更多"A fixed carbon dioxide extinguishin"的相关试题:
[单项选择]Controls for a fixed carbon dioxide system shall be mounted().
A. directly outside the space protected by the system
B. as near the gas cylinders as possible
C. in the pilothouse
D. on the main deck near the bow
[单项选择]Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to().
A. flashing point
B. combustion point
C. auto-ignition point
D. lower explosive limit
[单项选择]The supply of carbon dioxide used in the fixed extinguishing system aboard a cargo vessel MUST be at least sufficient for().
A. all the spaces of a vessel
B. all cargo spaces
C. the engine room and largest cargo space
D. the space requiring the largest amount
[单项选择]On a ship,a fixed carbon dioxide or other approved system must be installed().
A. where oil or chemical drums are stored
B. in all battery storage locations
C. in paint lockers
D. in all of the above locations
[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]A branch line valve of a fire extinguishing system on a ship must be marked with the().
A. maximum pressure allowed at that branch
B. name of the space or spaces which it serves
C. date of the last maintenance inspection
D. pressure needed to maintain an effective stream at that point
[单项选择]The remote control for a fixed fire extinguishing system should be().
A. painted red and labeled
B. concealed from the crew
C. protected by plexiglass
D. padlocked
[单项选择]The discharge from a carbon dioxide fire extinguisher should be directed().
A. at the base of the flames
B. at the center of the flames
C. to the lee side of the flames
D. over the tops of the flames
[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]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 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]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]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