Deck 32: Spur Gears

Question 1

The smaller of two spur gears is a ____________________.

Answer 1

pinion

Question 2

A spur gear with a rack converts ____________________ motion to reciprocating or linear motion.

Answer 2

rotary

Question 3

The thickness of a tooth or space measured on the circumference of the pitch diameter is ___________________________________.

Answer 3

chordal thickness

Question 4

The diameter of an imaginary circle on which the gear tooth is designed is the ____.

A) diametral pitch
B) pitch diameter
C) root diameter
D) circular pitch

Question 5

Bevel gears connect shafts having intersecting axes.

Question 6

The diameter at the bottom of the tooth is the inside diameter.

Question 7

The distance from a point on one gear tooth to a corresponding point on the adjacent tooth measured on the circumference of the pitch diameter is the ____.

A) circular pitch
B) circular thickness
C) chordal thickness
D) diametral pitch

Question 8

The overall gear diameter is the outside diameter.

Question 9

The function of a gear is to transmit rotary or _________________________ motion from one machine part to another.

Question 10

The pressure angle on spur gears is 14.5° or 30°.

Question 11

The radial distance between the bottom of one tooth and the top of the mating tooth is the ____.

A) addendum
B) dedendum
C) clearance
D) whole depth

Question 12

The formula for diametral pitch is ____.

A) DP = PD/M
B) DP = N/PD
C) DP = PD/N
D) DP = M/PD

Question 13

Gears are often used to change the speed of a shaft.

Question 14

Spur gears connect ____ shafts.

A) perpendicular
B) non-intersecting
C) parallel
D) intersecting

Question 15

The overall height of the tooth is the ______________________________.