Manager Mech Interview Questions and Answers for Freshers

There are three types of lubrication for rotating mechanisms: hydrodynamic, boundary, and mixed.

• Hydrodynamic lubrication uses a fluid film to separate the surfaces and reduce friction.

• Boundary lubrication uses a layer of lubricant on the surface to reduce friction.

• Mixed lubrication is a combination of hydrodynamic and boundary lubrication.

• Examples of lubricants include oil, grease, and graphite.

• The choice of lubrication depends on factors such as speed, load, temperature, and...read more

There are several types of bearings used in mechanical applications.

• There are four main types of bearings: ball bearings, roller bearings, plain bearings, and jewel bearings.

• Ball bearings are the most common type and are used in applications with low to moderate loads.

• Roller bearings are used in applications with heavier loads and higher speeds.

• Plain bearings are used in applications with high loads and low speeds.

• Jewel bearings are used in precision instruments and watches.

• O...read more