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Tata Motors Diploma Mechanical Engineer Interview Questions, Process, and Tips

Updated 5 Mar 2025

Top Tata Motors Diploma Mechanical Engineer Interview Questions and Answers

View all 6 questions

Tata Motors Diploma Mechanical Engineer Interview Experiences

8 interviews found

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

I was interviewed in Jan 2025.

Round 1 - Aptitude Test 

My name is rajat sahu
My tata motors interview host in government polytechnic lucknow

Round 2 - Aptitude Test 

My interview host in government polytechnic lucknow

Round 3 - Coding Test 

My tata motors interview host in government polytechnic lucknow

Round 4 - HR 

(3 Questions)

  • Q1. What is four stock engine
  • Ans. 

    A four-stroke engine is an internal combustion engine in which the piston completes four separate strokes while turning the crankshaft.

    • Intake stroke: The piston moves downward, drawing in a mixture of air and fuel.

    • Compression stroke: The piston moves upward, compressing the air-fuel mixture.

    • Power stroke: The spark plug ignites the mixture, causing an explosion that drives the piston downward.

    • Exhaust stroke: The piston ...

  • Answered by AI
  • Q2. What is si engine
  • Ans. 

    SI engine stands for Spark Ignition engine, which is a type of internal combustion engine.

    • SI engine uses a spark plug to ignite the air-fuel mixture in the combustion chamber

    • Commonly used in gasoline/petrol vehicles

    • Produces power through the combustion of fuel and air mixture

  • Answered by AI
  • Q3. What is ci engine
  • Ans. 

    CI engine stands for Compression Ignition engine, which is a type of internal combustion engine where fuel is ignited by the heat of compression.

    • CI engine does not require a spark plug for ignition, as the fuel-air mixture is compressed until it reaches a high enough temperature to ignite spontaneously.

    • Common examples of CI engines include diesel engines used in trucks, buses, and heavy machinery.

    • CI engines are known f...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - No advice for your job seekers. You are very minded.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Aug 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Technical questions mechanical

Round 2 - HR 

(1 Question)

  • Q1. Company inproved
Round 3 - Technical 

(3 Questions)

  • Q1. Mechanical engineering questions
  • Q2. What is compressing
  • Ans. 

    Compressing is the process of reducing the volume of a substance by applying pressure.

    • Compressing involves applying force to decrease the space between particles of a substance.

    • Common examples include compressing air in a compressor or compressing data files to reduce their size.

    • Compression is used in various industries such as manufacturing, engineering, and technology.

  • Answered by AI
  • Q3. What is evaporator
  • Ans. 

    An evaporator is a device used to turn liquid into vapor by heating or reducing pressure.

    • Evaporators are commonly used in refrigeration systems to remove heat from a substance.

    • They are also used in desalination plants to separate salt from water.

    • Evaporators can be found in industries like food processing, chemical processing, and power generation.

    • Types of evaporators include falling film, rising film, forced circulatio...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - intresting

Skills evaluated in this interview

Diploma Mechanical Engineer Interview Questions Asked at Other Companies

asked in Tata Group
Q1. What is the second law of thermodynamics?
Q2. What is the pumps and classification of pump?
Q3. Can you explain the basic principles of thermodynamics? How do yo ... read more
Q4. .Which part protects the penstock due to sudden variation of flow ... read more
asked in Cummins
Q5. What's materials of cylinder head ?
Interview experience
5
Excellent
Difficulty level
-
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed before Mar 2024.

Round 1 - Technical 

(1 Question)

  • Q1. Types of tolerance Tolerance
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 Nov 2024. There were 3 interview rounds.

Round 1 - Aptitude Test 

Reasoning question/ technical question/ general knowledge question

Round 2 - Aptitude Test 

Technical question/ reasoning question

Round 3 - Coding Test 

Technical. Quality

Interview Preparation Tips

Interview preparation tips for other job seekers - Good job work and technical question answer

Tata Motors interview questions for designations

 Diploma Electrical Engineer

 (2)

 Diploma Electronics Engineer

 (1)

 Diploma Trainee Engineer

 (9)

 Mechanical Engineer

 (21)

 Diploma Trainee

 (1)

 Mechanical Maintenance Engineer

 (2)

 Junior Mechanical Engineer

 (1)

 Diploma Apprentice Trainee

 (3)

I applied via Referral and was interviewed in Sep 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 Resume tips
Round 2 - Technical 

(3 Questions)

  • Q1. The definition of technical is something having to do with an industrial or mechanical art or an applied science.
  • Q2. Technical definition is a definition in technical communication describing or explaining technical terminology
  • Q3. Contains text and code that allows someone familiar with the data system to extract the data that corresponds to the functional definition.

