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Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic Interview Questions and Answers

Updated 14 Feb 2023

Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Jan 2023. 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 - Technical 

(4 Questions)

  • Q1. 1. What is the VAV, HVAC, AHU, full froms 2. What are the refrigeration cycle 3. Types of chillers
  • Ans. 

    This interview question is about VAV, HVAC, AHU, refrigeration cycle, and types of chillers.

    • VAV stands for Variable Air Volume, HVAC stands for Heating, Ventilation, and Air Conditioning, and AHU stands for Air Handling Unit.

    • The refrigeration cycle is a process that removes heat from a low-temperature area and transfers it to a high-temperature area.

    • Types of chillers include air-cooled chillers, water-cooled chillers, ...

  • Answered by AI
  • Q2. 1. Variable air volume, Heating variable Air conditioning, Air handler unit, 2. Compressor condenser Drive filter expansion evaporator 3. Water cooled chiller & Air cooled chiller
  • Q3. 4. Type of compressors
  • Ans. 

    There are several types of compressors used in refrigeration and air conditioning systems.

    • Reciprocating compressors use pistons to compress refrigerant gas.

    • Rotary compressors use rotating blades or vanes to compress refrigerant gas.

    • Scroll compressors use two spiral-shaped scrolls to compress refrigerant gas.

    • Centrifugal compressors use a high-speed impeller to compress refrigerant gas.

    • Screw compressors use two interlock...

  • Answered by AI
  • Q4. Screw compressor Piston compressor Centrifugal compressor Reciprocating compressor Rotary-screw compressor Scroll compressor

Interview Preparation Tips

Topics to prepare for Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic interview:
  • HVAC System
  • Chiller Plant
Interview preparation tips for other job seekers - Hvac, chillers, package ac, vrf, split ac, window ac,

Top trending discussions

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Interview Tips & Stories
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Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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I appeared for an interview before Jun 2016.

Interview Preparation Tips

Round: Group Discussion
Experience: After topic was announced , we were given one minute time to think about it. We wrote our points on a paper given to us. After some time ,One person started to speak about the topic . Peoples were giving their views one after other. I got chance to speak two times in the time period of 15 minutes. I put my points . Finally it ended well.
Tips: Speak at least for two times , put yr points as early as possible otherwise some other might have same view.if he would speak before u then u have to think something different again.u might not get chance to speak again.
Duration: 15 minutes

Round: Technical + HR Interview
Experience: Selection process was mainly depends on your performance in GATE exam and academic results. 15-20 % weightage was for this round and GD.
They asked few questions (basic ) related to technical and HR.

College Name: NIT Jalandhar

Refrigeration and Air Conditioning Mechanic Interview Questions Asked at Other Companies

Q1. 1. What is the VAV, HVAC, AHU, full froms 2. What are the refrige ... read more
Q2. If the condensing fan motor is faulty, what steps can you take to ... read more
asked in EMIS
Q3. What materials are needed when there is a breakdown?
Q4. 4. Type of compressors
asked in JCB
Q5. What can you do for the company, and why?

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

I applied via Naukri.com and was interviewed before Oct 2017. There was 0 interview round.

Interview Preparation Tips

General Tips: Need to stay calm and and should apply presence of mind
Skills: Communication, Body Language, Problem Solving
Duration: 1-4 weeks

I applied via Naukri.com and was interviewed before May 2021. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Which týpes uses valve in chemical industries
  • Ans. 

    Various types of valves are used in chemical industries for different purposes.

    • Gate valves are commonly used in chemical industries for on/off control of flow.

    • Globe valves are used for regulating flow and controlling pressure.

    • Ball valves are suitable for high-pressure applications and provide tight shut-off.

    • Butterfly valves are used for throttling and controlling flow.

    • Diaphragm valves are used for handling corrosive an...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - I'm very hard working in this Chemical field

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

Interview Questionnaire 

4 Questions

  • Q1. Mechanical questions
  • Q2. Mechanical pump
  • Q3. Compressor two staze reciprocating
  • Ans. 

    A compressor with two stages of reciprocating motion.

    • Two-stage reciprocating compressors have two cylinders that compress the air twice.

    • The first stage compresses the air and sends it to the second stage for further compression.

    • This type of compressor is commonly used in industrial applications such as refrigeration and air conditioning.

    • The two-stage design allows for higher efficiency and greater pressure output compa...

  • Answered by AI
  • Q4. Tribune questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Mechanical questions and gk current affairs and real life

I applied via Recruitment Consulltant and was interviewed in Nov 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 
Round 2 - Group Discussion 
Pro Tip by AmbitionBox:
Be a good listener. GDs are not just about speaking. Your listening skills will give you a lot of points to counter and speak when your turn comes.
View all tips
Round 3 - HR 

Interview Preparation Tips

Interview preparation tips for other job seekers - Mai Arun Kumar iocl panipat refinery se apprentice hu
Are these interview questions helpful?
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

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

  • Q1. Whats ur skill
  • Ans. 

    I possess strong analytical skills, proficiency in production processes, and a commitment to optimizing efficiency and quality.

    • Proficient in CAD software for designing production layouts, improving workflow efficiency.

    • Experience in Lean Manufacturing principles, successfully reducing waste by 20% in a previous role.

    • Strong problem-solving skills, demonstrated by troubleshooting production line issues that increased outp...

  • Answered by AI
  • Q2. How much experience do u have
  • Ans. 

    I have over 5 years of experience in production engineering, focusing on process optimization and quality control.

    • Worked on a project that improved production efficiency by 20% through lean manufacturing techniques.

    • Led a team in implementing a new quality assurance protocol that reduced defects by 15%.

    • Collaborated with cross-functional teams to streamline operations and reduce lead times.

    • Conducted regular training sess...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - never try to join this company because of job security
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

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

  • Q1. Sql based questions
  • Q2. Joins aggregations etc
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

60 minute 60 questions

Round 2 - Group Discussion 

General topics were asked on how manufacturing sector getting affected

Round 3 - One-on-one 

(2 Questions)

  • Q1. Previous internship job related qns asked
  • Q2. Situation when u faced adversity and how you fought it

Oil And Natural Gas Corporation Interview FAQs

How many rounds are there in Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic interview?
Oil And Natural Gas Corporation interview process usually has 2 rounds. The most common rounds in the Oil And Natural Gas Corporation interview process are Resume Shortlist and Technical.
What are the top questions asked in Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic interview?

Some of the top questions asked at the Oil And Natural Gas Corporation Refrigeration and Air Conditioning Mechanic interview -

  1. 1. What is the VAV, HVAC, AHU, full froms 2. What are the refrigeration cycle ...read more
  2. 4. Type of compress...read more
  3. Screw compressor Piston compressor Centrifugal compressor Reciprocating compres...read more

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Overall Interview Experience Rating

5/5

based on 1 interview experience

Difficulty level

Easy 100%

Duration

Less than 2 weeks 100%
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