CFI Sprinkler System Requirements 3

Question 1

What NFPA standard governs the inspection, testing, and maintenance of water-based fire protection systems?

Accepted Answer

NFPA 25

Answer

NFPA 25 is the Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems.

Question 2

A concealed sprinkler head has a cover plate that falls away at what approximate temperature?

Accepted Answer

135°F

Answer

Concealed sprinkler cover plates are designed to release at approximately 135°F, allowing the sprinkler to operate at its rated temperature.

Question 3

In a pre-action sprinkler system, water enters the piping only when:

Accepted Answer

Both a detection device activates AND a sprinkler head fuses

Answer

A double-interlock pre-action system requires both a detection device activation and a sprinkler head fusing before water is discharged.

Question 4

What is the minimum required water supply duration for a light hazard sprinkler system per NFPA 13?

Accepted Answer

60 minutes

Answer

NFPA 13 requires light hazard sprinkler systems to have a water supply capable of meeting demand for a minimum of 30 minutes.

Question 5

What component prevents backflow of water from the sprinkler system into the potable water supply?

Accepted Answer

Backflow preventer

Answer

A backflow preventer is required to stop contaminated sprinkler system water from flowing back into the potable water supply.

(CFI) Certified Fire Inspector Practice Test