NFPA 25 Study Guide – Water-Based Fire Protection System Standards

NFPA-25 Study
WHAT IS THE PURPOSE OF A CONTROL
CONTROL FLOW TO THE WATER BASED SYSTEM 2025/2026
VALVE

THE GAUGE ON THE QUICK OPENING PLUS OR MINUS 10PSI EITHER WAY
DEVICE SHALL INDICATE "BLANK" AS
COMPARED TO THE GAUGE ON THE
SYSTEM SIDE OF THE DRY PIPE
VALVE?

DRAIN TEST
WHAT TYPE OF TEST SHALL BE
PROVIDED WHEN A VALVE IS
RETURNED TO SERVICE TO
DETERMINE THAT THE VALVE IS OPEN?

A PIPE AND ITS APPURTENANCES ON PRIVATE PROPERTY, & PIPE BETWEEN
WHAT IS A FIRE SERVICE MAIN? A SOURCE OF WATER AND THE BASE OF THE SYSTEM RISER

ORIFICE PLATE PROPORTIONING
NAME THE SYSTEM THAT UTILIZES A
PLATE THROUGH WHICH PASSES A
SPECIFIC AMOUNT OF FOAM
CONCENTRATE AT A SPECIFIC
PRESSURE


CORROSION
DURING AN INSPECTION, WHICH OF
THE FOLLOWING WOULD BE
IDENTIFIED AS A SPRINKLER WHICH
SHALL BE REPLACED?

PERIODIC INSPECTION IS NOT REQUIRED
WHAT ARE THE INSPECTION
REQUIREMENTS FOR HANGERS AND
SEISMIC BRACES INSTALLED IN
CONCEALED SPACES?

5 YEARS / 5 YEARS
GAUGES SHALL BE REPLACED EVERY
"BLANK" OR TESTED EVERY "BLANK"
BY COMPARISON WITH A CALIBRATED
GAUGE.

MONTHLY
WHERE AIR PRESSURE SUPERVISION
IS CONNECTED TO A CONSTANTLY
ATTENDED LOCATION GAUGES SHALL
BE INSPECTED "BLANK"

SHALL BE INSPECTED
SPRINKLERS INSTALLED IN AREAS
THAT ARE INACCESSIBLE FOR SAFETY
CONSIDERATION, DUE TO PROCESS
OPERATIONS "BLANK" BE "BLANK"
DURING EACH SCHEDULED
SHUTDOWN


PRESSURE REDUCING VALVE
WHAT TYPE OF VALVE IS DESIGNED
FOR THE PURPOSE OF REDUCING
DOWNSTREAM WATER PRESSURE
UNDER BOTH RESIDUAL AND STATIC
CONDITIONS?


SEALING, ELECTRICAL, OR POWER SUPERVISION. ANSWER NONE
WHICH OF THE FOLLOWING IS A
REQUIREMENT FOR HOSE VALVES?

1/4 TURN
PIV AND O.S AND Y. SHALL BE BACKED
A "BLANK" FROM THE FULLY OPEN
POSITION TO PREVENT JAMMING?

, NFPA-25 Study 10% 2025/2026
WHEN THERE IS A "BLANK" PERCENT
REDUCTION IN FULL FLOW PRESSURE,
WHEN COMPARED TO ORIGINAL
ACCEPTANCE TEST, THE CAUSE OF
THE REDUCTION SHALL BE IDENTIFIED
AND CORRECTED.


GAUGES NOT ACCURATE WITHIN 3%
"BLANK" PERCENT OF THE FULL
SCALE SHALL BE RECALIBRATED OR
REPLACED

SYSTEM CONTROL RISER
A PERMANENTLY MARKED
INFORMATION SIGN SHALL BE PLACED
AT THE "BLANK" SUPPLYING THE
ANTIFREEZE LOOP, DRY SYSTEM,
PREACTION SYSTEM, OR AUXILIARY
SYSTEMS CONTROL VALVE


LOCATION OF AREA SERVED BY SYSTEM. THE PRESENCE AND LOCATION
INFORMATION SIGNS SHALL INDICATE OF ANTIFREEZE OR OTHER AUXILIARY SYSTEMS. THE PRESENCE AND
LOCATION OF WHICH OF THE LOCATION OF HEAT TAPE. ALL OF ABOVE
FOLLOWING

HYDRAULIC DESIGN INFORMATION SIGN
WHICH OF THE FOLLOWING SIGNS
REQUIRES A QUARTERLY INSPECTION
TO VERIFY THAT IT IS SECURELY
ATTACHED TO THE SPRINKLER RISER


WHICH OF THE FOLLOWING WOULD BOTH A & B. RIGID PLASTIC, OR METAL
BE AN ACCEPTABLE MATERIAL FOR
THE INFORMATION SIGN TO BE MADE
OF?

TESTING IS NOT REQUIRED FOR THE INFORMATION SIGN
HOW OFTEN SHALL THE SYSTEM
INFORMATION SIGN BE TESTED?

5 PSI

WHERE SPRINKLERS HAVE BEEN IN
SERVICE FOR 50 YEARS THEY SHALL
BE REPLACED OR REPRESENTATIVE
SAMPLES FROM ONE OR MORE
SAMPLE AREAS SHALL BE TESTED.
THE SPRINKLERS SHOULD BE TESTED
FOR SENSITIVITY AND FUNCTIONALITY
AT "BLANK" PSI


ANSWER NONE
WHAT SPECIALIZED EQUIPMENT IS
NEEDED TO TEST WATERFLOW ALARM
DEVICES ON A WET PIPE SYSTEM?
ELECTRICAL METER, WATER
PRESSURE SEISMIC RELAY, OR PITOT
GAUGE.


WHAT TYPE OF TESTING REQUIRES ANTIFREEZE SYSTEMS
THE USE OF A REFRACTOMETER.

A THIN PAPER BAG
SPRINKLERS SUBJECT TO OVERSPRAY
ACCUMULATION SHALL BE
PROTECTED BY USING

PITOT GAUGE
WHAT TYPE OF DEVICE IS USED TO
TEST FLOW RATES

PENDANT SPRINKLER
IDENTIFY WHAT TYPE OF SPRINKLER
IS DESIGNED TO BE INSTALLED IN
SUCH A WAY THAT THE WATER
STREAM IS DIRECTED DOWNWARD
AGAINST THE DEFLECTOR