海船船员考试

单选题During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.A the highestB above 3/4C 1/2 -3/4D the lowest

题目
单选题
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
A

the highest

B

above 3/4

C

1/2 -3/4

D

the lowest

参考答案和解析
正确答案： D
解析： 暂无解析
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：

Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?

A.Baffle plates that have been bent during prior removal

B.Leaks m the cooler tube nest

C.Operating the engine while maintaining a high sea water outlet temperature

D.A punctured sea water strainer supplying cooling water to the heat exchanger


正确答案：C

第2题：

单选题
During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should （）
A

notify the duty officer, reduce the engine speed, take some measures to remove failures

B

notify the duty officer and stop the engine immediately, find the cause and remove failures

C

notify the C/E

D

notify the captain


正确答案： A
解析： 暂无解析

第3题：

In a diesel engine closed freshwater cooling system, the amount of coolant flowing through the heat exchanger is controlled by the __.

A.suction pressure regulator

B.thermostatic bypass valve

C.sea water temperature

D.water level in the expansion tank


正确答案：B

第4题：

单选题
Why the cooling water of the diesel engine should be treated? Because the（）
A

Cooling water is alkalescence

B

cooling water is acidity

C

cooling water has salinity

D

cooling water has impurity


正确答案： B
解析： 暂无解析

第5题：

单选题
Which of the following factors tends to increase scale formation on the saltwater side of a heat exchanger used in a diesel engine cooling water system?（）
A

Baffle plates that have been bent during prior removal

B

Leaks in the cooler tube nest

C

Operating the engine while maintaining a high sea water outlet temperature

D

A punctured sea water strainer supplying cooling water to the heat exchanger


正确答案： C
解析： 暂无解析

第6题：

单选题
If a diesel engine were running at 20% overload with a smoky exhaust, you should（）
A

stop the engine immediately to prevent damage

B

increase lube oil pressure

C

slow the engine allowing it to gradually cool

D

decrease the cooling water it temperature to the water jacket


正确答案： A
解析： 暂无解析

第7题：

单选题
Stating a large propulsion diesel engine using diesel fuel during cold weather conditions can 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 jacket water


正确答案： A
解析： 暂无解析

第8题：

The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause?

A.Faulty thermostatic bypass valve

B.Eroded zinc pencils in the heat exchanger

C.Steam formation in the expansion tank

D.Excessive leakage from jacket water pump seals


正确答案：A

第9题：

单选题
Due to excessive water in the fuel, a diesel engine fails to startBefore the engine can be started, the water must be removed from the （）.
A

fuel pumps

B

cylinders

C

fuel strainers

D

all of above


正确答案： A
解析： 暂无解析

第10题：

单选题
If the operating element of a thermostatic valve installed in a diesel engine cooling system malfunctions, it may result in （）
A

a low level in the engine expansion tank

B

excessively high coolant pressure

C

improper temperatures

D

malfunctioning of the jacket water heater


正确答案： B
解析： 暂无解析

更多相关问题
相关内容