FDNY S-95 SUPERVISION OF FIRE ALARM SYSTEMS EXAM QUESTIONS & ANSWERS 2026-2…
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY S-95 Supervision of
Fire Alarm Systems Exam
Questions & Answers 2026-
2027 | Comprehensive
Review (Rationales)
Verified Answers Exam Ready With Rationales 70 QUESTIONS
DOCUMENT OVERVIEW
This comprehensive review offers 70 FDNY S-95 exam questions, each with the correct
answer and detailed rationales. It covers essential knowledge for fire alarm system
supervision, making it an ideal study resource for certification preparation and thorough
review.
TOPICS
Initiating Devices: Smoke Detection Q1–Q21
Initiating Devices: Heat & Manual Q22–Q32
Fire Alarm System Fundamentals Q33–Q57
System Components & Features Q58–Q63
Building Fire Protection Integration Q64–Q70
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 70
Analog (intelligent) Smoke Detectors
CORRECT ANSWER
shall be cleaned no later than one (1) week from receipt of an indication of the need for
cleaning.
RATIONALE
Analog smoke detectors require routine cleaning to maintain sensitivity, and this specific
timeframe ensures prompt maintenance following a detected issue. The key concept tested is the
maintenance schedule for sensitive detection equipment.
Q2 QUESTION 2 OF 70
Smoke detectors
CORRECT ANSWER
MUST BE: (1) cleaned not less than once every six (6) months
(2) tested for smoke entry not less than once a year.
RATIONALE
Regular cleaning prevents dust accumulation that can impede smoke detection, while annual
testing ensures the alarm mechanism functions correctly for timely notification. This dual
maintenance strategy is critical for reliable fire safety.
Q3 QUESTION 3 OF 70
Smoke, beam, and duct detectors
Page 2
, CORRECT ANSWER
(1) Activated by detection of particles of combustion
(2) causes Fire Alarm
(3) normally resets when the reset button is pressed at the FACP if the condition activating the
detector has been cleared.
Must be protected from the entrance of foreign particles that may be airborne. Ex: Dust from
cutting wood, sheet rock or sanding may trigger a false alarm.
Q4 QUESTION 4 OF 70
Smoke Detector
CORRECT ANSWER
device that detects visible or invisible particles of combustion.
RATIONALE
A smoke detector functions by sensing airborne products of combustion, which can be visible
smoke or invisible gases, initiating an alarm to warn occupants of potential fire. This highlights the
device's primary purpose of early fire detection through particle identification.
Q5 QUESTION 5 OF 70
Kinds of Smoke Detectors
CORRECT ANSWER
Most popular ones work by:
1. optical detection (photoelectric)
2. physical process (ionization)
3. multi-sensor detectors (combo of both)
RATIONALE
Smoke detectors primarily function through photoelectric detection of visible light scatter or
ionization detection of electrical current disruption caused by smoke particles. Multi-sensor
models combine both principles for enhanced detection accuracy and reduced false alarms.
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
FDNY S-95 Supervision of
Fire Alarm Systems Exam
Questions & Answers 2026-
2027 | Comprehensive
Review (Rationales)
Verified Answers Exam Ready With Rationales 70 QUESTIONS
DOCUMENT OVERVIEW
This comprehensive review offers 70 FDNY S-95 exam questions, each with the correct
answer and detailed rationales. It covers essential knowledge for fire alarm system
supervision, making it an ideal study resource for certification preparation and thorough
review.
TOPICS
Initiating Devices: Smoke Detection Q1–Q21
Initiating Devices: Heat & Manual Q22–Q32
Fire Alarm System Fundamentals Q33–Q57
System Components & Features Q58–Q63
Building Fire Protection Integration Q64–Q70
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 70
Analog (intelligent) Smoke Detectors
CORRECT ANSWER
shall be cleaned no later than one (1) week from receipt of an indication of the need for
cleaning.
RATIONALE
Analog smoke detectors require routine cleaning to maintain sensitivity, and this specific
timeframe ensures prompt maintenance following a detected issue. The key concept tested is the
maintenance schedule for sensitive detection equipment.
Q2 QUESTION 2 OF 70
Smoke detectors
CORRECT ANSWER
MUST BE: (1) cleaned not less than once every six (6) months
(2) tested for smoke entry not less than once a year.
RATIONALE
Regular cleaning prevents dust accumulation that can impede smoke detection, while annual
testing ensures the alarm mechanism functions correctly for timely notification. This dual
maintenance strategy is critical for reliable fire safety.
Q3 QUESTION 3 OF 70
Smoke, beam, and duct detectors
Page 2
, CORRECT ANSWER
(1) Activated by detection of particles of combustion
(2) causes Fire Alarm
(3) normally resets when the reset button is pressed at the FACP if the condition activating the
detector has been cleared.
Must be protected from the entrance of foreign particles that may be airborne. Ex: Dust from
cutting wood, sheet rock or sanding may trigger a false alarm.
Q4 QUESTION 4 OF 70
Smoke Detector
CORRECT ANSWER
device that detects visible or invisible particles of combustion.
RATIONALE
A smoke detector functions by sensing airborne products of combustion, which can be visible
smoke or invisible gases, initiating an alarm to warn occupants of potential fire. This highlights the
device's primary purpose of early fire detection through particle identification.
Q5 QUESTION 5 OF 70
Kinds of Smoke Detectors
CORRECT ANSWER
Most popular ones work by:
1. optical detection (photoelectric)
2. physical process (ionization)
3. multi-sensor detectors (combo of both)
RATIONALE
Smoke detectors primarily function through photoelectric detection of visible light scatter or
ionization detection of electrical current disruption caused by smoke particles. Multi-sensor
models combine both principles for enhanced detection accuracy and reduced false alarms.
Page 3
