NFPA NFPA 25 Water-Based Fire Protection Inspection 1 — Questions and Answers
Question 1: Under NFPA 25, how frequently must wet pipe sprinkler system gauges be inspected?
- Weekly
- Monthly (Correct answer)
- Quarterly
- Annually
Correct answer: Monthly
NFPA 25 requires gauges on wet pipe sprinkler systems to be inspected monthly to verify they are in good condition and show normal pressure.
Question 2: According to NFPA 25, how often must a main drain test be conducted on a wet pipe sprinkler system?
- Monthly
- Quarterly
- Annually (Correct answer)
- Every 5 years
Correct answer: Annually
NFPA 25 requires an annual main drain test to verify that the water supply is unobstructed and pressure is adequate.
Question 3: Under NFPA 25, what is the required frequency for a full flow trip test of a dry pipe valve?
- Annually (Correct answer)
- Every 3 years
- Every 5 years
- Every 10 years
Correct answer: Annually
NFPA 25 requires a full flow trip test of dry pipe valves annually to ensure the system operates correctly.
Question 4: According to NFPA 25, what action is required when a sprinkler head shows signs of corrosion, paint, or loading?
- Clean the sprinkler head
- Replace the sprinkler head immediately (Correct answer)
- Apply touch-up paint to protect it
- Document and monitor for 6 months
Correct answer: Replace the sprinkler head immediately
NFPA 25 requires that any sprinkler showing signs of corrosion, loading, or unauthorized paint be replaced immediately.
Question 5: Under NFPA 25, how frequently must fire department connections (FDCs) be inspected?
- Weekly
- Monthly (Correct answer)
- Quarterly
- Annually
Correct answer: Monthly
NFPA 25 requires quarterly inspections of fire department connections to verify they are accessible, undamaged, and have proper caps.
Question 6: According to NFPA 25, what is the minimum flow required during an inspector's test connection flow test to verify sprinkler system waterflow alarms?
- Flow equivalent to one sprinkler (Correct answer)
- Flow equivalent to two sprinklers
- 25 gpm
- 50 gpm
Correct answer: Flow equivalent to one sprinkler
NFPA 25 specifies that the inspector's test connection must produce a flow equivalent to one sprinkler to test waterflow alarm devices.
NFPA NFPA 25 Water-Based Fire Protection Inspection 1
Under NFPA 25, how frequently must wet pipe sprinkler system gauges be inspected?