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Think Gas Ludhiana Senior Engineer Interview Questions, Process, and Tips

Updated 1 Dec 2023

Top Think Gas Ludhiana Senior Engineer Interview Questions and Answers

  • Q1. What types of defects in welding and what is acceptance criteria of common defects ?
  • Q2. How hydrotest is done. Explain in details with formula for air volume calculation.
  • Q3. Which is longest pipeline route in India and World ?
View all 15 questions

Think Gas Ludhiana Senior Engineer Interview Experiences

4 interviews found

Senior Engineer Interview Questions & Answers

user image Ajay D. Patil

posted on 1 Dec 2023

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Nov 2023. 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 

(2 Questions)

  • Q1. How to handle emergency PE pipeline damages ?
  • Ans. 

    Emergency PE pipeline damages can be handled by following proper protocols and procedures.

    • Immediately isolate the damaged section of the pipeline to prevent further leakage or damage.

    • Notify the relevant authorities and emergency response teams to assess the situation and provide assistance.

    • Implement temporary repairs or containment measures to minimize the impact of the damage.

    • Coordinate with the appropriate stakeholde...

  • Answered by AI
  • Q2. What kind of instruments are there in District Regulating Skid ???
  • Ans. 

    District Regulating Skid instruments include pressure gauges, flow meters, control valves, and temperature sensors.

    • Pressure gauges are used to measure the pressure of the fluid in the skid.

    • Flow meters are used to measure the flow rate of the fluid passing through the skid.

    • Control valves are used to regulate the flow or pressure of the fluid.

    • Temperature sensors are used to measure the temperature of the fluid in the ski

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. Tell me about your self ???
  • Ans. 

    I am a highly experienced Senior Engineer with a strong background in software development and project management.

    • Over 10 years of experience in software development

    • Proficient in multiple programming languages such as Java, C++, and Python

    • Extensive knowledge of software development methodologies and best practices

    • Proven track record of successfully leading and delivering complex projects

    • Strong problem-solving and analy...

  • Answered by AI
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in May 2023. 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. Confidential ,this shall not be explained
Round 3 - HR 

(1 Question)

  • Q1. Salary discussion

Interview Preparation Tips

Topics to prepare for Think Gas Ludhiana Senior Engineer interview:
  • CITY GAS DISTRIBUTION
Interview preparation tips for other job seekers - Sorry

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Q5. When you will perform Half or Full engine overhauling.

I applied via Referral and was interviewed before Jun 2021. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. What is the difference between pe80 and pe 100.
  • Ans. 

    PE80 and PE100 are types of polyethylene pipes with different pressure ratings and material properties.

    • PE80 has a minimum required strength (MRS) of 8 MPa, while PE100 has an MRS of 10 MPa.

    • PE100 has better resistance to stress cracking and higher pressure rating compared to PE80.

    • PE100 is typically used for higher pressure applications such as gas distribution, while PE80 is used for lower pressure applications like wat...

  • Answered by AI
Round 3 - HR 

(1 Question)

  • Q1. How many group of your company.
Round 1 - HR 

(1 Question)

  • Q1. School, college name, passout year, marks, Percentage, etc. All genuine questions only. Previous company experience. Reason for change, etc.
Round 2 - Technical 

(12 Questions)

  • Q1. What grades of steel pipe used in cgd?
  • Ans. 

    Various grades of steel pipe are used in CGD (City Gas Distribution).

    • Different grades of steel pipe are used in CGD based on factors like pressure rating, temperature, and application requirements.

    • Common grades of steel pipe used in CGD include API 5L Grade B, ASTM A106 Grade B, and ASTM A333 Grade 6.

    • Higher grades of steel pipe may be used for high-pressure applications or in corrosive environments.

    • The selection of ste...

  • Answered by AI
  • Q2. Which type of welding and what electrode is used ?
  • Ans. 

    The type of welding and electrode used depends on the specific application and materials being joined.

    • Common types of welding include arc welding, MIG welding, TIG welding, and spot welding.

    • The choice of welding method depends on factors such as the type of metal, thickness, and desired weld quality.

    • For example, arc welding often uses electrodes made of materials like carbon steel, stainless steel, or cast iron.

    • MIG wel...

  • Answered by AI
  • Q3. What is meant by E6010
  • Ans. 

    E6010 is a type of electrode used in welding that produces deep penetration and is commonly used for welding in the vertical and overhead positions.

    • E6010 is a classification of welding electrode according to the American Welding Society (AWS) system.

