Question

1. The most common means of actuating a preaction system is smoke-sensing devices. True or false?

2. The water supply valve on a preaction system is activated by eight detector independent of the sprinkler system heads. True or false?

3. The air exhaust valve on the combine dry-pipe and preaction system feed main is actuated by the fusing of a sprinkler. True or false?

4. Low air pressure in the preaction system piping serves to trip the preaction valve. true or false?

5. The installation of both open sprinklers and close sprinklers in the same system is not permitted. True or false?

The installation of both open sprinklers and close sprinklers in the same system is not permitted. True or false?

6. Deluge systems can be installed using extra hazard pipe schedule pipe sizing. True or false?

Answer 1

1. The most common means of actuating a preaction system is smoke-sensing devices.

Answer- True

2. The water supply valve on a preaction system is activated by eight detector independent of the sprinkler system heads.

Answer- False

3. The air exhaust valve on the combine dry-pipe and preaction system feed main is actuated by the fusing of a sprinkler.

Answer- True

4. Low air pressure in the preaction system piping serves to trip the preaction valve.

Answer- True

5. The installation of both open sprinklers and close sprinklers in the same system is not permitted.

Answer- True

6. Deluge systems can be installed using extra hazard pipe schedule pipe sizing.

Answer- True