CST Preventive Maintenance Schedules 2

Question 1

How often should PTZ camera lubrication and mechanical movement checks typically be performed?

Accepted Answer

Quarterly

Answer

PTZ camera mechanical components such as gears and motors should be inspected and lubricated on a quarterly basis to prevent premature wear.

Question 2

Which document should a technician reference to determine the manufacturer-recommended cleaning interval for a camera dome housing?

Accepted Answer

Installation manual or maintenance guide

Answer

The manufacturer's installation manual or maintenance guide specifies recommended cleaning intervals specific to the equipment model.

Question 3

A maintenance log shows a DVR's hard drive has been in continuous operation for 3 years. What preventive action is most appropriate?

Accepted Answer

Plan for hard drive replacement

Answer

Hard drives have a finite operational lifespan, and proactive replacement after 3 years of continuous use prevents unexpected recording loss.

Question 4

What is the primary purpose of checking camera IR illuminator output during a preventive maintenance visit?

Accepted Answer

To verify adequate low-light imaging performance

Answer

IR illuminators degrade over time, so verifying output ensures the camera maintains effective night-vision coverage.

Question 5

During a scheduled PM, a technician finds condensation inside an outdoor camera enclosure. What is the correct response?

Accepted Answer

Dry the enclosure, inspect for seal failure, and replace gaskets if needed

Answer

Condensation indicates a compromised seal; drying the unit and replacing failed gaskets prevents moisture damage to internal electronics.

(CST) Certified Surveillance Technician Practice Test