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WorksheetsChapter 6 & 7
Total questions: 11
Worksheet time: 6mins
What is the advantage of using an HDMI connector in a network video system?
It can transmit uncompressed digital video
It can transmit audio and video
It is an analog connector
It is cheap
What type of connector is typically used to connect analogue cameras to a monitor in a video surveillance system?
BNC
RGB
HDMI
VGA
How is a video wall formed?
Using gas-display technology
Using CRT technology
Using LCD monitors
Using LED computer screens, traditional television sets and video projectors
Where can portable projectors be used?
Only in a dark room
Only on a ceiling
Only on a white or light coloured wall
Anywhere there is a bright surface
What type of cable is commonly used to connect analogue cameras to recorders in video surveillance systems?
RGB cable
HDMI cable
Coaxial cable
Ethernet cable
What is the purpose of the shield on a coaxial cable?
To improve the image quality
To reduce the unwanted noise
To increase the signal strength
To protect the center conductor from EMI
How is the shielding of a coaxial cable grounded in order to reduce EMI effectively?
By connecting the shield to a ground
By connecting the shield to the center core
By connecting the shield to the power source
By connecting the shield to the monitor end
What type of network cable is commonly used in IP CCTV systems?
Coaxial cable
UTP cable
HDMI cable
RGB cable
What is the purpose of the twisted wires in UTP cables?
To increase the signal strength
To improve the image quality
To reduce the unwanted noise
To minimize external electromagnetic interference
What type of cable is considered the most secured form of transmission for long distance video?
UTP cable
Coaxial cable
Copper wire
Fiber optic cable
What is the purpose of a conduit in a video surveillance system?
To reduce the cost of materials
To minimize the risk of damage to cables
To increase the range of the wireless network
To improve the quality of the video transmission
