单选题If the temperature in the icebox is too high, the trouble could be（）A a clogged scale trapB air in the systemC automatic controls not functioning properlyD insufficient cooling water to the condenser

题目

单选题

If the temperature in the icebox is too high, the trouble could be（）

a clogged scale trap

air in the system

automatic controls not functioning properly

insufficient cooling water to the condenser

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相似问题和答案

第1题：

Care must be taken not to wash or iron synthetic fibers at _____.

A、a too high temperature

B、too a high temperature

C、too high a temperature

D、a temperature too high

参考答案：C

第2题：

If the exhaust gas temperature of the incinerator is too high, or if sparks are developed, What should you do?

A.Close the inlet and outletvalves for diesel oil

B.Open the air nozzles in the secondary combustion chamber until it stops

C.Open the air nozzles in the primary combustion chamber until it stops

D.Close inlet valve for pressurized air

答案：B

第3题：

______ the temperature, _______ water turns into steam.

A.The high, the fast

B.Higher, faster

C.The more high, the faster

D.The higher, the faster

正确答案：D

第4题：

Cloud formations are minimal when the ______.

A.surface temperature and temperature aloft are equal

B.surface temperature and temperature aloft differ greatly

C.barometric pressure is very low

D.relative humidity is very high

正确答案：A
水面及其上方的温度相同时云的形成最小。

第5题：

In restricted visibility the speed of a vessel without operational radar may be ________ enable effective avoiding action to be taken on sighting another ship．

A.too low to

B.too high to

C.too high for

D.too low for

正确答案：A

第6题：

( )is monitored on the drain tank and header tank by magnetic switches with a 20seconds delay to prevent false alarms due to surging

A.Low pressure of the lubricating oil

B.Low level of the lubricating oil

C.High temperature of the lubricating oil

D.High temperature of the cooling water

答案：A

第7题：

If fuel injection to a four-stroke/cycle diesel engine begins earlier than designed, ignition may be delayed because the

A.cylinder compression pressure may not be high enough

B.cylinder compression temperature may be too high

C.fuel oil injection pressure may not be high enough

D.scavenge and purge process is incomplete

正确答案：A

第8题：

It can be inferred that the high rate of dropouts lies in_________

A． the too low salary for PhD

B． the too rigid academic requirement

C． the too high salary for dropouts

D． 1000 positions

正确答案：A
可由倒数第二段This may also be an indication of the fact that top salaries in the academic fields．where the PhD’s tend to rise to the highest salaries，are still lagging behind other fields．推出A项正确。B项“学术要求太严”只是某些人辍学的原因。C项错误，因为辍学者有一部分人工资高于博士生。D项文中没有提到。

第9题：

In restricted visibility the safe speed of a vessel without operational radar may be ________ enable effective avoiding action to be taken on sighting another ship．

A.too low to

B.too high to

C.too high for

D.too low for

正确答案：A

第10题：

You will soon（）the weather here, and then the changes in temperature will not trouble you much.

Aget used to

Bget over

Cget to

Dget on with

A
略

If the temperature in the icebox is too high, the trouble co

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