Bharat Oman Refineries Trainee Interview Questions and Answers

Basic Aptitude Sections, Mostly from GATE Syllabus

Q1. Technical Interview related to Chemical, Basically from Chemical Reaction Eng, Mass Transfer Operatio [Distillation] , Heat Transfer [Conduction Part, Convection and Radiation] Thermodynamics and Fluid Mec...read more
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Topic on related to different aspects of Petroleum

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. Why do you want to join shell?
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Q2. Describe an instance where you had received a feedback?
Ans. 
Received feedback on presentation skills during a team meeting.
• Received feedback on presentation skills during a team meeting

• Implemented suggestions to improve future presentations

• Requested feedback from colleagues regularly to enhance skills
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The Case details are shared by them on which you have to analyze and present the solution in 1.5 hr call. There are multiple cross questions that happen

Q1. Competency based evaluation
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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: GK, GS, Math and Reasoning

Q1. What is Entropy and what is the unit of Entropy?
Ans. 
Entropy is a measure of disorder or randomness in a system. Its unit is joules per kelvin (J/K).
• Entropy quantifies the number of possible microstates in a system

• It is a measure of the system's energy dispersal or the degree of randomness

• Entropy increases with an increase in disorder or randomness

• The unit of entropy is joules per kelvin (J/K)

• Entropy can be calculated using statistical mechanics or thermodynamics

• Example:...read more
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Q2. Which engine is best 2 strokes or 4 strokes?
Ans. 
Both engines have their own advantages and disadvantages depending on the application.
• 2-stroke engines are lighter and have higher power-to-weight ratio, making them ideal for small applications like chainsaws and mopeds.

• 4-stroke engines are more fuel-efficient and have a longer lifespan, making them ideal for larger applications like cars and boats.

• Environmental concerns have led to a decline in the use of 2-stroke en...read more
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Q3. It totally depends on you what you want. If you want power then go for 2 Strokes engine and if you want efficiency then go for 4 Stroke.
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