單項選擇題

A branch line valve of a fire extinguishing system on a ship must be marked with the（）.

A.maximum pressure allowed at that branch
B.name of the space or spaces which it serves
C.date of the last maintenance inspection
D.pressure needed to maintain an effective stream at that point

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單項選擇題

（），as the chemical extinguisher agent，should be used for an electric fire.

A.dry chemical or foam
B.foam or soda acid
C.carbon dioxide or foam
D.carbon dioxide or dry chemical

單項選擇題

The danger of a charged hose left unattended on deck with the nozzle open is（）.

A.the hose could burst
B.the nozzle end will whip about causing damage or injury
C.water damage to vessel's cargo or structure
D.personnel might trip over the hose

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A branch line valve of a fire extinguishing system on a ship must be marked with the（）.

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（），as the chemical extinguisher agent，should be used for an electric fire.

The danger of a charged hose left unattended on deck with the nozzle open is（）.

（），as the chemical extinguisher agent，should be used for an electric fire.