Test & Troubleshooting

What is the smallest amount of light needed for the camera to produce a useable image?

• Lux

• Meters

• Candles

• Lumens

What is needed for a CCTV camera to produce images?

• Flash

• Lux units

• Natural light

• Infrared light

How is the image quality affected by the amount of light available in the scene?

• The less light the better the image

• The image will become noisy or dark

• The less light the better the image

• The more light the better the image

What type of cables can be tested with a cable tester?

• CAT5e/6

• Fiber Optic

• UTP and Coaxial

• All of the above

What is the most important parameter for fiber optic testing?

• Visible LEDs

• Battery Power

• Optical Power

• Ground Status

What is the primary purpose of a colour reference chart in CCTV systems?

• To measure resolution

• To identify license plates

• To adjust the field of view

• To assess the colours in an image

What type of light is blocked when the Neutral Density filter is switched on?

• Visible light

• Infrared light

• Polarized light

• Ultraviolet light

What can cause interference problems in a system?

• Eliminating grounding pins from the outlets

• Lack of ground at each point of the installation

• Different ground at each point of the installation

• All of the above

What is the "Ground Loop" problem in video surveillance systems?

• It is the effect of an electromagnetic field on the camera.

• It is a problem caused by the direct connection between the devices.

• It is the interference generated by the circulation of an electric current through the coaxial cable.

• It is a problem caused by the grounding of the devices.

In which scenario is the best way to avoid the "Ground Loop" interference problem?

• When all devices are connected together and grounded to different points.

• When all devices are connected together and grounded to the same point

• When all devices are not connected together and grounded to different points.

• When all devices are not connected together and grounded to the same point.