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Indian Oil Corporation Operations Engineer Interview Questions and Answers

Updated 6 Oct 2022

Indian Oil Corporation Operations Engineer Interview Experiences

1 interview found

I applied via Company Website and was interviewed before Sep 2021. There were 3 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 - Aptitude Test 

Aptitude test is just for your IQ test.

Round 3 - HR 

(2 Questions)

  • Q1. They ask you about your profile
  • Q2. Answer is normal whatever it is your profile give it confidentially.

Interview Preparation Tips

Interview preparation tips for other job seekers - Need good command Heat transfer and mass transfer knowledge.

Interview questions from similar companies

I applied via Recruitment Consulltant and was interviewed before Jun 2021. There were 6 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 

(6 Questions)

  • Q1. Explain your self and where did you working current in 2014
  • Q2. Which gas can use for while hot/live tapping
  • Ans. 

    Nitrogen gas is commonly used for hot/live tapping in mechanical engineering.

    • Nitrogen gas is inert and non-reactive, making it safe to use in hot/live tapping processes.

    • It helps to create a protective atmosphere to prevent explosions or fires.

    • Nitrogen gas is readily available and cost-effective.

    • Other gases like argon or carbon dioxide can also be used depending on the specific requirements.

  • Answered by AI
  • Q3. Which method can we follow for railway/road/river crossings
  • Ans. 

    Various methods can be used for railway/road/river crossings depending on the location and other factors.

    • Bridges can be built over the crossing

    • Tunnels can be dug under the crossing

    • Level crossings can be used for roads

    • Flyovers can be constructed for roads

    • Ferries can be used for river crossings

    • Aqueducts can be built for waterways

    • Location, traffic volume, and safety considerations must be taken into account when choosing

  • Answered by AI
  • Q4. Which procedure can follow for pipe lines welding while route and filling
  • Ans. 

    The procedure for pipe lines welding while route and filling involves several steps.

    • Clean the area to be welded thoroughly

    • Tack weld the pipes together

    • Weld the root pass

    • Fill the remaining gap with weld metal

    • Perform post-weld heat treatment if required

    • Inspect the weld for defects

  • Answered by AI
  • Q5. Cross country pipeline code - Nitrogen
  • Q6. Explain About RT, UT, and magnetic partials
  • Ans. 

    RT, UT, and magnetic partials are non-destructive testing methods used in engineering.

    • RT stands for Radiographic Testing and uses X-rays or gamma rays to inspect the internal structure of a material.

    • UT stands for Ultrasonic Testing and uses high-frequency sound waves to detect flaws or defects in a material.

    • Magnetic particle testing uses magnetic fields and iron particles to detect surface and slightly subsurface defec...

  • Answered by AI
Round 3 - Assignment 

What IS API 5L

Round 4 - Coding Test 

What is ASME B 16.5

Round 5 - Coding Test 

What is ASME IX

Round 6 - Coding Test 

Whatbis ASME B 31.4

Interview Preparation Tips

Topics to prepare for Saudi Aramco Mechanical Engineer interview:
  • ASME, API, ASTM, ANSI,
Interview preparation tips for other job seekers - Feel free just listion and first what they are asking then don't give chance to them ask any other questions.
Even I attended in Chennai for other company but they call me for as a Project manager interview and they ask me questions in design, fabrication and supply time management. Then it's confirmed that post they already reserved for some others. If they reserve already they should not call for interveiw.

I applied via Company Website and was interviewed in Aug 2022. There were 3 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 - Technical 

(1 Question)

  • Q1. Basic Question related to mechanical basics
Round 3 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Strength & Weakness, Where you see 5 years from now.

Interview Preparation Tips

Interview preparation tips for other job seekers - Be strong on your basic engineering. Prepare HR round. HR process is very slow. It will take at least 1.5months to release your offer.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Feb 2024.

Round 1 - Interview 

(2 Questions)

  • Q1. Tell me about Pumps
  • Q2. Can you design a pump with its specifications parameters
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in May 2024. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What are you responsibility on this pleace
  • Q2. What is the Them leader
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Explain Challenges with Well Testing in the field.
  • Ans. 

    Challenges in well testing include equipment malfunctions, environmental factors, and data interpretation.

    • Equipment malfunctions can lead to inaccurate results.

    • Environmental factors such as weather conditions or nearby activities can affect testing.

