单项选择题
A.mattress fires B.oil fires C.wood fires D.All of the above
Portable fire extinguishers must be provided for the ca...
单项选择题Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge（）.
A.only when fully loaded B.if one or more tanks are full C.when transferring cargo D.only when the barge is being towed
Portable CO2 fire extinguishers should NOT be used to i...
单项选择题Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of（）.
A.the CO2 being inhaled by personnel B.reflash of burning liquids C.vapor condensation on the extinguisher D.the discharge causing a static spark
Overhauling a fire in the living quarters on a vessel m...
单项选择题Overhauling a fire in the living quarters on a vessel must include（）.
A.opening dead spaces to check for heat or fire B.evacuation of the vessel C.sounding the all clear signal D.operation of the emergency generator
