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NTPC Interview Questions, Process, and Tips

Updated 6 Mar 2025

Top NTPC Interview Questions and Answers

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NTPC Interview Experiences

Popular Designations

158 interviews found

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-

I applied via Newspaper Ad

Round 1 - Technical 

(2 Questions)

  • Q1. Why we can't more efficiency in Boiler
  • Ans. 

    Efficiency in boilers is limited due to various factors.

    • Incomplete combustion of fuel leads to energy loss

    • Heat loss through flue gases and radiation

    • Inefficient heat transfer due to scaling or fouling

    • Improper insulation leading to heat loss

    • Inadequate maintenance and tuning

    • Lack of advanced control systems

    • Design limitations and constraints

    • Fuel quality and composition

    • Operating conditions and load variations

  • Answered by AI
  • Q2. Why Turbine,s efficiency is less & so derive the efficiency equation
  • Ans. 

    The efficiency of a turbine is less due to various factors such as friction, heat losses, and mechanical losses.

    • Friction between the moving parts of the turbine reduces its efficiency.

    • Heat losses occur due to the conversion of thermal energy into mechanical energy.

    • Mechanical losses include losses in bearings, seals, and other components.

    • Efficiency equation: Efficiency = (Useful output energy / Input energy) * 100%

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Go through text book of steam turbines properly & come with positive also go through Boiler books & different types of Boilers & its Design.

Maintenance Engineer Interview Questions asked at other Companies

Q1. 1)which refrigeration cycle used in chilling plant?
View answer (9)
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 - Technical 

(1 Question)

  • Q1. What are your observations during taking round of your area.
Round 3 - One-on-one 

(1 Question)

  • Q1. What are the factors which affect Power plant efficiency.
  • Ans. 

    Factors affecting power plant efficiency include type of fuel, technology used, maintenance, and operating conditions.

    • Type of fuel used (coal, natural gas, nuclear, etc.)

    • Technology used in the power plant (combined cycle, cogeneration, etc.)

    • Maintenance practices (regular maintenance vs. neglect)

    • Operating conditions (temperature, pressure, load demand)

    • Efficiency of heat transfer processes

    • Size and age of the power plant

    • E...

  • Answered by AI

Field Engineer Interview Questions asked at other Companies

Q1. What is insulator and conductors and semiconductors
View answer (6)
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Campus Placement and was interviewed in Aug 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 - Aptitude Test 

Non technical ( reasoning,math,gk,gs)

Round 3 - Technical 

(1 Question)

  • Q1. Mechanical engineering

Apprentice Trainee Interview Questions asked at other Companies

Q1. # Modes of heat transfer and how do they work? #Thermodynamics #performance curve of pump #priming (pump)
View answer (3)

Supervisor Interview Questions & Answers

user image Anonymous

posted on 18 Jan 2023

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 Dec 2022. 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 - One-on-one 

(5 Questions)

  • Q1. How to handle all employees
  • Ans. 

    To handle all employees effectively, a supervisor should prioritize communication, set clear expectations, provide support and feedback, and promote a positive work environment.

    • Maintain open and regular communication with employees

    • Set clear expectations and goals for each employee

    • Provide necessary support, resources, and training

    • Offer constructive feedback and recognition for good performance

    • Address any issues or confl...

  • Answered by AI
  • Q2. All rights reserved privacy terms of use and outbound calls
  • Ans. 

    These are legal terms and policies related to privacy and communication.

    • All rights reserved refers to the ownership of intellectual property

    • Privacy terms outline how personal information is collected, used, and protected

    • Terms of use specify the rules and regulations for using a product or service

    • Outbound calls refer to calls made by a company to customers or clients

  • Answered by AI
  • Q3. What is your performance to apply this company
  • Q4. Can u take this opportunity further to our attention
  • Q5. All the best regards to join us

Interview Preparation Tips

Interview preparation tips for other job seekers - All employees all the to best regards to join this company

Supervisor Interview Questions asked at other Companies

Q1. Self introduction? & what is mean by eCommerce ? How it can do
View answer (10)

NTPC interview questions for popular designations

 Executive Trainee

 (4)

 Supervisor

 (3)

 Engineer

 (2)

 Safety Officer

 (2)

 Electrical Engineer

 (2)

 Intern

 (2)

 Operations Executive

 (2)

 Trainee

 (2)

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

(1 Question)

  • Q1. Cube strength of 7 days
  • Ans. 

    Cube strength of 7 days is the compressive strength of concrete cubes after 7 days of curing.

    • Cube strength is an important measure of the quality and durability of concrete.

    • It is determined by conducting compression tests on concrete cubes after a specified curing period.

    • The cube strength at 7 days is an early indication of the ultimate strength of the concrete.

