Deck 16: Gears and Cams

Question 1

Which of the following gear does not have teeth?

A) Herringbone
B) Bevel
C) Hypoid
D) Worm
E) Friction wheel

Answer 1

Friction wheel

Question 2

If you have a spur gear with a friction wheel of diameter equal to .25 at 210 rpm, what is the velocity?

A) 52 ft/min
B) 78 ft/min
C) 116 ft/min
D) 165 ft/min
E) 189 ft/min

Answer 2

165 ft/min

Question 3

In a spur gear, the radial distance from pitch circle to top of tooth is called:

A) Circular pitch
B) Pitch circle
C) Addendum
D) Root diameter
E) Working depth

Answer 3

Addendum

Question 4

Which of the following gears is used to change force direction?

A) Herringbone
B) Bevel
C) Hypoid
D) Helical
E) Friction wheel

Question 5

An irregular shaped disk is called a:

A) Follower
B) Roller
C) Parabolic curve
D) Base circle
E) Cam

Question 6

The distance between top of a tooth and the bottom of the mating space is the:

A) Clearance
B) Dedendum
C) Pitch circle
D) Root diameter
E) Working depth

Question 7

Which of the following transmits power between shafts whose axes intersect, not necessarily at 90°?

A) Worm gear
B) Friction wheel
C) Bevel gear
D) Spur gear
E) Herringbone gear

Question 8

The word involute means _________.

Question 9

The reciprocating member of a cam is called the ________

Question 10

The screw having a thread of the same shape as a rack tooth is called the _____

Question 11

The design of a spur gear normally begins with the selection of the __________

Question 12

The gear used to transmit power between nonintersecting shafts at right angles is the ___________

Question 13

The gear used to transmit power between shafts whose axes intersect is the _________

Question 14

Gear teeth formed on a flat surface are called a __________

Question 15

When teeth are cut to a standard shape with special cutters, it is not necessary to show the individual teeth on the drawing.

Question 16

With regard to bevel gears, the angle between top of teeth and the gear axis is termed root angle.

Question 17

When using CAD gear design software, you are able to input the design requirements and the CAD software will generate the design drawing.

Question 18

Gears may be used to change direction and rotation speed; however, axis orientation requires other mechanisms.