SEPL Interview Questions and Answers

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

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

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

Rails come under the category of structural steel.

• Rails are typically made of carbon steel or alloy steel.

• They are used in the construction of railway tracks.

• Rails need to have high strength, durability, and resistance to wear and tear.

• Examples of steel used for rails include ASCE 60, UIC60, and BS 113A.

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