Free NFPA CWBSP Exam Questions

Become NFPA Certified with updated CWBSP exam questions and correct answers

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Total 100 Questions | Updated On: Apr 28, 2026

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Question 1

In an existing system, the vertical clearance between a high volume low speed (HVLS) fan and a sprinkler shall be

A : 12 in. (300 mm).

B : 24 in. (600 mm).

C : 36 in. (900 mm).

D : 48 in. (1200 mm).

Answer: B

Question 2

A 4 in. (102 mm) nominal diameter Schedule 10 sprinkler main is to be supported from the structure utilizing a trapeze hanger with a span of 8 ft (2.4 m). Using Schedule 40 pipe for the trapeze hanger, what is the minimum diameter pipe that should be used?

A : 1.5 in. (40 mm)

B : 2 in. (50 mm)

C : 2.5 in. (65 mm)

D : 3 in. (75 mm)

Answer: B

Question 3

Which type of pipe does not require a special listing to use threaded fittings?

A : Schedule 5

B : Schedule 7

C : Schedule 10

D : Schedule 40

Answer: D

Question 4

What is the minimum temperature rating of ceiling sprinklers in roll paper stored at 15 ft. (4.6 m) or less?

A : 100Â°F (38Â°C)

B : 135Â°F (57Â°C)

C : 150Â°F (66â„ƒ)

D : 175Â°F (79â„ƒ)

Answer: C

Question 5

What ASTM standard covers the manufacture of chlorinated polyvinyl chloride (CPVC) pipe, allowed to be used in fire sprinkler systems?

A : ASTM A795

B : ASTM B75

C : ASTM A312

D : ASTM F442

Answer: D

Page: 1 / 20

Total 100 Questions | Updated On: Apr 28, 2026

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