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

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

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

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

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

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.

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）

Using a file without a handle may result in （）

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