SIA CCTV Camera Operations 1 — Questions and Answers
Question 1: What does PTZ stand for in relation to CCTV cameras?
- Preset Tracking Zoom
- Pan Tilt Zoom (Correct answer)
- Programmable Tracking Zone
- Point Track Zoom
Correct answer: Pan Tilt Zoom
PTZ stands for Pan Tilt Zoom. These cameras can rotate horizontally (pan), vertically (tilt), and adjust the lens to magnify images (zoom).
Question 2: What is the primary purpose of a camera's 'preset' function?
- To set a timer for recording
- To programme the camera to move to specific pre-defined positions (Correct answer)
- To adjust the image brightness
- To reset the camera to factory settings
Correct answer: To programme the camera to move to specific pre-defined positions
Camera presets allow operators to programme specific positions (including pan, tilt and zoom settings) that the camera can quickly move to at the touch of a button.
Question 3: What is 'dwell time' in CCTV operations?
- The time taken for a camera to power on
- The length of time a camera remains on a particular view during an automatic tour (Correct answer)
- The time footage is stored before deletion
- The time between motion detection alerts
Correct answer: The length of time a camera remains on a particular view during an automatic tour
Dwell time is the length of time a camera stays on a particular preset position before moving to the next position during an automatic patrol or tour sequence.
Question 4: What is the purpose of a camera housing?
- To hide the camera from public view
- To protect the camera from weather, vandalism and environmental damage (Correct answer)
- To improve the camera's recording quality
- To amplify the camera's signal
Correct answer: To protect the camera from weather, vandalism and environmental damage
Camera housings protect the camera unit from environmental factors such as rain, dust, extreme temperatures, and potential vandalism or tampering.
Question 5: What type of CCTV camera is best suited for monitoring a wide, open area such as a car park?
- A fixed camera with a narrow lens
- A dome camera with a fisheye lens
- A PTZ camera with good optical zoom (Correct answer)
- A covert pinhole camera
Correct answer: A PTZ camera with good optical zoom
A PTZ camera is ideal for large, open areas like car parks because it can pan across the wide space, tilt to different angles, and zoom in on specific areas of interest.
Question 6: What does 'IR' stand for when referring to CCTV cameras used in low-light conditions?
- Image Resolution
- Infrared (Correct answer)
- Internal Recording
- Incident Response
Correct answer: Infrared
IR stands for Infrared. IR cameras use infrared illumination to capture images in low-light or complete darkness, producing black and white footage.
SIA CCTV Camera Operations 1
What does PTZ stand for in relation to CCTV cameras?