Exam 14: Close Circuit Television Camera Systems and National Electrical Code Article 820

A camera needs to record a view that includes a window measuring 3 feet horizontally. The camera being used has a format of 1/3-inch (4.8 mm), and the FL of the lens is 12 mm. How far out from the door does the camera need to be to see a viewable picture on the monitor?

What is the only drawback in using coax cable as the transmission link in a CCTV system?

Express the answer from question # 26 in lux .

Viewing a recorded image from a digital video recorder, the picture will look jerky because frames have been left out.

According to the National Electrical Code, coaxial cable being used for distributed television, must be installed so ________.

The measure of a camera's ability to distinguish between objects in close proximity to each other is called __________.

With each successive increment of the f-stop dial, for example, from 16 to 22, what happens to the amount of available light ?

Which of the following is not a common connector for coax cable?

A CCD camera can provide a full-resolution picture requiring less light than a tube camera

A lens format does not have to match the format of the camera for a perfect image.

What is an advantage of using CAT5 cabling over coax as the transmission link in a CCTV system?

Which of the following is a common f-stop value?

If a camera has a 1/3-inch format , what should be the lens size to create a perfect picture?

When deciding on the best image resolution, a good rule of thumb is the higher the image resolution, _________.

Sensitivity refers to the minimum amount of light that the camera requires to produce a full video image .

How much light (in footcandles) is available in a gravel parking lot on an overcast day?

Which transmission standard consists of 525 horizontal lines and 60 vertical lines of display ?

A camera converts a visual image into a usable video signal that typically measures ________.

Coax cable is the most commonly used link in CCTV systems .

The viewing format ratio of 4:3 is also known as "widescreen".