S12 FDNY Exam V1 | Latest Update | Questions and
Verified Answers | GRADED A | 100% Correct
(Verified Solutions) 2026–2027
Question 1
During an operational test of a foam water sprinkler system, if the nozzles are plugged what
color tag is used?
A. Green
B. Yellow
C. Red
D. Blue
ANSWER: C. Red
RATIONALE: A red tag is used to indicate that a sprinkler system component, such as a
nozzle, is plugged or inoperable during an operational test. This signals that the system
requires immediate attention and repair before it can be considered operational.
Question 2
Steel water storage tanks without corrosive protection are to be inspected how often?
A. 1 Year
B. 2 Years
C. 3 Years
D. 5 Years
ANSWER: C. 3 Years
RATIONALE: Steel water storage tanks that lack corrosive protection are required to be
inspected every 3 years to check for rust, deterioration, and structural integrity. Tanks with
proper protection may have longer inspection intervals.
,Question 3
A sprinkler head with a white frame has a temperature rating of?
A. 135 - 170°F
B. 175 - 225°F
C. 250 - 300°F
D. 325 - 375°F
ANSWER: B. 175 - 225°F
RATIONALE: Sprinkler heads are color-coded by frame to indicate their temperature rating.
A white frame corresponds to an intermediate temperature rating of 175 - 225°F. This color-
coding system allows quick identification of the sprinkler's activation temperature.
Question 4
What color tag is used to indicate that a sprinkler system is fully operational and passes all
tests?
A. Green
B. Yellow
C. Red
D. Blue
ANSWER: A. Green
RATIONALE: A green tag is used to indicate that a sprinkler system has passed all
operational tests and is fully functional. It signifies that the system is ready for service and
meets all regulatory requirements.
Question 5
What is the minimum recommended water supply duration for a fire sprinkler system in a
high-rise building?
,A. 30 minutes
B. 60 minutes
C. 90 minutes
D. 120 minutes
ANSWER: C. 90 minutes
RATIONALE: NFPA standards and FDNY regulations typically require a minimum water
supply duration of 90 minutes for fire sprinkler systems in high-rise buildings to ensure
adequate water is available for firefighting operations.
Question 6
Which type of sprinkler head is designed to spray water in a circular pattern and is
commonly used in offices and residential spaces?
A. Upright sprinkler
B. Pendant sprinkler
C. Sidewall sprinkler
D. Concealed sprinkler
ANSWER: B. Pendant sprinkler
RATIONALE: Pendant sprinklers hang down from the ceiling and distribute water in a
circular pattern. They are the most common type used in offices, hotels, and residential
occupancies.
Question 7
A sprinkler head with a red frame has a temperature rating of?
A. 135 - 170°F
B. 175 - 225°F
C. 250 - 300°F
D. 325 - 375°F
, ANSWER: A. 135 - 170°F
RATIONALE: A red frame on a sprinkler head indicates an ordinary temperature rating of
135 - 170°F. This is the most common rating for residential and light hazard occupancies.
Question 8
What is the maximum distance between sprinkler heads in a light hazard occupancy per
NFPA 13?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
ANSWER: B. 15 feet
RATIONALE: NFPA 13 requires a maximum spacing of 15 feet between sprinkler heads in
light hazard occupancies to ensure adequate coverage and water distribution.
Question 9
Steel water storage tanks with corrosive protection are to be inspected how often?
A. 1 Year
B. 3 Years
C. 5 Years
D. 10 Years
ANSWER: C. 5 Years
RATIONALE: Steel water storage tanks that have proper corrosive protection are typically
inspected every 5 years, as the protection extends the inspection interval compared to
unprotected tanks.
Verified Answers | GRADED A | 100% Correct
(Verified Solutions) 2026–2027
Question 1
During an operational test of a foam water sprinkler system, if the nozzles are plugged what
color tag is used?
A. Green
B. Yellow
C. Red
D. Blue
ANSWER: C. Red
RATIONALE: A red tag is used to indicate that a sprinkler system component, such as a
nozzle, is plugged or inoperable during an operational test. This signals that the system
requires immediate attention and repair before it can be considered operational.
Question 2
Steel water storage tanks without corrosive protection are to be inspected how often?
A. 1 Year
B. 2 Years
C. 3 Years
D. 5 Years
ANSWER: C. 3 Years
RATIONALE: Steel water storage tanks that lack corrosive protection are required to be
inspected every 3 years to check for rust, deterioration, and structural integrity. Tanks with
proper protection may have longer inspection intervals.
,Question 3
A sprinkler head with a white frame has a temperature rating of?
A. 135 - 170°F
B. 175 - 225°F
C. 250 - 300°F
D. 325 - 375°F
ANSWER: B. 175 - 225°F
RATIONALE: Sprinkler heads are color-coded by frame to indicate their temperature rating.
A white frame corresponds to an intermediate temperature rating of 175 - 225°F. This color-
coding system allows quick identification of the sprinkler's activation temperature.
Question 4
What color tag is used to indicate that a sprinkler system is fully operational and passes all
tests?
A. Green
B. Yellow
C. Red
D. Blue
ANSWER: A. Green
RATIONALE: A green tag is used to indicate that a sprinkler system has passed all
operational tests and is fully functional. It signifies that the system is ready for service and
meets all regulatory requirements.
Question 5
What is the minimum recommended water supply duration for a fire sprinkler system in a
high-rise building?
,A. 30 minutes
B. 60 minutes
C. 90 minutes
D. 120 minutes
ANSWER: C. 90 minutes
RATIONALE: NFPA standards and FDNY regulations typically require a minimum water
supply duration of 90 minutes for fire sprinkler systems in high-rise buildings to ensure
adequate water is available for firefighting operations.
Question 6
Which type of sprinkler head is designed to spray water in a circular pattern and is
commonly used in offices and residential spaces?
A. Upright sprinkler
B. Pendant sprinkler
C. Sidewall sprinkler
D. Concealed sprinkler
ANSWER: B. Pendant sprinkler
RATIONALE: Pendant sprinklers hang down from the ceiling and distribute water in a
circular pattern. They are the most common type used in offices, hotels, and residential
occupancies.
Question 7
A sprinkler head with a red frame has a temperature rating of?
A. 135 - 170°F
B. 175 - 225°F
C. 250 - 300°F
D. 325 - 375°F
, ANSWER: A. 135 - 170°F
RATIONALE: A red frame on a sprinkler head indicates an ordinary temperature rating of
135 - 170°F. This is the most common rating for residential and light hazard occupancies.
Question 8
What is the maximum distance between sprinkler heads in a light hazard occupancy per
NFPA 13?
A. 10 feet
B. 15 feet
C. 20 feet
D. 25 feet
ANSWER: B. 15 feet
RATIONALE: NFPA 13 requires a maximum spacing of 15 feet between sprinkler heads in
light hazard occupancies to ensure adequate coverage and water distribution.
Question 9
Steel water storage tanks with corrosive protection are to be inspected how often?
A. 1 Year
B. 3 Years
C. 5 Years
D. 10 Years
ANSWER: C. 5 Years
RATIONALE: Steel water storage tanks that have proper corrosive protection are typically
inspected every 5 years, as the protection extends the inspection interval compared to
unprotected tanks.
