（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）

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

（） is not installed on the main switchboar.

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

The ISPS Code consists of a mandatory section-Part A, which shows（）

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

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

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（）

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）