    • It is a cellulose-based electrode that provides excellent arc stability and deep penetration.

    • The 'E' in E6010 stands for electrode, while the '60' indicates the tensile str...

  • Answered by AI
  • Q4. How hydrotest is done. Explain in details with formula for air volume calculation.
  • Ans. 

    Hydrotest is a process of testing the strength and integrity of a pressure vessel or pipeline.

    • Hydrotest involves filling the vessel or pipeline with water and pressurizing it to a specified level.

    • The pressure is held for a specified duration to ensure there are no leaks or failures.

    • Air volume calculation is used to determine the amount of air needed to pressurize the vessel or pipeline.

    • The formula for air volume calcul...

  • Answered by AI
  • Q5. What is dead weight tester and what is its working principle.
  • Ans. 

    A dead weight tester is a device used to calibrate pressure gauges by applying known weights to a piston.

    • Consists of a piston-cylinder assembly and a set of calibrated weights

    • Weights are placed on the piston to generate a known pressure

    • Pressure generated is compared to the reading on the gauge being calibrated

    • Used for high-precision calibration of pressure gauges

    • Commonly used in industries such as oil and gas, aerospac

  • Answered by AI
  • Q6. What types of defects in welding and what is acceptance criteria of common defects ?
  • Ans. 

    Common welding defects include porosity, undercutting, and lack of fusion. Acceptance criteria vary based on the type of defect.

    • Porosity: voids or gas pockets in the weld. Acceptance criteria depend on the size and location of the porosity.

    • Undercutting: groove in the base metal near the weld. Acceptance criteria depend on the depth and length of the undercut.

    • Lack of fusion: incomplete bonding between the weld and base ...

  • Answered by AI
  • Q7. What is dwell time in DPT ?
  • Q8. What is WPS, PQR, WQT, EQT, etc?
  • Ans. 

    WPS is Welding Procedure Specification, PQR is Procedure Qualification Record, WQT is Welder Qualification Test, EQT is Equipment Qualification Test.

    • WPS is a document that outlines the welding process to be used for a specific job.

    • PQR is a record of the welding parameters used during a test weld.

    • WQT is a test that certifies a welder's ability to perform a specific type of welding.

    • EQT is a test that certifies the equipm

  • Answered by AI
  • Q9. What is difference between seam pipe and seamless pipe ? Which pipe are used in cgd and why ?
  • Ans. 

    Seam pipe has a welded seam while seamless pipe is made without any seam. CGD uses seamless pipes for better safety and efficiency.

    • Seam pipes have a welded seam while seamless pipes are made without any seam.

    • Seam pipes are cheaper than seamless pipes.

    • Seamless pipes are stronger and more reliable than seam pipes.

    • CGD (City Gas Distribution) uses seamless pipes for better safety and efficiency.

    • Seamless pipes are used in h...

  • Answered by AI
  • Q10. What is TCP and what purpose it serve ?
  • Ans. 

    TCP is a protocol that provides reliable, ordered, and error-checked delivery of data between applications.

    • TCP stands for Transmission Control Protocol.

    • It is a connection-oriented protocol that operates at the transport layer of the OSI model.

    • TCP provides reliable, ordered, and error-checked delivery of data between applications.

    • It establishes a connection between two hosts and ensures that data is transmitted correctl...

  • Answered by AI
  • Q11. What is normal psp level ?
  • Q12. Which is longest pipeline route in India and World ?
  • Ans. 

    The longest pipeline route in India is the 1,397 km long Mundra-Pathanamthitta pipeline. The longest pipeline in the world is the Druzhba pipeline.

    • The Mundra-Pathanamthitta pipeline is used to transport crude oil from Gujarat to Kerala.

    • The Druzhba pipeline is a network of pipelines that runs from Russia to several European countries.

    • The Druzhba pipeline is approximately 4,000 km long.

    • Other long pipelines in India inclu...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Very easy and basic cgd pipeline questions are asked.

Skills evaluated in this interview

Think Gas Ludhiana interview questions for designations

 Engineer

 (1)

 Senior Executive

 (3)

 Senior Assistant

 (1)

 Project Engineer

 (1)

 Site Engineer

 (1)

 Senior Marketing Executive

 (2)

 Tpi Inspection Engineer

 (1)

 Graduate Engineer Trainee (Get)

 (1)

Interview questions from similar companies

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

I applied via Naukri.com and was interviewed in Mar 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Explain All the laws of Thermodynamics
  • Ans. 

