Gear Systems

Question 1

Different effects of gear types

Answer 1

• how the teeth are arranged
• angle at which the meshing occurs
• direction of the axis

Question 2

Gears can

Answer 2

• increase or decrease speed
• change the direction of motion
• multiply or increase turning forces

Question 3

In line system

Answer 3

When gears react in the same place and direction

Question 4

Gearing down

Answer 4

When the output gear rotates more slowly than the input gear

Question 5

Torque

Answer 5

Turning force

Question 6

Gear ratio

Answer 6

The ration of the speed of the driven gear relative to the speed of the driver gear

Question 7

Gear trains

Answer 7

Sets of gears that transmit when two or more gears are meshed together

Question 8

Velocity ratio

Answer 8

Number of teeth on driven gear divided by number of teeth on driver gear

Question 9

Gears linked together are called

Answer 9

Compound gears

Question 10

Gear

Answer 10

Wheel with evenly spaced teeth on their outer rim

Question 11

Gears used to change rotational movement through 90 degrees

Answer 11

Bevel gears

Question 12

Rack and pinion gears

Answer 12

Gears that change rotational movement into linear movement

Question 13

A gear that produces a 90 degree change in rotational movement and slows down the speed of movement.

Answer 13

Worm gear