更多"CO2 cylinders，which protect the sma"的相关试题:
[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]Which bearing will carry the load on two small points diametrically opposite to each other?（）
A. Needle
B. Tapered roller
C. Roller
D. Ball
[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]On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）
A. Clove hitch
B. Figure-eight knot
C. Fisherman's bend
D. Overhand knot
[单项选择]Which space cannot be deducted from gross tonnage when calculating net tonnage（）.
A. Crew messroom
B. Forepeak ballast tank
C. Master's cabin
D. Chain locker
[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
[单项选择]Air compressors are NOT permitted in which space(s) on a tank barge carrying grade A cargo?（）
A. A cargo handling room
B. A space in which cargo hose is stored
C. An enclosed space containing cargo piping
D. All of the above
[单项选择]Which of the following machinery space operations is required to be logged in the Oil Record Book?（）
A. Ballasting or cleaning of fuel oil tanks
B. Shifting suction of main fuel pump to reserve fuel oil tank
C. Changing out sprayer plates to adjust for steam demand
D. Daily inspection of engine room bilges
[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。
[单项选择]Preferred channel marks are aids to navigation which all following marks other than（）．
A. channel junctions
B. bifurcations
C. fishing traps
D. wrecks or obstructions
[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％
[填空题]CO2气体保护焊的气孔有CO2气孔、H2气孔和（）气孔等。
