A.blows the fire back toward the vessel
B.comes over the bow
C.comes over the stern
D.comes over either beam
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A.alternate expansion and contraction as water in a liquid state becomes a vapor
B.absorption of smoke and gases as water is converted from a liquid to a vapor
C.rapid contraction as water is converted from a liquid to a vapor
D.rapid expansion as water absorbs heat and changes to steam
A.damage from crane operations
B.being used for wash down purposes
C.accidental diversion of flow to wrong location
D.freezing
A.vapor to oxygen
B.the flammable limit concentration
C.the autoignition concentration
D.the lower explosive limit concentration
A.fuel oil
B.wood
C.celluloid
D.electrical insulation
A.preventing oxygen from reaching the burning material
B.cooling the burning material below its ignition temperature
C.using the extinguishing agent to make the burning material fire-resistant
D.using the extinguishing agent to absorb the heat
最新試題
Blocking open or removing fire dampers can cause（）.
CO2 extinguishes a fire by（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
Each part of the fire-main system located on an exposed deck must be（）.
Each hand portable fire extinguisher must be marked with（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
Convection spreads a fire by（）.
Cargo transfer operations on a tanker need NOT be stopped when（）.