單項選擇題

A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.

A.30 gallons per minute
B.40 gallons per minute
C.50 gallons per minute
D.60 gallons per minute

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單項選擇題

A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.

A.generators
B.oil drums
C.the bridge controls
D.combustible metals

單項選擇題

A portable dry chemical fire extinguisher discharges by（）.

A.gravity when the extinguisher is turned upside down
B.pressure from a small CO₂ cartridge on the extinguisher
C.air pressure from the hand pump attached to the extinguisher
D.pressure from the reaction when water is mixed with the chemical

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A ship helicopter landing deck on which fueling operations are conducted must have a fire protection system that is capable of discharging at 100 psi pressure a foam spray of at least（）.

你可能感興趣的試題

A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.

A portable dry chemical fire extinguisher discharges by（）.