    • Data interpretation can be complex and require specialized knowledge.

    • Pressure build-up in the well can also pose challenges during testing.

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.

Round 1 - Technical 

(3 Questions)

  • Q1. Tell me about yourself
  • Ans. 

    I am a dedicated Mechanical Engineer with a passion for problem-solving and innovation.

    • Graduated with a degree in Mechanical Engineering from XYZ University

    • Experienced in designing and testing mechanical systems

    • Proficient in CAD software such as SolidWorks and AutoCAD

    • Strong analytical skills and attention to detail

    • Worked on projects like designing a new cooling system for a car engine

  • Answered by AI
  • Q2. Favorite subject
  • Ans. 

    My favorite subject is Thermodynamics because I enjoy studying the transfer of energy and heat.

    • I find the laws of thermodynamics fascinating

    • I enjoy analyzing heat transfer processes

    • I like studying the relationship between energy and work

  • Answered by AI
  • Q3. Scavenging, spoliers, gas cycles, etc.
Round 2 - HR 

(2 Questions)

  • Q1. Biggest achievement
  • Ans. 

    Designed and implemented a new cooling system for a high-performance engine, increasing efficiency by 15%.

    • Led a team of engineers to analyze current cooling system performance

    • Designed a new cooling system using advanced simulation software

    • Implemented the new system on a prototype engine and conducted performance tests

    • Achieved a 15% increase in efficiency compared to the previous system

  • Answered by AI
  • Q2. Have you any time involved in decision making, can be during any task
  • Ans. 

    Yes, I have been involved in decision making during various tasks.

    • I have made decisions regarding design changes in projects to improve efficiency.

    • I have been part of a team that had to decide on the best approach to solve a technical problem.

    • I have made decisions on prioritizing tasks to meet project deadlines.

    • I have been involved in selecting the most suitable materials for a project based on cost and performance req

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident, and prepare your intro atleast 10 times before the interview, and choose the favorite subject wisely.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. What would you do if the design called for tight tolerances and the part was manufactured out of tolerance
  • Ans. 

    I would assess the impact of the out-of-tolerance part and determine if it can still function within acceptable limits or if it needs to be reworked or replaced.

    • Assess the functionality of the part with the out-of-tolerance dimensions

    • Determine if the part can still meet the overall design requirements despite being out of tolerance

    • Consider the potential impact on the performance and safety of the final product

    • Consult w...

  • Answered by AI
Round 3 - Technical 

(1 Question)

  • Q1. Tell me what you see about his drawing
  • Ans. 

    The drawing appears to be a mechanical component with multiple parts and dimensions.

    • The drawing includes various geometric shapes such as circles, rectangles, and lines.

    • There are labels indicating dimensions and measurements for each part.

    • The drawing may also include annotations or symbols representing different materials or processes.

    • It seems to be a detailed technical drawing for manufacturing or assembly purposes.

  • Answered by AI

Skills evaluated in this interview

Round 1 - Technical 

(3 Questions)

  • Q1. What is yield strength and ultimate strength
  • Ans. 

    Yield strength is the stress at which a material begins to deform plastically, while ultimate strength is the maximum stress a material can withstand before breaking.

    • Yield strength is the point where a material starts to deform plastically, meaning it will not return to its original shape once the stress is removed.

    • Ultimate strength is the maximum stress a material can withstand before it breaks or fractures.

    • Yield stre...

  • Answered by AI
  • Q2. All FEA related questions
  • Q3. All basic SOM and SHEET METAL RELATED QUESTIONS

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare for fea and matlab even though if your gd shows only creo modelling responsibility.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Feb 2025, where I was asked the following questions.

  • Q1. Mostly questions were from Artificial lift performance, especially based on ESP.
  • Q2. Primary questions from Reservoir Engineering.

Indian Oil Corporation Interview FAQs

How many rounds are there in Indian Oil Corporation Operations Engineer interview?
Indian Oil Corporation interview process usually has 3 rounds. The most common rounds in the Indian Oil Corporation interview process are Resume Shortlist, Aptitude Test and HR.

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Indian Oil Corporation Operations Engineer Salary
based on 6 salaries
₹3 L/yr - ₹5.7 L/yr
32% less than the average Operations Engineer Salary in India
View more details

Indian Oil Corporation Operations Engineer Reviews and Ratings

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5.0/5

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