A.lifejacket
B.SCBA
C.lifeboat
D.torch
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A.Life jackets
B.Survival at Sea manual
C.lifeboat
D.torch
A.will remove all the toxic fumes from the air
B.has the greatest cooling ability
C.will leave no harmful residue
D.completely removes combustible vapors from the air
A.soda acid
B.foam
C.CO2
D.sand
A.stopping the flow of gas
B.reducing the chemical chain reaction
C.increasing the oxygen supply
D.cooling below the autoignition point
A.burner valve
B.root valve
C.quick closing valve
D.oil return valve
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