Final answer:
The "Ring Test" is a method for testing the soundness of a grinding wheel. The test involves tapping the wheel with a non-metallic object and listening to the sound produced. A clear and crisp ring indicates a sound wheel.
Step-by-step explanation:
The "Ring Test" as described in 29 CFR 1910.215(d)(1) and 215(d)(1)(i) refers to a method for testing the soundness of a grinding wheel. According to the regulations, the ring test should be performed by tapping the grinding wheel with a non-metallic object like a wooden dowel. The sound produced will indicate the condition of the wheel. A clear and crisp ring indicates a sound wheel, while a dull thud or a cracked sound suggests a wheel that may be unsafe to use.