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Oil And Natural Gas Corporation Apprentice Interview Questions and Answers

Updated 26 Dec 2021

Oil And Natural Gas Corporation Apprentice Interview Experiences

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Apprentice Interview Questions & Answers

user image Anonymous

posted on 26 Dec 2021

I applied via Recruitment Consultant and was interviewed before Dec 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. ITI Tread MMV Topic Question ( Theory/Practical)
  • Q2. Theory & Practical Experience Question.

Interview Preparation Tips

Interview preparation tips for other job seekers - No interview only marksheet above higher.

Interview questions from similar companies

I applied via Recruitment Consultant and was interviewed before Apr 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Process related

Interview Preparation Tips

Interview preparation tips for other job seekers - It doesn't matter if you are not subject matter expert... Your behavior matters more than functional.

I applied via Company Website

Interview Questionnaire 

2 Questions

  • Q1. Applied online.
  • Q2. You have to qualify written OMR test. That's it you are in.

Interview Preparation Tips

Interview preparation tips for other job seekers - No interview
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(5 Questions)

  • Q1. What is poroosity
  • Ans. 

    Porosity is the measure of empty spaces in a material, often used in geology and engineering.

    • Porosity is the ratio of void spaces to total volume in a material.

    • It is expressed as a percentage.

    • Porosity is important in fields like geology for assessing rock formations and in engineering for determining the strength of materials.

    • Examples of porous materials include sponges, pumice stones, and aerogels.

  • Answered by AI
  • Q2. What is permeability
  • Ans. 

    Permeability is the property of a material that allows fluids or gases to pass through it.

    • Permeability is a measure of how easily a substance can pass through a material.

    • It is often used in geology to describe how easily fluids can flow through rocks or soil.

    • Permeability can be affected by factors such as pore size, connectivity, and fluid viscosity.

    • Materials like sandstone have high permeability, while materials like

  • Answered by AI
  • Q3. Why you want this job
  • Ans. 

    I am passionate about helping others and believe this job will allow me to make a positive impact in the community.

    • I have a strong desire to contribute to the well-being of others

    • I am excited about the opportunity to work in a team-oriented environment

    • I am eager to learn and grow in my career

  • Answered by AI
  • Q4. Oil shale vs shale oil differnece
  • Ans. 

    Oil shale is a rock containing kerogen that can be converted into shale oil through a process called retorting.

    • Oil shale is a sedimentary rock containing kerogen, a precursor to oil.

    • Shale oil is the liquid hydrocarbons extracted from oil shale through a process called retorting.

    • Oil shale deposits are found in various countries like the United States, Estonia, and China.

    • Shale oil production has increased in recent years

  • Answered by AI
  • Q5. Unconventional reservoir
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What is required for parallel operation of two transformer
  • Ans. 

    Synchronization, similar voltage ratios, and proper phase sequence are required for parallel operation of two transformers.

    • Synchronization of the two transformers is crucial to ensure they operate together smoothly.

    • The transformers should have similar voltage ratios to prevent imbalance in the system.

    • Proper phase sequence must be maintained to avoid damaging the transformers or causing power quality issues.

  • Answered by AI
  • Q2. Why induction motor is self starting.
  • Ans. 

    Induction motors are self-starting due to the rotating magnetic field produced by the stator windings.

    • Induction motors have a unique design where the stator windings create a rotating magnetic field.

    • This rotating magnetic field induces currents in the rotor windings, causing it to rotate and start the motor.

    • No external starting mechanism is required for induction motors to begin operating.

    • The principle of induction all...

  • Answered by AI

I applied via Approached by Company and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. To know more about personal and family .
  • Q2. What is the goal and objectives,till time achievement.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be open during interview, don't have any fear and give what you did in your journey, avoid any kind of duplicacy.

I applied via Campus Placement and was interviewed before Dec 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Based on your project

Interview Preparation Tips

Interview preparation tips for other job seekers - stick to basics, answer straight forward, try to provide some examples while answering.

I appeared for an interview in Dec 2016.

Interview Questionnaire 

9 Questions

  • Q1. Tell us about yourself.
  • Ans. 

    I am a dedicated and experienced professional with a strong background in law enforcement.

    • 10+ years of experience in law enforcement

    • Strong leadership and communication skills

    • Proven track record of successfully managing high-stress situations

    • Bachelor's degree in Criminal Justice

    • Certified in CPR and first aid

  • Answered by AI
  • Q2. Why do you want to join IOCL?
  • Ans. 

    I want to join IOCL because of its reputation for innovation, growth opportunities, and commitment to sustainability.

