The mechanical advantage of gears can be determined by calculating the ratio between the number of teeth on the gears or the ratio between the ____.

A) pitch diameters
B) diametral pitches
C) outside diameters of the two gears
D) root diameters of the two gears

Mechanical Advantage

The factor by which a mechanism multiplies the force put into it, enabling the lifting or moving of heavier loads with less effort.

Pitch Diameters

The effective diameter of a screw thread, halfway between the crests and roots, used in measuring and specifying thread sizes.

Diametral Pitches

Diametral pitches refer to the number of teeth per inch of the diameter of a gear, which determines the size of the teeth and the pitch of the gear.