Question

the function of this part is to: a. transmit mechanical power by acting as a rigid driveshaft. b. transmit mechanical power by attaching a chain. c. convert mechanical power to gripping force. d. transmit mechanical power by meshing teeth.

Explanation:

Gears transmit mechanical power through the meshing of their teeth. A rigid driveshaft is not the main function of a gear. Attaching a chain is more related to sprockets in a chain - drive system. Converting mechanical power to gripping force is not the function of a gear.

Answer:

D. Transmit mechanical power by meshing teeth