What is a toothed wheel used in chain drives?
A. Belts
B. Couplings
C. Chain
D. Sprocket
A. Incorrect. Belts are flexible bands, placed around two or more pulleys or sheaves, which transmit rotational energy.
B. Incorrect. Couplings are mechanical devices used to connect and transfer rotational energy from the shaft of the driver to the shaft of the driven equipment.
C. Incorrect. A chain is a mechanical device used to transfer rotational energy between two or more sprockets.
D. Correct. A sprocket is a toothed wheel used in chain drives.
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