The compressor suction line conveys th

1、In the refrigeration compressor the te

In the refrigeration compressor the temperature of the vapor is （） by compression.AraisedBrisenCreducedDmaintained constant

2、The suction - force principle of opera

The suction - force principle of operation is a typical characteristic of （）.Acentrifugal pumpsBjet pumpsCpropeller pumpsDreciprocating pum

3、Lube oil pumps taking suction from the

Lube oil pumps taking suction from the sump of most small marine engines are usually （）.Aof the diaphragm typeBof the centrifugal typeCof the positive displacement typeDindependently driven by electric motor

4、A bilge suction line，in a fishing vess

A bilge suction line，in a fishing vessel with more than 16 individuals aboard，must have a strainer with an open area not less than how many times the open area of the suction line?（）AoneBtwoCthreeDfour

5、The emergency bilge suction valve is t

The emergency bilge suction valve is typically used （）.Ato inject cleaning additives when the bilges are extremely dirtyBwhen the main condense...

6、The emergency bilge suction or bilge （

The emergency bilge suction or bilge （） is used to prevent flooding of the ship.Ainjection valveBrelief valveCdischarge valveDinlet filter