NFPA NFPA 25 Water-Based Fire Protection Inspection 2

Question 1

Under NFPA 25, what is the required inspection frequency for internal inspection of steel dry pipe and preaction system piping?

Accepted Answer

Every 5 years

Answer

Every 3 years

Answer

Every 10 years

Answer

Every 15 years

Question 2

According to NFPA 25, what condition requires replacement of a sprinkler head without testing?

Accepted Answer

Sprinkler is more than 50 years old in a wet system

Answer

Sprinkler is more than 25 years old

Answer

Sprinkler is a fast-response type

Answer

Sprinkler has a painted finish from factory

Question 3

Under NFPA 25, which condition during a hydrostatic test would require the system to fail?

Accepted Answer

Pressure drops more than 10 psi in 2 hours

Answer

Any pressure drop during the test period

Answer

Pressure drops more than 5 psi in 15 minutes

Answer

Pressure drops more than 20 psi in 24 hours

Question 4

According to NFPA 25, what must be done after any sprinkler system work that requires draining the system?

Accepted Answer

Perform a main drain test and restore the system to service

Answer

Submit a written report to the AHJ

Answer

Wait 24 hours before restoring service

Answer

Replace all sprinkler heads

Question 5

Under NFPA 25, how often must the internal condition of wet pipe system piping be inspected in areas with a history of microbiologically influenced corrosion (MIC)?

Accepted Answer

Annually

Answer

Every 3 years

Answer

Every 5 years

Answer

Only after an obstruction event

Question 6

According to NFPA 25, which valve must be tested by partially closing it and verifying the waterflow alarm activates?

Accepted Answer

Control valve tamper switch

Answer

OS&Y gate valve

Answer

Check valve

Answer

Butterfly valve