FDNY S-12 CITYWIDE SPRINKLER
SYSTEM COMPREHENSIVE EXAM PREP
(2026/2027)
1. How often must a visual inspection of all sprinkler heads be conducted to check for signs of
leakage, corrosion, or physical damage?
A. Annually
B. Quarterly
C. Monthly
D. Every five years
Answer: A
Conceptual Explanation: NFPA 25 and FDNY codes require an annual visual inspection of
all sprinkler heads from the floor level to ensure they are free of corrosion and
obstructions.
2. Which tag color is used to indicate that a sprinkler system is partially out of service?
A. Red
B. Orange
,C. Green
D. Yellow
Answer: B
Conceptual Explanation: An orange tag is used when a system is partially out of service,
while a red tag indicates a full system impairment.
3. What is the minimum temperature that must be maintained in a dry pipe valve room to
prevent freezing?
A. 32 degrees F
B. 40 degrees F
C. 50 degrees F
D. 60 degrees F
Answer: B
Conceptual Explanation: Dry pipe valve enclosures must be maintained at a minimum of
40 degrees Fahrenheit to prevent the water-filled portion of the system from freezing.
4. A main drain test is required to be performed at which frequency?
A. Monthly
B. Quarterly
C. Annually
, D. Semiannually
Answer: C
Conceptual Explanation: A main drain test is performed annually to evaluate the water
supply and ensure there are no major obstructions in the supply piping.
5. Which of the following describes a ‘Pre-action’ sprinkler system?
A. A system employing closed heads and a supplemental detection system that must be
tripped before water enters the pipes.
B. A system containing water under pressure at all times.
C. A system where all heads are open and water discharges immediately upon valve
activation.
D. A system that uses air or nitrogen pressure to hold back a water valve.
Answer: A
Conceptual Explanation: Pre-action systems require the activation of a separate fire
detection system before water is released into the sprinkler piping.
6. How often should pressure gauges on a wet pipe system be inspected?
A. Daily
B. Weekly
C. Monthly
D. Annually
SYSTEM COMPREHENSIVE EXAM PREP
(2026/2027)
1. How often must a visual inspection of all sprinkler heads be conducted to check for signs of
leakage, corrosion, or physical damage?
A. Annually
B. Quarterly
C. Monthly
D. Every five years
Answer: A
Conceptual Explanation: NFPA 25 and FDNY codes require an annual visual inspection of
all sprinkler heads from the floor level to ensure they are free of corrosion and
obstructions.
2. Which tag color is used to indicate that a sprinkler system is partially out of service?
A. Red
B. Orange
,C. Green
D. Yellow
Answer: B
Conceptual Explanation: An orange tag is used when a system is partially out of service,
while a red tag indicates a full system impairment.
3. What is the minimum temperature that must be maintained in a dry pipe valve room to
prevent freezing?
A. 32 degrees F
B. 40 degrees F
C. 50 degrees F
D. 60 degrees F
Answer: B
Conceptual Explanation: Dry pipe valve enclosures must be maintained at a minimum of
40 degrees Fahrenheit to prevent the water-filled portion of the system from freezing.
4. A main drain test is required to be performed at which frequency?
A. Monthly
B. Quarterly
C. Annually
, D. Semiannually
Answer: C
Conceptual Explanation: A main drain test is performed annually to evaluate the water
supply and ensure there are no major obstructions in the supply piping.
5. Which of the following describes a ‘Pre-action’ sprinkler system?
A. A system employing closed heads and a supplemental detection system that must be
tripped before water enters the pipes.
B. A system containing water under pressure at all times.
C. A system where all heads are open and water discharges immediately upon valve
activation.
D. A system that uses air or nitrogen pressure to hold back a water valve.
Answer: A
Conceptual Explanation: Pre-action systems require the activation of a separate fire
detection system before water is released into the sprinkler piping.
6. How often should pressure gauges on a wet pipe system be inspected?
A. Daily
B. Weekly
C. Monthly
D. Annually
