AR FA Fire Alarm Contractor Exam –
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a fire alarm system?
A. To control building temperature
B. To provide early warning of fire
C. To suppress fires automatically
D. To provide lighting during emergencies
Answer: B. To provide early warning of fire
Rationale: The main function of a fire alarm system is to detect fire early
and alert occupants and emergency services to allow safe evacuation.
2. Which NFPA standard specifically covers the installation of fire alarm
systems?
A. NFPA 70
B. NFPA 101
C. NFPA 72
D. NFPA 25
Answer: C. NFPA 72
Rationale: NFPA 72 is the National Fire Alarm and Signaling Code that
provides the guidelines for installation, performance, and maintenance of fire
alarm systems.
3. A smoke detector that uses a light source and a photocell to detect
smoke is called:
A. Ionization detector
,B. Photoelectric detector
C. Heat detector
D. Combination detector
Answer: B. Photoelectric detector
Rationale: Photoelectric detectors sense smoke by detecting light scattered
by smoke particles in the detection chamber.
4. Which type of fire alarm initiating device responds to rapid increases
in temperature?
A. Rate-of-rise heat detector
B. Fixed temperature heat detector
C. Smoke detector
D. Manual pull station
Answer: A. Rate-of-rise heat detector
Rationale: Rate-of-rise detectors activate when the temperature rises rapidly
over a short period, indicating the presence of a fire.
5. What is the purpose of a fire alarm control panel (FACP)?
A. To detect smoke only
B. To provide central control and monitoring of all fire alarm devices
C. To supply water to sprinklers
D. To sound the building bells only
Answer: B. To provide central control and monitoring of all fire alarm
devices
Rationale: The FACP is the brain of the fire alarm system, receiving signals
from detectors and initiating appropriate responses such as alarms or
notifications.
6. In a fire alarm system, a device that allows occupants to manually
signal a fire is called:
A. Smoke detector
B. Manual pull station
C. Heat detector
D. Notification appliance
, Answer: B. Manual pull station
Rationale: Manual pull stations allow building occupants to manually
trigger the fire alarm system in case they detect a fire before automated
devices.
7. Which of the following is a common power source for fire alarm
systems?
A. Solar power only
B. 120/240V AC primary with battery backup
C. Gas generator only
D. None of the above
Answer: B. 120/240V AC primary with battery backup
Rationale: Fire alarm systems require a primary AC power source with
battery backup to ensure continuous operation during power failures.
8. Which device is typically used to alert occupants visually in a fire
alarm system?
A. Horn
B. Strobe light
C. Bell
D. Smoke detector
Answer: B. Strobe light
Rationale: Visual notification appliances, like strobes, are used to alert
occupants who may have hearing impairments or in noisy environments.
9. What is the maximum spacing allowed for a smoke detector in a
typical ceiling-mounted application according to NFPA 72?
A. 10 feet
B. 30 feet
C. 50 feet
D. 100 feet
Answer: B. 30 feet
Rationale: NFPA 72 specifies a maximum spacing of 30 feet for smoke
detectors on ceilings to ensure adequate coverage.
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a fire alarm system?
A. To control building temperature
B. To provide early warning of fire
C. To suppress fires automatically
D. To provide lighting during emergencies
Answer: B. To provide early warning of fire
Rationale: The main function of a fire alarm system is to detect fire early
and alert occupants and emergency services to allow safe evacuation.
2. Which NFPA standard specifically covers the installation of fire alarm
systems?
A. NFPA 70
B. NFPA 101
C. NFPA 72
D. NFPA 25
Answer: C. NFPA 72
Rationale: NFPA 72 is the National Fire Alarm and Signaling Code that
provides the guidelines for installation, performance, and maintenance of fire
alarm systems.
3. A smoke detector that uses a light source and a photocell to detect
smoke is called:
A. Ionization detector
,B. Photoelectric detector
C. Heat detector
D. Combination detector
Answer: B. Photoelectric detector
Rationale: Photoelectric detectors sense smoke by detecting light scattered
by smoke particles in the detection chamber.
4. Which type of fire alarm initiating device responds to rapid increases
in temperature?
A. Rate-of-rise heat detector
B. Fixed temperature heat detector
C. Smoke detector
D. Manual pull station
Answer: A. Rate-of-rise heat detector
Rationale: Rate-of-rise detectors activate when the temperature rises rapidly
over a short period, indicating the presence of a fire.
5. What is the purpose of a fire alarm control panel (FACP)?
A. To detect smoke only
B. To provide central control and monitoring of all fire alarm devices
C. To supply water to sprinklers
D. To sound the building bells only
Answer: B. To provide central control and monitoring of all fire alarm
devices
Rationale: The FACP is the brain of the fire alarm system, receiving signals
from detectors and initiating appropriate responses such as alarms or
notifications.
6. In a fire alarm system, a device that allows occupants to manually
signal a fire is called:
A. Smoke detector
B. Manual pull station
C. Heat detector
D. Notification appliance
, Answer: B. Manual pull station
Rationale: Manual pull stations allow building occupants to manually
trigger the fire alarm system in case they detect a fire before automated
devices.
7. Which of the following is a common power source for fire alarm
systems?
A. Solar power only
B. 120/240V AC primary with battery backup
C. Gas generator only
D. None of the above
Answer: B. 120/240V AC primary with battery backup
Rationale: Fire alarm systems require a primary AC power source with
battery backup to ensure continuous operation during power failures.
8. Which device is typically used to alert occupants visually in a fire
alarm system?
A. Horn
B. Strobe light
C. Bell
D. Smoke detector
Answer: B. Strobe light
Rationale: Visual notification appliances, like strobes, are used to alert
occupants who may have hearing impairments or in noisy environments.
9. What is the maximum spacing allowed for a smoke detector in a
typical ceiling-mounted application according to NFPA 72?
A. 10 feet
B. 30 feet
C. 50 feet
D. 100 feet
Answer: B. 30 feet
Rationale: NFPA 72 specifies a maximum spacing of 30 feet for smoke
detectors on ceilings to ensure adequate coverage.
