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Thermax Limited Interview Questions and Answers

Updated 27 Jun 2025
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242 Interview questions

An Instrument Engineer was asked 1mo ago
Q. What is a control valve?
Ans. 

A control valve regulates fluid flow by varying the size of the flow passage as directed by a controller.

  • Used in various industries like oil & gas, water treatment, and HVAC systems.

  • Types include globe valves, ball valves, and butterfly valves.

  • Control valves can be automated or manually operated.

  • They help maintain desired pressure, temperature, and flow rate.

  • Example: A globe valve used in a steam system to con...

View all Instrument Engineer interview questions
An Instrument Engineer was asked 1mo ago
Q. What is a glycerine gauge?
Ans. 

A glycerine gauge is a type of pressure gauge filled with glycerine to dampen vibrations and protect the mechanism.

  • Glycerine is a viscous liquid that helps to reduce the effects of pressure fluctuations.

  • Commonly used in industrial applications where pressure readings are critical.

  • Examples include oil and gas, chemical processing, and water treatment industries.

  • Glycerine-filled gauges are less prone to damage from ...

View all Instrument Engineer interview questions
An Instrument Engineer was asked 1mo ago
Q. What is ESP?
Ans. 

ESP (Electronic Stability Program) enhances vehicle safety by improving traction and stability during driving.

  • ESP helps prevent skidding and loss of control in slippery conditions.

  • It uses sensors to monitor vehicle dynamics and applies brakes to individual wheels.

  • For example, if a car starts to skid while turning, ESP can brake the outer wheels to stabilize the vehicle.

  • ESP is often integrated with other systems li...

View all Instrument Engineer interview questions
A Boiler DCS Engineer was asked 2mo ago
Q. Describe the interlocks relevant to your field of work.
Ans. 

Interlocks in Boiler DCS ensure safe operation by preventing unsafe conditions and protecting equipment from damage.

  • Low water level interlock: Shuts down the boiler if water level drops below a safe threshold.

  • High pressure interlock: Prevents operation if pressure exceeds safe limits to avoid explosions.

  • Flame failure interlock: Automatically stops fuel supply if flame is not detected, preventing unburned fuel rele...

View all Boiler DCS Engineer interview questions
A Senior Service Engineer was asked 2mo ago
Q. What are the different types of ESP (Electric Submersible Pump) bearings?
Ans. 

ESP bearings support the pump shaft and ensure smooth operation under various conditions.

  • 1. Radial Bearings: Support radial loads and maintain shaft alignment. Example: Thrust bearings in multi-stage ESPs.

  • 2. Thrust Bearings: Handle axial loads and prevent shaft movement. Example: Used in high-pressure applications.

  • 3. Journal Bearings: Provide support and reduce friction between rotating and stationary parts. Examp...

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A Senior Service Engineer was asked 2mo ago
Q. What is the erection process in the context of engineering and construction?
Ans. 

The erection process involves assembling and installing structural components in construction projects.

  • Involves lifting and positioning heavy materials, such as steel beams.

  • Utilizes cranes and other machinery for safe and efficient assembly.

  • Includes safety protocols to protect workers during the process.

  • Example: Erecting a steel frame for a high-rise building.

  • Requires coordination among various teams, including en...

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A Senior Service Engineer was asked 2mo ago
Q. What are the operational issues associated with electrostatic precipitators?
Ans. 

Electrostatic precipitators face issues like maintenance, efficiency drops, and power consumption affecting operational performance.

  • Maintenance challenges: Regular cleaning of collector plates is necessary to maintain efficiency.

  • Efficiency drops: High dust loading can lead to reduced collection efficiency, requiring operational adjustments.

  • Power consumption: Increased energy use during high particulate loads can l...

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Are these interview questions helpful?
An Engineer Project Management was asked 3mo ago
Q. What is project management?
Ans. 

Project management is the discipline of planning, executing, and closing projects to achieve specific goals within constraints.

  • Involves defining project scope, objectives, and deliverables.

  • Utilizes tools like Gantt charts for scheduling tasks.

  • Involves risk management to identify and mitigate potential issues.

  • Requires effective communication among stakeholders to ensure alignment.

  • Example: Managing a construction pr...

View all Engineer Project Management interview questions
An Engineer Project Management was asked 3mo ago
Q. What details are important in project management?
Ans. 

Project management involves planning, executing, and closing projects efficiently and effectively.

  • Scope Management: Define project goals and deliverables. Example: Creating a project charter.

  • Time Management: Develop a timeline for project tasks. Example: Gantt charts for scheduling.

  • Cost Management: Estimate and control project budgets. Example: Using cost variance analysis.

  • Quality Management: Ensure project meets ...

View all Engineer Project Management interview questions
A Fire & Safety Officer was asked 3mo ago
Q. What is a permit?
Ans. 

A permit is an official document granting permission to perform specific activities, ensuring safety and compliance with regulations.

  • Permits are essential for activities like hot work, confined space entry, and hazardous material handling.

  • For example, a hot work permit is required before welding or cutting operations to prevent fire hazards.

