你可能感興趣的試題

Traditionally，the signal for fire aboard ship is（）.

A.more than 6 short blasts and 1 long blast on the whistle，and the same signal on the general alarm
B.continuous sounding of the ship's whistle and the general alarm for at least 10 seconds
C.1 short blast on the whistle
D.alternating short and long blasts on the ship's whistle

單項(xiàng)選擇題

To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.

A.replace the gasket in the male coupling
B.reduce fire pump pressure
C.replace the gasket in the female coupling
D.rethread the male coupling

Triethylene glycol fires may be extinguished by（）.

你可能感興趣的試題

Traditionally，the signal for fire aboard ship is（）.

To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.

Traditionally，the signal for fire aboard ship is（）.

To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.