Question 3739Deck General70% to pass
Before releasing the CO2 into the space, the alarm for a fixed CO2 system must sound for at least _______________.
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.
Related Questions
#3737 On offshore drilling units, all lifeboats are required to be marked with the _______________.#3738 On offshore drilling units fitted with fixed CO2 systems, the system must withstand a bursting pressure of at least _______________.#3740 On offshore drilling units fitted with CO2 systems, each space that contains a cylinder must be vented and designed to keep temperature in the space at not more than _______________.#3741 Operation of the valve control release on a fixed CO2 system must immediately _______________. #3742 The discharge side of every fire pump must be equipped with a _______________.