A class "D" fire would be considered as burning _____.
A.wood
B.oil
C.electrical equipment
D.magnesium
第2题
A fire involving aluminum powder would be a class _____.
A."A" fire
B."B" fire
C."C" fire
D."D" fire
第3题
A burning AC motor would be considered what class of fire?
A.Class "A"
B.Class "B"
C.Class "C"
D.Class "D"
第4题
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
第5题
A class D fire would be considered as burning ().
A.oil
B.electrical equipment
C.magnesium
第6题
If ignited, which of the listed materials would be a class "B" fire?
A.Magnesium
B.Paper
C.Wood
D.Diesel Oil
第7题
On a class "B" fire which portable fire extinguisher would be the LEAST desirable?()
A.Carbon dioxide
B.Water (stored pressure)
C.Dry chemical
D.Foam
第8题
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
第9题
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
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