Mechanism - Pulleys

What is the name of the pulley system shown?

• Fixed pulley

• Movable pulley

• Compound pulley

• Open drive pulley

• Crossed drive pulley

What is the name of the pulley system shown?

• Fixed pulley

• Movable pulley

• Compound pulley

• Open drive pulley

• Crossed drive pulley

What is the name of the pulley system shown?

• Fixed pulley

• Movable pulley

• Compound pulley

• Open drive pulley

• Crossed drive pulley

What is the name of the pulley system shown?

• Fixed pulley

• Movable pulley

• Compound pulley

• Open drive pulley

• Crossed drive pulley

What is the name of the pulley system shown?

• Fixed pulley

• Movable pulley

• Compound pulley

• Open drive pulley

• Crossed drive pulley

Which pulley rotates faster?

• Driven Pulley

• Driving Pulley

Which pulley rotates slower?

• Driven Pulley

• Driving Pulley

Which ones are the advantages of belt-and-pulley drive over the chain-and-sprocket drive?

• Longer lifespan

• No lubrication needed

• High durability

• Lower noise level

• Less costly

Which pulley rotates faster?

• Driver pulley

• Driven pulley

If driver pulley rotates at 90 revolutions/minute (90 rpm), what is the speed of driven pulley rotation?

• 90 rpm

• 600 rpm

• 270 rpm

• 200 rpm

Answer explanation

Driven pulley is 3x smaller. Hence, its speed is 3x faster.

90 rpm x 3 = 270 rpm