单项选择题

Convection spreads a fire by（）.……

Convection spreads a fire by（）.

A.heated gases flowing through ventilation systems
B.the transfer of heat across an unobstructed space
C.burning liquids flowing into another space
D.transmitting the heat of a fire through the ship's metal

<上一题目录下一题>

热门试题

单项选择题Controls for a fixed carbon dioxide system shall be mounted（）.

A.directly outside the space protected by the system
B.as near the gas cylinders as possible
C.in the pilothouse
D.on the main deck near the bow

单项选择题Control of flooding should be addressed（）.

A.first
B.following control of fire
C.following restoration of vital services
D.only if a threat exists

单项选择题Control of fire on a ship should be addressed（）.

A.immediately after restoring vital services
B.immediately
C.following control of flooding
D.following establishment of fire boundaries

单项选择题Combustible gas indicators measure the presence of combustible gas as a percentage of the（）.

A.flash point
B.upper explosive limit
C.lower explosive limit
D.fire point

单项选择题CO2 extinguishes a fire by（）.

A.cooling
B.smothering
C.chemical action
D.All of the above