Bearings Quiz

What is the primary function of mechanical bearings in machinery?

• To increase friction between parts

• To support the shaft and reduce friction

• To transmit power between machines

• To absorb power from machines

In mechanical engineering, what is a shaft primarily used for?

• To increase the speed of machines

• To transmit power from one part to another

• To reduce the weight of machinery

• To cool down the machinery

What is the primary function of a shaft?

• To provide support to elements like wheels

• To transmit torque

• To rotate without support

• To act as a bearing

Which of the following is an example of an axle?

• Shaft of an electric motor

• Automobile axle

• Gear shaft

• Turbine rotor

What is the shape of the cross-section of a shaft generally?

• Rectangular

• Circular

• T section

• I section

What is the primary function of an axle?

• To transmit torque

• To provide support to elements like wheel, pulley, etc.

• To rotate under load

• To act as a gear

Which of the following machines use bearings?

• Automobiles

• Airplanes

• Refrigerators

• All of the above

What are pneumatic bearings also known as?

• Air bearings

• Hydraulic bearings

• Magnetic bearings

• Roller bearings

What is a key benefit of pneumatic bearings?

• High friction

• Low precision

• High speed

• Short service life

Which of the following is a drawback of pneumatic bearings?

• Low cost

• Insensitivity to contamination

• Requires a constant supply of compressed air

• No energy consumption