PCBL Chemical Limited Mechanical Engineer Interview Questions and Answers

Q1. What Is GMAW ?
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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 ?
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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. Describe distillation and its type
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Distillation is a process of separating components in a liquid mixture based on their boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to collect the separated components.

• Types of distillation include simple distillation, fractional distillation, and steam distillation.

• Simple distillation is used for separating components with significantly different boiling points...read more
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Q2. What carcass black
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Carcass black is a term used in the production industry to describe a type of rubber compound used in tire manufacturing.
• Carcass black is a type of reinforcing filler used in tire production to improve strength and durability.

• It is typically made from carbon black, a form of carbon that is finely divided and used as a reinforcing filler in rubber products.

• Carcass black helps improve the overall performance of tires by ...read more
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Q1. What is your current ctc
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Q2. Expected ctc and notice period
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Q1. Tell me Something about you
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I am a dedicated and enthusiastic Junior Engineer with a strong passion for problem-solving and learning new technologies.
• I have a Bachelor's degree in Engineering with a focus on software development.

• I have experience working on various projects during my studies, including developing a web application for a local business.

• I am proficient in programming languages such as Java, C++, and Python.

• I have strong analytical ...read more
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Q1. Explene CNC property and uses
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CNC stands for Computer Numerical Control. It is a manufacturing process that uses computerized systems to control machine tools.
• CNC allows for precise and automated control of machine tools.

• It is commonly used in industries such as automotive, aerospace, and electronics.

• CNC machines can perform a wide range of operations, including cutting, drilling, milling, and turning.

• They are capable of producing complex and intri...read more
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Q2. Whats is back lesh of gear box
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Backlash of a gearbox refers to the amount of play or clearance between the mating teeth of gears.
• Backlash is important in gear systems as it affects the accuracy and smoothness of motion transmission.

• It is measured as the angular movement of the output gear before the input gear starts to rotate.

• Backlash can be adjusted by changing the position of gears or using anti-backlash mechanisms.

• Excessive backlash can result i...read more
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Q1. What is the machine capacity?
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The machine capacity refers to the maximum amount of work or output that a machine can handle within a given time frame.
• Machine capacity can be measured in terms of units produced per hour, pieces processed per minute, or any other relevant metric.

• Factors that can affect machine capacity include machine speed, efficiency, maintenance, and downtime.

• For example, a CNC machine may have a capacity of producing 100 units pe...read more
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Q2. Mhe requirement
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Q1. About Self and family background. Academic and previous job related question.
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Q1. About last company equipment details. Responsibilities of previous plants. About Transformers, Relay, VCB, ACB, Motors and other essential electrical equipment.
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Q1. What is engineering? and principle
Ans. 
Engineering is the application of scientific and mathematical principles to design and create structures, machines, systems, and processes.
• Engineering involves problem-solving and innovation

• It applies scientific and mathematical principles to design and create solutions

• Engineers work in various fields such as civil, mechanical, electrical, and chemical engineering

• Examples include designing bridges, developing new techn
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Q2. What is application of engineering?
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The application of engineering involves using scientific principles to design, build, and improve systems, structures, and processes.
• Solving complex problems by applying mathematical and scientific principles

• Designing and creating new products, structures, or systems

• Improving existing processes or systems to increase efficiency and effectiveness

• Ensuring safety and reliability in engineering projects

• Collaborating with o
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