NFPA NFPA 13 Sprinkler Systems

Question 1

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

Accepted Answer

30 minutes

Answer

15 minutes

Answer

60 minutes

Answer

90 minutes

Question 2

According to NFPA 13, what is the maximum spacing allowed between standard spray upright or pendent sprinklers in light hazard occupancies?

Accepted Answer

200 sq ft

Answer

100 sq ft

Answer

130 sq ft

Answer

225 sq ft

Question 3

Under NFPA 13, what type of sprinkler system uses air pressure to hold water back until a sprinkler activates?

Accepted Answer

Dry pipe system

Answer

Wet pipe system

Answer

Deluge system

Answer

Preaction system

Question 4

What is the minimum clearance required between the deflector of a sprinkler head and the top of storage under NFPA 13?

Accepted Answer

18 inches

Answer

6 inches

Answer

12 inches

Answer

36 inches

Question 5

According to NFPA 13, which occupancy classification applies to offices, schools, and churches?

Accepted Answer

Light hazard

Answer

Extra hazard

Answer

Ordinary hazard Group 1

Answer

Ordinary hazard Group 2

Question 6

Under NFPA 13, what is the maximum distance allowed between a sprinkler and a wall or obstruction in a light hazard occupancy?

Accepted Answer

7.5 feet

Answer

4 feet

Answer

9 feet

Answer

12 feet