S95 Practice Test

The supervision of fire alarm systems is a crucial aspect of fire safety, ensuring that fire alarm systems are constantly monitored and maintained. Supervised fire alarm systems involve monitoring devices that alert building occupants and emergency services in the event of a fire. The main purpose of these systems is to detect fire conditions early, initiate evacuation procedures, and notify the fire department. Practice with the free Supervision of Fire Alarm System practice test on PracticeTestGeeks (7 questions with answer explanations).

Free S95 Practice Test Online

Supervision in fire alarm systems includes regular testing, inspection, and maintenance to ensure that all components are operational and comply with relevant fire safety standards and regulations. This process involves overseeing various elements such as smoke detectors, heat detectors, fire alarm control panels, and communication systems that connect to fire departments.

Key Takeaways

• The supervision of fire alarm systems is essential for ensuring fire safety in buildings, involving regular monitoring, testing, and maintenance of fire alarm components.
• The S-95 certification is a specialized credential required for supervising fire alarm systems in certain jurisdictions, ensuring that individuals have the necessary knowledge and skills.
• Obtaining the S-95 certification involves submitting an application, undergoing training, passing an examination, and receiving a Certificate of Fitness.
• Related certifications, such as the F-89 and S-12/S-13, ensure comprehensive training for personnel responsible for various fire and life safety systems.
• Supervised fire alarm systems feature continuous monitoring, automatic alerts, regular testing, redundancy, and compliance with fire safety standards.
• The subject of fire alarm system supervision and the S-95 certification is not specific to India but is relevant worldwide, with similar certifications and regulations in place in various countries.

Certificate of Fitness for Supervision of Fire Alarm Systems S-95

The Certificate of Fitness for Supervision of Fire Alarm Systems S-95 is issued by the fire department or other relevant authority to individuals who have demonstrated their competence in supervising fire alarm systems. This certificate is mandatory in many jurisdictions for those tasked with the responsibility of fire alarm system supervision.

The process of obtaining the Certificate of Fitness typically involves:

1. Application Submission: Candidates must submit an application form, often available on the fire department's website, along with required documentation such as proof of identity and relevant work experience.

S95 Exam at a Glance

What changed for S95 in 2026

• Oct 25, 2026: Exam fee changed to $25 application fee (previously exemptions: F-89/T-89/F-80/F-53 Certificate of Fitness holders are exempt from a separate S-95 for the same premises; may obtain S-95 for a different premises without retaking the exam (employer letter + $25 fee still required)).^[2]
• Oct 25, 2026: Number of questions changed to 35 multiple-choice questions (previously exam questions: 35).^[1]
• Oct 25, 2026: Time limit changed to 53 minutes (previously time limit minutes: 53).^[1]
• Oct 25, 2026: Passing score changed to 70% (previously passing score pct: 70).^[1]
• Oct 25, 2026: Delivery changed to Touch-screen computer at FDNY HQ, 9 MetroTech Center, Brooklyn (previously format: multiple-choice, touch-screen computer).^[1]
• Oct 25, 2026: Renewal changed to $15 every 3 years (previously renewal fee usd: 15).^[2]

Free Supervision of Fire Alarm System Study Tools

Interactive Supervision of Fire Alarm System resources on PracticeTestGeeks, free to start:

• Supervision of Fire Alarm System flashcards — review key terms and concepts card by card
• Supervision of Fire Alarm System study guide — topic-by-topic overview of what the exam covers
• Supervision of Fire Alarm System cheat sheet — one-page printable summary for last-minute review

According to Fire Department of the City of New York (FDNY), Public Certification Unit, “The S-95 exam will consist of 35 multiple-choice questions, administered on a “touch screen” computer monitor.”^[1]

Worked examples: how to reason through S95 questions

These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.

Example 1

Question: A Class B Initiating Device Circuit (IDC) differs from a Class A circuit primarily because:

1. Class B provides two independent signal paths through a looped return
2. A single open-circuit fault on a Class B circuit renders all devices beyond the break inoperable
3. Class B requires no end-of-line resistor at the far end of the circuit
4. Class B exclusively uses fiber-optic cable for signal transmission

Answer: B. A single open-circuit fault on a Class B circuit renders all devices beyond the break inoperable

Explanation:

The correct answer is that an open-circuit fault on a Class B circuit leaves every device beyond the break inoperable. A Class B circuit runs out to the far end on a single path. If that path breaks, nothing past the break can report an alarm.

The looped return with two independent paths describes Class A, so that option is wrong. Class B still needs an end-of-line resistor, because that resistor is how the panel monitors the circuit, so the third option is wrong. Fiber-optic cable has nothing to do with the Class A and Class B distinction, so the last option is wrong.

Rule to remember: Class A adds a return path so devices keep working after a break. Class B does not.

Example 2

Question: A photoelectric smoke detector is most effective at detecting which type of fire?

1. A fire involving flammable liquids that spreads rapidly.
2. A slow, smoldering fire that produces a large amount of smoke.
3. A fire in a commercial kitchen with high ambient temperatures.
4. A fire that causes a rapid increase in temperature with little to no smoke.

Answer: B. A slow, smoldering fire that produces a large amount of smoke.

Explanation:

The correct answer is a slow, smoldering fire that produces a large amount of smoke. A photoelectric detector shines light inside a chamber and reacts when smoke particles scatter that light onto a sensor. Smoldering fires give off large particles, which scatter light well.

