Mechanisms

The gear train in which diagram provides more torque?

• A
• B

The gear train in which diagram provides more speed?

• A
• B

Which gear train would you use to ride up a hill?

• A
• B

What happens to speed
when you increase torque?

• Speed Increases
• Speed decreases
• Speed stays the same

What happens to torque
when you increase speed?

• torque increases
• torque decreases
• torque stays the sme

To increase torque, the driven gear should be...

• larger than the drive gear
• smaller than the drive gear
• the same size as the drive gear

To increase speed the driven gear should be...

• Larger than the drive gear
• Smaller than the drive gear
• The same size as the drive gear

If the number of teeth on the input gear is 36 and the number of teeth on the output gear is 4, the gear ratio woud be

• 36:4
• 9:1
• 1:9

The input gear has 6 teeth.
The output gear has 48 teeth.  The gear ratio is...

• 1:8
• 8:1
• 6:48

The input gear has 16 teeth.  The output gear has 20 teeth.  The gear ratio is...

• 16:20
• 5:4
• 4:5