更多"A fixed CO2 system on a ship with a"的相关试题:
[单项选择]Your vessel is equipped with a fixed CO2 system and a fire main system. In the event of an electrical fire in the engine room what is the correct procedure for fighting the fire?（）
A. Use the CO2 system and evacuate the engine room
B. Use the fire main system and evacuate the engine room
C. Evacuate the engine room and use the CO2 system
D. Evacuate the engine room and use the fire main system
[单项选择]Before using a fixed CO2 system to fight an engine room fire，you must（）.
A. secure the engine room ventilation
B. secure the machinery in the engine room
C. evacuate all engine room personnel
D. All of the above
[单项选择]While you are working in a space，the fixed CO2 system is accidentally activated．You should（）.
A. Secure the applicators to preserve the charge in the cylinders
B. Continue with your work as there is nothing you can do to stop the flow of CO2
C. Retreat to fresh air and ventilate the compartment before returning
D. Make sure all doors and vents are secured
[单项选择]Fixed CO2 systems would not be used on crew’s quarters or（）.
A. the paint locker
B. spaces open to the atmosphere
C. cargo holds
D. the engine room
[单项选择]Actuating the CO2 fixed system causes the shutdown of the（）.
A. fuel supply
B. exhaust ventilation
C. supply and exhaust ventilation
D. mechanical and natural ventilation
[单项选择]After using a CO2 extinguisher on a ship，it should be（）.
A. put back in service if some CO2 remains
B. hydrostatically tested
C. retagged
D. recharged
[单项选择]A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.
A. used at the earliest opportunity
B. hydro-tested
C. recharged
D. weighed again in one month
[单项选择]If a fixed foam firefighting system on a ship is not of the premix type，a sample of the foam liquid must be tested by（）.
A. a Coast Guard inspection officer
B. the safety man aboard the unit
C. the designated person in charge of the unit
D. the manufacturer or his authorized representative
[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
[填空题]CO2气体保护焊分为（）CO2气体保护焊和（）CO2气体保护焊两种。
[单项选择]光合作用吸收CO2与呼吸及光呼吸作用释放的CO2达到动态平衡时，外界的CO2浓度称为（）。
A. CO2饱和点
B. O2饱和点
C. CO2补偿点
[多项选择]化工投料时CO2量为22000Nm3／h，CO2浓度为89.9％，系统H2O／CO2（mol／m01）为0.375，则投料时的加水量（水密度为996kg／m3）为（）。
A. 1.65kg/s
B. 4.04kg／s
C. 5.98m3／h
D. 14.6m3／h
[单项选择]海洋CO2储库比大气CO2储库（），海洋碳储库的各种微小变化可能对大气CO2产生（）的影响。
A. 小得多，很小
B. 小得多，很大
C. 大得多，很小
D. 大得多，很大
[判断题]CO2气瓶灌入的是液态CO2，在室温下，瓶内剩余空间被汽化的CO2充满，饱和压力达到20MPa以上。
[判断题]CO2焊用的CO2气体纯度不应小于95%。
[单项选择]CO2气体保护焊用CO2气体的纯度不得低于（）。
A. 99.5％
B. 99.6％
C. 99.1％
D. 99.99％
