The treatment of the fuel oils involves storage, heating, filtering and（）

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

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

Diesel engine air start system check valves are opened by （）

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

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.

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

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（）

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