Alabama Burglar Alarm Installer Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. The primary purpose of a burglar alarm system is to:
A. Control lighting
B. Detect unauthorized entry and alert occupants or monitoring
personnel
C. Improve internet connectivity
D. Reduce electrical consumption
Answer: B. Detect unauthorized entry and alert occupants or monitoring
personnel
Rationale: A burglar alarm system is designed to detect unauthorized
access and initiate an alarm or notification to improve property security.
, 2. Which device is commonly used to detect the opening of a door or
window?
A. Smoke detector
B. Glass block
C. Magnetic contact switch
D. Heat detector
Answer: C. Magnetic contact switch
Rationale: Magnetic contacts consist of a magnet and reed switch that
change state when a protected opening is opened.
3. A passive infrared (PIR) detector primarily senses:
A. Sound waves
B. Changes in infrared energy caused by moving objects
C. Magnetic fields
D. Air pressure
Answer: B. Changes in infrared energy caused by moving objects
Rationale: PIR detectors identify movement by sensing changes in heat
energy within their coverage area.
, 4. The control panel in a burglar alarm system serves as the:
A. Power transformer
B. Central processing unit of the system
C. Motion detector
D. Backup siren
Answer: B. Central processing unit of the system
Rationale: The control panel receives signals, processes events, and
activates alarms or communications.
5. End-of-line resistors are primarily used to:
A. Increase voltage
B. Supervise circuit integrity
C. Reduce battery charging time
D. Improve Wi-Fi reception
Answer: B. Supervise circuit integrity
Rationale: End-of-line resistors help detect wiring faults such as opens and
shorts on supervised circuits.
, 6. A normally closed alarm circuit is considered secure when:
A. The circuit is open
B. The circuit is closed
C. The battery is disconnected
D. The siren is sounding
Answer: B. The circuit is closed
Rationale: In a normally closed circuit, current flows continuously until the
circuit is interrupted by an alarm or fault.
7. Which power source provides backup during a utility power failure?
A. Solar panel
B. Generator only
C. Rechargeable standby battery
D. USB charger
Answer: C. Rechargeable standby battery
Rationale: Standby batteries maintain alarm operation when AC power is
unavailable.
Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. The primary purpose of a burglar alarm system is to:
A. Control lighting
B. Detect unauthorized entry and alert occupants or monitoring
personnel
C. Improve internet connectivity
D. Reduce electrical consumption
Answer: B. Detect unauthorized entry and alert occupants or monitoring
personnel
Rationale: A burglar alarm system is designed to detect unauthorized
access and initiate an alarm or notification to improve property security.
, 2. Which device is commonly used to detect the opening of a door or
window?
A. Smoke detector
B. Glass block
C. Magnetic contact switch
D. Heat detector
Answer: C. Magnetic contact switch
Rationale: Magnetic contacts consist of a magnet and reed switch that
change state when a protected opening is opened.
3. A passive infrared (PIR) detector primarily senses:
A. Sound waves
B. Changes in infrared energy caused by moving objects
C. Magnetic fields
D. Air pressure
Answer: B. Changes in infrared energy caused by moving objects
Rationale: PIR detectors identify movement by sensing changes in heat
energy within their coverage area.
, 4. The control panel in a burglar alarm system serves as the:
A. Power transformer
B. Central processing unit of the system
C. Motion detector
D. Backup siren
Answer: B. Central processing unit of the system
Rationale: The control panel receives signals, processes events, and
activates alarms or communications.
5. End-of-line resistors are primarily used to:
A. Increase voltage
B. Supervise circuit integrity
C. Reduce battery charging time
D. Improve Wi-Fi reception
Answer: B. Supervise circuit integrity
Rationale: End-of-line resistors help detect wiring faults such as opens and
shorts on supervised circuits.
, 6. A normally closed alarm circuit is considered secure when:
A. The circuit is open
B. The circuit is closed
C. The battery is disconnected
D. The siren is sounding
Answer: B. The circuit is closed
Rationale: In a normally closed circuit, current flows continuously until the
circuit is interrupted by an alarm or fault.
7. Which power source provides backup during a utility power failure?
A. Solar panel
B. Generator only
C. Rechargeable standby battery
D. USB charger
Answer: C. Rechargeable standby battery
Rationale: Standby batteries maintain alarm operation when AC power is
unavailable.
