更多"The discharge from a carbon dioxide"的相关试题:
[单项选择]Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.
A. when the remaining charge volume is less than 90 percent of the required VOLUME
B. at each inspection for certification
C. at each annual inspection
D. when the weight loss exceeds 10% of weight of charge
[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]A carbon dioxide fire extinguisher should be recharged（）.
A. at least annually
B. whenever it is below its required weight
C. only if the extinguisher has been used
D. before every safety inspection
[单项选择]A carbon dioxide fire extinguisher has been partially discharged, and should be immediately （）.
A. tagged and restowed properly in its rack
B. weighed and the charge loss recorded
C. given to the chief engineer for recharging
D. tagged "empty" and stowed separately from charged extinguishers
[单项选择]A squeeze-grip type carbon dioxide portable fire extinguisher has been partially discharged. It should be（）.
A. replaced in its proper location if weight loss is no more than 15%
B. replaced in its proper location if weight loss is no more than 25%
C. labeled empty and recharged as soon as possible
D. labeled empty and replaced in its proper location regardless of weight
[单项选择]When using carbon dioxide to fight a fire on a bulkhead，the CO2 should be applied（）.
A. first to the bottom of the flaming area，sweeping from side to side，and following the flames upward
B. in a circular motion from the middle of the bulkhead outward
C. to the top of the flaming area，sweeping from side to side，and working toward the bottom
D. in an up-and-down motion from one side of the bulkhead to the other
[单项选择]When used to fight fire，carbon dioxide（）.
A. is effective if used promptly on an oil fire
B. has a greater cooling effect than water
C. is lighter than air
D. is harmless to cargo and crew
[单项选择]The danger associated with using carbon dioxide in an enclosed space is（）.
A. frostbite
B. skin burns
C. asphyxiation
D. an explosive reaction
[单项选择]A fixed carbon dioxide extinguishing system for a machinery space，designed WITHOUT a stop valve in the line leading to the protected space，is actuated by（）.
A. one control
B. two controls
C. three controls
D. none of the above
[单项选择]Carbon dioxide的中文含义是（）。
A. 碳氢化合物
B. 碳氧化合物
C. 一氧化碳
D. 二氧化碳
[单项选择]What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
A. Effective even if ventilation is not shut down
B. Will not deteriorate in storage
C. Non-corrosive
D. Effective on electrical equipment
[单项选择]Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces，such as in a pumproom，provided that the（）.
A. persons in the space wear gas masks
B. persons in the space wear damp cloths over their mouths and nostrils
C. ventilation system is secured and all persons leave the space
D. ventilation system is kept operating
