The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）

Diesel engine air start system check valves are opened by （）

The main purpose of port State control is not to（）

（） is not installed on the main switchboar.

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.

If separating effect is not good, which measure should be taken （）

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）

The condensers located in various stages of a flash evaporator are cooled by（）

Flame failure in an automatically fired auxiliary boiler can from a/an （）