A.the mimimum fire extinguishing equipment，lifejackets，survival and rescue craft she must carry
B.the name of the managing operator
C.any special conditions or restrictions on her operation
D.All the above
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A.pressure release
B.backfire flame arrestor
C.automatic shut off
D.flow valve
A.at least annually
B.whenever it is below its required weight
C.only if the extinguisher has been used
D.before every safety inspection
A.a continuous ringing for 10 seconds
B.one short ring followed by one long ring
C.two long rings of at least 20 seconds
D.a continuous ringing until the fire is extinguished
最新試題
Convection spreads a fire by（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
CO2 extinguishes a fire by（）.
A fire starting by spontaneous combustion can be expected in which condition?（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
Each fire hydrant must have at least one spanner and at least one（）.
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.
Before using a fixed CO2 system to fight an engine room fire，you must（）.
Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
Controls for a fixed carbon dioxide system shall be mounted（）.