A.flame safety lamp
B.combustible gas indicator
C.gasometer
D.oxygen indicator
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A.class A
B.class B
C.class C
D.class D
A.class A
B.class B
C.class C
D.class D
A.Chemical agent removal
B.Mechanical removal
C.Absorbent removal
D.None of the above
A.class A
B.class B
C.class C
D.class D
A.Carbon dioxide is corrosive when exposed to fire
B.Carbon dioxide should be applied slowly to a large engine room fire
C.Its total cooling effect is far greater than water
D.Its smothering effect is excellent for class B fires
最新試題
Under MARPOL Code the ship to which it applies has to carry （）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
（） is not installed on the main switchboar.
If separating effect is not good, which measure should be taken （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Cold weather starting of a diesel engine may be made easier by（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
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（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）