Assistant Professor in Mechanical Engineering Department

Assistant Professor in Mechanical Engineering Department Interview Questions and Answers

Updated 14 Jan 2023

Q1. What alternative being used now a days to the gap given between rail ends which were used earlier to compensate for linear expansion?

Ans.

Continuous welded rail (CWR) is used to compensate for linear expansion in place of the gap given between rail ends.

Continuous welded rail (CWR) is a method where the rails are welded together to form a continuous track.
CWR eliminates the need for expansion gaps between rail ends.
The expansion and contraction of the rails due to temperature changes are accommodated by the flexibility of the CWR.
CWR provides a smoother and more stable track for trains.
Examples of CWR systems i...read more

Ans.

The number of degrees of freedom for a robotic arm depends on its design and complexity.

The number of degrees of freedom refers to the number of independent movements a robotic arm can make.
A simple robotic arm with a single joint has one degree of freedom, allowing it to move in one direction.
A more complex robotic arm with multiple joints can have multiple degrees of freedom, allowing it to move in multiple directions.
The number of degrees of freedom can be calculated using...read more

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India doesn't have high speed trains like Japan and China due to various reasons.

Lack of infrastructure: India's railway infrastructure is not designed to support high speed trains.
Cost considerations: Building and maintaining high speed train networks require significant investment.
Population density: India's high population density makes it challenging to acquire land for new railway lines.
Technological challenges: Developing and implementing high speed train technology req...read more

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Rails come under the category of structural steel.

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Ans.

Manufacturing systems are classified into four types: job shop, batch, mass production, and continuous.

Job shop manufacturing involves producing custom-made products in small quantities.
Batch manufacturing produces a group of similar products in a specific quantity.
Mass production focuses on producing large quantities of standardized products.
Continuous manufacturing involves the uninterrupted production of goods, typically in industries like chemicals or petroleum.
Examples: ...read more