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

NFPA 25 requires an internal inspection of dry pipe and preaction system piping every 5 years to check for obstructions.

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

NFPA 25 requires that sprinklers 50 years or older in wet systems be replaced or sample-tested; replacement is required if they fail testing.

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

NFPA 25 specifies that a hydrostatic test fails if pressure drops more than 10 psi during the 2-hour test period.

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

NFPA 25 requires that after any system maintenance requiring draining, a main drain test be performed and the system fully restored to service.

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

NFPA 25 requires annual internal inspections of wet pipe systems in environments with a history of MIC contamination.

NFPA - National Fire Protection Association Practice Test

NFPA - National Fire Protection Association Practice Test

NFPA NFPA 25 Water-Based Fire Protection Inspection 2