Gears and Mechanisms Review

Which of the following gear trains do not have parallel output shafts?

• Simple
• Idler
• Chain
• Worm and Wheel

When a drive gear is larger than a driven gear the output is.....

• More Speed
• More Torque
• Less Speed
• Change in angle

When a drive gear is smaller than the driven gear the result is....

• More Speed
• More Torque
• Less Torque
• More Angle

Two meshed gears will turn in what direction from each other? 

• Same
• Opposite

 A gear ratio of 1:5 indicates...

• A train with increased speed
• A train with increased torque
• A train with an increased angle
• A train with an changed direction

 A gear ratio of 10:1 indicates

• A train with increased torque
• A train with increased speed
• A train with decreased angle
• A train with reversed angle

A simple gear train might be used in the following...

• Guitar
• Door
• Clock
• Childs Toy

An idler gear train might be used in the following....

• Door
• Clock
• Drill
• Computer

Bevel gears might be used to...

• Change Speed
• Build a computer
• Transmit power around a corner
• Increase torque dramatically

A worm and wheel gear might be used on a string instrument's tuner because....

• It has a high speed ratio for quick tuning
• It is not reversible for tuning stability. 
• It has a high torque ratio for fast tuning.
• It is compact and simple.