单项选择题
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
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相关考题
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单项选择题
After each reading of an oxygen indicator，the instrument should be purged with（）.
A.CO2
B.fresh air
C.the tested compartment's air
D.water -
单项选择题
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 -
单项选择题
A safety outlet is provided on the CO2 discharge piping to prevent（）.
A.over pressurization of the space being flooded
B.rupture of cylinder due to temperature increase
C.over pressurization of the CO2 discharge piping
D.flooding of a space where personnel are present
