Aqueous Film Forming Foam (AFFF), commonly known as ‘light water’, is especially suitable for fighting ____.
A.oil fires in the engine room bilges
B.class B fires in paint lockers
C.any class D fire
D.all of the above
第1题
A.Security level 1
B.Security level 2
C.Security level 3
D.Lowest safety level
第2题
A.latent heat of expansion
B.sensible heat of condensation
C.heat of compression
D.all of the above
第3题
A.open
B.close
C.remain in its position
D.flood the evaporator with refrigerant
第4题
A.lead
B.forged steel
C.alloy steel
D.aluminum alloy
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