On a class "B" fire which portable fire extinguisher would be the LEAST desirable?()

The class of fire on which a blanketing effect is essential to extinguish the fire is

A.Class 'A'

B.Class 'B'

C.Class 'C'

D.Class 'D'

On a tank vessel, which of the following substances would be burning in a class "B" fire？

A.Oil

B.Wood

C.Rags

D.Electrical wiring

A fire involving aluminum powder would be a class _____.

A."A" fire

B."B" fire

C."C" fire

D."D" fire

A.Magnesium

B.Paper

C.Wood

D.Diesel Oil

If ignited, which of the listed materials would be a class "B" fire？

A.Magnesium

B.Paper

C.Wood

D.Diesel Oil

A.carbon dioxide

B.dry chemical

C.foam (stored-pressure type)

D.Water (cartridge-operated)

A class "B" fire would most likely occur in the _____.

A.main switchboard

B.engine room bilge

C.breathing compartment

D.electric fresh water transfer pump

A class "D" fire would be considered as burning _____.

A.wood

B.oil

C.electrical equipment

D.magnesium

Which of the listed burning materials would be described as a class "B" fire？

A.Acetylene

B.Lube oil

C.Grease

D.All of the above

A burning AC motor would be considered what class of fire？

A.Class "A"

B.Class "B"

C.Class "C"

D.Class "D"