NFPA NFPA 13 Sprinkler Systems 2

Question 1

What color code indicates a sprinkler with a temperature rating of 135–170°F (57–77°C) under NFPA 13?

Accepted Answer

Uncolored/Black

Answer

White

Answer

Blue

Answer

Red

Question 2

Under NFPA 13, a deluge system differs from a preaction system in that a deluge system has:

Accepted Answer

Open sprinkler heads throughout

Answer

Closed sprinkler heads throughout

Answer

Air-pressurized piping

Answer

A single detection zone

Question 3

According to NFPA 13, what is the required minimum pipe size for a single sprinkler branch line?

Accepted Answer

¾ inch

Answer

½ inch

Answer

1 inch

Answer

1¼ inch

Question 4

Which NFPA 13 system type uses a pneumatic or electric detection system to open the valve before a sprinkler fuses?

Accepted Answer

Preaction

Answer

Wet pipe

Answer

Dry pipe

Answer

Deluge

Question 5

Under NFPA 13, what hazard classification applies to auto showrooms, bakeries, and laundries?

Accepted Answer

Ordinary hazard Group 1

Answer

Light hazard

Answer

Ordinary hazard Group 2

Answer

Extra hazard Group 1

Question 6

According to NFPA 13, what is the maximum area of sprinkler operation (design area) for a light hazard hydraulically designed system?

Accepted Answer

1,500 sq ft

Answer

1,000 sq ft

Answer

2,000 sq ft

Answer

3,000 sq ft