Practice Test Geeks(CST) Certified Surveillance Technician Practice Test
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CCTV Camera Selection & Placement Flashcards

7 cards from real CST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 CCTV Camera Selection & Placement flashcards as text

  1. What is the primary purpose of a camera's IR cut filter (ICR)?

    Answer: To physically switch between day and night modes for accurate color rendering

    The ICR mechanically moves a filter in front of the sensor, blocking infrared in daylight for true color and removing it at night for better low-light sensitivity.

  2. For perimeter detection along a fence line, which camera configuration provides the most effective coverage?

    Answer: Multiple narrow field-of-view cameras spaced along the fence

    Spacing multiple narrow FOV cameras along the fence creates overlapping coverage zones with enough detail to detect intruders at every point.

  3. Which specification indicates a camera's ability to produce usable images in extremely low ambient light without supplemental illumination?

    Answer: Low lux rating

    A low lux rating indicates the minimum light level at which the camera can still produce a usable image, with lower values meaning better low-light performance.

  4. What placement consideration is critical when installing cameras to monitor ATM machines?

    Answer: Camera must be mounted above and behind the user to capture the face

    Mounting the camera above and behind the user captures the face during the transaction while avoiding obstruction of the keypad view by the user's body.

  5. A camera's horizontal field of view is 90°. If placed in a corridor 10 feet wide, approximately how far from the camera will the image cover the full corridor width?

    Answer: 5 feet

    With a 90° horizontal FOV, the half-angle is 45°, so the image width equals the distance from the camera; a 10-foot-wide corridor is fully covered at 5 feet.

  6. Which camera feature is most important when the surveillance system must capture evidentiary-quality footage of fast-moving subjects such as vehicles?

    Answer: High frame rate (30+ fps)

    A high frame rate minimizes motion blur, ensuring individual frames of fast-moving vehicles are sharp enough for evidentiary use.

  7. In a school environment, where should cameras NOT be placed due to privacy regulations?

    Answer: Restrooms and locker rooms

    Cameras in restrooms and locker rooms are prohibited by privacy laws and regulations, including FERPA considerations and state statutes.