    The laws of thermodynamics are fundamental principles governing energy and heat transfer in physical systems.

    • First Law: Energy cannot be created or destroyed, only transferred or converted.

    • Second Law: Heat naturally flows from hot to cold objects, and entropy tends to increase over time.

    • Third Law: As temperature approaches absolute zero, entropy approaches a minimum value.

    • Examples: A car engine converting fuel into mot...

  • Answered by AI
  • Q2. One should have good Engineeringskills
Round 2 - HR 

(1 Question)

  • Q1. Salary Expectation
Interview experience
4
Good
Difficulty level
Hard
Process Duration
2-4 weeks
Result
Not Selected

I applied via Company Website and was interviewed in May 2024. There were 2 interview rounds.

Round 1 - Group Discussion 

Behavioral questions and resume delve

Round 2 - Case Study 

Pmi - product management information

Interview Preparation Tips

Interview preparation tips for other job seekers - study supply chain, product management information and presentation
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Relay protection
  • Q2. Transformers protection

I applied via Naukri.com and was interviewed in Oct 2020. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. The HR round was very pathetic. Sreethala took my HR round.

Interview Preparation Tips

Interview preparation tips for other job seekers - Please don't waste your precious time in giving the interview for Baker Hughes, Powai
Mumbai location. They will take all the interview rounds. The HR will ask you to submit all documents and last moment they will cancel your candidature without giving you any specific reason.

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

Interview Questionnaire 

28 Questions

  • Q1. What is mean by safety
  • Ans. 

    Safety refers to the condition of being protected from harm, danger, or injury.

    • Safety involves taking measures to prevent accidents and injuries

    • It includes following rules and regulations to ensure a safe environment

    • Safety can be achieved through proper training and education

    • Examples of safety measures include wearing protective gear, using safety equipment, and practicing safe behaviors

    • Safety is important in all indus...

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

    LEL stands for Lower Explosive Limit and is the minimum concentration of a gas or vapor in air that can ignite.

    • LEL is a safety term used in industries dealing with flammable gases and liquids.

    • It is expressed as a percentage of the gas or vapor in air.

    • If the concentration of the gas or vapor is below the LEL, it is too lean to ignite.

    • If the concentration is above the LEL, it is too rich and can ignite.

    • For example, the L...

  • Answered by AI
  • Q3. What is RA
  • Q4. What is JSA/JHA
  • Ans. 

    JSA/JHA stands for Job Safety Analysis/Job Hazard Analysis. It is a process of identifying potential hazards and risks in a job or task.

    • JSA/JHA is a systematic approach to identify and mitigate potential hazards in a job or task

    • It involves breaking down a job or task into steps and analyzing each step for potential hazards

    • The analysis includes identifying the hazards, assessing the risks, and implementing controls to m...

  • Answered by AI
  • Q5. Role of HSE
  • Ans. 

    HSE plays a crucial role in ensuring the safety and well-being of employees and the environment.

    • HSE stands for Health, Safety, and Environment.

    • It involves identifying and assessing potential hazards and implementing measures to control or eliminate them.

    • HSE also includes training employees on safety procedures and emergency response plans.

    • Examples of HSE measures include wearing personal protective equipment, conductin...

  • Answered by AI
  • Q6. What is Hchem
  • Ans. 

    Hchem is not a known term or acronym in the engineering field.

    • Hchem is not a commonly used term in engineering

    • It is possible that the interviewer misspoke or meant to ask a different question

    • Without more context, it is difficult to provide a more specific answer

  • Answered by AI
  • Q7. What is Hazop
  • Ans. 

    Hazop is a structured and systematic technique used to identify potential hazards and operability problems in industrial processes.

    • Hazop stands for Hazard and Operability Study

    • It involves a team of experts analyzing a process to identify potential hazards and operability issues

    • Hazop is commonly used in the chemical, oil and gas, and pharmaceutical industries

    • The process involves breaking down the process into smaller pa...

  • Answered by AI
  • Q8. What is confined space
  • Ans. 

    Confined space refers to an area that is enclosed and has limited access and ventilation.

    • Examples include tanks, silos, sewers, and tunnels.

    • Workers entering confined spaces must follow safety protocols and use specialized equipment.

    • Hazards in confined spaces include lack of oxygen, toxic gases, and physical obstructions.

    • Proper training and communication are crucial for working in confined spaces.

  • Answered by AI
  • Q9. What is work at height
  • Ans. 

    Work at height refers to any task performed at a height where a person could fall and injure themselves.

