單項(xiàng)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

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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

單項(xiàng)選擇題

No outlet on a fire hydrant may point above the horizontal in order to（）.

A.avoid kinking the hose
B.avoid personal injury during connection
C.make connecting easier
D.prevent spray on electrical equipment

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

你可能感興趣的試題

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

No outlet on a fire hydrant may point above the horizontal in order to（）.

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