The spread of fire is prevented by（）.

单项选择题The spread of fire is NOT prevented by（）.

A.shutting off the oxygen supply
B.cooling surfaces adjacent to the fire
C.removing combustibles from the endangered area
D.removing smoke and toxic gases by ensuring adequate ventilation

单项选择题The remote control for a fixed fire extinguishing system should be（）.

A.painted red and labeled
B.concealed from the crew
C.protected by plexiglass
D.padlocked

单项选择题The record of tests and inspection of fire fighting equipment on board a ship must include（）.

A.the name of the person conducting the test
B.the weight of the charge
C.recommendations for the next test
D.All of the above

单项选择题The primary method by which water spray puts out fires is by（）.

A.removing the oxygen
B.cooling the fire below the ignition temperature
C.removing combustible material
D.diluting combustible vapors

单项选择题The primary function(s) of an automatic sprinkler system is(are) to（）.

A.extinguish the fire which triggers it
B.limit the spread of fire and control the amount of heat produced
C.protect people in the areas which have sprinkler heads
D.alert the crew to the fire