    • Work at height involves working on ladders, scaffolding, roofs, or any other elevated surface

    • It is important to use appropriate safety equipment such as harnesses, guardrails, and safety nets

    • Workers should be trained on how to safely work at height and how to properly use safety equipment

    • Examples of work at height in...

  • Answered by AI
  • Q10. Hazard of confined space
  • Ans. 

    Confined spaces pose a significant hazard due to limited entry and exit points, poor ventilation, and potential for hazardous substances.

    • Limited entry and exit points can make it difficult to escape in case of an emergency

    • Poor ventilation can lead to a buildup of toxic gases or lack of oxygen

    • Potential for hazardous substances such as chemicals, fumes, or dust

    • Examples include tanks, silos, sewers, and tunnels

    • Proper trai...

  • Answered by AI
  • Q11. Precautions of confined space
  • Ans. 

    Precautions to be taken while working in confined spaces

    • Proper ventilation and air quality testing

    • Use of personal protective equipment

    • Proper lighting and communication equipment

    • Training and certification for workers

    • Emergency rescue plan in place

  • Answered by AI
  • Q12. What is LEL&UEL
  • Ans. 

    LEL&UEL stands for Lower Explosive Limit and Upper Explosive Limit respectively. They are the minimum and maximum concentrations of a flammable gas or vapor in air that can ignite.

    • LEL is the lowest concentration of a gas or vapor that can ignite

    • UEL is the highest concentration of a gas or vapor that can ignite

    • Concentrations between LEL and UEL are considered flammable

    • LEL and UEL vary depending on the gas or vapor

    • LEL an...

  • Answered by AI
  • Q13. What is competent person
  • Q14. What is fire
  • Ans. 

    Fire is a chemical reaction that releases heat, light, and various gases.

    • Fire is a rapid oxidation process that occurs when fuel (such as wood, paper, or gasoline) combines with oxygen in the presence of heat or a spark.

    • It releases heat, light, and various gases such as carbon dioxide, water vapor, and nitrogen oxides.

    • Fire can be beneficial (such as for cooking or heating) or destructive (such as in wildfires or house ...

  • Answered by AI
  • Q15. Types of fire
  • Ans. 

    There are four types of fire: Class A, Class B, Class C, and Class D.

    • Class A fires involve ordinary combustibles such as wood, paper, or cloth.

    • Class B fires involve flammable liquids or gases such as gasoline, oil, or propane.

    • Class C fires involve electrical equipment such as appliances, wiring, or circuit breakers.

    • Class D fires involve combustible metals such as magnesium, titanium, or sodium.

  • Answered by AI
  • Q16. Type of extinguisher
  • Ans. 

    There are different types of fire extinguishers for different types of fires.

    • Water extinguishers for Class A fires (wood, paper, cloth, etc.)

    • CO2 extinguishers for Class B and C fires (flammable liquids and electrical fires)

    • Dry chemical extinguishers for Class A, B, and C fires

    • Foam extinguishers for Class A and B fires

    • Wet chemical extinguishers for Class K fires (cooking oils and fats)

  • Answered by AI
  • Q17. Modes of heat transfer
  • Ans. 

    Modes of heat transfer include conduction, convection, and radiation.

    • Conduction is the transfer of heat through a material without any movement of the material itself.

    • Convection is the transfer of heat through the movement of fluids, such as air or water.

    • Radiation is the transfer of heat through electromagnetic waves, such as from the sun or a fire.

  • Answered by AI
  • Q18. How to prevent fire
  • Ans. 

    Preventing fire requires proper handling of flammable materials and regular maintenance of electrical equipment.

    • Store flammable materials in designated areas away from heat sources

    • Regularly inspect and maintain electrical equipment

    • Install smoke detectors and fire extinguishers in appropriate locations

    • Train employees on fire safety procedures and evacuation plans

  • Answered by AI
  • Q19. What is msds
  • Ans. 

    MSDS stands for Material Safety Data Sheet.

    • MSDS provides information about hazardous chemicals and substances.

    • It includes information about the physical and chemical properties of the substance, health hazards, precautions for safe handling and use, and emergency procedures.

    • MSDS is required by law for all hazardous chemicals and substances used in the workplace.

    • It is important to read and understand the MSDS before usi...

  • Answered by AI
  • Q20. How to do firefighting
  • Ans. 

    Firefighting involves identifying and extinguishing fires to prevent damage and loss of life.

