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单选题In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?()A Bed plateB ColumnC EntablatureD Tie rod

题目
单选题
In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?()
A

Bed plate

B

Column

C

Entablature

D

Tie rod

参考答案和解析
正确答案: D
解析: 暂无解析
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相似问题和答案

第1题:

单选题
On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an ()
A

dial indicator

B

outside caliper

C

bridge gauge

D

tram rod


正确答案: D
解析: 暂无解析

第2题:

单选题
Telescopic pipes to the piston of a large slow-speed main propulsion diesel engine are designed to prevent ().
A

excessive crankcase pressure

B

excessive lube oil temperature

C

contamination of the lube oil by water

D

contamination of the cooling water by lube oil


正确答案: C
解析: 暂无解析

第3题:

In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.

A.governor droop

B.speeder spring tension

C.fuel rack lag

D.load on the engine


正确答案:D

第4题:

单选题
Mist detectors used on large low-speed main propulsion diesel engines monitor and check for the presence of ().
A

fuel oil vapor at the sludge tank vent

B

unburned fuel vapors in the scavenge air receiver

C

lube oil vapors in the crank case

D

lube oil vapors in the engine room


正确答案: C
解析: 暂无解析

第5题:

单选题
If a single cylinder relief valve on a main propulsion diesel engine begins to lift, but it is not possible to secure the engine, which of the following actions should be taken?()
A

Increase the cooling water flow to the engine

B

Secure or reduce fuel to that cylinder

C

Screw down on the pressure adjusting spring to decrease to decrease popping pressure

D

Readjust the injection timing


正确答案: A
解析: 暂无解析

第6题:

单选题
While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?()
A

Manually trip the over-speed device

B

Interrupt the fuel flow to the engine

C

Disengage the safety interlock

D

Slide the camshaft to the neutral position


正确答案: B
解析: 暂无解析

第7题:

单选题
The opening of an exhaust valve on a modem, large, low-speed, main propulsion diesel engine may be actuated by ().
A

direct action of cam shaft

B

compressed air pressure

C

hydraulic “push rods”

D

direct action of the main piston moving down


正确答案: A
解析: 暂无解析

第8题:

The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by_______.

A.large conical springs

B.compressed air pressure

C.hydraulic pressure

D.exhaust gas pressure


正确答案:B

第9题:

单选题
Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by ()
A

increasing the quantity of starting air

B

increasing the lube oil pressure

C

heating the engine fuel supply

D

heating the engine coolant


正确答案: A
解析: 暂无解析

第10题:

单选题
The power developed by a large slow-speed main propulsion diesel engine is dependent upon the ()
A

quantity of air it takes in and retains in the cylinders during a given time period

B

proportion of trapped air that is utilized in the combustion process

C

thermodynamic efficiency of the engine cycle

D

all of the above


正确答案: B
解析: 暂无解析

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