AZ L-70 FIRE ALARM SYSTEMS
CONTRACTOR Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
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Question 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 a building
D. To replace the building's emergency lighting
Answer: B. To provide early notification of a fire or fire-related emergency
Rationale: A fire alarm system detects specified conditions and provides
notification so occupants and emergency personnel can respond promptly.
Question 2
,Which NFPA standard is primarily associated with fire alarm and signaling
systems?
A. NFPA 10
B. NFPA 13
C. NFPA 72
D. NFPA 70E
Answer: C. NFPA 72
Rationale: NFPA 72, the National Fire Alarm and Signaling Code,
establishes requirements for fire alarm and signaling systems, including
installation, inspection, testing, and maintenance.
Question 3
What is the main function of a fire alarm control unit (FACU)?
A. Store water for sprinklers
B. Monitor initiating devices and control notification and other system
functions
C. Provide building heating
D. Replace the electrical service panel
Answer: B. Monitor initiating devices and control notification and other
system functions
,Rationale: The FACU receives signals from initiating devices and
supervises, processes, and controls connected fire alarm functions.
Question 4
Which device is designed primarily to detect smoke particles?
A. Heat detector
B. Smoke detector
C. Manual pull station
D. Waterflow switch
Answer: B. Smoke detector
Rationale: Smoke detectors respond to products of combustion suspended
in the air, providing early detection in appropriate applications.
Question 5
What does a manual fire alarm box allow an occupant to do?
A. Reset the fire alarm panel
B. Manually initiate an alarm signal
C. Silence the building's electrical system
D. Shut down all HVAC equipment automatically
Answer: B. Manually initiate an alarm signal
, Rationale: A manual fire alarm box, commonly called a pull station, allows
a person to initiate the fire alarm system manually.
Question 6
What is the purpose of supervision in a fire alarm circuit?
A. Increase voltage to notification appliances
B. Detect certain abnormal conditions such as opens or other faults
C. Prevent all false alarms
D. Provide emergency lighting
Answer: B. Detect certain abnormal conditions such as opens or other
faults
Rationale: Supervision allows the control unit to identify specified circuit or
equipment faults so they can be corrected before an emergency occurs.
Question 7
A trouble signal on a fire alarm control unit generally indicates:
A. A confirmed fire
B. A supervisory condition only
C. An abnormal system condition requiring attention
D. Normal operation
Answer: C. An abnormal system condition requiring attention
CONTRACTOR Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2027 Q&A | Instant
Download Pdf
Question 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 a building
D. To replace the building's emergency lighting
Answer: B. To provide early notification of a fire or fire-related emergency
Rationale: A fire alarm system detects specified conditions and provides
notification so occupants and emergency personnel can respond promptly.
Question 2
,Which NFPA standard is primarily associated with fire alarm and signaling
systems?
A. NFPA 10
B. NFPA 13
C. NFPA 72
D. NFPA 70E
Answer: C. NFPA 72
Rationale: NFPA 72, the National Fire Alarm and Signaling Code,
establishes requirements for fire alarm and signaling systems, including
installation, inspection, testing, and maintenance.
Question 3
What is the main function of a fire alarm control unit (FACU)?
A. Store water for sprinklers
B. Monitor initiating devices and control notification and other system
functions
C. Provide building heating
D. Replace the electrical service panel
Answer: B. Monitor initiating devices and control notification and other
system functions
,Rationale: The FACU receives signals from initiating devices and
supervises, processes, and controls connected fire alarm functions.
Question 4
Which device is designed primarily to detect smoke particles?
A. Heat detector
B. Smoke detector
C. Manual pull station
D. Waterflow switch
Answer: B. Smoke detector
Rationale: Smoke detectors respond to products of combustion suspended
in the air, providing early detection in appropriate applications.
Question 5
What does a manual fire alarm box allow an occupant to do?
A. Reset the fire alarm panel
B. Manually initiate an alarm signal
C. Silence the building's electrical system
D. Shut down all HVAC equipment automatically
Answer: B. Manually initiate an alarm signal
, Rationale: A manual fire alarm box, commonly called a pull station, allows
a person to initiate the fire alarm system manually.
Question 6
What is the purpose of supervision in a fire alarm circuit?
A. Increase voltage to notification appliances
B. Detect certain abnormal conditions such as opens or other faults
C. Prevent all false alarms
D. Provide emergency lighting
Answer: B. Detect certain abnormal conditions such as opens or other
faults
Rationale: Supervision allows the control unit to identify specified circuit or
equipment faults so they can be corrected before an emergency occurs.
Question 7
A trouble signal on a fire alarm control unit generally indicates:
A. A confirmed fire
B. A supervisory condition only
C. An abnormal system condition requiring attention
D. Normal operation
Answer: C. An abnormal system condition requiring attention
