AZ L-70 Fire Alarm Systems Contractor Exam
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A| Instant
Download Pdf
1. What is the primary purpose of a fire alarm system?
a. To extinguish a fire automatically
b. To provide early notification of a fire or fire-related emergency
c. To provide electrical power to emergency lighting
d. To ventilate a building
Answer: b. To provide early notification of a fire or fire-related
emergency
Rationale: A fire alarm system is designed primarily to detect fire
conditions and notify occupants and responding personnel. Although
some systems can initiate suppression or control building equipment,
their fundamental function is detection, notification, and signaling.
, 2. Which component of a fire alarm system receives signals from
initiating devices and processes them?
a. Notification appliance
b. Fire alarm control panel
c. Manual pull station
d. Strobe
Answer: b. Fire alarm control panel
Rationale: The fire alarm control panel (FACP) is the central processing
unit of the system. It receives signals from initiating devices,
determines the condition represented by those signals, activates
appropriate outputs, and supervises system circuits.
3. Which device is specifically designed to detect visible particles
produced by combustion?
a. Heat detector
b. Smoke detector
c. Manual pull station
d. Waterflow switch
Answer: b. Smoke detector
Rationale: Smoke detectors sense products of combustion suspended
in the air. Photoelectric detectors are particularly responsive to visible
,smoke particles, while ionization detectors respond to combustion
particles using an ionization chamber.
4. What is the purpose of a manual fire alarm box?
a. To automatically control a sprinkler valve
b. To allow a person to manually initiate a fire alarm signal
c. To measure building temperature
d. To provide backup battery charging
Answer: b. To allow a person to manually initiate a fire alarm signal
Rationale: A manual fire alarm box, commonly called a pull station,
provides a means for a person who discovers a fire to initiate the
alarm without waiting for an automatic detector to operate.
5. Which type of fire alarm circuit is continuously monitored for
opens and certain wiring faults?
a. Supervised circuit
b. Unsupervised circuit
c. Lighting circuit
d. Convenience circuit
Answer: a. Supervised circuit
Rationale: Supervision allows the fire alarm control panel to detect
certain abnormal conditions, such as an open circuit or loss of
, connection. This helps ensure that system wiring and critical
components remain capable of performing their intended functions.
6. What condition generally indicates that a fire alarm system has
detected a fault that does not necessarily represent a fire?
a. Alarm
b. Supervisory
c. Trouble
d. Evacuation
Answer: c. Trouble
Rationale: A trouble condition indicates a problem affecting system
integrity or operation, such as an open circuit, ground fault, low
battery, or communication failure. A trouble signal is distinct from an
alarm signal.
7. A sprinkler waterflow switch is normally classified as what type of
initiating device?
a. Automatic initiating device
b. Manual initiating device
c. Notification appliance
d. Supervisory power supply
Answer: a. Automatic initiating device
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A| Instant
Download Pdf
1. What is the primary purpose of a fire alarm system?
a. To extinguish a fire automatically
b. To provide early notification of a fire or fire-related emergency
c. To provide electrical power to emergency lighting
d. To ventilate a building
Answer: b. To provide early notification of a fire or fire-related
emergency
Rationale: A fire alarm system is designed primarily to detect fire
conditions and notify occupants and responding personnel. Although
some systems can initiate suppression or control building equipment,
their fundamental function is detection, notification, and signaling.
, 2. Which component of a fire alarm system receives signals from
initiating devices and processes them?
a. Notification appliance
b. Fire alarm control panel
c. Manual pull station
d. Strobe
Answer: b. Fire alarm control panel
Rationale: The fire alarm control panel (FACP) is the central processing
unit of the system. It receives signals from initiating devices,
determines the condition represented by those signals, activates
appropriate outputs, and supervises system circuits.
3. Which device is specifically designed to detect visible particles
produced by combustion?
a. Heat detector
b. Smoke detector
c. Manual pull station
d. Waterflow switch
Answer: b. Smoke detector
Rationale: Smoke detectors sense products of combustion suspended
in the air. Photoelectric detectors are particularly responsive to visible
,smoke particles, while ionization detectors respond to combustion
particles using an ionization chamber.
4. What is the purpose of a manual fire alarm box?
a. To automatically control a sprinkler valve
b. To allow a person to manually initiate a fire alarm signal
c. To measure building temperature
d. To provide backup battery charging
Answer: b. To allow a person to manually initiate a fire alarm signal
Rationale: A manual fire alarm box, commonly called a pull station,
provides a means for a person who discovers a fire to initiate the
alarm without waiting for an automatic detector to operate.
5. Which type of fire alarm circuit is continuously monitored for
opens and certain wiring faults?
a. Supervised circuit
b. Unsupervised circuit
c. Lighting circuit
d. Convenience circuit
Answer: a. Supervised circuit
Rationale: Supervision allows the fire alarm control panel to detect
certain abnormal conditions, such as an open circuit or loss of
, connection. This helps ensure that system wiring and critical
components remain capable of performing their intended functions.
6. What condition generally indicates that a fire alarm system has
detected a fault that does not necessarily represent a fire?
a. Alarm
b. Supervisory
c. Trouble
d. Evacuation
Answer: c. Trouble
Rationale: A trouble condition indicates a problem affecting system
integrity or operation, such as an open circuit, ground fault, low
battery, or communication failure. A trouble signal is distinct from an
alarm signal.
7. A sprinkler waterflow switch is normally classified as what type of
initiating device?
a. Automatic initiating device
b. Manual initiating device
c. Notification appliance
d. Supervisory power supply
Answer: a. Automatic initiating device
