Mechanical Interview Question on Mechanics and Machines

What is the Kutzbach equation?

The Kutzbach equation is the determinant of the degree of freedom in linkages.

What are Linkages?

Linkages of mechanical linkages are assembled bodies which takes force and movement as inputs and outputs a different force/movement.

What are degrees of freedom in linkages?

Degrees of Freedom is a term used in mechanics for understanding the configuration of a mechanical system or mechanism by determining its independent parameters.

What are gears? What are the different types of gears?

Mechanical engineering interview questions and answersGears are devices used to transmit rotation, torque, and power between shafts by engaging specially shaped teeth on rotating disks. Different types of gears are

  • Spur Gears
  • Helical Gears
  • Bevel Gears

How to select a bearing? What are things needed to be considered when designing a bearing?

Load, Size, Speed, Location, Starting torque, noise, lubrication supply and cost.

What is the purpose of gear, chain and belt?

To transmit power from one shaft to another.

What are seals?

Seals are the devices used to reduce or eliminate the flow of fluid between two locations.

What are springs?

Springs are flexible elements used to store energy or to exert force or torque.

What are the different types of springs? What are their applications?

Compression Springs. Application: Switches, Automotive suspensions etc.

Tension Springs Applications: Door Hinges

Torsion Springs. Application: Typical example is mouse trap and hair clips

Constant Force Spring (Clock Spring). Application: Clock mechanisms

Belleville Spring / Belleville Washer / Spring Washer. Application: Nut Bolt tightening operations.

What are bearings? What are different types of bearing?

Bearings are the devices made of an assembly of two surfaces that have relative motion.

Different types of bearings are Ball Bearings, Roller Bearings, Ball Thrust Bearing, Roller thrust bearings and Tapper Roller Bearings.



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