Electronic Security Technician
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
Download Pdf
1. Which device is primarily used to detect unauthorized entry in a building?
A. Smoke detector
B. Motion detector
C. Thermostat
D. Relay
B. Motion detector
Rationale: Motion detectors sense movement within a protected area,
triggering alarms when unauthorized entry occurs.
2. What is the purpose of a control panel in an electronic security system?
A. Provide backup power
B. Centralize system monitoring and control
C. Detect fire
D. Emit siren sound
B. Centralize system monitoring and control
Rationale: The control panel is the central hub, receiving input from
sensors and activating alarms or notifications.
,3. Which type of alarm is activated when glass is broken?
A. Magnetic contact alarm
B. Vibration or glass-break sensor
C. Smoke alarm
D. PIR sensor
B. Vibration or glass-break sensor
Rationale: Glass-break sensors detect the frequency or vibration of
breaking glass and trigger an alarm.
4. What does “PIR” stand for in motion detection?
A. Passive Infrared
B. Primary Interference Relay
C. Peripheral Input Receiver
D. Power Input Resistor
A. Passive Infrared
Rationale: PIR sensors detect heat emitted from humans or animals and
are commonly used in motion detection.
5. Which type of wiring is most commonly used for security system sensors?
A. Fiber optic
B. Coaxial
C. Twisted-pair
D. HDMI
C. Twisted-pair
Rationale: Twisted-pair cables reduce electromagnetic interference and
are standard for security system connections.
6. In CCTV systems, what does “PTZ” refer to?
A. Power Transfer Zone
B. Pan-Tilt-Zoom camera
C. Passive Thermal Zone
D. Pre-Test Zone
B. Pan-Tilt-Zoom camera
, Rationale: PTZ cameras can move horizontally (pan), vertically (tilt), and
zoom to focus on specific areas.
7. What is the main function of a siren in a security system?
A. Record activity
B. Notify of an intrusion
C. Detect motion
D. Power sensors
B. Notify of an intrusion
Rationale: Sirens alert occupants and deter intruders by emitting a loud
audible warning.
8. Which type of access control system uses a keycard?
A. Biometric
B. Mechanical lock
C. Proximity card system
D. Password only
C. Proximity card system
Rationale: Proximity card systems allow access when the card is presented
near a reader.
9. What does NVR stand for in video surveillance?
A. Network Video Recorder
B. Neutral Voltage Relay
C. Non-Volatile Register
D. Numeric Video Receiver
A. Network Video Recorder
Rationale: NVRs record video from IP cameras over a network, storing
footage digitally.
10.Which type of sensor is most effective in detecting intruders in total
darkness?
A. PIR sensor
B. Ultrasonic sensor
C. Microwave sensor
Certification Exam Practice Questions
And Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A Instant
Download Pdf
1. Which device is primarily used to detect unauthorized entry in a building?
A. Smoke detector
B. Motion detector
C. Thermostat
D. Relay
B. Motion detector
Rationale: Motion detectors sense movement within a protected area,
triggering alarms when unauthorized entry occurs.
2. What is the purpose of a control panel in an electronic security system?
A. Provide backup power
B. Centralize system monitoring and control
C. Detect fire
D. Emit siren sound
B. Centralize system monitoring and control
Rationale: The control panel is the central hub, receiving input from
sensors and activating alarms or notifications.
,3. Which type of alarm is activated when glass is broken?
A. Magnetic contact alarm
B. Vibration or glass-break sensor
C. Smoke alarm
D. PIR sensor
B. Vibration or glass-break sensor
Rationale: Glass-break sensors detect the frequency or vibration of
breaking glass and trigger an alarm.
4. What does “PIR” stand for in motion detection?
A. Passive Infrared
B. Primary Interference Relay
C. Peripheral Input Receiver
D. Power Input Resistor
A. Passive Infrared
Rationale: PIR sensors detect heat emitted from humans or animals and
are commonly used in motion detection.
5. Which type of wiring is most commonly used for security system sensors?
A. Fiber optic
B. Coaxial
C. Twisted-pair
D. HDMI
C. Twisted-pair
Rationale: Twisted-pair cables reduce electromagnetic interference and
are standard for security system connections.
6. In CCTV systems, what does “PTZ” refer to?
A. Power Transfer Zone
B. Pan-Tilt-Zoom camera
C. Passive Thermal Zone
D. Pre-Test Zone
B. Pan-Tilt-Zoom camera
, Rationale: PTZ cameras can move horizontally (pan), vertically (tilt), and
zoom to focus on specific areas.
7. What is the main function of a siren in a security system?
A. Record activity
B. Notify of an intrusion
C. Detect motion
D. Power sensors
B. Notify of an intrusion
Rationale: Sirens alert occupants and deter intruders by emitting a loud
audible warning.
8. Which type of access control system uses a keycard?
A. Biometric
B. Mechanical lock
C. Proximity card system
D. Password only
C. Proximity card system
Rationale: Proximity card systems allow access when the card is presented
near a reader.
9. What does NVR stand for in video surveillance?
A. Network Video Recorder
B. Neutral Voltage Relay
C. Non-Volatile Register
D. Numeric Video Receiver
A. Network Video Recorder
Rationale: NVRs record video from IP cameras over a network, storing
footage digitally.
10.Which type of sensor is most effective in detecting intruders in total
darkness?
A. PIR sensor
B. Ultrasonic sensor
C. Microwave sensor
