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（）

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

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

To proceed to the assistance of a ship in distress is（）

Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）

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

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

Cold weather starting of a diesel engine may be made easier by（）

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