海船船员考试

单选题The air charge leaving an intercooler, or after-cooler of an air compressor can be expected to be （）.A superheatedB super-cooledC at or below the dew pointD All of the above

题目
单选题
The air charge leaving an intercooler, or after-cooler of an air compressor can be expected to be （）.
A

superheated

B

super-cooled

C

at or below the dew point

D

All 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：

单选题
Excessive lube oil consumption by a reciprocating air compressor can be caused by （）.
A

using a slightly dirty air filter

B

using oil having an excessive viscosity

C

intercooler or after-cooler leaks

D

carrying the oil level higher than normal


正确答案： B
解析： 暂无解析

第2题：

单选题
When used in conjunction with a turbocharger, the main function of an after-cooler is to （）
A

increase the density of the cylinder air charge

B

prevent turbocharger overheating

C

liminate the need for a pre-cooler

D

remove moisture from air compressed by the turbocharger


正确答案： B
解析： 暂无解析

第3题：

The air-conditioners are tested for defects before leaving the factory.

A:parts
B:functions
C:faults
D:motions

答案：C
解析：
本题考查的是对名词的认知。这句话的意思是：在出厂前，空调要经过测试来寻找缺陷。defect的意思是缺陷。例如：The defect in the drainage must be remedied.这排水系统的缺陷必须设法补救。A.parts部件；B .functions功能；C.faults缺点，例如：His manners had always made her blind to his faults．他的彬彬有礼总是使她对他的缺点视而不见；D.motions 动作。defect和fault意思最接近，所以选C。

第4题：

单选题
A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.
A

pressed；to

B

pressurized；with

C

pushed；in

D

compressed；to


正确答案： C
解析： 暂无解析

第5题：

单选题
Charging is the filling of the engine cylinder with a supply or charge of fresh air （） compression.
A

to need

B

ready for

C

want to

D

going to be


正确答案： D
解析： 暂无解析

第6题：

单选题
A dirty intercooler on an air compressor will cause （）.
A

damage to the un-loader operating diaphragm

B

an increase in current flow to the motor

C

high pressure in the receiver and filter

D

an excessive consumption of crankcase oil


正确答案： C
解析： 暂无解析

第7题：

单选题
Condensate must be drained from the intercooler and after-coolers of an air compressor because （）.
A

the cooling effect of the condensate reduces the compressors efficiency

B

a danger of explosion exists whenever water is present in a compressor

C

water causes erratic operation of pneumatic components

D

the volumetric capacity of the first stage is reduced if water remains


正确答案： A
解析： 暂无解析

第8题：

The cleaner has just left,leaving an aerosol’s delightful aroma floating in the air.You ______ deeply,enjoying the sweet fragrance.

A.exert
B.inhale
C.exhale
D.inert

答案：B
解析：
本题考查形近词辨析。题目意为“清洁工刚刚离开，空气中飘浮着气雾剂的芳香。你深深地吸气，享受着甜蜜的香味。”A选项“运用，发挥”，及物动词；B选项“吸气，吸入”，动词；C选项“呼气，呼出”，动词；D选项“惰性的，迟缓的”，形容词。
　　

第9题：

单选题
The pressurized air is usually cooled to increase the charge air （）.
A

viscosity

B

density

C

velocity

D

electricity


正确答案： A
解析： 暂无解析

第10题：

单选题
The burning of the fuel adds more heat to the air charge, causing it to expand and force the engine piston to do work on the crankshaftWhat does “it” mean in this sentence?（）
A

the burning

B

the fuel

C

the air charge

D

the engine piston


正确答案： B
解析： 暂无解析

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