To prevent the spread of fire by convection you should _____.
A.remove combustibiles from direct exposure
B.cool the bulkhead around the fire
C.close all openings to the area
D.shut off electrical power
第1题
A.protective earth
B.isolators
C.ground switch
D.circuit-breakers
第2题
A.raise lube oil viscosity for easier starting in cold weather
B.increase air inlet temperature
C.increase compression ratio
D.increase jacket water temperature for easier starting in cold weather
第3题
A.after being accepted by more than two thirds of the Parties
B.after being accepted by more than half of the Parties
C.within a specified period of time with no objections
D.within a specified period of time with no exceptions
第4题
A.6 short blasts and 1 long blast
B.long blast mare than 6 short blasts
C.more than 6 short blasts and 1 long blast
D.1 long blast of at least 10 seconds
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