A.cannot be made with salt water
B.is heavier than oil and sinks below its surface
C.is corrosive and a hazard to fire fighters
D.conducts electricity
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A.it can break down under high heat and emit noxious fumes
B.it will decompose under prolonged storage and lose its effectiveness
C.fire has been known to flash back over the surface of an oil fire
D.it is ineffective in fighting fires in high-voltage electrical equipment
A.can fit any size hose
B.converts a stream of water into a fog
C.increases the amount of water reaching the fire
D.can spray two streams of water at the same time
A.a vessel is equipped with an automatic smoke or fire detecting system
B.the cargo hatches are of steel construction
C.the cargo is of a nonflammable type
D.there is sufficient fire protection located on the main deck adjacent to the cargo hatch
A.To replace a damaged life preserver
B.For use during fire drills
C.For use during boat drills
D.At no time
A.during abandon drill
B.during fire drill
C.weekly
D.when the rig is being moved
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The collision bulkhead shall be of（）.
On a ship，watertight doors should be operated（）.
The bilge pump on a fishing vessel（）.
Regular foam can be used on all but which flammable liquid?（）
The discharge side of every fire pump must be equipped with a（）.
On a ship，when may a work vest be substituted for a required life preserver?（）
The blocking or absence of fire dampers can cause（）.
Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of（）.
The discharge from a carbon dioxide fire extinguisher should be directed（）.
Since the fire is increasing on board the vessel，the Captain orders that the ship be（）.