If a safety interlock test is skipped before a performance, what risk arises?

• A. The interlocks, sensors, and shut-down circuits may fail to respond to faults.
• B. The show will run without any risk.
• C. There is no impact on safety.
• D. Interlocks will automatically fix themselves.

Answer: (A)

Testing the safety interlock chain before a performance checks that every layer—interlocks, sensors, and the shut-down circuits—will detect faults and stop the system when something goes wrong. If you skip that test, you don’t know that those components will actually respond to a fault in real conditions. A real fault could exist in wiring, sensors, controllers, or valves, and without verification they may fail to trip, allowing unsafe operation to continue. That’s why the risk described is that the interlocks, sensors, and shut-down circuits may fail to respond to faults. The other options assume no risk or automatic fixes, which isn’t how safety systems work.