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

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

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

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

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

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

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

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

If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）