Mechanical system-Cam and followers

What is a cam used for in mechanical systems?

• To connect two rods

• To impart motion to another body

• To support the structure

• To measure pressure

What is the second body in contact with a cam called?

• Lever

• Piston

• Follower

• Spring

Which type of cam is shown in the first diagram?

• Radial or plate cam

• Barrel or cylindrical cam

• Face cam

• Spiral cam

Which type of cam is shown in the second diagram?

• Radial or plate cam

• Barrel or cylindrical cam

• Face cam

• Spiral cam

What type of followers is suitable for low speed applications with light contact force?

• Roller type followers

• Knife edge or point followers

• Flat-faced followers

• None of the above

Which type of followers is more wear resistant and commonly used in automated machinery?

• Knife edge or point followers

• Roller type followers

• Flat-faced followers

• None of the above

What is the purpose of a lever type follower in internal combustion engines?

• To reduce friction

• To increase speed

• To provide a pivoting action

• To cool the engine

What causes a flat-faced or mushroom follower to rotate about its own axis?

• Gravity

• Magnetic force

• Even distribution of wear

• Electrical energy

What happens when a follower is stationary for part of the rotation cycle?

• It is called a dwell

• It increases speed

• It stops functioning

• It changes direction

What is the shape of the cam profile when the cam turns during the dwell period?

• Square

• Triangular

• Circular

• Hexagonal