CT CCTV Systems Contractor
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A| Instant Download Pdf
1. Which of the following is the primary purpose of a CCTV system?
A. To provide audio surveillance
B. To prevent electrical fires
C. To monitor and record visual activity for security purposes
D. To provide internet connectivity
Rationale: CCTV systems are designed to monitor and record visual activity
for security and surveillance purposes.
2. What does PTZ stand for in CCTV terminology?
A. Passive Tracking Zoom
B. Pan-Tilt-Zoom
C. Professional Telemetry Zone
D. Precision Timing Zoom
Rationale: PTZ cameras can pan, tilt, and zoom to cover large areas and
track objects.
3. Which camera type is best suited for low-light conditions?
A. Dome camera
B. Bullet camera
C. Infrared (IR) camera
D. PTZ camera
Rationale: Infrared cameras are equipped with IR LEDs to capture images
in low-light or no-light conditions.
, 4. What is the standard video resolution for HD CCTV cameras?
A. 480p
B. 720p
C. 1080i
D. 4K
Rationale: HD CCTV cameras are typically 720p, though 1080p and higher
resolutions are available.
5. Which transmission medium provides the longest distance for
analog CCTV signals without amplification?
A. Fiber optic cable
B. Coaxial cable
C. Twisted pair
D. HDMI cable
Rationale: Coaxial cables can transmit analog video signals over longer
distances than twisted pair or standard HDMI without repeaters.
6. What is the main advantage of IP cameras over analog cameras?
A. Lower cost
B. Ability to transmit video over networks and support higher
resolutions
C. No need for electricity
D. They do not require storage
Rationale: IP cameras can transmit video over Ethernet networks, allow
remote access, and often provide higher resolutions.
7. What does DVR stand for in CCTV systems?
A. Digital Video Router
B. Digital Video Recorder
C. Direct Video Receiver
D. Data Video Resource
Rationale: A DVR records and stores video from analog CCTV cameras.
, 8. Which CCTV component converts video from IP cameras into a
format suitable for recording on a storage device?
A. DVR
B. NVR (Network Video Recorder)
C. Encoder
D. Switch
Rationale: NVRs record video from IP cameras over a network without
converting analog signals.
9. What is the primary function of a lens in a CCTV camera?
A. To record audio
B. To focus light onto the camera sensor
C. To provide PTZ functionality
D. To store video footage
Rationale: The lens focuses incoming light onto the camera sensor to form a
clear image.
10. Which lens type provides a fixed angle of view?
A. Varifocal lens
B. Zoom lens
C. Fixed lens
D. Fisheye lens
Rationale: Fixed lenses have a single, non-adjustable focal length that
determines the angle of view.
11. Which is a common frame rate for standard CCTV recording?
A. 12 fps
B. 15 fps
C. 30 fps D. 60 fps
Rationale: 30 frames per second is common for smooth video playback in
CCTV systems.
12. Which CCTV camera type is typically vandal-resistant?
, A. PTZ camera
B. Dome camera
C. Bullet camera
D. Box camera
Rationale: Dome cameras have a protective housing that resists tampering
and vandalism.
13. What is the primary safety standard for electrical components in
CCTV systems?
A. ISO 9001
B. OSHA
C. UL (Underwriters Laboratories)
D. FCC
Rationale: UL certification ensures that electrical components meet safety
standards.
14. Which of the following is used to extend the range of a CCTV
camera over twisted-pair cable?
A. Power injector
B. Video balun
C. Switch
D. NVR
Rationale: Video baluns allow analog CCTV signals to be transmitted over
twisted-pair cabling efficiently.
15. Which camera is best for discreet monitoring in retail settings?
A. Bullet camera
B. Dome camera
C. PTZ camera
D. Infrared camera
Rationale: Dome cameras are less noticeable and blend with the
environment, making them ideal for retail surveillance.
Exam Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A| Instant Download Pdf
1. Which of the following is the primary purpose of a CCTV system?
A. To provide audio surveillance
B. To prevent electrical fires
C. To monitor and record visual activity for security purposes
D. To provide internet connectivity
Rationale: CCTV systems are designed to monitor and record visual activity
for security and surveillance purposes.
2. What does PTZ stand for in CCTV terminology?
A. Passive Tracking Zoom
B. Pan-Tilt-Zoom
C. Professional Telemetry Zone
D. Precision Timing Zoom
Rationale: PTZ cameras can pan, tilt, and zoom to cover large areas and
track objects.
3. Which camera type is best suited for low-light conditions?
A. Dome camera
B. Bullet camera
C. Infrared (IR) camera
D. PTZ camera
Rationale: Infrared cameras are equipped with IR LEDs to capture images
in low-light or no-light conditions.
, 4. What is the standard video resolution for HD CCTV cameras?
A. 480p
B. 720p
C. 1080i
D. 4K
Rationale: HD CCTV cameras are typically 720p, though 1080p and higher
resolutions are available.
5. Which transmission medium provides the longest distance for
analog CCTV signals without amplification?
A. Fiber optic cable
B. Coaxial cable
C. Twisted pair
D. HDMI cable
Rationale: Coaxial cables can transmit analog video signals over longer
distances than twisted pair or standard HDMI without repeaters.
6. What is the main advantage of IP cameras over analog cameras?
A. Lower cost
B. Ability to transmit video over networks and support higher
resolutions
C. No need for electricity
D. They do not require storage
Rationale: IP cameras can transmit video over Ethernet networks, allow
remote access, and often provide higher resolutions.
7. What does DVR stand for in CCTV systems?
A. Digital Video Router
B. Digital Video Recorder
C. Direct Video Receiver
D. Data Video Resource
Rationale: A DVR records and stores video from analog CCTV cameras.
, 8. Which CCTV component converts video from IP cameras into a
format suitable for recording on a storage device?
A. DVR
B. NVR (Network Video Recorder)
C. Encoder
D. Switch
Rationale: NVRs record video from IP cameras over a network without
converting analog signals.
9. What is the primary function of a lens in a CCTV camera?
A. To record audio
B. To focus light onto the camera sensor
C. To provide PTZ functionality
D. To store video footage
Rationale: The lens focuses incoming light onto the camera sensor to form a
clear image.
10. Which lens type provides a fixed angle of view?
A. Varifocal lens
B. Zoom lens
C. Fixed lens
D. Fisheye lens
Rationale: Fixed lenses have a single, non-adjustable focal length that
determines the angle of view.
11. Which is a common frame rate for standard CCTV recording?
A. 12 fps
B. 15 fps
C. 30 fps D. 60 fps
Rationale: 30 frames per second is common for smooth video playback in
CCTV systems.
12. Which CCTV camera type is typically vandal-resistant?
, A. PTZ camera
B. Dome camera
C. Bullet camera
D. Box camera
Rationale: Dome cameras have a protective housing that resists tampering
and vandalism.
13. What is the primary safety standard for electrical components in
CCTV systems?
A. ISO 9001
B. OSHA
C. UL (Underwriters Laboratories)
D. FCC
Rationale: UL certification ensures that electrical components meet safety
standards.
14. Which of the following is used to extend the range of a CCTV
camera over twisted-pair cable?
A. Power injector
B. Video balun
C. Switch
D. NVR
Rationale: Video baluns allow analog CCTV signals to be transmitted over
twisted-pair cabling efficiently.
15. Which camera is best for discreet monitoring in retail settings?
A. Bullet camera
B. Dome camera
C. PTZ camera
D. Infrared camera
Rationale: Dome cameras are less noticeable and blend with the
environment, making them ideal for retail surveillance.
