更多"An extinguishing agent which effect"的相关试题:
[单项选择]Carbon dioxide as a fire fighting agent has which advantage over other agents? ()
A. It causes minimal damage
B. It is safer for personnel
C. It is cheaper
D. It is most effective on a per unit basis
[单项选择]Which extinguishing agent is effective in combating an isoprene fire?()
A. Dry chemicals
B. CO2
C. Foam
D. All the above
[单项选择]Which extinguishing agent will cool down a heated bulkhead in the least amount of time?()
A. Water stream
B. Water fog or apray
C. Steam
D. Dry chemical
[单项选择]Which extinguishing agent is recommended in the Chemical Data Guide for use on a carbon disulfide fire?()
A. Alcohol foam
B. Dry chemical
C. Chemical foam
D. Water fog
[单项选择]Which extinguishing agent is NOT recommended in the Chemical Data Guide for use on a cyclohexane fire?()
A. Foam
B. Carbon dioxide
C. Dry chemical
D. Water fog
[单项选择]Which fire extinguishing agent has the greatest capacity for absorbing heat?()
A. Water
B. Foam
C. Dry chemical
D. Carbon Dioxide
[单项选择]Which fire fighting agent has the greatest capacity for absorbing heat?()
A. water
B. dry chemical
C. foam
D. CO2
[单项选择]Which extinguishing agent is most effective on a mattress fire?()
A. CO2
B. Foam
C. Dry Chemical
D. Water
[单项选择]Which fire extinguishing agent can NOT be used on an ethylenediamine?()
A. Water foam
B. Dry chemical powder
C. Water fog
D. Alcohol foam
[单项选择]Which extinguishing agent is the best for use on electrical fires?()
A. Foam
B. CO2
C. Dry chemical
D. Water fog
[单项选择]Which extinguishing agent is best for use on a magnesium fire?()
A. Water
B. Sand
C. CO2
D. Dry chemical
[单项选择]What occurs when rising air cools the dew point?()
A. advection fog forms
B. humidity decrease
C. wind increase
D. Cloud form
[单项选择]两缸同时点火的DIL点火系统曲轴每转()转每缸点火一次。
A. 1
B. 2
C. 3
D. 4
[单项选择]Which IOS command would you use to find out which networks are routed by a particular OSPF process()
A. show ip ospf
B. show ip route
C. show ip protocols
D. show ip ospf database
E. None of the other alternatives apply
[单项选择]The preferred agent used in fighting a helicopter crash fire is().
A. CO2
B. dry chemical
C. water
D. foam
[单项选择]Water is a very effective fire extinguishing agent because it()
A. will remove all the toxic fumes from the air
B. has the greatest cooling ability
C. will leave no harmful residue
D. completely removes combustible vapors from the air