Exam Questions And Correct Answers

Alarm System Installer Licensing Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary purpose of an alarm system?
• To replace law enforcement
• To detect and alert of unauthorized entry or hazards
• To monitor building temperature
• To control lighting

Rationale: The main function of alarm systems is to detect intrusions, fire,

or other hazards and provide alerts for security and safety.

• Which of the following is a key component of a burglar alarm system?
• Air pressure sensor
• Motion detector
• Smoke detector
• Fire alarm bell 1 / 4

Rationale: Burglar alarms commonly use motion detectors to sense

unauthorized movement within a protected area.

3. The control panel in an alarm system primarily functions to:

• Supply power to the sensors
• Process signals from sensors and activate alarms
• Store video footage
• Control building lighting

Rationale: The control panel receives and interprets input from sensors and

triggers alarm outputs accordingly.

4. A closed-circuit alarm loop means:

• The circuit is connected to external networks
• The circuit is complete under normal conditions
• The circuit is broken during normal conditions
• The system uses wireless signals

Rationale: In a closed-circuit loop, the electrical path is complete until

interrupted by intrusion, triggering the alarm.

• What type of sensor detects the breaking of glass?
• Ultrasonic sensor
• Acoustic sensor 2 / 4

• Infrared sensor
• Temperature sensor

Rationale: Acoustic sensors detect specific sound frequencies produced

when glass breaks.

• Which power supply component provides backup in case of main power

failure?

• Transformer
• Battery backup
• Voltage regulator
• Rectifier

Rationale: A backup battery ensures continuous operation when primary

power is lost.

7. NFPA 72 primarily governs:

• Electrical wiring methods
• Fire alarm systems installation and maintenance
• Burglar alarm licensing
• CCTV operations

Rationale: NFPA 72 is the National Fire Alarm and Signaling Code, outlining

fire alarm system standards.

• / 4

• What type of cable is commonly used for alarm circuits?
• Coaxial
• Twisted pair
• Fiber optic
• Flat ribbon

Rationale: Twisted pair cable reduces electromagnetic interference and is

standard for alarm wiring.

• Which of the following provides protection against voltage surges?
• Breaker
• Fuse
• Surge protector
• Transformer

Rationale: Surge protectors divert excess voltage to prevent damage to

system components.

10. A Normally Closed (NC) contact in an alarm circuit will:

• Be open when system is armed
• Stay closed until an alarm condition occurs
• Stay open under all conditions
• Require manual reset

Rationale: NC contacts maintain a closed path until the circuit is

interrupted by intrusion or fault.

• / 4