    • IOCL is known for its innovative approach in the oil and gas industry

    • I am impressed by the growth opportunities and career development programs offered by IOCL

    • I am passionate about sustainability and appreciate IOCL's commitment to environmental responsibility

    • I believe that working at IOCL will allow me ...

  • Answered by AI
  • Q3. Do you have any plans of doing MS/PhD?
  • Ans. 

    Yes, I am considering pursuing a MS/PhD in the future to further my education and career opportunities.

    • Considering further education for career advancement

    • Interested in gaining specialized knowledge and skills

    • Exploring options for higher academic qualifications

  • Answered by AI
  • Q4. Why Oil and Gas Sector?
  • Ans. 

    Oil and gas sector offers diverse opportunities, global reach, and stability.

    • Global reach: Oil and gas sector operates worldwide, providing opportunities for international experience and networking.

    • Diverse opportunities: From exploration and production to refining and distribution, there are various roles to explore within the sector.

    • Stability: Despite market fluctuations, oil and gas remains a crucial industry for glo...

  • Answered by AI
  • Q5. Questions related to Internships/Projects
  • Q6. Questions related to IOCL's Products.
  • Q7. Give us a brief overview of petroleum refining process.
  • Ans. 

    Petroleum refining is the process of converting crude oil into useful products like gasoline, diesel, and jet fuel.

    • Crude oil is first heated and then sent to a distillation tower where it is separated into different components based on their boiling points.

    • The separated components are then further processed through various refining processes such as cracking, reforming, and hydrotreating.

    • Cracking breaks down heavy hydr...

  • Answered by AI
  • Q8. Some more technical questions related to VDU, CDU, LOBS.
  • Q9. Some questions related to Heat Exchanger Design and its maintenance.

Interview Preparation Tips

Round: Resume Shortlist
Experience: Everyone who had a CGPA of 6.5+ with no live backlogs got shortlisted.

Round: Technical + HR Interview
Experience: The Panel comprised of 4 members (Electrical + Mechanical + Chemical + HR). The interview started with some general HR questions and then they asked questions to check how much I knew about the Oil & Gas Sector and especially IOCL. I was unable to answer questions about Diesel Specifications produced by IOCL.

I had done my summer training at an Oxygen Plant in SAIL so they asked me questions related to the process of separation of oxygen from air and purity of oxygen required in the Steel Industry.

Then I was asked questions related to design of Heat Exchangers and it's maintenance. After that, some very basic questions about distillation column (reflux ratio, use of steam etc) were asked. These questions were pretty straightforward.

Then, they asked me to describe the complete refining process and as I was explaining the process, in-between they asked me questions like: why desalting/dehydrosulphurization is required, why steam is used, effect on product quality on increasing/decreasing reflux ratio, why VDU is needed. These were also very easy questions if you have taken any course related to Petroleum Refinery Engineering.

The last person then gave me a scenario in which I was the shift incharge and there was a major malfunction (fire, leakage) in one of the important equipments?. I was asked to draft a plan according to which I was supposed to take steps.


Tips: Try your best to convince the panel that you are planning to stay in the company for a long time. Justify your passion for Oil and Gas sector.

If you are from chemical engineering stream, thoroughly revise the petroleum refining process as most of the questions will be related to crude distillation.


College Name: IIT Kharagpur

I applied via GATE 2015

Interview Questionnaire 

9 Questions

  • Q1. Tell us about yourself
  • Ans. 

    I am a dedicated and experienced professional with a strong background in law enforcement.

    • 10+ years of experience in law enforcement

    • Strong leadership and communication skills

    • Proven track record of successfully managing and resolving conflicts

    • Bachelor's degree in Criminal Justice

    • Certified in crisis intervention and de-escalation techniques

  • Answered by AI
  • Q2. Tell us about your training and project
  • Ans. 

    I completed a rigorous training program focused on leadership and decision-making skills. For my project, I led a team in implementing a new software system to streamline operations.

    • Completed leadership training program

    • Focused on decision-making skills

    • Led team in implementing new software system

    • Streamlined operations with new system

  • Answered by AI
  • Q3. What is NPSH ? Explain its significance
  • Ans. 

    NPSH stands for Net Positive Suction Head. It is a measure of the pressure available at the suction side of a pump.

    • NPSH is important in determining if a pump can operate without cavitation.

    • It is calculated by subtracting the vapor pressure of the fluid from the total suction head.

    • If the NPSH available is less than the NPSH required, cavitation may occur.

    • Cavitation can damage the pump and reduce its efficiency.

    • NPSH is i...

  • Answered by AI
  • Q4. How does aeroplane fly? Means how it adjusts it's height
  • Ans. 

