Preventive Maintenance Schedules Flashcards

When creating a preventive maintenance schedule for a large multi-site surveillance system, what is the most effective organizational approach?

Answer: Stagger site visits by priority and risk level to ensure continuous coverage across all locations

Staggering maintenance visits by site priority and risk ensures high-value or high-risk locations receive more frequent attention without leaving any site unmonitored.

A PM task calls for checking the video wall display used in a control room. What is the primary maintenance concern for these displays?

Answer: Pixel uniformity degradation, backlight brightness, and heat dissipation

Video wall displays in continuous-use control rooms degrade in pixel uniformity and backlight brightness over time, and heat management must be verified to prevent premature failure.

Which preventive maintenance practice helps extend the lifespan of outdoor surveillance cameras in coastal environments?

Answer: Applying anti-corrosion coating to metal hardware and regularly inspecting seals

Salt air in coastal environments accelerates corrosion of metal mounting hardware and enclosure components, making anti-corrosion treatments and seal inspections essential.

A technician completes a quarterly PM and discovers that the backup power generator has not been tested in over a year. What action is most appropriate?

Answer: Flag the generator for immediate load testing and add generator testing to the PM schedule

Untested generators may fail when needed; load testing should be conducted immediately and generator verification added to the recurring PM schedule.

What does 'mean time between failures' (MTBF) data help a surveillance technician determine when building a preventive maintenance schedule?

Answer: Expected component lifespan to schedule proactive replacement before failure

MTBF data provides statistical guidance on how long a component is likely to operate reliably, enabling proactive scheduling of replacements before failures occur.

During a PM visit, a technician tests the camera failover to a secondary NVR. The failover does not activate automatically. What is the most likely cause?

Answer: Failover configuration settings are incorrect or the secondary NVR is not properly registered

Automatic failover requires correct configuration on both the primary and secondary NVR, and a failure to switch over typically indicates a setup error or registration issue.

A surveillance system PM plan requires verification of access control integration with cameras. What is the most important item to test?

Answer: That a door access event triggers the correct camera to begin recording or pop up on the video wall

Access control integration relies on event-triggered camera actions; verifying that door events correctly activate associated cameras confirms the integration is functioning.