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ADNOC Piping Supervisor Interview Questions, Process, and Tips

Updated 14 May 2023

ADNOC Piping Supervisor Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
-

I applied via Naukri.com and was interviewed in Nov 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
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Round 2 - Technical 

(13 Questions)

  • Q1. How much carbon percentage in Carbon Steel
  • Ans. 

    The carbon percentage in carbon steel varies from 0.05% to 2.0% depending on the grade.

    • Carbon steel is an alloy of iron and carbon.

    • The amount of carbon in carbon steel determines its strength and hardness.

    • Low carbon steel contains less than 0.3% carbon, while high carbon steel contains more than 0.6% carbon.

    • Some common grades of carbon steel and their carbon percentage are: A36 (0.26%), 1018 (0.18%), and 1045 (0.45%).

  • Answered by AI
  • Q2. What is difference between concentric and eccentric reducer
  • Ans. 

    Concentric reducers have a common centerline while eccentric reducers have an offset centerline.

    • Concentric reducers are used in vertical piping systems to prevent accumulation of air pockets.

    • Eccentric reducers are used in horizontal piping systems to prevent accumulation of solids or liquids.

    • Concentric reducers are symmetrical while eccentric reducers are not.

    • Concentric reducers are easier to manufacture and install th

  • Answered by AI
  • Q3. Which reinforcement fittings used in piping
  • Ans. 

    Reinforcement fittings are used to strengthen and support piping systems.

    • Common reinforcement fittings include tees, elbows, reducers, and couplings.

    • Telescoping fittings are used to adjust the length of piping systems.

    • Flange fittings are used to connect pipes to other equipment or structures.

    • Saddles are used to support piping systems on walls or ceilings.

    • Reinforcement fittings can be made of various materials, includin...

  • Answered by AI
  • Q4. Why elbo let used in piping
  • Ans. 

    Elbow lets change the direction of flow in piping system.

    • Elbows are used to change the direction of flow in a piping system.

    • They come in different angles such as 45°, 90° and 180°.

    • They are available in different materials such as PVC, copper, steel, etc.

    • Elbows can be welded or threaded onto the piping system.

    • They are commonly used in plumbing, HVAC, and industrial piping systems.

  • Answered by AI
  • Q5. If we have to replace bypass valve on top of vessel and plant is running, then how to replace that valve ??
  • Ans. 

    The bypass valve can be replaced by isolating the vessel, depressurizing it, and then replacing the valve.

    • Isolate the vessel by closing the inlet and outlet valves

    • Depressurize the vessel by venting the gas or liquid

    • Remove the old valve and install the new one

    • Repressurize the vessel and open the inlet and outlet valves

  • Answered by AI
  • Q6. What is Permit to work
  • Ans. 

    Permit to work is a formal written system used to control high-risk activities.

    • It is a document that outlines the work to be done and the hazards associated with it.

    • It is used to ensure that all necessary safety precautions are taken before work begins.

    • It is issued by a competent authority and must be signed by all parties involved in the work.

    • Examples include hot work permits, confined space permits, and excavation pe

  • Answered by AI
  • Q7. Tell me about yourself and your experience
  • Q8. What is isolation and how many types of isolation
  • Ans. 

    Isolation is the process of separating a system or equipment from its energy source to ensure safety during maintenance or repair.

    • Isolation involves disconnecting a system or equipment from its power source, locking it out, and tagging it to prevent accidental re-energization.

    • There are two types of isolation: electrical isolation and mechanical isolation.

    • Electrical isolation involves disconnecting the electrical supply...

  • Answered by AI
  • Q9. What is positive isolation
  • Ans. 

    Positive isolation is the process of completely isolating a section of a system to prevent any flow or transfer of material.

    • Positive isolation is achieved by using valves, blinds, or other physical barriers to completely block the flow of material.

    • It is important for safety and maintenance purposes, as it allows workers to safely perform tasks without the risk of exposure to hazardous materials.

    • Examples of positive iso...

  • Answered by AI
  • Q10. How to do positive isolation
  • Ans. 

    Positive isolation is the process of completely isolating a section of piping or equipment from the rest of the system to perform maintenance or repairs.

    • Identify the section of piping or equipment that needs to be isolated

    • Close all valves and block all lines leading to and from the section

    • Use blind flanges or spectacle blinds to physically block the section

    • Ensure that the isolation is secure and pressure tested before ...

  • Answered by AI
  • Q11. When we do nitrogen purging and why it's required
  • Ans. 

