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

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）

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

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

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

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（）

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

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.

Using a file without a handle may result in （）

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