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

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

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish

The cetane rating of diesel fuel is an indication of the （）

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

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

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（）

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