海船船员考试

单选题Trunk type diesel engine pistons are effectively cooled when heat is()A radiated through the engine blockB transferred to water cooled cylinder wallsC conducted through the piston crownD transferred to escaping exhaust gases

题目
单选题
Trunk type diesel engine pistons are effectively cooled when heat is()
A

radiated through the engine block

B

transferred to water cooled cylinder walls

C

conducted through the piston crown

D

transferred to escaping exhaust gases

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:

单选题
The marine diesel engine is a type of diesel engine used on ships The () of its operation is not very difficult to understand.
A

principle

B

principal

C

cause

D

case


正确答案: D
解析: 暂无解析

第2题:

单选题
A supercharged diesel engine when compared to a similar naturally aspirated diesel engine, will develop an increase in ()
A

ignition lag

B

engine horsepower

C

lube oil system pressure

D

specific fuel consumption


正确答案: D
解析: 暂无解析

第3题:

If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will_________.

A.backfire through the air intakes

B.develop less power under load

C.have high firing pressures

D.lift its cylinder relief valves


正确答案:B

第4题:

单选题
Which of the following operating conditions can occur when shims are removed from the joint between the foot of a marine type diesel engine connecting rod and the bearing box?()
A

Decreased connecting rod bearing clearance

B

Increased connecting rod bearing clearance

C

Decreased compression ratio

D

Increased compression ratio


正确答案: C
解析: 暂无解析

第5题:

单选题
For diesel engine piston cooling, lubricating oil can be supplied to the pistons by a/an ().
A

oil spray

B

oil bath

C

oil control rings

D

drilled passage through the camshaft


正确答案: B
解析: 暂无解析

第6题:

单选题
The consistent burning of fuel oil with a high sulfur content in a diesel engine will result in ()
A

clogged fuel injection pumps

B

increased cylinder liner wear

C

intake valve stem corrosion

D

varnish deposit on pistons


正确答案: C
解析: 暂无解析

第7题:

单选题
The main moving parts of a diesel engine consist of the () and the pistons.
A

bedplate, connecting rods

B

crankshaft, the connecting rods

C

frames, crossheads

D

crankshaft, the cylinder


正确答案: B
解析: 暂无解析

第8题:

A sudden power loss from a turbocharged and after-cooled diesel engine is an indication of a/an

A.turbocharger malfunction or failure

B.crankcase exhauster overload

C.overload on the intercooler

D.obstruction in the engine cylinders


正确答案:A

第9题:

单选题
If the jacket water temperature in an auxiliary diesel engine cooling system is lower than normal, the probable cause is ()
A

air binding of the engine cooling system

B

a cracked water cooled exhaust manifold

C

blockage in the heat exchanger

D

faulty operation of the thermostat


正确答案: B
解析: 暂无解析

第10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

更多相关问题