Question 3739 Deck General
70% to passBefore releasing the CO2 into the space, the alarm for a fixed CO2 system must sound for at least _______________.
A
20 seconds
B
30 seconds
C
40 seconds
D
60 seconds
AI Explanation
The correct answer is A) 20 seconds. According to the regulations governing fixed CO2 fire extinguishing systems, the alarm must sound for at least 20 seconds before the CO2 is released into the protected space. This provides adequate time for personnel to evacuate the area before the CO2 is discharged, which can displace oxygen and pose a suffocation hazard. The other options are incorrect because 30 seconds, 40 seconds, and 60 seconds are not the required minimum time for the alarm to sound before CO2 release, as specified in the regulations.
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