單項(xiàng)選擇題Which of the listed classes of fire would most likely occur in the engine room of a vessel?()

A.Classes A and B
B.Classes B and C
C.Classes C and D
D.Classes A and D


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1.單項(xiàng)選擇題If ignited, which of the listed materials would be a class "B" fire?()

A.Magnesium
B.Paper
C.Wood
D.Diesel Oil

2.單項(xiàng)選擇題Which statement concerning the collection of fresh water is FALSE?()

A.Fresh water may be obtained from fish
B.lifeboat covers or canopies should be washed with rain before drinking water is collected
C.Fresh water may be collected from condensation inside the life-raft
D.Freshwater cannot be produced from standing seawater

3.單項(xiàng)選擇題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

4.單項(xiàng)選擇題Which of the listed classes of fire is considered as one involving electrical equipment?()

A.Class "A"
B.Class "B"
C.Class "C"
D.Class "D"

5.單項(xiàng)選擇題Besides heat, fuel, and oxygen, which of the following is necessary for a fire to exist?()

A.Chain reaction
B.Thermal action
C.Chemical occlusion
D.Pyrotechnical reaction

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