A.fight an electrical fireB.fight a magnesium fireC.eli……

单项选择题Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.

A.convection
B.conduction
C.radiation
D.spontaneous combustion

单项选择题Under the regulations for cargo vessels，which statement is TRUE concerning fireman’s outfits?（）

A.If a vessel carries two outfits，they may be stored in the same location
B.Each fireman's outfit shall contain a flame safety lamp of an approved type
C.Each fireman's outfit shall contain a fresh-air breathing apparatus
D.All of the above

单项选择题Under the Carriage of Goods by Sea Act of 1936，a vessel will be liable for damage to a cargo when the damage arises out of（）.

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