Audible and visual alarm indicators shall meet which requirement?

• A. Individual indicators shall not be less than DN20 size
• B. Testing to determine indicator function should be scheduled periodically and records maintained between testing.
• C. CGA C-7
• D. The staff should be trained to operate the test button periodically and report malfunctions.

Answer: (B)

Regular, documented testing of alarm indicators is essential to ensure they work when a fault occurs. Scheduling periodic tests verifies that each audible and visual indicator will function as intended, and keeping records between tests provides a traceable history that shows ongoing performance and compliance. While indicator size or training are important, they don’t guarantee ongoing functionality; the key requirement is a formal testing schedule with documentation.