SIA CCTV Camera Operations 2

Question 1

What is a 'tour' or 'patrol' function on a PTZ camera?

Accepted Answer

An automated sequence where the camera moves through preset positions

Answer

A tour or patrol is an automated sequence programmed into the PTZ camera where it cycles through a series of preset positions with defined dwell times at each point.

Question 2

What is the main advantage of digital zoom over optical zoom?

Accepted Answer

Digital zoom has no real advantage — optical zoom maintains image quality

Answer

Digital zoom simply enlarges the pixels of the existing image, resulting in reduced quality. Optical zoom uses the camera lens to magnify the image while maintaining full resolution.

Question 3

What should a CCTV operator do when they first take over a shift?

Accepted Answer

Check all cameras are operational, read the incident log, and note any ongoing issues

Answer

At the start of a shift, operators should check that all cameras and equipment are functioning, review the incident log from the previous shift, and note any ongoing situations or issues.

Question 4

What is the purpose of a video wall in a CCTV control room?

Accepted Answer

To display multiple camera feeds simultaneously for monitoring

Answer

A video wall consists of multiple screens arranged together to display many camera feeds simultaneously, allowing operators to monitor a large number of cameras at once.

Question 5

What is 'multiplexing' in a CCTV system?

Accepted Answer

Combining signals from multiple cameras onto one screen or recording device

Answer

Multiplexing is the process of combining video signals from multiple cameras so they can be displayed on a single monitor (split screen) or recorded on a single device.

SIA CCTV Operator Practice Test

SIA CCTV Operator Practice Test

SIA CCTV Camera Operations 2