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Mainstream Energy Solutions Limited (MESL) Interview Questions and Answers

Updated 27 May 2023

Mainstream Energy Solutions Limited (MESL) Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Easy
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 

(2 Questions)

  • Q1. Power systems faults
  • Q2. Symmetrical and non symmetrical fauts
Round 3 - Case Study 

Testing of distribution transformers

Interview Preparation Tips

Interview preparation tips for other job seekers - Training

Power Plant Engineer Interview Questions asked at other Companies

Q1. Boiler cold start-up and shutdown process & types of emergencies in your experience, specific energy consumption, efficiency of boiler, coal size, GCV, What is 5S? How it is implemented in your company explain
View answer (1)

Interview questions from similar companies

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Dec 2024.

Round 1 - Coding Test 

Coding round was ok with mid level difficult questions

Round 2 - Technical 

(3 Questions)

  • Q1. It was more than One hour ,mostly questions were project and real scenario based
  • Q2. Java ,spring ,junit and sql
  • Q3. Project related
Round 3 - Technical 

(2 Questions)

  • Q1. SQL Queries and java
  • Q2. Project related

Interview Preparation Tips

Interview preparation tips for other job seekers - This was my final round with hiring manager, very bad experience ,after clearing all tehcnical rounds,he asked me personal questions and after that didn't release any offer and no communication
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
-
Result
-
Round 1 - Technical 

(4 Questions)

  • Q1. Earthmat calculation
  • Q2. Cable sizing calculation
  • Q3. Insulation Coordination study
  • Q4. Battery and charger calculation
Round 2 - Technical 

(2 Questions)

  • Q1. Short circuit calculations
  • Q2. Insulation coordinate study

Interview Preparation Tips

Interview preparation tips for other job seekers - Job security is less
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected
Round 1 - Technical 

(2 Questions)

  • Q1. What are the key aspects of turbine protection?
  • Q2. Boiler light up?
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

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

Round 1 - Technical 

(2 Questions)

  • Q1. About experience
  • Q2. Achievements in your work
Round 2 - Group Discussion 

About industrial automation 4.0

Round 3 - HR 

(2 Questions)

  • Q1. Salary discussion
  • Q2. Documents verification

Interview Preparation Tips

Interview preparation tips for other job seekers - Good in technical knowledge. Prepare your past work experience.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - HR 

(4 Questions)

  • Q1. Voltage for motors
  • Q2. Used to transfer billore
  • Q3. Prafull billore- early Life, career, journey so far
  • Q4. DC motor - 12to 24volt direct current Low voltage Servo motor -24to96 volt direct current Single phase motor-115to 230 volt 3phase motor- 230to 46o volt

Interview Preparation Tips

Topics to prepare for Operational Energy Group India Machine Technician interview:
  • online advertising
Interview preparation tips for other job seekers - Interview is very important questions is work process area and industry machine working process and safety related questions and interest to interview very excellent knowledge
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via campus placement at Narula Institute of Technology, Kolkata and was interviewed in Aug 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. How to convert kw to mw
  • Ans. 

    To convert kW to MW, divide the power in kW by 1000.

    • To convert kW to MW, divide the power in kW by 1000.

    • For example, 500 kW is equal to 0.5 MW (500 kW / 1000 = 0.5 MW).

  • Answered by AI
  • Q2. What is unit of power
  • Ans. 

    Unit of power is the rate at which work is done or energy is transferred.

    • Unit of power is measured in watts (W)

    • 1 watt is equal to 1 joule per second

    • Power can also be measured in horsepower (hp) in some contexts

  • Answered by AI
Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Leetcode medium-hard

Round 2 - Technical 

(2 Questions)

  • Q1. Largest subarray sum
  • Ans. 

    Find the largest sum of contiguous subarray within a given array of integers.

    • Iterate through the array and keep track of the current sum and maximum sum seen so far.

    • If the current sum becomes negative, reset it to 0 as it won't contribute to the maximum sum.

    • Return the maximum sum found at the end of the iteration.

  • Answered by AI
  • Q2. Level order traversal tree

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare on leetcode

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Types of transformer
  • Q2. Electric connection of house
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-

I applied via Company Website

Round 1 - Technical 

(6 Questions)

  • Q1. What is current
  • Ans. 

    The question is unclear and needs more context to provide a specific answer.

    • Request clarification on what 'current' refers to (e.g. current trends, current challenges, current practices)

    • Provide examples of how you stay current in your field (e.g. attending conferences, reading industry publications)

    • Discuss the importance of staying current in employee relations to adapt to changing workforce dynamics

  • Answered by AI
  • Q2. Current is a flow though the
  • Ans. What is current unit
  • Answered by Ranu Panigrahy
  • Q3. Current unit Ampere
  • Q4. Two types 1 auto machine tapping &/hand tapping
  • Q5. Two typed tapping
  • Q6. Auto matic tapping

Mainstream Energy Solutions Limited (MESL) Interview FAQs

How many rounds are there in Mainstream Energy Solutions Limited (MESL) interview?
Mainstream Energy Solutions Limited (MESL) interview process usually has 3 rounds. The most common rounds in the Mainstream Energy Solutions Limited (MESL) interview process are Resume Shortlist, Technical and Case Study.
What are the top questions asked in Mainstream Energy Solutions Limited (MESL) interview?

Some of the top questions asked at the Mainstream Energy Solutions Limited (MESL) interview -

  1. Symmetrical and non symmetrical fa...read more
  2. Power systems fau...read more

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Mainstream Energy Solutions Limited (MESL) Interview Process

based on 1 interview

Interview experience

4
  
Good
View more

Mainstream Energy Solutions Limited (MESL) Reviews and Ratings

based on 4 reviews

4.0/5

Rating in categories

2.0

Skill development

2.0

Work-life balance

1.0

Salary

1.0

Job security

3.0

Company culture

1.0

Promotions

2.0

Work satisfaction

Explore 4 Reviews and Ratings
Assistant Manager
4 salaries
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₹5.5 L/yr - ₹9.5 L/yr

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₹1.8 L/yr - ₹3 L/yr

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