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John Energy Chief Mechanic Interview Questions and Answers

Updated 20 Aug 2021

John Energy Chief Mechanic Interview Experiences

1 interview found

I applied via Company Website and was interviewed in Jul 2021. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. Koomey unit principles and working systems
  • Ans. 

    Koomey unit is a hydraulic accumulator system used to provide high-pressure fluid for well control operations.

    • Koomey unit is also known as a BOP control unit.

    • It consists of hydraulic pumps, accumulators, and control valves.

    • The unit is used to operate the blowout preventer (BOP) stack during drilling operations.

    • It can also be used to close the BOP in case of an emergency.

    • The system is designed to maintain pressure even ...

  • Answered by AI
  • Q2. Top drive maintenance
  • Q3. Cat 3512B engine maintenance
  • Q4. Mud Pump all Clarence

Interview Preparation Tips

Interview preparation tips for other job seekers - I finished my interview with 1st rank

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. What's the role of electrical technician
  • Ans. 

    Electrical technicians are responsible for installing, maintaining, and repairing electrical systems and equipment.

    • Installing electrical systems in new construction projects

    • Maintaining electrical equipment to ensure proper functioning

    • Repairing electrical systems in case of malfunctions

    • Troubleshooting electrical issues to identify root causes

    • Following safety protocols and regulations to prevent accidents

    • Collaborating wi

  • Answered by AI
  • Q2. Maintenance and install

I applied via Monster

Interview Questionnaire 

6 Questions

  • Q1. 1. What is Foxboro iA series DCS ?
  • Ans. 

    Foxboro iA series DCS is a distributed control system used in industrial automation.

    • It is designed for process automation and control in industries such as oil and gas, power, and chemical.

    • It offers advanced control strategies and algorithms for optimizing process performance.

    • It includes a range of hardware and software components, including controllers, I/O modules, and engineering tools.

    • It supports various communicat...

  • Answered by AI
  • Q2. 2. Features of Triconex PLC ?
  • Ans. 

    Triconex PLC is a safety instrumented system used in critical applications.

    • Triconex PLC is designed for high availability and fault tolerance.

    • It uses triple modular redundancy (TMR) architecture to ensure safety and reliability.

    • It has a wide range of input/output modules and communication options.

    • It is used in industries such as oil and gas, chemical, and power generation.

    • It has features such as diagnostics, testing, a...

  • Answered by AI
  • Q3. 3. What is spanning tree protocol ?
  • Ans. 

    Spanning Tree Protocol (STP) is a network protocol that prevents loops in a network topology.

    • STP is used to prevent broadcast storms caused by loops in a network.

    • It works by selecting a root bridge and disabling redundant paths to prevent loops.

    • STP is implemented in switches and bridges in a network.

    • It is defined in IEEE 802.1D standard.

    • STP has several variants such as Rapid STP (RSTP) and Multiple STP (MSTP).

  • Answered by AI
  • Q4. How different plants DCS systems are interconnected ?
  • Ans. 

    DCS systems in different plants are interconnected through various communication protocols.

    • DCS systems use communication protocols like Modbus, Profibus, and Ethernet/IP to interconnect.

    • Interconnection allows for data sharing and control between different plant areas.

    • DCS systems can also be connected to other systems like SCADA and MES for higher-level control and monitoring.

    • Interconnection can be achieved through wire...

  • Answered by AI
  • Q5. Features of Siemens PLC, GE Fanuc, Alen Bradley PLC ?
  • Ans. 

    Siemens, GE Fanuc, and Allen Bradley PLCs are programmable logic controllers used in industrial automation.

    • Siemens PLCs are known for their high processing speed and advanced communication capabilities.

    • GE Fanuc PLCs are known for their flexibility and ability to handle complex applications.

    • Allen Bradley PLCs are known for their user-friendly programming software and extensive support network.

    • All three PLCs offer a rang...

  • Answered by AI
  • Q6. What are the steps to be taken for work in a safety critical loop ?
  • Ans. 