  • Confined space permits ensure safety measures are in place before entering...

View all Fire & Safety Officer interview questions

Thermax Limited Interview Experiences

282 interviews found

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

I applied via Campus Placement and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

The hardest round I have experienced during interviews was ultimately successful, as I was selected. Only a few questions were multiple-choice; the rest required one-word or numerical answers to be written manually. Pay special attention to the last portion, as it was a scoring section containing standard technical questions. However, as we begin the assessment, the majority of the time is consumed by reasoning, arithmetic, and similar topics. In summary, I can say that the initial part is the toughest.

Round 2 - Technical 

(2 Questions)

  • Q1. The interview consisted of questions related to thermodynamics, including the Rankine cycle, the laws of thermodynamics, and knowledge about boilers and boiler safety. Additionally, most questions focused ...
  • Q2. Whilcox and babcoc boiler
Round 3 - HR 

(2 Questions)

  • Q1. Asking about women empowerment
  • Q2. Friendly interview , if you crack technical then you will be 90% chances of selecting. Don't lag in english communication. You will be rejected if you don't have clear communication

Interview Preparation Tips

Interview preparation tips for other job seekers - Effective communication is essential, along with a fundamental understanding of thermodynamics and the products manufactured at Thermax MNC. It is important to have detailed knowledge of all your projects, so do not miss the opportunity to begin your career at one of the best MNCs in the power plant and renewable energy sector.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Have a job for me
  • Q2. Have job for me in this year
Round 2 - Technical 

(2 Questions)

  • Q1. What kind of for me
  • Q2. Where is your head office
  • Ans. 

    Our head office is located in downtown New York City.

    • Head office is in downtown New York City

    • Easily accessible by public transportation

    • Close to major landmarks and attractions

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview in Feb 2025.

Round 1 - HR 

(2 Questions)

  • Q1. What is your aim in working place.
  • Ans. 

    My aim in the workplace is to continuously improve my skills, contribute to the success of the projects, and create a positive work environment.

    • Continuous improvement of skills through learning and training programs

    • Contribution to the success of projects by meeting deadlines and delivering high-quality work

    • Creating a positive work environment by fostering teamwork and open communication

  • Answered by AI
  • Q2. Work cost control .
Round 2 - Technical 

(2 Questions)

  • Q1. Work planing day by day
  • Q2. Reported at higher levels
  • Ans. 

    When issues are escalated to higher levels, it is important to provide clear and concise updates to ensure transparency and accountability.

    • Ensure all relevant information is included in the report

    • Communicate any potential impact on project timeline or budget

    • Provide recommendations for resolution or mitigation

    • Follow up with stakeholders to ensure the issue is being addressed

    • Document all communication and actions taken f...

  • Answered by AI
Interview experience
1
Bad
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via AmbitionBox and was interviewed in Oct 2024. There were 3 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Different between Ndt and non ndt
  • Ans. 

    NDT (Non-Destructive Testing) involves testing materials without causing damage, while non-NDT methods may involve destructive testing.

    • NDT methods include ultrasonic testing, radiography, magnetic particle testing, and dye penetrant testing.

    • Non-NDT methods may include cutting, drilling, or breaking materials to test their properties.

    • NDT is commonly used in industries like aerospace, automotive, and construction to ensu...

  • Answered by AI
  • Q2. Which electrode is use welding purpose for corbon steel to alloy steel
  • Ans. 

    For welding carbon steel to alloy steel, the electrode commonly used is E7018.

    • E7018 electrode is commonly used for welding carbon steel to alloy steel

    • It is a low-hydrogen electrode that provides strong welds with good impact resistance

    • The electrode operates on DC current and is suitable for both vertical and overhead welding positions

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. Ecinomiser coil material specification
  • Ans. 

    Economizer coil material specification is typically stainless steel or aluminum.

    • Economizer coils are commonly made of stainless steel or aluminum for corrosion resistance and durability.

    • The material specification for economizer coils may vary depending on the specific application and operating conditions.

    • Stainless steel economizer coils are preferred for high temperature and corrosive environments, while aluminum coils...

  • Answered by AI
  • Q2. Superheated coil material specification
  • Ans. 

    Superheated coil material specification is typically stainless steel due to its high temperature resistance and durability.

    • Stainless steel is commonly used for superheated coil material due to its high temperature resistance

    • Other materials like nickel alloys may also be used for specific applications

    • Material specifications should meet the required temperature and pressure ratings for the superheated coil

  • Answered by AI
Round 3 - HR 

(2 Questions)

  • Q1. Different between accounts and accountability
  • Ans. 

    Accounts are financial records, while accountability is the responsibility to justify actions and decisions.

    • Accounts refer to financial records of transactions, while accountability refers to the obligation to explain and justify actions.

    • Accounts are used to track financial activities and performance, while accountability ensures transparency and integrity in decision-making.

    • Examples: Keeping accurate accounts of proje...

  • Answered by AI
  • Q2. How to check materials
  • Ans. 

    Materials can be checked by conducting visual inspections, performing tests, and verifying documentation.

