海船船员考试

单选题The reciprocating pump can’t draw water from a tank may be caused by （）.A leaky pipeB opened inlet valveC too much water in tankD None of the above

题目
单选题
The reciprocating pump can’t draw water from a tank may be caused by （）.
A

leaky pipe

B

opened inlet valve

C

too much water in tank

D

None of the above

参考答案和解析
正确答案： A
解析： 暂无解析
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相似问题和答案

第1题：

A centrifugal pump may fail to deliver water when first started if the ______.

A.water seal pipe is plugged

B.pump is not primed

C.seal ring is properly located

D.impeller is flooded


正确答案：B

第2题：

单选题
A water pump can not supply water after startingIt may be caused by （）.
A

closed discharge valve

B

broken pipe line

C

worn shaft

D

both A and B


正确答案： D
解析： 暂无解析

第3题：

The borrower may draw the funds from the credit aggregates within the time limit for expanding their operations.

A．Right

B．Wrong

C．Doesn't say


正确答案：A
解析：整个第一段和第二段第一句都说明了在确定的时期内，定期贷款可能被用作扩大经营，a major plant expansion(企业扩大)所带来的提示。

第4题：

单选题
A new ocean going ship of 2000 gross tons having an inoperative oily water separator may dispose of its bilge slops by （）.
A

holding its slops onboard until they can be pumped into the city sewer system

B

circulating them through the lube oil purifier to remove water and debris

C

holding its slops onboard until they can be discharged to a shore side reception facility

D

pumping them into a settling tank for separation before pumping the oily water residue overboard


正确答案： C
解析： 暂无解析

第5题：

单选题
In the event of damage to the DEEP WATER SHIP which results in flooding to one of the lower-hull tanks，pump from（）.
A

nearby damaged tanks

B

nearby undamaged tanks containing ballast

C

tanks on the opposite corner

D

the opposite trim tank


正确答案： B
解析： 暂无解析

第6题：

单选题
The domestic fresh water pump starters are controlled by pressure switches which operate when the pressure in the tank varies within predetermined limits as water is drawn offThe word “which” means （）.
A

starters

B

pressure switches

C

pressure

D

water


正确答案： B
解析： 暂无解析

第7题：

单选题
In a domestic fresh water system, the pump starters are controlled by （） switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.
A

water level

B

water flow

C

temperature

D

pressure


正确答案： C
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
Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? （） (1) reciprocating (2) rotary (3) centrifugal
A

（1）only

B

（1）and（2）

C

（1），（2）and（3）

D

（2）and（3）


正确答案： B
解析： 暂无解析

第10题：

单选题
The main propulsion diesel engine jacket water temperature rises above normal, with the raw water sea suction and the expansion tank water level being normalWhich 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 seal


正确答案： C
解析： 暂无解析

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