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NHPC Mechanic Interview Questions and Answers

Updated 4 Apr 2022

NHPC Mechanic Interview Experiences

1 interview found

Mechanic Interview Questions & Answers

user image Anonymous

posted on 2 Apr 2022

I applied via Company Website and was interviewed in Mar 2022. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. Tarvo ka kya kam he ingine me
  • Q2. Kya reasion he engine oil katam hone kaa jab oil ring ok he terbo ok he
  • Q3. Engine heat up kya reason he

Interview Preparation Tips

Interview preparation tips for other job seekers - I have no advice kahi nakri ho to bata dena

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Aug 2024. There were 4 interview rounds.

Round 1 - Aptitude Test 

Aptitude test its very nice test for job test class test

Round 2 - Aptitude Test 

Aptitude test its nice attitude test job test class test work test

Round 3 - Assignment 

Assignment test is the one topic and only one subject assignment test

Round 4 - Technical 

(3 Questions)

  • Q1. NTPC company have a water
  • Q2. Material coal chamber
  • Q3. Water cycle water supply

Interview Preparation Tips

Interview preparation tips for other job seekers - Job have a company ist traning experience and benefits for company
Interview experience
5
Excellent
Difficulty level
-
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed in Apr 2024. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Dozer loder jcb Hydra
  • Q2. Any questions Dozer
  • Q3. Hydrollic diagnose
  • Ans. 

    Hydraulic diagnosis involves identifying and fixing issues with hydraulic systems in diesel engines.

    • Check for leaks in the hydraulic system

    • Inspect hydraulic fluid levels and quality

    • Test hydraulic pressure and flow rates

    • Look for damaged or worn hydraulic components

    • Use diagnostic tools like pressure gauges and flow meters

    • Consult manufacturer's guidelines for troubleshooting

    • Consider potential causes such as air in the sys

  • Answered by AI
  • Q4. Pump repair and mentioned
  • Q5. General mentinenac
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website

Round 1 - Technical 

(5 Questions)

  • Q1. Rotary and static equipment
  • Q2. Pump and vessel experience
  • Ans. 

    I have experience working with pumps and vessels in various projects during my diploma in Mechanical Engineering.

    • I have hands-on experience in designing, installing, and maintaining pumps and vessels for different industrial applications.

    • I am familiar with different types of pumps such as centrifugal pumps, reciprocating pumps, and gear pumps.

    • I have worked on sizing and selecting pumps based on the flow rate, head, and...

  • Answered by AI
  • Q3. Rotary and static equipment pump gearbox
  • Q4. Exchanger and colme
  • Q5. Vesale experience
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in May 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Past Experience related Questions
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Sep 2023. There were 3 interview rounds.

Round 1 - Group Discussion 

Related questions about wec or machines

Round 2 - One-on-one 

(1 Question)

  • Q1. Why do you want the that work
Round 3 - Technical 

(1 Question)

  • Q1. What about you know that
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 Feb 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. Technical case study
  • Q2. Group discussion HR case study

Interview Preparation Tips

Topics to prepare for Tata Power Mechanical Engineer interview:
  • 1 month vocational training
Interview preparation tips for other job seekers - I am best perform of your company, I can easy to handlle any situation
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 

(4 Questions)

  • Q1. Trubalshuting of all hydraulic releted
  • Q2. Hand sketch drawing and measurement tools proper handling and cylinder orhauling and proper assembly
  • Q3. Hydraulic cylinder maintenance
  • Q4. Asking All questions to hydraulics releted

Interview Preparation Tips

Interview preparation tips for other job seekers - Hydraulic cylinder releted questions
Seal design releted questions
Quality related questions
Trubalshuting releted
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Walk-in and was interviewed before Nov 2022. There were 2 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 

(10 Questions)

  • Q1. Types of gearbox
  • Ans. 

    Types of gearboxes include spur, helical, bevel, worm, planetary, and cycloidal.

    • Spur gearbox: simple and efficient, used in low-speed applications

    • Helical gearbox: smoother operation, higher load capacity

    • Bevel gearbox: used for right angle drives

    • Worm gearbox: high reduction ratios, self-locking feature

    • Planetary gearbox: compact design, high torque transmission

    • Cycloidal gearbox: high shock load capacity, low backlash

  • Answered by AI
  • Q2. What is difference between tensioning and torqueing
  • Ans. 

    Tensioning involves stretching a fastener to a specific load, while torqueing involves tightening a fastener to a specific torque value.

    • Tensioning is typically used for critical applications where precise load control is required.

    • Torqueing is more commonly used in general applications where a specific torque value is sufficient.

    • Tensioning is often used in applications like bolted joints in bridges or aircraft structure...

  • Answered by AI
  • Q3. What is the main reason of gearbox failure
  • Ans. 

    The main reason for gearbox failure is lack of lubrication, leading to increased friction and wear.

    • Lack of proper lubrication causing increased friction

    • Contamination of lubricant with dirt or debris

    • Overloading the gearbox beyond its capacity

    • Improper maintenance and servicing

    • Manufacturing defects or poor quality materials

    • Incorrect alignment of gears

  • Answered by AI
  • Q4. Difference between two stroke and four stroke engine
  • Ans. 

