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

（） is not installed on the main switchboar.

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

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

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 main purpose of port State control is not to（）

Using a file without a handle may result in （）

Under MARPOL Code the ship to which it applies has to carry （）

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

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