A fast flammable-liquid fire and a fire with a rapid temperature rise and little smoke are the kind of fast, flaming events that other detection methods suit better, so those options are wrong. A commercial kitchen with high ambient heat is a poor match for any smoke detector because of nuisance alarms, and heat is the deciding factor there, so that option is wrong.

Rule to remember: photoelectric for smoldering smoke, heat-based detection for rapid temperature rise.

Example 3

Question: In most US jurisdictions, which agency enforces fire alarm system code compliance in existing commercial buildings?

1. EPA regional office
2. State insurance commission
3. Local fire marshal or fire prevention bureau
4. OSHA area office

Answer: C. Local fire marshal or fire prevention bureau

Explanation:

The correct answer is the local fire marshal or fire prevention bureau. Fire alarm code compliance in existing commercial buildings is a local fire-safety matter, and the fire authority inspects, approves and enforces it.

An EPA regional office deals with environmental regulation, not building fire alarms, so that option is wrong. A state insurance commission regulates insurers and may care about fire protection, but it does not enforce the fire alarm code in buildings. An OSHA area office covers workplace safety rules for employees, not the fire alarm code for the building.

Rule to remember: when a question asks who enforces fire alarm code locally, think of the fire department or fire prevention authority. For this exam, the official body is the FDNY.

How to use these practice tests

Start with the official FDNY S95 study materials. They are the source for what the exam covers, and our practice sets work best as a way to test what you have read.

Then take the short topic sets, one at a time. Begin with FACP and signal types, supervisory and trouble signals and alarm initiating devices, since they cover how a system detects and reports problems. Add notification appliances and system components and power when those feel steady.

Move on to the duty side: S-95 holder responsibilities, emergency response procedures and inspection and testing procedures.

After each set, read the explanation for every question you missed and go back to the matching section of the official material. Keep a short list of recurring mistakes. Before test day, take the full practice test in one sitting with the timer on, and treat it as a check on pacing as well as knowledge. Our questions are written by us and are not real exam questions.

Certificate Supervision of Fire Alarm Systems and Other Related Systems

In addition to the S-95 certification, there are other certifications related to the supervision of fire alarm systems and related safety systems. These certifications ensure that personnel are adequately trained to handle various aspects of fire and life safety systems within buildings.

Some of these related certifications include:

• F-89 Certificate of Fitness for Fire Life and Safety Director: This certification is for individuals responsible for managing comprehensive fire safety and emergency action plans in large buildings.

• S-12/S-13 Certificate of Fitness for Citywide Sprinkler System: This certification is for individuals who oversee the installation, maintenance, and testing of sprinkler systems in buildings.

• S-97 Certificate of Fitness for Supervision of Smoke Detectors: This certification focuses on the supervision and maintenance of smoke detection systems within buildings.

These certifications often have similar application, training, and examination processes as the S-95 certification, ensuring that personnel are well-prepared to handle various fire safety systems.

Features of a Supervised Fire Alarm Systems

Supervised fire alarm systems have several key features that ensure their effectiveness in detecting and responding to fire emergencies. These features include:

• Continuous Monitoring: Supervised systems are continuously monitored, either locally or remotely, to ensure they are functioning correctly. This monitoring can detect issues such as power failures, system malfunctions, or tampering.

• Automatic Alerts: In the event of a fire, the system automatically sends alerts to building occupants and emergency services. This prompt notification is crucial for initiating evacuation procedures and ensuring a rapid response from the fire department.

• Regular Testing and Maintenance: Supervised fire alarm systems undergo regular testing and maintenance to ensure all components are operational. This includes testing smoke detectors, heat detectors, control panels, and communication systems.

Pros and Cons at a Glance

Sample Supervision of Fire Alarm System Practice Questions

Try these questions from our free Supervision of Fire Alarm System practice tests. The correct answer and an explanation follow each question.

1. A manual pull station must be installed at what height above the finished floor per NFPA 72?

   • A. Between 2.5 and 4 feet
   • B. Between 3.5 and 5 feet
   • C. Between 42 and 54 inches
   • D. Between 48 and 60 inches

Answer: C. Between 42 and 54 inches

NFPA 72 requires manual pull stations to be mounted with the operable part between 42 inches (3.5 ft) and 54 inches (4.5 ft) above the finished floor.

Answer: B. Lift a cover and then pull the handle

Double-action pull stations require lifting, breaking, or opening a protective cover before the handle can be pulled, reducing accidental activations.

Answer: B. Correct the deficiency within the specified time frame and notify the AHJ

Building owners must correct cited deficiencies within the AHJ's specified time frame and confirm compliance to avoid further enforcement action.

Answer: B. Audible notification has been silenced but visual indicators and alarm condition remain active

Silencing only quiets audible appliances; the FACU remains in alarm condition with visual indicators active until the system is fully reset.

Take the full Supervision of Fire Alarm System practice test

Sources & last verified

1. Fire Department of the City of New York (FDNY), Public Certification Unit — number of questions, time limit, passing score, delivery (official source). “The S-95 exam will consist of 35 multiple-choice questions, administered on a “touch screen” computer monitor.” Verified Oct 25, 2026.
2. Fire Department of the City of New York (FDNY), Public Certification Unit — exam fee, validity, renewal (official source). “New Application Fees: $25” Verified Oct 25, 2026.
3. Fire Department of the City of New York (FDNY), Public Certification Unit — retake policy, eligibility, score release, testing window (official source). “Applicants caught cheating or attempting to cheat on the exam(s) may be barred/blocked up to six (6) months from taking any COF exam and may…” Verified Oct 25, 2026.

How we verify: editorial & fact-checking policy. Report an error: contact us.