CO Security Systems Contractor
Exam Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a security system’s control panel?
A. To power outdoor lighting
B. To store system user manuals
C. To manage, process, and coordinate all system inputs and outputs
D. To measure AC voltage
Rationale: The control panel functions as the central processor,
coordinating all components of the security system.
2. Which NFPA standard governs fire alarm and signaling systems?
A. NFPA 25
B. NFPA 80
C. NFPA 72
D. NFPA 90A
Rationale: NFPA 72 is the National Fire Alarm and Signaling Code used
widely in security/fire integration.
3. What cable is most commonly used for CCTV analog systems?
A. Cat6A
B. RG59 coaxial cable
C. Fiber SC
,D. THHN
Rationale: RG59 is standard for analog CCTV due to its impedance and
signal characteristics.
4. What does PoE provide to IP cameras?
A. Only data
B. Power and data over one cable
C. Only backup power
D. Wireless signal
Rationale: PoE combines power and data transmission via Ethernet,
simplifying installation.
5. Which device stores video footage in digital format for IP surveillance
systems?
A. DVR
B. VCR
C. NVR
D. Cloud gateway
Rationale: NVRs store digital video from IP cameras over the network.
6. Access control credentials include which of the following?
A. Concrete blocks
B. Metal rods
C. Cards, PINs, biometrics
D. HVAC filters
Rationale: Access control uses cards, PIN codes, and biometric identifiers.
7. Which NEC article covers low-voltage and communication circuits?
A. Article 210
B. Article 230
C. Article 725
D. Article 680
Rationale: NEC Article 725 governs low-voltage and Class 1–3 circuits
used in security systems.
, 8. Which type of camera adjusts automatically for bright and dark
areas?
A. Fixed iris
B. Manual zoom
C. WDR (Wide Dynamic Range)
D. Wireless analog
Rationale: WDR technology balances exposure in varying lighting
conditions.
9. What is the purpose of a door strike in an access control system?
A. To sound alarms
B. To detect motion
C. To electronically secure or release a door
D. To monitor temperature
Rationale: Electric strikes enable controlled door access electronically.
10. In intrusion systems, a PIR detects what?
A. Sound
B. Glass breakage
C. Infrared heat changes
D. Water leaks
Rationale: PIR sensors detect movement by sensing infrared radiation
changes.
11. A UPS in a security system provides:
A. Extra lighting
B. Cooling
C. Short-term power backup
D. Internet access
Rationale: A UPS supplies temporary power during outages to keep systems
operating.
12. The term “line-of-sight” refers to which transmission type?
Exam Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. What is the primary purpose of a security system’s control panel?
A. To power outdoor lighting
B. To store system user manuals
C. To manage, process, and coordinate all system inputs and outputs
D. To measure AC voltage
Rationale: The control panel functions as the central processor,
coordinating all components of the security system.
2. Which NFPA standard governs fire alarm and signaling systems?
A. NFPA 25
B. NFPA 80
C. NFPA 72
D. NFPA 90A
Rationale: NFPA 72 is the National Fire Alarm and Signaling Code used
widely in security/fire integration.
3. What cable is most commonly used for CCTV analog systems?
A. Cat6A
B. RG59 coaxial cable
C. Fiber SC
,D. THHN
Rationale: RG59 is standard for analog CCTV due to its impedance and
signal characteristics.
4. What does PoE provide to IP cameras?
A. Only data
B. Power and data over one cable
C. Only backup power
D. Wireless signal
Rationale: PoE combines power and data transmission via Ethernet,
simplifying installation.
5. Which device stores video footage in digital format for IP surveillance
systems?
A. DVR
B. VCR
C. NVR
D. Cloud gateway
Rationale: NVRs store digital video from IP cameras over the network.
6. Access control credentials include which of the following?
A. Concrete blocks
B. Metal rods
C. Cards, PINs, biometrics
D. HVAC filters
Rationale: Access control uses cards, PIN codes, and biometric identifiers.
7. Which NEC article covers low-voltage and communication circuits?
A. Article 210
B. Article 230
C. Article 725
D. Article 680
Rationale: NEC Article 725 governs low-voltage and Class 1–3 circuits
used in security systems.
, 8. Which type of camera adjusts automatically for bright and dark
areas?
A. Fixed iris
B. Manual zoom
C. WDR (Wide Dynamic Range)
D. Wireless analog
Rationale: WDR technology balances exposure in varying lighting
conditions.
9. What is the purpose of a door strike in an access control system?
A. To sound alarms
B. To detect motion
C. To electronically secure or release a door
D. To monitor temperature
Rationale: Electric strikes enable controlled door access electronically.
10. In intrusion systems, a PIR detects what?
A. Sound
B. Glass breakage
C. Infrared heat changes
D. Water leaks
Rationale: PIR sensors detect movement by sensing infrared radiation
changes.
11. A UPS in a security system provides:
A. Extra lighting
B. Cooling
C. Short-term power backup
D. Internet access
Rationale: A UPS supplies temporary power during outages to keep systems
operating.
12. The term “line-of-sight” refers to which transmission type?
