Bearings, Seals and Replacement parts

What is the primary function of bearings in mechanical systems?

• To increase friction between parts

• To enable smooth and controlled movement between parts

• To generate electrical energy

• To provide structural support

How do bearings reduce friction in mechanical systems?

• By providing rough surfaces

• By using magnetic fields

• By providing smooth balls or rollers

• By increasing the load

What role do the balls or rollers in a bearing play?

• They increase the load

• They prevent movement

• They bear the load and allow smooth spinning

• They generate heat

Which type of bearing is typically used for high-speed applications?

• Ball Bearing

• Journal Bearing

• Needle Roller Bearing

• Taper Roller Bearing

Which bearing type is typically used in applications involving magnetic fields?

• Magnet Bearing

• Needle Bearing

• Plain Bearing

• Fluid Bearing

Which type of bearing is used in applications requiring high speeds and low friction, like wheels, motors, and pumps?

• Ball Bearings

• Roller Bearings

• Needle Bearings

• Plain Bearings

What is the primary function of seals in mechanical systems?

• To enhance the speed of mechanical systems

• To prevent leakage of fluids or gases

• To increase the temperature of systems

• To reduce the size of mechanical components

Which of the following is a common replacement part for vehicles?

• Windshield

• Spark Plugs

• Seat Covers

• Steering Wheel

What is the purpose of replacement parts in vehicle maintenance?

• To enhance the vehicle's appearance

• To ensure proper function, safety, and longevity

• To increase fuel efficiency

• To reduce noise levels

Which of the following is NOT listed as a replacement part in the document?

• Timing Belts

• Brake Pads

• Airbags

• Oil Filters