Core Energy Systems Limited Senior Mechanical Supervisor Interview Questions and Answers

Q1. How to choose mosfet
Ans. 
Choose a MOSFET based on voltage, current, power dissipation, switching speed, and package type.
• Consider voltage and current requirements

• Look at power dissipation and thermal considerations

• Evaluate switching speed needed for the application

• Choose the appropriate package type for mounting and heat dissipation

• Check for additional features like built-in protection circuits

• Example: For high power applications, choose a MOS
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Q1. Tell your experience about assembly tooling?
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Q2. How tooling elements you have designed and material selection?
Ans. 
I have designed various tooling elements and selected materials based on their properties and application requirements.
• Designed tooling elements for manufacturing processes such as injection molding, stamping, and machining

• Selected materials based on properties such as strength, durability, and heat resistance

• Considered application requirements such as cost, weight, and environmental factors

• Examples include designing i...read more
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Q3. Manufacturing process used?
Ans. 
We use a combination of CNC machining and injection molding for our manufacturing process.
• CNC machining is used for precision parts

• Injection molding is used for high volume production

• We also use 3D printing for prototyping

• Our manufacturing process is constantly evolving to improve efficiency and quality
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Q4. Surface finish requirement for tooling elements?
Ans. 
Surface finish requirement for tooling elements is critical for achieving desired product quality.
• Surface finish affects the performance of the tooling element.

• It impacts the appearance and functionality of the final product.

• Surface finish is measured in Ra (roughness average) or Rz (roughness depth).

• The required surface finish depends on the application and material being used.

• For example, a mirror finish may be requi...read more
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Q5. What is GD&T and tell about some symbols you used?
Ans. 
GD&T stands for Geometric Dimensioning and Tolerancing. It is a system of symbols and rules used to specify the geometry of mechanical parts.
• GD&T is used to ensure that parts fit together correctly and function properly.

• Some common symbols used in GD&T include concentricity, perpendicularity, and flatness.

• GD&T is often used in industries such as aerospace, automotive, and manufacturing.

• It allows for more precise commun...read more
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Q6. Which software u used?
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Q1. Why are you looking for a change?
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Q2. What is your expected salary?
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Q3. How soon u can join?
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Q1. Basics of htm javascript es6 angular
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Q2. Css scss
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Interceptor concepts

Q1. Salary negotiation
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Was asked to write a program for linked list

Q1. Was asked to explain program and some logical questions
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Q1. Normal Salary discussion
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Q1. Question from sheet metal domain Material science And previous work experience
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Q1. Basic engineering questions Work experience
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Q1. Salary negotiation and doj
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National Education Policy

Q1. Work Experience and Industry related Understanding
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Q1. What us nitration process?
Ans. 
Nitration process is a chemical reaction that involves the introduction of a nitro group into an organic compound.
• It is commonly used in the production of explosives, dyes, and pharmaceuticals.

• The process involves the use of nitric acid and sulfuric acid as reagents.

• The nitro group (-NO2) is introduced into the organic compound by replacing a hydrogen atom.

• The reaction is exothermic and can be dangerous if not properly...read more
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Q2. Difference between unit operation and unit process
Ans. 
Unit operation is a single step in a process while unit process is a series of operations to achieve a specific goal.
• Unit operation is a basic step in a chemical process like distillation, filtration, etc.

• Unit process is a series of unit operations that are combined to achieve a specific goal like refining crude oil into gasoline.

• Unit operations are often used in multiple processes while unit processes are specific to ...read more
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