A.fuel oil
B.wood
C.celluloid
D.electrical insulation
您可能感興趣的試卷
你可能感興趣的試題
A.preventing oxygen from reaching the burning material
B.cooling the burning material below its ignition temperature
C.using the extinguishing agent to make the burning material fire-resistant
D.using the extinguishing agent to absorb the heat
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
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（）.
During a fire drill on a ship，what action is required?（）
A fire must be ventilated（）.
If，during helicopter refueling operations，fuel is spilled on clothing，the person should first（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
During a training exercise a submarine indicating that a torpedo has been fired will send up smoke from a float. The smoke’s color will be（）.
Automatic fire dampers in ventilation systems are operated by a（）.
On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
Control of fire on a ship should be addressed（）.
Dry chemical fire extinguishers are effective on which type(s) of fire?（）