S-95 FDNY TEST STUDY GUIDE
(Updated for 2026) Exam Prep Pack | A+ Questions
55+
& Verified Answers
VERIFIED ANSWERS
Question 1
What Can A S95 Holder do?
Correct Answer
Only visual inspections on smoke alarms
Rationale:
A S95 holder is a storage container for a smoke alarm, not a testing device, so it cannot perform any functional tests or inspections on the
smoke alarm. Therefore, the only action a S95 holder can take in relation to a smoke alarm is to visually inspect it, such as checking its
physical condition or battery status.
Question 2
Primary Purpose of Fire Alarm Systems
Correct Answer
on a premise is to warn tenants and transmit signals indicating a fire condition to the FDNY aka Central station
Rationale:
The primary purpose of fire alarm systems is to provide an early warning to occupants and first responders, such as the FDNY, of a potential
fire condition to facilitate prompt evacuation and emergency response. This is achieved by transmitting signals to a central station, like Central
Station, which then relays the information to the FDNY, enabling swift and effective action to mitigate the fire and ensure public safety.
Question 3
Fire Alarm Control Panel (FACP)
Correct Answer
Monitors inputs and controls output through various types of circuits.The Panel activates the building audible and visual
device connected to the fire alarm (horn/strobes)
Rationale:
The correct answer is because a Fire Alarm Control Panel (FACP) is responsible for monitoring the inputs from various sensors and devices to
detect potential fires, and controlling the outputs to activate audible and visual alarms, such as horns and strobes, to alert occupants and
emergency responders. This function aligns with the definition of a FACP, which is designed to receive and process data from various sources
and initiate responses to ensure building safety.
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,Question 4
Three Types of Signals
Correct Answer
Fire Alarm Signal, Supervisory Signals, and Trouble Signals
Rationale:
This answer is correct because fire alarm signals, supervisory signals, and trouble signals are distinct categories of notifications used in fire
safety systems to alert personnel of different types of events or conditions. These categories are based on standard fire alarm system
terminology and are widely recognized in the industry, making this answer a comprehensive and accurate representation of the three types of
signals.
Question 5
Fire Alarm Signal
Correct Answer
Manual fire alarm pull station, smoke detector, water flow switch in the
presence of a fire or fire signature.
Rationale:
This correct answer encompasses the three primary components of a fire alarm system that would initiate a signal in response to a fire or fire
signature. Each component - the manual fire alarm pull station, smoke detector, and water flow switch - serves as a unique trigger that alerts
the system to potential fire hazards, thereby ensuring a comprehensive and timely response to emergencies.
Question 6
Supervisory Signals
Correct Answer
Signals which Indicate that a system or device being monitored has been compromised or is in an abnormal state. Will
audibly and visually annunciate at the FACP to indicate the condition needs to be investigated and corrected. The FACP
will also send a signal to an FDNY approved central station.
Rationale:
Supervisory signals are alarm conditions that indicate a system or device has been compromised or is in an abnormal state, requiring
investigation and correction. This definition aligns with the given description because it emphasizes the critical aspect of supervisory signals,
which is to alert and notify authorities of a potential issue, prompting a response to address the problem.
Question 7
Trouble Signals
Correct Answer
Battery failure, AC failure, ground fault, open or short circuit on a wire, phone line failure, internal component failure.
Rationale:
These trouble signals are correct because they describe potential causes of disruptions or errors in a system, which can be related to various
types of electrical or communication systems. Each option represents a specific type of malfunction or failure that could prevent a system from
functioning properly, such as a loss of power, a short circuit, or a failure to communicate.
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, Question 8
Alarm Silence Switch or Button
Correct Answer
Is used to silence the building audible and visual
devices after evacuation is complete while the source of alarm is being investigated. Never reset the fire alarm system
until the condition is verified by the FDNY personnel.
Rationale:
The correct answer is based on standard fire safety protocols that prioritize thorough investigation of alarm sources, ensuring that silent alarms
do not mask potential hazards or fires. Activating the "Is used to silence" device after evacuation is complete allows FDNY personnel to verify
the alarm source's legitimacy and reset the system only when it's safe to do so, minimizing risks and ensuring effective response to
emergencies.
Question 9
System Reset Switch Or Button
Correct Answer
Reset fire alarm system after condition is cleared. Should return to normal condition after resetting. Often required to
clear supervisory conditions, does not clear trouble conditions.
Rationale:
A system reset switch or button is designed to restore the system to its normal operating condition after an abnormal condition, such as a fire
alarm, has been detected and cleared. By resetting the system, it clears supervisory conditions that indicate a problem, but does not clear
trouble conditions that require immediate attention or repair.
Question 10
Smoke detectors must be
Correct Answer
Cleaned once every 6 months. Test for smoke entry every once a year
Rationale:
This answer is correct because it adheres to the National Fire Protection Association (NFPA) standards, which recommend that smoke detectors
be cleaned at least once every six months to ensure proper functionality, and inspected annually for signs of smoke entry or other damage.
This maintenance frequency helps prevent false alarms and ensures smoke detectors remain effective in detecting potential fires.
Question 11
Primary Power
Correct Answer
shall be generated electric power not exceeding 277/480 volts
Rationale:
The phrase "shall be generated electric power not exceeding 277/480 volts" is relevant to the primary power aspect because it specifies the
standard voltage ranges typically associated with primary power sources, which are the main electrical power supplies in a building or facility.
This voltage range is considered primary power because it is the initial source of electricity before it is distributed to other parts of the system
through secondary power sources like transformers and distribution panels.
