A.6%
B.8%
C.10%
D.12%
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（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Flame failure in an automatically fired auxiliary boiler can from a/an （）
Under MARPOL Code the ship to which it applies has to carry （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
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（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）