單項選擇題When towing astern what equipment should be stowed ready for use near the towline?()

A.First aid kit
B.Axe or cutting torch
C.Fire extinguisher
D.Chafing gear


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1.單項選擇題When should a fire be ventilated?()

A.When attacking the fire directly
B.When using a steam smothering system
C.When using the fixed CO2 system
D.All of the above

2.單項選擇題When possible,what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?()

A.Blanket the cargo spill with foam
B.Prevent the spread of fire with a foam dam
C.Apply CO2 on burning fuel at its source
D.Shut off the transfer of cargo

3.單項選擇題When possible,what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?()

A.Secure all engine room doors,hatches,and vents
B.Close the fuel line valve
C.Check the spread of the fire with foam
D.Cast the barge off the wharf

4.單項選擇題When must a dry chemical fire extinguisher be recharged?()

A.After each use
B.When the air temperature exceeds 90°F
C.Every 6 months
D.Every 12 months

5.單項選擇題When loading or discharging dry mud or cement,crew members should use facial respirator masks and().

A.goggles
B.ear plugs
C.soft-soled boots
D.fireman's outfit