    Two stroke engines have power strokes every revolution, while four stroke engines have power strokes every other revolution.

    • Two stroke engines have a simpler design with fewer moving parts compared to four stroke engines

    • Two stroke engines require a fuel-oil mixture for lubrication, while four stroke engines have a separate oil reservoir

    • Two stroke engines produce more pollution due to incomplete combustion, while four s...

  • Answered by AI
  • Q5. How WTG generate electricity
  • Ans. 

    Wind Turbine Generators (WTG) generate electricity through the conversion of wind energy into mechanical energy and then into electrical energy.

    • Wind turns the blades of the turbine

    • Blades are connected to a rotor

    • Rotor spins a generator to produce electricity

    • Electricity is then sent to a transformer for distribution

    • Example: Vestas V164-9.5 MW wind turbine

  • Answered by AI
  • Q6. Why we use fluid coupling
  • Ans. 

    Fluid couplings are used to transmit power from one shaft to another without direct physical contact, allowing for smooth start-ups and overload protection.

    • Fluid couplings help in gradual acceleration of heavy machinery, reducing stress on the equipment

    • They provide overload protection by slipping when the torque exceeds a certain limit

    • Fluid couplings dampen torsional vibrations, reducing wear and tear on the machinery

    • T...

  • Answered by AI
  • Q7. Why gear box use
  • Ans. 

    Gear boxes are used to transmit power from one component to another while changing the speed and torque of the output.

    • Gear boxes allow for speed and torque conversion between input and output shafts

    • They provide mechanical advantage by increasing or decreasing speed and torque

    • Used in various applications such as automobiles, industrial machinery, and power transmission systems

  • Answered by AI
  • Q8. Did you know about generator alignment
  • Ans. 

    Yes, generator alignment is crucial for efficient operation and preventing damage.

    • Generator alignment ensures that the rotating parts are properly positioned to prevent vibration and wear

    • Improper alignment can lead to increased maintenance costs and reduced efficiency

    • Alignment methods include laser alignment, dial indicators, and alignment jigs

    • Regular alignment checks should be performed to ensure optimal performance

    • Ex...

  • Answered by AI
  • Q9. Which gear is used in gearbox
  • Ans. 

    Various types of gears can be used in a gearbox depending on the application, such as spur gears, helical gears, bevel gears, and worm gears.

    • Spur gears are commonly used in applications where simplicity and cost-effectiveness are important.

    • Helical gears are used when smooth and quiet operation is required.

    • Bevel gears are used to transmit motion between intersecting shafts.

    • Worm gears are used for high reduction ratios a...

  • Answered by AI
  • Q10. Why aviation lamp is use in wtg
  • Ans. 

    Aviation lamps are used in wind turbine generators (WTG) for aircraft safety and navigation purposes.

    • Aviation lamps help to make the wind turbine visible to aircrafts, reducing the risk of collisions.

    • They also aid in navigation by marking the location of the wind turbine for pilots.

    • The use of aviation lamps is a regulatory requirement to ensure air traffic safety around wind turbines.

    • Different colors of aviation lamps ...

  • Answered by AI

I applied via campus placement at Indian Institute of Technology (IIT), Chennai

Interview Questionnaire 

2 Questions

  • Q1. Explain about your previous intern
  • Ans. 

    I interned at XYZ Company as a mechanical engineer.

    • Assisted in designing and testing new products

    • Collaborated with team members to improve manufacturing processes

    • Conducted research on materials and their properties

    • Created technical drawings and schematics using CAD software

  • Answered by AI
  • Q2. Explain your family background
  • Ans. 

    My family background is diverse and multicultural.

    • My parents are from different countries and cultures.

    • I grew up speaking multiple languages at home.

    • My family values education and hard work.

    • We have a strong sense of community and support for each other.

    • My grandparents were immigrants who worked hard to provide for their families.

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: I had a decent resume and a good grade and hence was confident on getting through this phase.
Tips: Devote sufficient time for resume preparation and come up with a catchy resume that will ensure that you are shortlisted.

Round: Technical Interview
Experience: I had good knowledge of what I had done in my previous intern and elaborated the experience. I tried not to exaggerate and gave crisp answers only.
Tips: Be confident in what you utter.

Round: HR Interview
Experience: Based on previous candidates. I knew that the interview was long and took the freedom to presume it will be same for me and gave an elaborate answer.

General Tips: Be confident of your own profile and try to sell yourself as a product to them. Show your worth rather than your weaknesses in the front.
Skills: Course Grades, Enthusiasm
Duration: 2
College Name: IIT Madras
Motivation: I wanted to do a core intern and such a reputed company with versatile domains was a preferred choice.

NHPC Interview FAQs

How many rounds are there in NHPC Mechanic interview?
NHPC interview process usually has 1 rounds. The most common rounds in the NHPC interview process are Technical.
What are the top questions asked in NHPC Mechanic interview?

Some of the top questions asked at the NHPC Mechanic interview -

  1. Kya reasion he engine oil katam hone kaa jab oil ring ok he terbo ok...read more
  2. Tarvo ka kya kam he ingine...read more
  3. Engine heat up kya reason...read more

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