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The position of （） on the crosshead on a large diesel engine

题目
单选题
The position of （） on the crosshead on a large diesel engine is determined by dowel pins.
A

the guideway

B

the piston rod

C

the crosshead shoes

D

the interlocked circlip

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：

单选题
In large, low-speed, main propulsion diesel engine, position ring groove wear usually occurs at the（）
A

top of the ring groove

B

back of the ring groove

C

bottom of the ring groove

D

piston ring end clearance


正确答案： C
解析： 暂无解析

第2题：

单选题
Large crosshead type engine generally has two lubrication systems, a function performed only by crankcase oil system is（）
A

lubricating

B

cooling

C

cleaning

D

neutralizing


正确答案： A
解析： 暂无解析

第3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4题：

单选题
Which of the following procedures should be carried out when a large, low-speed, diesel engine is operated with one cylinder secured?（）
A

Lubrication to the defective cylinder should be increased

B

Cooling water temperature to the engine should be increased

C

Only the turbocharger speed should be reduced

D

Engine speed should be reduced


正确答案： D
解析： 暂无解析

第5题：

单选题
Which of the following procedures should be carried out to permit the use of a crosshead engine with an inoperable after-cooler?（）
A

Bypass the after-cooler to operate at speed

B

Run at reduced speed until the cooler can be repaired or renewed

C

Switch to diesel fuel and run at full speed

D

Nothing need to be done due to the low heating value of heavy fuel


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
（） can be found on most medium to large merchant vessels even if the main engine is either a steam turbine or 2-stroke crosshead engine.
A

The medium speed 4-stroke trunk piston engine

B

The low speed 2-stroke crosshead engine

C

The medium speed 2-stroke crosshead engine

D

The low speed 4-stroke trunk piston engine


正确答案： A
解析： 暂无解析

第8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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