Question 30 of 30
In a fixed carbon dioxide extinguishing system for a machinery space, designed WITH a stop valve in the line leading to the protected space, the flow of CO2 is established by actuating:
A
three controls
B
two controls
C
one control
D
none of the above
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Answer & Explanation
The correct answer is Option B: two controls.
When a fixed CO2 system for a machinery space includes a stop valve in the line to the protected space, its activation requires two controls. One control operates the stop valve, and the second control releases the CO2 from the cylinders.