    • Conduct visual inspections to check for any defects or damages

    • Perform tests such as strength tests, hardness tests, and chemical tests

    • Verify documentation such as certificates of conformity and material test reports

    • Ensure materials meet specifications and standards set by the project

  • Answered by AI

Interview Preparation Tips

Topics to prepare for Thermax Limited Senior Site Engineer interview:
  • thermal power project
Interview preparation tips for other job seekers - Knowledge is very important for engineering
Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
Less than 2 weeks
Result
Selected Selected

I appeared for an interview before Apr 2021.

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. Boiler lightup, emergency activity, achivement,full job profile,introduction
  • Q2. Lightup processer Troubleshooting Emergency condition

Interview Preparation Tips

Interview preparation tips for other job seekers - A positive future-oriented culture and competitive salary.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I appeared for an interview in Jan 2025.

Round 1 - HR 

(1 Question)

  • Q1. What does the interview process entail?
Round 2 - Technical 

(2 Questions)

  • Q1. What is the next stage in the interview process?
  • Q2. What is the name of the company?
  • Ans. 

    The company's name is XYZ Engineering Solutions, a leading provider of industrial automation solutions.

    • XYZ Engineering Solutions specializes in providing DCS solutions for boilers in industrial settings.

    • The company has a team of experienced engineers who design and implement control systems for boiler operations.

    • XYZ Engineering Solutions has a track record of successful projects in the field of industrial automation.

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

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

Round 1 - Aptitude Test 

Aptitude round was moderate level and there are 9 sections.

Round 2 - Technical 

(2 Questions)

  • Q1. Introduction and then basic thermodynamics and project details.
  • Q2. Project explain and the internship based questions

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare your basics related to your field and then prepare about the project and internship.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(5 Questions)

  • Q1. Face to face technical
  • Q2. Knowledge of All types pressure vessel and Heat exchanger
  • Q3. Drawing understanding
  • Q4. Problem solving
  • Q5. Manpower handling

Shift Incharge Interview Questions & Answers

user image Kunal Chhatthuprasad Chauhan

posted on 10 Feb 2025

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

I appeared for an interview in Aug 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Boiler Related questions such as efficiency, Maintenance schedule, Chemicals used in boiler water and O&M
  • Q2. Compressor Maintenance and operation related. Parameters readings.
Round 2 - One-on-one 

(2 Questions)

  • Q1. Technical,Manpower Handling and safety rules.
  • Q2. Shift Scheduling, Report Making and sending to higher authorities.

Interview Preparation Tips

Interview preparation tips for other job seekers - Technical knowledge is must but lost probable what you have mentioned in your resume, you must know them very well.
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Campus Placement

Round 1 - Aptitude Test 

It was very difficult level for interview process in which there was 9 sections and each section had 15-20 questions.

Round 2 - Group Discussion 

It was elimination round.

Round 3 - Technical 

(1 Question)

  • Q1. Basic knowledge about engineering field

Top trending discussions

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Interview Tips & Stories
2w
toobluntforu
·
works at
Cvent
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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Thermax Limited Interview FAQs

How many rounds are there in Thermax Limited interview?
Thermax Limited interview process usually has 2-3 rounds. The most common rounds in the Thermax Limited interview process are Technical, Resume Shortlist and HR.
How to prepare for Thermax Limited interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Thermax Limited. The most common topics and skills that interviewers at Thermax Limited expect are Boiler, Power Plant, AutoCAD, WTP and Boiler Operations.
What are the top questions asked in Thermax Limited interview?

Some of the top questions asked at the Thermax Limited interview -

  1. If you don't have any safety equipment and documents how to complete the wor...read more
  2. What you check before starting the work at height activi...read more
  3. What is safety equipment you are carry on the du...read more
What are the most common questions asked in Thermax Limited HR round?

The most common HR questions asked in Thermax Limited interview are -

  1. What are your salary expectatio...read more
  2. Where do you see yourself in 5 yea...read more
  3. Why are you looking for a chan...read more
How long is the Thermax Limited interview process?

The duration of Thermax Limited interview process can vary, but typically it takes about less than 2 weeks to complete.

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Overall Interview Experience Rating

4.3/5

based on 327 interview experiences

Difficulty level

Easy 20%
Moderate 66%
Hard 14%

Duration

Less than 2 weeks 74%
2-4 weeks 14%
4-6 weeks 7%
6-8 weeks 1%
More than 8 weeks 5%
View more

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Thermax Limited Reviews and Ratings

based on 3.6k reviews

4.2/5

Rating in categories

4.0

Skill development

3.9

Work-life balance

3.8

Salary

4.3

Job security

4.1

Company culture

3.5

Promotions

3.9

Work satisfaction

Explore 3.6k Reviews and Ratings
Site Manager

Hyderabad / Secunderabad

5-10 Yrs

₹ 1-6 LPA

Site Manager

Visakhapatnam

10-14 Yrs

₹ 1-6 LPA

Site In charge

Anantapur,

Kurnool

+1

5-10 Yrs

₹ 3-4 LPA

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