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WorksheetsRevision paper
Total questions: 13
Worksheet time: 7mins
What is one of the key evidence collection component of a CCTV system?
Camera lenses
Lighting devices
Recording devices.
Wireless transmission systems
What is the definition of field of view (FOV) in the context of selecting a camera?
The brightness or darkness of an image
The number of pixels that make up an image
The area of coverage and degree of detail visible in a camera's image
The distance between the camera and the subject being photographed
How many frames per second does the PAL standard support?
25 frames per second
30 frames per second
50 frames per second
75 frames per second
What device is used to digitize and compress the video from analogue cameras in a network video system?
Network switch
Video encoder
Cable
Video management software
Which one of the following surveillance cameras is most suitable for low light environment?
Fixed camera
Infrared camera
Pan Tilt camera
Thermal camera
Which of the following is a key component of a CCTV wireless system?
Cameras
Lenses
Access Point
Recording devices
What system is the initial step in converting an analog video signal from an analog camera to digital format?
Video encorder based Network Video System.
Network camera based Network Video System.
Network digital video record based analogue CCTV System.
Video Cassette Recorder (VCR) based analogue CCTV System.
Which image scanning techniques is suitable for fast-moving objects?
Interlaced scanning
Analog scanning
Digital scanning
Progressive scanning
How do Neutral Density (ND) filters affect the color of light captured by the camera and lens?
ND filters increase the brightness and vibrancy of colors in the image
ND filters decrease the brightness and vibrancy of colors in the image
ND filters completely eliminate colors from the image
ND filters do not alter the color of light captured by the camera and lens
What is LUX, in the context of surveillance systems?
A measure of distance between a camera and its target
A measure of the amount of light cast by one candle at one meter space
A measure of the amount of heat generated by a light source
A measure of the resolution of a camera image.
What is the purpose of the milestones mentioned in the video commissioning statement?
To outline the total cost involved in deploying the system
To order equipment deliveries and assign a timetable for specific tasks
To identify the division of responsibilities between vendor and customer
To verify that the end of the project
What are the two types of conduit mentioned in the passage for minimizing the risk of damage to cables during installation?
PVC and wood
Galvanised Iron and PVC
Galvanised Iron and Steel
Metallic and non-metallic types
What is the consequence of having different grounds at each point of an installation or the lack of them, according to the passage?
It can cause the system to work improperly
It can lead to the failure of the equipment
It can result in a loss of power to the system
It can cause serious interference problems