    Steps to be taken for work in a safety critical loop

    • Identify the safety critical loop

    • Define the safety requirements

    • Design the loop with redundancy and fault tolerance

    • Implement the loop with safety standards

    • Test the loop thoroughly

    • Maintain the loop regularly

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be very thorough in the field you are working . Should have indepth knowledge

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - HR 

(2 Questions)

  • Q1. Past experience
  • Q2. Salary expectation
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
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 

I am com this company 12 years old but i am Lerner oby my with my cowlicks

Round 3 - Technical 

(1 Question)

  • Q1. Technician responsibilitys
Round 4 - Technical 

(1 Question)

  • Q1. Gas purification Gas analysis

Interview Preparation Tips

Interview preparation tips for other job seekers - Gas analysis, pipe line piging,
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Apr 2024. There were 5 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. All electrical questions
  • Q2. Star delta star
  • Ans. Star delta is moter smuth normal moter start
  • Answered by Bhagat Mukesh
Round 2 - Technical 

(2 Questions)

  • Q1. Fild work and oppression
  • Ans. Power issue late and power on of
  • Answered by Bhagat Mukesh
  • Q2. Isulate propyl fider
  • Ans. Fedar off feuse remove, cantrol feuse remove, emargency push button push
  • Answered by Bhagat Mukesh
Round 3 - Technical 

(2 Questions)

  • Q1. MCb,Mpcb ,rrcb,elcb ,
  • Ans. Miniature circuit breaker Moter protection circuit breaker Residual current circuit breaker Earth leakage circuit breaker
  • Answered Anonymously
  • Q2. Mother mantnece
Round 4 - Technical 

(2 Questions)

  • Q1. Hv,lv,panal in work
  • Q2. Transformer in work
  • Ans. 

    A transformer is a device that transfers electrical energy between two or more circuits through electromagnetic induction.

    • Transformers are used to increase or decrease voltage levels in electrical circuits.

    • They consist of primary and secondary coils wound around a core made of ferromagnetic material.

    • Step-up transformers increase voltage for long-distance power transmission, while step-down transformers decrease voltage...

  • Answered by AI
Round 5 - Technical 

(1 Question)

  • Q1. Air compressor woking

I applied via Campus Placement and was interviewed before Nov 2018. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Motor maintenance battery bank Breaker maintenance Earthpit
  • Q2. Which type of maintenance of induction motor
  • Ans. 

    There are two types of maintenance for induction motors: preventive and corrective.

    • Preventive maintenance involves regular inspections, cleaning, lubrication, and replacement of worn parts to prevent breakdowns.

    • Corrective maintenance involves repairing or replacing parts after a breakdown has occurred.

    • Preventive maintenance is more cost-effective in the long run and helps to extend the life of the motor.

    • Examples of pre...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - How many maintenance of squirrel cage induction motor

Manager Interview Questions & Answers

GAIL user image Anonymous

posted on 1 Aug 2022

I applied via Company Website and was interviewed before Aug 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Technical questions.

Round 2 - One-on-one 

(1 Question)

  • Q1. About petrochemical operations.

Interview Preparation Tips

Interview preparation tips for other job seekers - You should be technically sound about your subject. You should know the business profile of the company as well as it's different operations.

Interview Questionnaire 

6 Questions

  • Q1. Tell me about your internships
  • Ans. 

    I have completed two internships, one in a software development company and the other in a manufacturing firm.

    • Interned as a software developer at XYZ Technologies for 6 months

    • Worked on developing a web application using ReactJS and NodeJS

    • Assisted in testing and debugging the application

    • Interned as a production engineer at ABC Manufacturing for 3 months

    • Assisted in the production process and quality control

    • Learned about ...

  • Answered by AI
  • Q2. Tell me about yourself ?
  • Ans. 

    I am a recent engineering graduate with a passion for problem-solving and innovation.

    • I graduated with a degree in Mechanical Engineering from XYZ University.

    • During my time at university, I completed several projects that involved designing and building prototypes.

    • I am proficient in CAD software such as SolidWorks and have experience with programming languages like Python.

    • I am a quick learner and enjoy working in a team...

  • Answered by AI
  • Q3. Tell me about your hobbies?
  • Ans. 

    I enjoy reading, playing sports, and exploring new places.

    • Reading books on various topics such as science fiction, biographies, and history

    • Playing basketball and badminton with friends

    • Traveling to new cities and trying local cuisine

    • Learning new languages and cultures through books and travel

  • Answered by AI
  • Q4. Tell me about 2 failures and how did you overcome them ?
  • Ans. 

    I failed to meet a project deadline and failed to secure an internship. I overcame them by learning from my mistakes and improving my skills.

