NFPA NFPA-CWBSP Online Practice Questions and Exam Preparation

NFPA NFPA-CWBSP Online Questions & Answers

• Question 1:

  What is the minimum calculated design area for a dry system protecting a light hazard attic space with a roof slope exceeding a rise of 2 units in a run of 12 units and a height at the peak of 10 ft (3 m) above the bottom of the truss using quick response sprinklers?

  A. 1,521 ft2 (141.3 m2)
  B. 1,170 ft2 (108.7 m2)
  C. 1,950 ft2 (181.1 m2)
  D. 2,535 ft2 (235.5 m2)
  B. 1,170 ft2 (108.7 m2)

• Question 2:

  The distance between a hanger and the center line of an upright sprinkler shall be no less than

  A. 3 in. (75 mm).
  B. 4 in. (100 mm).
  C. 5 in.(125 mm).
  D. 6 in. (150 mm).
  A. 3 in. (75 mm).

• Question 3:

  After reviewing an existing sprinkler system, it was determined that sprinklers were installed using NFPA 13 using the Ordinary Hazard Pipe Schedule method. The highest elevation of sprinklers is 28 ft (8.53m) and the system is fully monitored as specified by NFPA 13. What is the minimum pressure and flow required?

  A. 500 gpm at 27 psi (1,900 L/min at 1.86 bar)
  B. 850 gpm at 27 psi (3,200 L/min at 1.86 bar)
  C. 500 gpm at 32 psi (1,900 L/min at 2.2 bar)
  D. 850 gpm at 32 psi (3,200 L/min at 2.2 bar)
  A. 500 gpm at 27 psi (1,900 L/min at 1.86 bar)

• Question 4:

  Using the Hazen-Williams formula, determine the friction loss in 150 ft (45.7 m) of 1 in. (25 mm) black steel schedule 40 pipe, flowing 30 gpm (115 lpm) in a wet system.

  A. 27.5 psi (1.89 bar)
  B. 41.3 psi (2.93 bar)
  C. 52.2 psi (3.6 bar)
  D. 57.9 psi (3.99 bar)
  A. 27.5 psi (1.89 bar)

• Question 5:

  A kitchen in a restaurant encompasses an area of just over 700 ft2 (65 m2) with 2-hour fire rated walls. Does this meet the definition of a small room?

  A. Yes, as the limit is 800 ft2 (74 m2).
  B. No, 700 ft2 (65 m2) is too large.
  C. Yes, as the walls are 1-hour fire rated.
  D. No, small rooms are only of light hazard occupancy.
  B. No, 700 ft2 (65 m2) is too large.

• Question 6:

  What is the equivalent length of a 45?elbow of 6 in (150 mm) Schedule 10 pipe?

  A. 8.8 ft (2.7 m)
  B. 9.8 ft (3.0 m)
  C. 11.8 ft (3.6 m)
  D. 12.8 ft (3.9 m)
  C. 11.8 ft (3.6 m)

• Question 7:

  The FPE has indicated that a vertical opening shall be protected by closely spaced sprinklers in combination with a draft stop installed per code. The sprinklers will be spaced 6 ft (1.83 m) on center. What is the minimum gpm discharge required per sprinkler head?

  A. 10 gpm (38 lpm)
  B. 15 gpm (57 lpm)
  C. 18 gpm (68 lpm)
  D. 20 gpm (76 lpm)
  B. 15 gpm (57 lpm)

• Question 8:

  When field acceptance testing a fire pump with a variable speed pressure limiting control, the pump shall be tested in variable speed mode at ___

  A. no flow, and 100% of rated load.
  B. no flow, 100%, and 150% of rated load.
  C. no flow, 50%, 100%, and 150% of rated load.
  D. no flow, 25%, 50%, 75%, 100%, 125%, and 150% of rated load
  B. no flow, 100%, and 150% of rated load.

• Question 9:

  When backflow prevention valves are installed on existing pipe scheduled systems, the friction losses of the device shall be accounted for when determining

  A. residual pressure.
  B. system flow requirements.
  C. static pressure.
  D. system GPM requirements.
  A. residual pressure.

• Question 10:

  What is the minimum calculated design area for a light hazard sprinkler system protecting an open office space with a noncombustible acoustic ceiling tile installed 6 in. (150 mm) below the bottom of solid wood joists?

  A. 900 ft2 (83.6 m2)
  B. 1,500 ft2 (139.35 m2)
  C. 1,950 ft2 (181.1 m2)
  D. 3,000 ft2 (278.7 m2)
  B. 1,500 ft2 (139.35 m2)