Question 1 of 27070
Q
Before 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
Question 1 / 270705eccef9ebacbc34ba4d46488
Question 1 of 270705eccef9ebacbc34ba4d46488

Before releasing the CO2 into the space, the alarm for a fixed CO2 system must sound for at least __________.

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Question 1 of 27070
Q

Before releasing the CO2 into the space, the alarm for a fixed CO2 system must sound for at least __________.

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šŸ” Key Concepts

ā€¢ Fixed CO2 fire-extinguishing systems and why people must evacuate before discharge ā€¢ SOLAS / 46 CFR requirements for pre-discharge alarms in machinery spaces ā€¢ The minimum time needed to safely warn and evacuate personnel before CO2 fills the space

šŸ’­ Think About

ā€¢ Think about how quickly CO2 can displace breathable air in a machinery space and why crew need a short but sufficient warning time. ā€¢ Ask yourself: is the required alarm time closer to the time youā€™d need to notice the alarm and reach an exit, or to a very long evacuation period? ā€¢ Consider what international regulations usually set as a minimum delay before agent release, not a generous maximum.

āœ… Before You Answer

ā€¢ Verify in SOLAS and/or 46 CFR (Title 46) what minimum alarm time is specified for CO2 systems protecting machinery spaces. ā€¢ Make sure you are thinking of the audible alarm time before discharge, not the total time for CO2 to fully flood the space. ā€¢ Check that the time you choose is reasonable for a quick escape from an engine roomā€”long enough to react, but not so long that the fire grows unchecked.