Indraprastha Gas Graduate Engineer Interview Questions and Answers

Q1. What is the difference between LPG (Liquefied Petroleum Gas) and CNG (Compressed Natural Gas)?
Ans. 
LPG is a mixture of propane and butane, while CNG is mainly composed of methane.
• LPG is stored in liquid form under pressure, while CNG is stored in gaseous form under high pressure.

• LPG is heavier than air and settles at the bottom of a container, while CNG is lighter than air and disperses quickly.

• LPG is commonly used in households for cooking and heating, while CNG is used as a fuel for vehicles.

• LPG has a higher energ
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Q2. Type of welding all types
Ans. 
There are various types of welding techniques used in different industries.
• Some common types of welding include MIG welding, TIG welding, stick welding, and flux-cored arc welding.

• Each type of welding has its own advantages and limitations, depending on the material being welded and the desired outcome.

• For example, MIG welding is often used for automotive repairs, while TIG welding is preferred for precision work like
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Q1. What is natural gas?
Ans. 
Natural gas is a fossil fuel composed primarily of methane and other hydrocarbons, used for heating, cooking, and electricity generation.
• Natural gas is a fossil fuel found deep beneath the Earth's surface.

• It is primarily composed of methane, but can also contain ethane, propane, and other hydrocarbons.

• It is a cleaner burning fuel compared to coal and oil, producing less carbon dioxide and other pollutants.

• Natural gas i...read more
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Q2. What motivates you to seek a position at Adani Gas?
Ans. 
I am motivated to seek a position at Adani Gas because of their reputation for innovation, sustainability, and growth opportunities.
• Adani Gas is known for its innovative approach to the energy sector, which aligns with my passion for finding creative solutions to complex problems.

• The company's commitment to sustainability resonates with my values, and I am excited about the opportunity to contribute to their environmen...read more
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Q3. What is the difference between a pipe and a tube?
Ans. 
A pipe is typically used to transport fluids or gases, while a tube is used for structural applications or conveying materials.
• Pipes are measured by their inner diameter, while tubes are measured by their outer diameter.

• Pipes are typically round in shape, while tubes can be round, square, or rectangular.

• Pipes are often used in plumbing, HVAC systems, and transportation of fluids, while tubes are used in construction, a
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Q4. What are your reasons for leaving your current position?
Ans. 
Seeking new challenges and opportunities for growth.
• Desire for career advancement

• Looking for new challenges

• Seeking opportunities for professional growth

• Want to broaden skill set

• Company restructuring or downsizing
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Q5. What is CNG (Compressed Natural Gas)?
Ans. 
CNG is a fuel made by compressing natural gas to less than 1% of its volume at standard atmospheric pressure.
• CNG is a cleaner alternative to traditional fuels like gasoline and diesel.

• It is primarily composed of methane gas.

• CNG is stored and distributed in high-pressure tanks.

• It is commonly used as a fuel for vehicles, especially in public transportation.

• CNG produces fewer emissions compared to gasoline or diesel when
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Q1. Can you introduce yourself?
Ans. 
I am a recent graduate with a degree in Business Administration and a passion for marketing and project management.
• Recent graduate with a degree in Business Administration

• Passionate about marketing and project management

• Strong communication and organizational skills

• Experience in internships and extracurricular activities
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Q2. Given your one year of experience, what motivates you to join as a Graduate Engineering Trainee?
Ans. 
I am motivated to join as a Graduate Engineering Trainee to further develop my skills, gain hands-on experience, and contribute to innovative projects.
• Opportunity to learn from experienced professionals in the field

• Desire to apply theoretical knowledge to practical projects

• Excitement to work on cutting-edge technologies and contribute to innovative solutions
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Q1. What to do ONGC in India
Ans. 
ONGC (Oil and Natural Gas Corporation) is a leading oil and gas exploration and production company in India.
• ONGC is involved in exploration, production, refining, and marketing of oil and gas.

• It operates oil and gas fields both onshore and offshore in India and abroad.

• ONGC also has subsidiaries in various sectors like petrochemicals, power, and renewable energy.

• The company plays a crucial role in meeting India's energy...read more
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Q2. What is Hydrocarbon
Ans. 
Hydrocarbons are organic compounds made up of hydrogen and carbon atoms. They are the main components of fossil fuels.
• Hydrocarbons are molecules composed of only hydrogen and carbon atoms.

• They are the main components of fossil fuels such as gasoline, natural gas, and coal.

• Hydrocarbons can be classified into different types based on their structure, such as alkanes, alkenes, and alkynes.
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Q1. Question 1) Tell me about yourself 2) Why do you have to choose engineering and especially why mechanical 3)What are the special abilities you need to be a good mechanical engineer 4)How you will tackle t...read more
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1 hr generally all topics

15 mins of GD consists of 8-10 members

Q1. Area of interest asked then questions were bombarded
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Q2. Questions about their company
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The test includes:

1.Aptitude Test
2.Electrical Engineering Fundamentals
3.English Language Test
4.Mahanagar Gas Ltd. - Personality Profile Engineer-N
5.Reasoning and Analytical Skills


Selection for the interview round is based on the average of your total CGPA, test scores, and performance in the group discussion.

It was a basic aptitude test

Q1. Basic Interview based out on CV and Preferences of the candidates
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Aptitude Test has questions on programming language, operating system, Database management and two coding problems one is on programming languages and other is on SQL.

Q1. What is the difference between for each loop and for loop?
Ans. 
For each loop is used to iterate over elements in a collection, while for loop is used for iterating a specific number of times.
• For each loop is used with collections like arrays, lists, etc.

• For loop is used when the number of iterations is known.

• For each loop automatically iterates over each element in the collection.

• For loop requires initialization, condition, and increment/decrement statements.

• Example: for each loop...read more
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Q1. What is the difficult problem you faced in your college life?
Ans. 
Balancing academics and extracurricular activities
• Struggling to manage time effectively between classes, assignments, and club activities

• Feeling overwhelmed with the workload and pressure to excel in both academics and extracurriculars

• Seeking support from professors and mentors to find a balance and prioritize tasks

• Learning to prioritize tasks and delegate responsibilities to avoid burnout

• Developing time management ski
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Q1. Why did you choose Petronet LNG?
Ans. 
I chose Petronet LNG because of its strong reputation in the energy industry and its commitment to sustainable practices.
• Petronet LNG is a leading player in the liquefied natural gas industry in India

• The company has a strong track record of delivering reliable and cost-effective energy solutions to its customers

• Petronet LNG is committed to sustainable practices and has implemented several initiatives to reduce its carb...read more
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Q2. Where do you see 5 years from now with us?
Ans. 
In 5 years, I see myself as a highly skilled and experienced engineer, contributing significantly to the growth and success of the company.
• Continuously learning and developing new skills

• Taking on more responsibilities and leadership roles

• Contributing to innovative projects and driving technological advancements

• Building strong relationships with colleagues and clients

• Achieving professional growth and recognition within
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