A.delays due to seizure of the vessel B.fire caused by fault of the carrier C.strikes or lockouts D.improper stowage
单项选择题Triethylene glycol fires may be extinguished by().
A.dry chemical B.alcohol foam C.carbon dioxide D.All of the above
单项选择题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
单项选择题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
单项选择题To prevent the spread of fire by conduction you should().
A.cool the bulkheads around the fire B.remove combustibles from direct exposure C.close all openings to the area D.shut off all electric power
单项选择题To lubricate the swivel or remove corrosion from a fire hose coupling,you should use().
A.glycerine B.graphite C.kerosene D.fresh water and soap