GHCL Limited Mechanical Graduate Engineer Trainee Interview Questions and Answers

Q1. What Is GMAW ?
Ans. 
GMAW stands for Gas Metal Arc Welding, a welding process that uses a continuous solid wire electrode and shielding gas to create a weld.
• Uses a continuous solid wire electrode

• Requires a shielding gas to protect the weld from atmospheric contamination

• Commonly used in industries like automotive, construction, and manufacturing
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Q2. What are different between MIG & MAG ?
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MIG stands for Metal Inert Gas welding, while MAG stands for Metal Active Gas welding. The main difference lies in the type of shielding gas used.
• MIG welding uses inert gases like argon or helium to shield the weld pool from atmospheric contamination, while MAG welding uses active gases like carbon dioxide or a mixture of gases.

• MIG welding is typically used for non-ferrous metals like aluminum, while MAG welding is mor...read more
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Q3. What is WPS Procee ?
Ans. 
WPS Procee is a welding procedure specification that outlines the details of a specific welding process.
• WPS Procee includes information such as welding materials, welding parameters, preheat and post-weld heat treatment requirements.

• It is essential for ensuring consistency and quality in welding operations.

• WPS Procee is often required in industries such as construction, manufacturing, and oil & gas.

• Example: A WPS Proce...read more
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Q4. What is PQR Process ?
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PQR Process is a procedure used in welding to qualify the welding procedure specification.
• PQR stands for Procedure Qualification Record.

• It involves testing and documenting the variables used during the welding process.

• The purpose is to ensure that the welding procedure will produce the desired quality of welds.

• PQR Process is essential for ensuring the integrity and strength of welded joints.

• Examples of variables tested...read more
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Q1. Tell about yourself.
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Experienced Senior Engineer with a strong background in software development and project management.
• Over 10 years of experience in software engineering

• Proficient in multiple programming languages such as Java, Python, and C++

• Led successful projects from conception to completion, resulting in increased efficiency and cost savings

• Strong problem-solving skills and ability to work well in a team environment
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Q2. Why you want to switch your job .
Ans. 
Seeking new challenges and opportunities for growth.
• Looking for a new environment to learn and develop new skills.

• Interested in working on different projects to broaden my experience.

• Seeking a company with better career advancement opportunities.

• Want to explore new technologies and methodologies in the industry.
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Q1. As Resume mentioned keystoles, area of experience
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Q1. In depth knowledge on metals, rotary items
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Instrumentation topics and trouble shooting

Q1. What about your role
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Q2. How you eligible for this position
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Q3. Tell about your self
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Q1. They asking questions from experience industry like as chemical and refinarye
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Q1. As per CV they asking questions
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Q1. About your current roles and responsibilities
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Q2. About Project Management, Basic things like Critical Path Method etc
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Q3. About Contractor Management Skills
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Q1. About Coromandel International Limited and its products
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Q2. About Automobile basics like Bevel/Differential gear as I had an experience in Project with relevant to Automobile
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Q3. About Team Management Skills
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Q4. About TQM & TPM related questions
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Q1. Fans vs blowers
Ans. 
Fans are used to create airflow in a specific direction, while blowers are used to generate high-pressure airflow in a concentrated area.
• Fans are typically used for cooling purposes in electronics or ventilation in buildings.

• Blowers are commonly used in HVAC systems, industrial processes, and automotive applications.

• Fans have lower pressure capabilities compared to blowers.

• Blowers are more efficient in moving air over ...read more
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Q2. Design of heat exchanger
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Heat exchangers are devices used to transfer heat between two or more fluids.
• Heat exchangers can be classified based on their construction (e.g. shell and tube, plate, finned tube)

• Design considerations include fluid flow rates, temperature ranges, material selection, and pressure drop

• Efficiency of heat exchangers can be improved by increasing surface area for heat transfer

• Examples of heat exchangers include car radiato...read more
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Technical and General aptitude focused on logical reasoning

Q1. Reaction Engineering, Fluid mechanics, Heat transfer, Mass transfer, Process safety, Plant related case studies, previous organisation achievements
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Q1. Salary negotiation
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