Gears Flashcards
1
Q
What are the various types of gears?
A
Spur gears, bevel gears, rack and pinion gears and worm gears.
2
Q
What do gears do?
A
Gears transmit motion from one position to another.
3
Q
What gears change the direction of rotary movement?
A
Bevel and worm gears.
4
Q
What do rack and pinion gears do?
A
They change rotary motion to linear motion and vice versa.
5
Q
What gears can produce large reductions in velocity?
A
Worm gears
6
Q
Where is a rack and pinion gear system used?
A
On an automatic gate.
7
Q
Describe the ratchet and pawl.
A
The ratchet and pawl allows motion in one direction while the pawl locks to prevent movement in the their direction.
8
Q
At what angle is the shaft of the pinion positioned to the rack.
A
An angle of 90(degrees)
9
Q
How could you make an automated gate move faster or slower?
A
- the velocity with which the pinion rotates
- the number of teeth on the pinion
- the number of teeth per centimeter on the rack