    • It is typically expressed in megapascals (MPa) or pounds p

  • Answered by AI

Civil Site Engineer Interview Questions asked at other Companies

Q1. What is the minimum Grade of Concrete used in R.C.C. works?
View answer (65)

Get interview-ready with Top NTPC Interview Questions

Supervisor Interview Questions & Answers

user image Anonymous

posted on 1 Dec 2023

Interview experience
2
Poor
Difficulty level
Easy
Process Duration
-
Result
Selected Selected

I was interviewed in Jun 2023.

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 - One-on-one 

(2 Questions)

  • Q1. All type of information relatade Wagon tippler
  • Q2. Sac handling hydraulic power pack handling conveyar handling leabur handling All type of information reletad wagon tippler.

Supervisor Interview Questions asked at other Companies

Q1. Self introduction? & what is mean by eCommerce ? How it can do
View answer (10)
Interview experience
4
Good
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 - Technical 

(3 Questions)

  • Q1. Some asked technical questions
  • Q2. About transformer related questions
  • Q3. Like transformer work

Interview Preparation Tips

Interview preparation tips for other job seekers - Focus on "the process" not the results and follow owns ambition

Electrical Testing Engineer Interview Questions asked at other Companies

Q1. 1. tell about different types of instrument transfomer. 2. Draw the star connection in transformer.
View answer (2)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in 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 

(2 Questions)

  • Q1. What is barring gear in turbine?
  • Ans. 

    Barring gear is a mechanism used in turbines to rotate the rotor during maintenance or inspection.

    • Barring gear is typically used in steam turbines and gas turbines.

    • It consists of a gear system that connects to the rotor shaft.

    • The gear system allows for controlled rotation of the rotor.

    • Barring gear is used when the turbine is shut down and the rotor needs to be turned manually.

    • It is commonly used for maintenance tasks s...

  • Answered by AI
  • Q2. Why is vacuum needed in turbine?
  • Ans. 

    Vacuum is needed in turbines to create a pressure difference that drives the turbine blades and generates power.

    • Vacuum creates a pressure difference that drives the turbine blades.

    • The pressure difference causes the blades to rotate, converting kinetic energy into mechanical energy.

    • The mechanical energy is then used to generate power.

    • Vacuum is necessary for efficient turbine operation and power generation.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Just apply. You may not be the best candidate or have all the requisite qualifications, but you’ll never get a job if you don’t try.”

Turbine Operator Interview Questions asked at other Companies

Q1. Why is vacuum needed in turbine?
View answer (2)
Interview experience
4
Good
Difficulty level
-
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Jul 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 - Coding Test 

Any questions ask my job related

Round 3 - Technical 

(1 Question)

  • Q1. My job related ask any questions

Electrical Maintenance Technician Interview Questions asked at other Companies

Q1. What is transformer? How many types of transformer, nd works, construction
View answer (1)
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Oct 2022. There were 4 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 - Aptitude Test 

The aptitude was quite interesting and it forces how you can think different to solve a simple prblm in different ways .

Round 3 - Technical 

(3 Questions)

  • Q1. What's is pneumatic valve .
  • Ans. 

    A pneumatic valve is a type of valve that uses compressed air to control the flow of fluids or gases.

    • Pneumatic valves are commonly used in industries such as manufacturing, automation, and transportation.

    • They are often used to control the flow of air, water, oil, or other fluids in a system.

    • Pneumatic valves can be operated manually, electrically, or through the use of solenoids.

    • They are typically made of materials such...

  • Answered by AI
  • Q2. What's is bourdon tube ,where it is used and why it is used?
  • Q3. Search it on Google for better result
Round 4 - Case Study 

The case study was on how to operate in a emergency situation if the boiler drum pressure is getting high without any limit

Interview Preparation Tips

Interview preparation tips for other job seekers - The work environment was excellent, the staff behaviour was very impressive, they show respect to youngster who are ready to make India a bright by generating more and more power

Junior Engineer Interview Questions asked at other Companies

Q1. What is the main role of Junior engineer in Electrical maintenance and How to provide the company facilities ?
View answer (25)

NTPC Interview FAQs

How many rounds are there in NTPC interview?
NTPC interview process usually has 1-2 rounds. The most common rounds in the NTPC interview process are Technical, Resume Shortlist and Aptitude Test.
What are the top questions asked in NTPC interview?

Some of the top questions asked at the NTPC interview -

  1. Which is the extensively used motor in general?(in general it is I...read more
  2. If you are asked to construct a dam in Mizoram, what will be the problems you a...read more
  3. What is the step up and step down transform...read more
How long is the NTPC interview process?

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

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NTPC Interview Process

based on 122 interviews

Interview experience

4.3
  
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NTPC Reviews and Ratings

based on 1.5k reviews

4.2/5

Rating in categories

4.1

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4.0

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4.0

Salary

4.0

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4.0

Company culture

3.5

Promotions

4.0

Work satisfaction

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