preventing oxygen from reaching the burning material
cooling the burning material below its ignition temperature
using the extinguishing agent to make the burning material fire-resistant
using the extinguishing agent to absorb the heat
第1题:
A fire in a pile of dunnage would be classified as a _____.
A.class A
B.class B
C.class C
D.class D
第2题:
A large oil fire on the deck of a ship can be fought most effectively with ______.
A.dry chemical
B.foam
C.high-velocity fog
D.water (cartridge-operated)、
第3题:
Which of the following statements is true?
A. The author's father built a bonfire on VE Day.
B. The author's father had fought in the First World War.
C. The author's father had fought in the Second World War.
D. The author's father threw two chairs on the fire to keep it going.
第4题:
dry chemical
foam
high-velocity fog
water
第5题:
diesel oil
magnesium
dunnage
electrical insulation
第6题:
A fire involving trash and paper waste would be classified as a ______.
A.class A
B.class B
C.class C
D.class D
第7题:
All portable fire extinguishers must be capable of being ______.
A.carried by hand to a fire
B.carried or rolled to a fire
C.recharged in the field
D.used on class “B” fire
第8题:
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'
第9题:
main switchboard
engine room bilge
breathing compartment
electric fresh water transfer pump
第10题:
The fire pump
Exposed hard piping
The hydrant valve
The fire hose