A.cooling
B.smothering
C.oxygen dilution
D.breaking the chain reaction
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A.heated gases flowing through ventilation systems
B.the transfer of heat across an unobstructed space
C.burning liquids flowing into another space
D.transmitting the heat of a fire through the ship's metal
A.directly outside the space protected by the system
B.as near the gas cylinders as possible
C.in the pilothouse
D.on the main deck near the bow
A.first
B.following control of fire
C.following restoration of vital services
D.only if a threat exists
A.immediately after restoring vital services
B.immediately
C.following control of flooding
D.following establishment of fire boundaries
A.flash point
B.upper explosive limit
C.lower explosive limit
D.fire point
最新試題
On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
Convection spreads a fire by（）.
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
Each hand portable fire extinguisher must be marked with（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
CO2 extinguishes a fire by（）.