A.class A
B.class B
C.class C
D.class D
您可能感興趣的試卷
你可能感興趣的試題
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
A.go down by the head
B.list to starboard
C.trim by the stem
D.list to port
A.absorb the oil for easy removal
B.remove the oil from the water
C.disperse or dissolve the oil in the water
D.not affect the oil
A.To make them aware there is a fire
B.To let them know they should leave the engine room
C.To prevent possible injury from frostbite
D.To make them aware that ventilation will automatically stop
A.boiling point
B.flash point
C.viscosity point
D.toxic point
最新試題
Flame failure in an automatically fired auxiliary boiler can from a/an ()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?()
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
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.
()are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.