    Nitrogen purging is done to remove impurities and oxygen from pipelines before commissioning or maintenance work.

    • Nitrogen purging is done to create an inert atmosphere inside the pipeline to prevent explosions or fires.

    • It is required before commissioning or maintenance work to remove impurities and oxygen from the pipeline.

    • Nitrogen purging is also done to prevent corrosion and contamination of the pipeline.

    • It is common...

  • Answered by AI
  • Q12. What is difference between pipe and tube
  • Ans. 

    Pipes are used to transport fluids and gases, while tubes are used for structural purposes.

    • Pipes have a standardized outer diameter and wall thickness, while tubes have a standardized inner diameter and wall thickness.

    • Pipes are typically round, while tubes can be round, square, or rectangular.

    • Pipes are often used in plumbing and HVAC systems, while tubes are used in construction and engineering applications.

    • Pipes are u...

  • Answered by AI
  • Q13. Which pipe material or standard used in past experience
  • Ans. 

    I have experience working with various pipe materials and standards including carbon steel, stainless steel, and PVC.

    • I have worked with carbon steel pipes in a power plant project.

    • I have also worked with stainless steel pipes in a pharmaceutical plant project.

    • In a water treatment plant project, I have worked with PVC pipes.

    • I am familiar with ASME B31.3, API 5L, and ASTM standards for pipe materials and welding procedur

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Read your resume carefully, be confident, eye contact and imagine that you knew better than them , if you don't know say I don't know , don't answer in stories , always prepare for interview as per company requirements.

Interview questions from similar companies

Interview experience
1
Bad
Difficulty level
-
Process Duration
-
Result
-

Interview Preparation Tips

Interview preparation tips for other job seekers - Mdpe

Interview Preparation Tips

Interview preparation tips for other job seekers - Good knowledge and full safety privation good environment full sopport

Interview Questionnaire 

1 Question

  • Q1. What is java
  • Ans. 

    Java is a high-level programming language used for developing applications and software.

    • Java is object-oriented and platform-independent.

    • It is used for developing web, mobile, and desktop applications.

    • Java code is compiled into bytecode and executed by the Java Virtual Machine (JVM).

    • Popular frameworks and tools for Java development include Spring, Hibernate, and Maven.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - checkout google

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before Jun 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Puzzle solving

Interview Preparation Tips

Interview preparation tips for other job seekers - Properly interviewed

I applied via Company Website and was interviewed before Jan 2021. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Wifi connectivity

Interview Preparation Tips

Interview preparation tips for other job seekers - Learn about wifi and performance

I applied via Naukri.com and was interviewed in Dec 2020. There was 1 interview round.

Interview Questionnaire 

1 Question

  • Q1. Related to civil quality engineer questions

Interview Preparation Tips

Interview preparation tips for other job seekers - This interview is very important for civil quality engineer .

I applied via Campus Placement

Interview Preparation Tips

Skill Tips: Thermodynamics
Mass transfer
Heat transfer
CRE
Skills: Core Courses Concepts
Duration: 2
College Name: IIT Madras
Motivation: No motivation whatsoever.

Engineer Interview Questions & Answers

TCS user image Anonymous

posted on 1 Jul 2015

Interview Preparation Tips

Round: Other Interview
Experience: They were core interviews basically and highly focused on Resume points.
Tips: Projects and internships were given significant importance and they grilled students on these aspects.

General Tips: Interview questions were mostly core sprinkled with a few HR questions. They asked a lot of questions on Heat,mass transfer. They look for students who have good conceptual knowledge of fundamentals of core courses.
Skill Tips: High importance was given to all courses basics.
Skills: Core courses concepts., Project and internship experiences.
College Name: IIT MADRAS

Interview Preparation Tips

Round: Test
Duration: 1 hour 10 minutes

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ADNOC Interview FAQs

How many rounds are there in ADNOC Piping Supervisor interview?
ADNOC interview process usually has 2 rounds. The most common rounds in the ADNOC interview process are Resume Shortlist and Technical.
What are the top questions asked in ADNOC Piping Supervisor interview?

Some of the top questions asked at the ADNOC Piping Supervisor interview -

  1. If we have to replace bypass valve on top of vessel and plant is running, then ...read more
  2. What is difference between concentric and eccentric redu...read more
  3. How much carbon percentage in Carbon St...read more

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ADNOC Piping Supervisor Interview Process

based on 1 interview

Interview experience

4
  
Good
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