12. Which of the following statements is true concerning the control activators, i.e., pull-handles, push- buttons or levers, for a space protected by a CO2 fixed fire extinguishing system?

Two control activators are required when a stop valve is installed in the main discharge line to a space.
Only one control activator is required for discharge piping systems designed without a stop valve.
An alarm must sound for at least 20 seconds before CO2 is released into a space that is likely to be occupied.
All of the above

Comments (0)

There are no comments at the moment. If you found an error or think question is incorrect, tell everyone about it