How often must dry-chemical systems undergo maintenance and inspections?

• A. Annually with quarterly inspection
• B. Biannually with monthly inspection
• C. Monthly with yearly inspection
• D. Quarterly without annual inspection

Answer: (A)

Dry-chemical systems, such as those used in fire suppression at airports, have specific maintenance and inspection requirements to ensure they are functioning effectively when needed. It is essential to follow these guidelines to maintain both safety and compliance with regulatory standards.

The maintenance requirements typically stipulate that dry-chemical systems should be inspected at least once a year, which aligns with the need for thorough checks of the system's integrity and readiness. Additionally, quarterly inspections are important to monitor and ensure that the system remains in proper working order and to identify any potential issues before they become serious problems. These regular inspections can include checking for adequate amounts of the suppression agent, examining the system's physical condition, and testing any alarms or controls.

This combination of annual maintenance with quarterly inspections helps ensure that the system is not only compliant with safety regulations but also effectively ready for emergency situations. This is why the answer that includes both annual maintenance and quarterly inspections is deemed correct.