单项选择题
A.Any compartment containing explosives B.Any compartment adjacent to one containing explosives C.Enclosed spaces which are specially suitable for vehicles D.All of the above
Which precaution should be taken when testing a line th...
单项选择题Which precaution should be taken when testing a line throwing gun?（）
A.Never remove the line from the rocket B.Fire it at an angle of approximately 90 degrees to the horizon C.Wear asbestos gloves D.All of the above
Which portable fire extinguisher should be used on a cl...
单项选择题Which portable fire extinguisher should be used on a class C fire on board a vessel?（）
A.Carbon dioxide B.Water (stored pressure) C.Foam D.Carbon tetrachloride
Which portable fire extinguisher is normally recharged ...
单项选择题Which portable fire extinguisher is normally recharged in a shore facility?（）
A.Dry chemical (cartridge-operated) B.Water (cartridge-operated) C.Water (pump tank) D.Carbon dioxide