    • Failed to meet a project deadline due to poor time management

    • Overcame it by creating a detailed schedule and prioritizing tasks

    • Failed to secure an internship due to lack of experience

    • Overcame it by taking online courses and gaining relevant skills

    • Learned from both failures and imp

  • Answered by AI
  • Q5. What were the other companies you are going to sit during your placements?
  • Ans. 

    I am sitting for placements in companies like ABC, XYZ, and PQR.

    • ABC

    • XYZ

    • PQR

  • Answered by AI
  • Q6. Why Oil and gas sector?
  • Ans. 

    Oil and gas sector offers challenging work, global exposure, and opportunities for growth.

    • Oil and gas sector is a dynamic and constantly evolving industry.

    • It offers a wide range of challenging work, from exploration to production and refining.

    • Working in this sector provides global exposure and opportunities to work on projects in different parts of the world.

    • The sector offers opportunities for growth and career advance...

  • Answered by AI

Interview Preparation Tips

Round: Group Discussion
Experience: There were 10 candidates in each group and I guess there were around 5 such groups, and all are from chemical engineering department. Group discussion for the GG students were held separately. Duration of the group discussion was only 5 min and so each candidate will get a chance to speak for less than 1-2 min. During the GD I made good conclusion which was also supported by the whole group which gave an added advantage to my points. GD's with my batch mates really helped me because discussing with your friends gives you broader perspective, better understanding of the topics, get to to know your weaknesses, reduce fear and stress during the GD's.The Key is ' be confident, put relevant points and try to convince the group in a smart way'. FInally only 2 students from each group got shortlisted and around 12 students were selected for the final Technical & HR Interview.
Tips: Be updated with the recent topics and better to do some group discussions with your wing mates or batch mates. This really helped me. Do not shout in the GD, put your points in smart way and make a good conclusion... :)
Duration: 5 Min minutes

Round: Technical Interview
Experience: My Interview started with ' Tell me about yourself' and then they grilled me on my internships. I did my third year Intern in Haldia Petrochemicals Ltd. Q1. What are the different types of pumps and their parts? (Centrifugal, positive displacement pumps and their parts) Q2. Different types of valves and their application? (Like gate, globe, butterfly, Non return valves (NRV)- check valves, ball valves etc.) Q3. Calculation of pressure drop through a pipe in turbulent flow (Not hagen poiseuille equation,it is for Laminar flow)
Q4. Pinch temperature Q5. Temperature profiles for cold fluid and hot fluid in cocurrent and counter current heat exchanger. Q6. Advantages of counter current heat exchanger over co current heat exchanger. (Other than LMTD, Check DQ Kern)- Ans. Hot fluid outlet temperature can go below cold fluid inlet temperature in counter current HEx which is not possible in case of co current HEx.
Q7. JT Expansion. MY 4th year internship was in U of S, canada where I developed two processes for manufacturing of glycerol carbonate and propylene glycol using Aspen hysys. They asked me regarding mass, energy balance (utilities) involved in the process and how I applied pinch analysis for the processes.


Tips: Be Confident, Be completely prepared with your projects, should be strong in your core concepts and try to answer logically.

Round: HR Interview
Experience: These are all basic standard questions
Tips: Be yourself, state real life examples and make some good stories.

General Tips: Be positive, keep smiling and make proper plan for the placements and work accordingly.
Skills: Chemical Engineering Basics
College Name: IIT Kharagpur
Motivation: I am interested to pursue my career in core chemical engineering and CAIRN is one of the best options available in oil and gas industry.

I appeared for an interview in Oct 2016.

Interview Preparation Tips

Round: Resume Shortlist
Experience: The shortlist had 26 students and it was completely on the basis of OGPA
Tips: Maintain good grades throughout

Round: Group Discussion
Experience: Initially it was a bit chaotic but everyone calmed down in a few minutes. I gave in some good points ,others also contributed in a healthy discussion and we came to a common conclusion that whenever players come on to the field they give their 100%
Tips: Try to pitch in at the right moment with good points rather than constant blabbering
Duration: 20 minutes

Round: Technical + HR Interview
Tips: Stay Calm and answer confidently. Take time to revive and frame your answer properly. Do not be in a hurry

College Name: IIT ISM Dhanbad

John Energy Interview FAQs

What are the top questions asked in John Energy Chief Mechanic interview?

Some of the top questions asked at the John Energy Chief Mechanic interview -

  1. Koomey unit principles and working syste...read more
  2. Top drive maintenan...read more
  3. Cat 3512B engine maintenan...read more

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John Energy Chief Mechanic Salary
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