    • Assess the situation and determine the type and size of fire

    • Use appropriate firefighting equipment such as fire extinguishers, hoses, and pumps

    • Follow safety protocols and wear protective gear

    • Coordinate with other firefighters and emergency responders

    • Evacuate people from the affected area

    • Monitor the situation and ensure the fire

  • Answered by AI
  • Q21. How to prevent the accident
  • Ans. 

    Prevent accidents by identifying potential hazards and implementing safety measures.

    • Conduct regular safety audits and risk assessments

    • Provide proper training and education to employees

    • Implement safety protocols and procedures

    • Use appropriate safety equipment and gear

    • Encourage a culture of safety and accountability

    • Regularly review and update safety policies and procedures

  • Answered by AI
  • Q22. How to investigate the accident
  • Ans. 

    To investigate an accident, follow a systematic approach involving data collection, analysis, and identification of root causes.

    • Gather all available information about the accident, including eyewitness accounts, photographs, and any relevant documents or records.

    • Conduct interviews with individuals involved in the accident to gather their perspectives and insights.

    • Examine the accident scene for physical evidence, such a...

  • Answered by AI
  • Q23. Emergency procedure
  • Q24. What is H2s
  • Ans. 

    H2S is a colorless, flammable, and toxic gas with a strong odor of rotten eggs.

    • H2S is commonly known as hydrogen sulfide.

    • It is produced naturally by the breakdown of organic matter and is found in natural gas, crude oil, and volcanic gases.

    • It is highly toxic and can cause respiratory failure, loss of consciousness, and even death.

    • H2S is used in various industries such as oil and gas, mining, and pulp and paper.

    • It is al...

  • Answered by AI
  • Q25. Properties of H2s
  • Ans. 

    H2S is a colorless, flammable, and toxic gas with a strong odor of rotten eggs.

    • H2S is highly flammable and can ignite easily

    • It is toxic and can cause respiratory failure

    • It has a distinctive odor of rotten eggs

    • H2S is used in the production of sulfuric acid and in the petroleum industry

  • Answered by AI
  • Q26. Hirerchy procedure
  • Q27. Permissible exposure limit of H2s,co,co2,methane
  • Ans. 

    Permissible exposure limits (PEL) are the maximum allowable concentrations of hazardous substances in the workplace.

    • H2S: PEL is 10 ppm (parts per million) over an 8-hour workday

    • CO: PEL is 50 ppm over an 8-hour workday

    • CO2: No specific PEL, but recommended exposure limit is 5,000 ppm over an 8-hour workday

    • Methane: No specific PEL, but recommended exposure limit is 1,000 ppm over an 8-hour workday

  • Answered by AI
  • Q28. Short term exposure limit of H2s
  • Ans. 

    Short term exposure limit (STEL) of H2S is 10 ppm.

    • STEL is the maximum concentration of a substance that a worker can be exposed to for a short period of time without suffering from immediate or long-term health effects.

    • The STEL for H2S is set at 10 ppm (parts per million) by OSHA (Occupational Safety and Health Administration).

    • Exposure to H2S at levels above the STEL can cause symptoms such as eye irritation, headache,...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep calm when you are giving the interview and first prepare the interview

I applied via Recruitment Consultant and was interviewed in Dec 2020. There were 6 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. 1st round is technical , 2nd is values & behaviors , 3rd is assessment road
  • Q2. Be clear on values & behaviours , practice assement round offline before attempting

Interview Preparation Tips

Interview preparation tips for other job seekers - its a long process may take 2-3 months , there is internal & external assement before selectioon is finalized . Good luck

Think Gas Ludhiana Interview FAQs

How many rounds are there in Think Gas Ludhiana Senior Engineer interview?
Think Gas Ludhiana interview process usually has 2-3 rounds. The most common rounds in the Think Gas Ludhiana interview process are HR, Technical and Resume Shortlist.

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Think Gas Ludhiana Senior Engineer Interview Process

based on 2 interviews

3 Interview rounds

  • Resume Shortlist Round
  • Technical Round
  • HR Round
View more
Think Gas Ludhiana Senior Engineer Salary
based on 125 salaries
₹4.2 L/yr - ₹10 L/yr
28% less than the average Senior Engineer Salary in India
View more details

Think Gas Ludhiana Senior Engineer Reviews and Ratings

based on 37 reviews

4.0/5

Rating in categories

3.7

Skill development

3.9

Work-life balance

4.1

Salary

3.7

Job security

3.7

Company culture

3.8

Promotions

3.6

Work satisfaction

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