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

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

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

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

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

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

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

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

（） is not installed on the main switchboar.