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Sci Tech Centre Interview Questions and Answers

Updated 1 Mar 2024

Q1. What is the working principle of induction machine? - How does the flux is induced in induction machine? - what is infinite bus? - If load is suddenly changed then what will change in infinite bus? - Why high v...

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Ans.

Answers to questions related to induction machine and power transmission

  • Induction machine works on the principle of electromagnetic induction

  • Flux is induced in the rotor of the induction machine due to the rotating magnetic field produced by the stator

  • Infinite bus is a hypothetical bus with infinite power capacity and voltage

  • If load is suddenly changed in infinite bus, the voltage and frequency will change

  • High voltage is considered in transmission to reduce power losses due t...read more

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Q2. The DT market in India and The Technical aspects of DT procured by Indian Utilties

Ans.

The DT market in India and the technical aspects of DT procured by Indian Utilities.

  • The DT market in India refers to the market for Distribution Transformers in the country.

  • Indian Utilities procure Distribution Transformers (DT) for their power distribution networks.

  • Technical aspects of DT include specifications such as power rating, voltage ratio, insulation class, cooling type, etc.

  • DTs are designed to step down the voltage from the transmission level to the distribution lev...read more

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Q3. The possibility of adoption of Chinese Technology in Indian market by the bulk customers

Ans.

The adoption of Chinese technology in the Indian market by bulk customers is a possibility.

  • Chinese technology offers competitive pricing, which can attract bulk customers in the Indian market.

  • Chinese technology companies have a wide range of products and solutions that cater to the needs of bulk customers.

  • Chinese technology has been successful in other markets, indicating its potential for adoption in the Indian market.

  • Bulk customers may prioritize cost-effectiveness over oth...read more

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Q4. Working principle of Transformer

Ans.

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

  • Transformers work on the principle of electromagnetic induction.

  • They consist of two or more coils of wire, known as windings, which are wound around a common magnetic core.

  • The primary winding is connected to the input voltage source, while the secondary winding is connected to the load.

  • When an alternating current (AC) flows through the primary ...read more

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Q5. What material required during Bracket fabrication

Ans.

Materials required for bracket fabrication include metal sheets, welding rods, grinding wheels, and polishing compounds.

  • Metal sheets of appropriate thickness and size

  • Welding rods for joining the brackets

  • Grinding wheels for shaping and smoothing the brackets

  • Polishing compounds for finishing the brackets

  • Protective gear such as gloves and goggles

  • Tools such as a welding machine, grinder, and polisher

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Q6. What are the tests to be conducted in Bay wise protection scheme

Ans.

Tests for Bay wise protection scheme include primary injection test, secondary injection test, and relay coordination test.

  • Primary injection test to verify the correct operation of primary protection relays

  • Secondary injection test to verify the correct operation of secondary protection relays

  • Relay coordination test to ensure proper coordination between different relays in the scheme

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Q7. Procedure of each department

Ans.

Each department has its own specific procedures to ensure efficient production.

  • The production department is responsible for creating and assembling the final product.

  • The quality control department ensures that the product meets the required standards.

  • The maintenance department is responsible for keeping the machinery and equipment in good working condition.

  • The logistics department handles the transportation and delivery of the finished product.

  • The research and development dep...read more

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Q8. What are the material ri numbers

Ans.

Material RI numbers are refractive index values used to identify materials.

  • RI numbers are used in optics to determine the bending of light as it passes through a material.

  • Different materials have different RI numbers, which can be used to identify them.

  • RI numbers are often measured using a refractometer.

  • RI numbers are important in fields such as gemology, where they can be used to identify gemstones.

  • RI numbers can also be used in the pharmaceutical industry to identify and an...read more

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