更多"You can determine that a C02 fire e"的相关试题:
[单项选择]To determine if a C02 fire extinguisher is fully charged, you would（）.
A. operate the trigger valve
B. weigh the extinguisher
C. test with a pressure gauge
D. read the date of last test
[单项选择]To determine if a CO2 fire extinguisher is fully charged，you would（）.
A. Operate the trigger valve
B. Weigh the extinguisher
C. Test with a pressure gauge
D. Read the date of last test
[单项选择]How do you operate a portable C02 fire extinguisher?（）.
A. Point the horn down
B. Turn cylinder upside-down
C. Break the rupture disc
D. Pull pin, squeeze grip
[单项选择]After extinguishing a fire with C02,it is availabe to（）.
A. use all CO2 available to cool the surronding area
B. stand by with water or other agents
C. thoroughly ventilate the space of CO2
D. jettison all buring materials
[单项选择]The blocking or absence of fire dampers can cause（）.
A. the accumulation of explosive gases
B. faster cooling of the fire
C. the fire to spread through the ventilation system
D. fixed foam systems to be ineffective
[单项选择]Blocking open or removing fire dampers can cause（）.
A. fixed foam systems to be ineffective
B. faster cooling of the fire
C. the accumulation of explosive gases
D. the fire to spread through the ventilation system
[单项选择]C02 extinguishes a fire by（）.
A. cooling
B. smothering
C. chemical action
D. All of the above
[单项选择]In order to discharge a C02 portable fire extinguisher , the operator must first（）.
A. invert the CO extinguisher
B. squeeze the two trigger handles together
C. remove the locking pin
D. open the discharge valve
[单项选择]You will extinguish a fire when you remove（）.
A. nitrogen
B. oxygen
C. sodium
D. carbon dioxide
[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]A fire can be extinguished by removing （）.
A. the heat
B. the fuel
C. the oxygen
D. any of the above
[单项选择]（）you work, the more you can harvest.
A. Hard
B. Harder
C. The harder
D. The hardest
[单项选择]You can take as many as you like because these handouts are free of（）
A. fare
B. charge
C. money
D. pay
[单项选择]A fire starts on you vessel while refueling. You should first（）.
A. stop the ventilation
B. sound the general alarm
C. determine the source of the fire
D. attempt to extinguish the fire
[单项选择]If you learn to read the signs, you can tell whether what a person says is what he really means, or whether, like the man whose stomach does not move when he laughs, he is trying to deceive you.（）
A. 如果你学会理解这些姿势，你就会分辨出一个人说的是否是他真正的意思，或者他是否像那种“笑里藏刀”的人在试图蒙蔽你。
B. 如果你学会理解这些姿势，你就会分辨出一个人是否口是心非，是否像那种“笑里藏刀”的人试图蒙蔽你。
C. 如果你学会理解这些姿势，你就会分辨出一个人所说的话是否是他真正要表达的东西，是否是那种“笑里藏刀”的人试图蒙蔽你。
[单项选择]When fighting an electrical fire, you should first （）.
A. stop ventilation to the area
B. stop the vessel
C. secure electricity to the circuit
D. apply CO2 to the fire
[单项选择]If you（）your work, you can go there first.
A. will finish
B. finished
C. finishing
D. have finished
[单项选择]If you（）stop smoking, you can only expect to have a bad cough.
A. won’t
B. wouldn’t
C. don’t
D. can’t
[单项选择]You can't drive a car unless you hold a driving（）
A. permission
B. ticket
C. pass
D. license
