Final answer:
The appropriate test for abrasive wheels is the Ring test, which checks for cracks by tapping the wheel and listening for a clear ringing sound. the correct option is (c).
Step-by-step explanation:
The correct test for abrasive wheels is the "Ring test." To perform the ring test, lightly tap the wheel with a non-metallic object, such as a wooden handle. A clear, metallic ring indicates a good wheel, while a dull sound may suggest a crack. This test helps identify hidden defects that could lead to wheel failure during use.
The ring test is a crucial safety measure to ensure the integrity of abrasive wheels. It helps prevent accidents and injuries by detecting potential flaws before the wheel is put into operation. Always perform this test before mounting a new wheel and regularly check existing wheels for signs of damage.