The cylinders, with cooling jackets, a

1、Passage Four"Cool" is a word with many

Passage Four"Cool" is a word with many meanings. Its old meaning is used to express a temperature that is a little bit cold. As the world h...

2、CO2 cylinders equipped with pressure a

CO2 cylinders equipped with pressure actuated discharge heads will discharge automatically when（）.Athe discharge valve is openBthe control box gl...

3、In a refrigeration system, if the cool

In a refrigeration system, if the cooling water to the condenser fails, the（）.Abox temperature solenoid valve will closeBexpansion valve will closeCcompressor will shutdownDking valve will ope

4、The main engine is cooled with fresh w

The main engine is cooled with fresh water （）is added suitable small quantities of chemicals to prevent corrosion.Ain whichBon whichCto whichDby which

5、Cylinder liner cooling is often referr

Cylinder liner cooling is often referred to as （）.Apiston coolingBsleeve coolingCcentral coolingDjacket cooling

6、Life jackets should be marked with the

Life jackets should be marked with the（）.Amaximum weight allowedBstowage space assignedCvessel's home portDvessel's name