单选题A class "C" fire is burning （）.A diesel oilB magnesiumC dunnageD electrical insulation

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'

A fire involving trash and paper waste would be classified as a ______.

A.class A

B.class B

C.class C

D.class D

A.be heated

B.is heated

C.would be heated

D.to heat

A fire in a pile of dunnage would be classified as a _____.

A.class A

B.class B

C.class C

D.class D

Convection spreads a fire by ______.

A.heated gases flowing through ventilation systems

B.the transfer of heat across an unobstructed space

C.burning liquids flowing into another space

D.transmitting the heat of a fire through the ship’s metal

The most effective way to apply a foam stream if the fire is on deck or is a runing fire, is to direct the stream ______.

A.onto the surface of the burning liquid

B.ahead of the burning liquid and bounce it on the fire

C.at the base of the burning liquid in a sweeping motion

D.just above the surface of the burning liquid