单项选择题
A fixed CO2 system on a ship with a capacity of over 300 lbs (136 kilograms) CO2 which protects spaces other than tanks must have（）.
A.two or more releasing stations
B.automatic release in event of a fire
C.an audible alarm and time delay
D.an audible and visible alarm
点击查看答案&解析
相关考题
-
单项选择题
A fire starts on your vessel while refueling. You should FIRST（）.
A.stop the ventilation
B.sound the general alarm
C.determine the source of the fire
D.attempt to extinguish the fire -
单项选择题
A combination or all-purpose nozzle produces（）.
A.low-velocity fog only
B.a solid stream only
C.a solid stream and foam
D.a solid stream and fog -
单项选择题
A CO2 portable extinguisher is annually checked by（）.
A.reading the gage pressure
B.weighing the extinguisher
C.discharging a small amount of CO2
D.seeing if the seal has been broken
