NFPA NFPA 13 Sprinkler Systems 3

Question 1

Under NFPA 13, how far must a sprinkler deflector be positioned below a smooth flat ceiling for a standard pendent sprinkler?

Accepted Answer

1 to 12 inches

Answer

1 to 4 inches

Answer

2 to 6 inches

Answer

4 to 8 inches

Question 2

What is the minimum required flow pressure at the most remote sprinkler in an NFPA 13 light hazard system?

Accepted Answer

10 psi

Answer

5 psi

Answer

7 psi

Answer

15 psi

Question 3

According to NFPA 13, which component must be provided at the base of each sprinkler riser to facilitate system testing and maintenance?

Accepted Answer

Butterfly valve with tamper switch

Answer

Check valve

Answer

Inspector's test connection

Answer

Pressure gauge

Question 4

Under NFPA 13, what is required when a sprinkler system is installed in a building with a combustible concealed space?

Accepted Answer

Sprinklers must be installed in the concealed space

Answer

No special requirements

Answer

Only smoke detectors are required

Answer

The space must be filled with fire retardant foam

Question 5

What is the maximum permitted distance between sprinklers along a branch line under NFPA 13 for light hazard occupancies?

Accepted Answer

15 feet

Answer

10 feet

Answer

20 feet

Answer

25 feet

Question 6

Under NFPA 13, what type of fitting is required when changing direction on a sprinkler branch line to ensure proper drainage?

Accepted Answer

Drop nipple with a drip leg

Answer

90-degree elbow

Answer

45-degree elbow

Answer

Drain plug