

B

oiliness

C

detergency

D

purity


正确答案： A
解析： 暂无解析

第5题：

单选题
Scuffed cylinder liner wearing surfaces in a diesel engines can result from （）
A

starting the engine while hot

B

knurling the piston skirt

C

operating the engine overheated

D

scuff resistant piston rings


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
Air scavenging of a diesel engine cylinder（）
A

blows out the exhaust gases

B

supplies oxygen for combustion

C

cools the valves and cylinder walls

D

all of the above


正确答案： C
解析： 暂无解析

第8题：

Diesel engines are started by supplying into the cylinders in the appropriate sequence for the required direction.

A.cooling water

B.compressing air

C.compressed air

D.cylinder oil


正确答案：C

第9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10题：

单选题
When an air started, four-stroke/cycle diesel engine is being cranked, the starting air is admitted to each cylinder during what would normally be the（）
A

intake stroke

B

compression stroke

C

power stroke

D

exhaust stroke


正确答案： A
解析： 暂无解析

更多相关问题
相关内容