Trusted by thousands of students and professionals worldwide Page 3 of 17
(Updated for 2026) Exam Prep Pack | A+ Questions
55+
& Verified Answers
VERIFIED ANSWERS
Question 1
What Can A S95 Holder do?
Correct Answer
Only visual inspections on smoke alarms
Rationale:
A S95 holder is a storage container for a smoke alarm, not a testing device, so it cannot perform any functional tests or inspections on the
smoke alarm. Therefore, the only action a S95 holder can take in relation to a smoke alarm is to visually inspect it, such as checking its
physical condition or battery status.
Question 2
Primary Purpose of Fire Alarm Systems
Correct Answer
on a premise is to warn tenants and transmit signals indicating a fire condition to the FDNY aka Central station
Rationale:
The primary purpose of fire alarm systems is to provide an early warning to occupants and first responders, such as the FDNY, of a potential
fire condition to facilitate prompt evacuation and emergency response. This is achieved by transmitting signals to a central station, like Central
Station, which then relays the information to the FDNY, enabling swift and effective action to mitigate the fire and ensure public safety.
Question 3
Fire Alarm Control Panel (FACP)
Correct Answer
Monitors inputs and controls output through various types of circuits.The Panel activates the building audible and visual
device connected to the fire alarm (horn/strobes)
Rationale:
The correct answer is because a Fire Alarm Control Panel (FACP) is responsible for monitoring the inputs from various sensors and devices to
detect potential fires, and controlling the outputs to activate audible and visual alarms, such as horns and strobes, to alert occupants and
emergency responders. This function aligns with the definition of a FACP, which is designed to receive and process data from various sources
and initiate responses to ensure building safety.
Trusted by thousands of students and professionals worldwide Page 1 of 17
,Question 4
Three Types of Signals
Correct Answer
Fire Alarm Signal, Supervisory Signals, and Trouble Signals
Rationale:
This answer is correct because fire alarm signals, supervisory signals, and trouble signals are distinct categories of notifications used in fire
safety systems to alert personnel of different types of events or conditions. These categories are based on standard fire alarm system
terminology and are widely recognized in the industry, making this answer a comprehensive and accurate representation of the three types of
signals.
Question 5
Fire Alarm Signal
Correct Answer
Manual fire alarm pull station, smoke detector, water flow switch in the
presence of a fire or fire signature.
Rationale:
This correct answer encompasses the three primary components of a fire alarm system that would initiate a signal in response to a fire or fire
signature. Each component - the manual fire alarm pull station, smoke detector, and water flow switch - serves as a unique trigger that alerts
the system to potential fire hazards, thereby ensuring a comprehensive and timely response to emergencies.
Question 6
Supervisory Signals
Correct Answer
Signals which Indicate that a system or device being monitored has been compromised or is in an abnormal state. Will
audibly and visually annunciate at the FACP to indicate the condition needs to be investigated and corrected. The FACP
will also send a signal to an FDNY approved central station.
Rationale:
Supervisory signals are alarm conditions that indicate a system or device has been compromised or is in an abnormal state, requiring
investigation and correction. This definition aligns with the given description because it emphasizes the critical aspect of supervisory signals,
which is to alert and notify authorities of a potential issue, prompting a response to address the problem.
Question 7
Trouble Signals
Correct Answer
Battery failure, AC failure, ground fault, open or short circuit on a wire, phone line failure, internal component failure.
Rationale:
These trouble signals are correct because they describe potential causes of disruptions or errors in a system, which can be related to various
types of electrical or communication systems. Each option represents a specific type of malfunction or failure that could prevent a system from
functioning properly, such as a loss of power, a short circuit, or a failure to communicate.
Trusted by thousands of students and professionals worldwide Page 2 of 17
, Question 8
Alarm Silence Switch or Button
Correct Answer
Is used to silence the building audible and visual
devices after evacuation is complete while the source of alarm is being investigated. Never reset the fire alarm system
until the condition is verified by the FDNY personnel.
Rationale:
The correct answer is based on standard fire safety protocols that prioritize thorough investigation of alarm sources, ensuring that silent alarms
do not mask potential hazards or fires. Activating the "Is used to silence" device after evacuation is complete allows FDNY personnel to verify
the alarm source's legitimacy and reset the system only when it's safe to do so, minimizing risks and ensuring effective response to
emergencies.
Question 9
System Reset Switch Or Button
Correct Answer
Reset fire alarm system after condition is cleared. Should return to normal condition after resetting. Often required to
clear supervisory conditions, does not clear trouble conditions.
Rationale:
A system reset switch or button is designed to restore the system to its normal operating condition after an abnormal condition, such as a fire
alarm, has been detected and cleared. By resetting the system, it clears supervisory conditions that indicate a problem, but does not clear
trouble conditions that require immediate attention or repair.
Question 10
Smoke detectors must be
Correct Answer
Cleaned once every 6 months. Test for smoke entry every once a year
Rationale:
This answer is correct because it adheres to the National Fire Protection Association (NFPA) standards, which recommend that smoke detectors
be cleaned at least once every six months to ensure proper functionality, and inspected annually for signs of smoke entry or other damage.
This maintenance frequency helps prevent false alarms and ensures smoke detectors remain effective in detecting potential fires.
Question 11
Primary Power
Correct Answer
shall be generated electric power not exceeding 277/480 volts
Rationale:
The phrase "shall be generated electric power not exceeding 277/480 volts" is relevant to the primary power aspect because it specifies the
standard voltage ranges typically associated with primary power sources, which are the main electrical power supplies in a building or facility.
This voltage range is considered primary power because it is the initial source of electricity before it is distributed to other parts of the system
through secondary power sources like transformers and distribution panels.
Trusted by thousands of students and professionals worldwide Page 3 of 17