Interview Preparation Tips

Interview preparation tips for other job seekers - Diploma machincal eng for skills infection and quality control rool

Get interview-ready with Top Tata Motors Interview Questions

I applied via Referral and was interviewed in Jan 2022. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Total quality management
  • Q2. 5S system implement
  • Ans. 

    5S system is a workplace organization method that improves efficiency and safety.

    • Sort: Remove unnecessary items from the workplace

    • Set in order: Organize the remaining items in a logical manner

    • Shine: Clean and maintain the workplace

    • Standardize: Establish procedures and standards for maintaining the workplace

    • Sustain: Continuously improve and maintain the 5S system

    • Example: Labeling tools and equipment, creating a shadow b

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Mechanical branch related all questions.
Most important topic management, metrology and quality control, automobile engineering etc

I applied via Company Website and was interviewed in May 2022. There were 2 interview rounds.

Round 1 - Case Study 
Round 2 - Aptitude Test 

Interview Preparation Tips

Topics to prepare for Tata Motors Diploma Mechanical Engineer interview:
  • Automobile Engineering
Interview preparation tips for other job seekers - I am good engineer
I am a fast amosnal

I applied via Campus Placement and was interviewed in Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Describe your self?
  • Q2. Which work would you like to do?

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep clams.

Interview questions from similar companies

Interview Questionnaire 

4 Questions

  • Q1. How does a diesel genrator work?
  • Ans. 

    A diesel generator works by converting diesel fuel into mechanical energy which is then converted into electrical energy.

    • Diesel fuel is injected into the combustion chamber where it ignites and creates high pressure gases that push the piston down, creating mechanical energy.

    • The mechanical energy is then converted into electrical energy through the use of an alternator.

    • The alternator uses a magnetic field and a conduct...

  • Answered by AI
  • Q2. How a diesel engine works
  • Ans. 

    A diesel engine works by compressing air in the cylinder, which heats up and ignites the fuel injected into the cylinder.

    • Air is drawn into the cylinder and compressed by the piston

    • The compressed air heats up and ignites the fuel injected into the cylinder

    • The explosion pushes the piston down, which turns the crankshaft and powers the engine

    • Diesel engines are more efficient than gasoline engines because they compress the...

  • Answered by AI
  • Q3. Why there is no differential in a train
  • Ans. 

    A train doesn't need a differential because its wheels are fixed to the same axle and rotate at the same speed.

    • Train wheels are fixed to the same axle

    • Wheels rotate at the same speed

    • Differential is used in vehicles with wheels that rotate at different speeds

    • Differential allows for smooth turning

  • Answered by AI
  • Q4. Why petrol engines comparison ratio low when compared to a diesel engine
  • Ans. 

    Petrol engines have lower compression ratios compared to diesel engines.

    • Petrol engines have lower compression ratios to prevent knocking or detonation.

    • Diesel engines have higher compression ratios to ignite the fuel without spark plugs.

    • Higher compression ratios in diesel engines result in better fuel efficiency and torque.

    • Petrol engines require lower compression ratios to accommodate the lower octane rating of petrol f...

  • Answered by AI

Interview Preparation Tips

Round: Resume Shortlist
Experience: Resume was selected and I was invited for an interview
Tips: Resume was selected and I was invited for an interview

Round: Technical + HR Interview
Experience: Sir question was thought and I was giving a quick answer
Tips: Do not give any answer without tension

Skills: Personality, Skills Of Explaining Things, Knowledge About Industries, Knowledge In Ic Engines, Talking Ability

I was interviewed before Jul 2016.

Interview Preparation Tips

Round: Test
Experience: Examiner takes our Written test.
Tips: Concentrate on exam paper & study thoroughly then surely you can answer somehow questions.
Total Questions: 50

Round: HR Interview
Experience: Examiner takes our Written test.
Tips: Concentrate on exam paper & study thoroughly then surely you can answer somehow questions.

College Name: R.K.Institute of engineering &Technology.
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Tata Motors Interview FAQs

How many rounds are there in Tata Motors Diploma Mechanical Engineer interview?
Tata Motors interview process usually has 2-3 rounds. The most common rounds in the Tata Motors interview process are Aptitude Test, Technical and HR.
What are the top questions asked in Tata Motors Diploma Mechanical Engineer interview?

Some of the top questions asked at the Tata Motors Diploma Mechanical Engineer interview -

  1. What is four stock eng...read more
  2. 5S system implem...read more
  3. What is compress...read more

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Tata Motors Diploma Mechanical Engineer Interview Process

based on 6 interviews

2 Interview rounds

  • Aptitude Test Round - 1
  • Aptitude Test Round - 2
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Tata Motors Diploma Mechanical Engineer Salary
based on 154 salaries
₹1.1 L/yr - ₹5.2 L/yr
8% less than the average Diploma Mechanical Engineer Salary in India
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