    An airplane adjusts its height by changing the angle of its wings and using control surfaces.

    • An airplane adjusts its height by changing the angle of its wings, which is controlled by the pilot using the control column or yoke.

    • To climb, the pilot increases the angle of attack of the wings, which increases lift and allows the airplane to gain altitude.

    • To descend, the pilot decreases the angle of attack, reducing lift and...

  • Answered by AI
  • Q5. What is CPM and PERT ? Explain its difference
  • Ans. 

    CPM and PERT are project management techniques used to plan and control complex projects.

    • CPM stands for Critical Path Method and PERT stands for Program Evaluation and Review Technique.

    • CPM is a deterministic method that focuses on the time required to complete a project, while PERT is a probabilistic method that considers uncertainties in project duration.

    • CPM uses a single estimate for each activity duration, while PER...

  • Answered by AI
  • Q6. What are your strengths and weakness?
  • Ans. 

    My strengths include strong communication skills and attention to detail. My weakness is that I can be overly critical of myself.

    • Strengths: strong communication skills

    • Strengths: attention to detail

    • Weakness: overly critical of myself

  • Answered by AI
  • Q7. Aerodynamic profile application in fluid machinery
  • Ans. 

    Aerodynamic profile application in fluid machinery

    • Aerodynamic profiles are used in fluid machinery to optimize performance and efficiency

    • They are designed to minimize drag and maximize lift

    • Examples include airfoils in aircraft wings, propeller blades, and turbine blades

    • Aerodynamic profiles are also used in pumps, fans, and compressors to improve fluid flow

    • They are crucial in the design of vehicles, wind turbines, and o

  • Answered by AI
  • Q8. Have you appeared in any other PSU interview
  • Ans. 

    Yes, I have appeared in PSU interviews before.

    • Yes, I have appeared in interviews for XYZ PSU and ABC PSU.

    • I have experience in facing interview panels and answering questions confidently.

    • I have prepared thoroughly for PSU interviews and understand the selection process.

  • Answered by AI
  • Q9. Why u want to join us?
  • Ans. 

    I want to join because of my passion for serving the community and making a positive impact.

    • Passion for serving others

    • Desire to make a positive impact

    • Interest in contributing to the community

    • Seeking a challenging and rewarding career

  • Answered by AI

Interview Preparation Tips

Round: Call FOR interview
Experience: Based upon GATE 2015 score they called us for interview in Dehradun.
Interviews were started in June.

Gate score weightage is 60 %
Academic Qualification Weightage 20 % bachelor degree and 5 % higher education.
Interview 15 %
Total 100 %
Tips: They give full 20 % to all ( according to a RTI ) in Academic Qualification
Thus GATE Score is a major punch.
Also interview plays good role for those having average ranks.


Round: Other Interview
Experience: Interview comprises both of HR and Technical Questions.
I answered all questions very quickly, hence they were quite impressed.
I was the last candidate to be interviewed on that day.
I tried to bring happy moments while answering HR questions which made the last moments of my interview light and humurous.
Tips: Answer with confidence and keep a smile on your face.

Skill Tips: Don't panic.
Prepare about company in advance.
Keep a smile.
Dress up properly.
Pray to god and take blessings of your parents and teachers.

Skills: Ability To Think Beyond Boundaries, Aptitude, How Much You Are Interested In The Company?, Ability To Work In A Team, Ability To Cope Up With Stress, Ability To Deliver On A Project
College Name: NIT Bhopal
Motivation: PAN India presence.
Package and perks off course.

Funny Moments: I create some humour points in my every interview and luckily in all my interviews no 'khadoos' came.

I appeared for an interview in Sep 2016.

Interview Questionnaire 

2 Questions

  • Q1. Tell about your project
  • Ans. 

    Developed a mobile app for tracking daily water intake

    • Designed user-friendly interface for easy input of water consumption

    • Implemented reminders to encourage regular hydration

    • Integrated with health tracking apps to provide comprehensive health data

    • Received positive feedback from beta testers for improved hydration habits

  • Answered by AI
  • Q2. Tell about your por
  • Ans. 

    I have experience in various internships related to my field of study.

    • Interned at XYZ Company, assisting with data analysis and research projects.

    • Completed a summer internship at ABC Hospital, shadowing doctors and nurses.

    • Worked as an intern at DEF Organization, helping with event planning and coordination.

    • Participated in a research internship at GHI University, conducting experiments and analyzing data.

  • Answered by AI

Interview Preparation Tips

Round: Group Discussion
Duration: 20 minutes

College Name: BITS Pilani

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₹0.8 L/yr - ₹3 L/yr
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