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L&T Technology Services Senior Electrical Engineer Interview Questions, Process, and Tips

Updated 23 May 2023

Top L&T Technology Services Senior Electrical Engineer Interview Questions and Answers

  • Q1. 1. What IEC standard you are using for designing the panels, for selection of switchgear.
  • Q2. 4. How VFD work, basic components of VFD, parameters to operate the VFD.
  • Q3. 2. Detail design calculations for selecting the Size of busbar, switchgear, type-2 coordination, discrimination study.
View all 9 questions

L&T Technology Services Senior Electrical Engineer Interview Experiences

2 interviews found

I applied via LinkedIn and was interviewed in Mar 2022. 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 - Technical 

(7 Questions)

  • Q1. 1. What IEC standard you are using for designing the panels, for selection of switchgear.
  • Ans. 

    We are using IEC 61439 standard for designing the panels and selecting switchgear.

    • IEC 61439 is the international standard for low-voltage switchgear and controlgear assemblies

    • It provides guidelines for the design, manufacture, and testing of switchgear and controlgear assemblies

    • The standard ensures safety, reliability, and performance of the switchgear and controlgear assemblies

    • IEC 61439 is widely recognized and accept...

  • Answered by AI
  • Q2. 2. Detail design calculations for selecting the Size of busbar, switchgear, type-2 coordination, discrimination study.
  • Ans. 

    Explanation of design calculations for selecting busbar size, switchgear, type-2 coordination, and discrimination study.

    • Busbar size selection based on current carrying capacity and voltage drop

    • Switchgear selection based on fault level and load current

    • Type-2 coordination ensures proper operation of protective devices during a fault

    • Discrimination study ensures that only the faulty section of the system is isolated during...

  • Answered by AI
  • Q3. 3. Control logic of electrical Panel.
  • Ans. 

    Control logic of electrical panel involves designing and implementing the logic for controlling various electrical components.

    • Designing the logic for controlling electrical components such as motors, pumps, and valves

    • Implementing the control logic using programmable logic controllers (PLCs) or other control systems

    • Testing and troubleshooting the control logic to ensure proper operation

    • Documenting the control logic for ...

  • Answered by AI
  • Q4. 4. How VFD work, basic components of VFD, parameters to operate the VFD.
  • Ans. 

    VFDs control the speed of AC motors by varying the frequency and voltage of the power supplied to the motor.

    • VFD stands for Variable Frequency Drive

    • Basic components include rectifier, DC bus, inverter, and control system

    • Parameters include frequency, voltage, current, and acceleration/deceleration time

    • VFDs can improve energy efficiency and reduce wear and tear on motors

    • Example: VFDs are commonly used in HVAC systems to c

  • Answered by AI
  • Q5. 5. Tell me about soft starter panel.
  • Ans. 

    A soft starter panel is an electrical device used to control the starting current of an electric motor.

    • It reduces the mechanical stress on the motor during startup.

    • It gradually increases the voltage supplied to the motor.

    • It can be used to control the speed of the motor.

    • It is commonly used in applications where a large amount of power is required to start the motor.

    • Examples include pumps, compressors, and conveyor belts

  • Answered by AI
  • Q6. 6.What software you are using for testing the electrical components.
  • Ans. 

    We use various software depending on the type of electrical component being tested.

    • We use simulation software like LTSpice and PSpice for circuit analysis.

    • For testing microcontrollers, we use software like Keil and MPLAB.

    • For power system analysis, we use software like ETAP and PowerWorld.

    • We also use software like LabVIEW and MATLAB for data acquisition and analysis.

  • Answered by AI
  • Q7. 7. Tell me about the 2 wire and 4 wire communication.
  • Ans. 

    2 wire and 4 wire communication are methods used for transmitting data or signals between devices.

    • 2 wire communication uses a single pair of wires for both transmitting and receiving data.

    • 4 wire communication uses two pairs of wires, one for transmitting and one for receiving data.

    • 2 wire communication is commonly used in simple applications like telephone lines.

    • 4 wire communication is used in more complex applications ...

  • Answered by AI
Round 3 - HR 

(6 Questions)

  • Q1. 1. Telle about your self, including your family background, education.
  • Q2. 2. Company structure, hararcy to whom you are reporting.
  • Q3. 3. Is you're working in team or individually.
  • Q4. 4. what is the strength of your team and how you are managing your team.
  • Q5. 5. How critical situation you are handling.
  • Q6. 6. Why do you want to change your current Job.

Interview Preparation Tips

Interview preparation tips for other job seekers - 1. Be confidant and honest.
2. Please collect the knowledge and information about your current job how it's perform.
3. At what standard and international code you are following for any technical work.
4. Collect the information about your tools you are using for any type work including software, hardware, machine tool.
5. what perameter you are following for this tools.
6. You must know the fundamental knowledge of your field of work.
7. Collect the information about new technology which is in trand and very closely working with your work domain.
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Approached by Company and was interviewed in Apr 2023. There were 2 interview rounds.

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 - One-on-one 

(2 Questions)

  • Q1. Working of VFD , design of lv panels
  • Ans. 

    VFD is a device used to control the speed of an electric motor. LV panels are used to distribute power to various loads.

    • VFD works by adjusting the frequency of the power supplied to the motor, which in turn controls its speed.

    • LV panels are designed to distribute power to various loads in a safe and efficient manner.

    • Design of LV panels involves selecting appropriate components such as circuit breakers, fuses, and contac...

  • Answered by AI
  • Q2. Standard used in electrical desiy
  • Ans. 

    Various standards are used in electrical design depending on the country, industry, and application.

    • National Electrical Code (NEC) is used in the United States

    • International Electrotechnical Commission (IEC) standards are used globally

    • In the automotive industry, ISO 26262 is used for functional safety

    • In the aerospace industry, DO-254 is used for airborne electronic hardware

    • Standards are also specific to certain applicat...

  • Answered by AI

Senior Electrical Engineer Interview Questions Asked at Other Companies

Q1. 1. What IEC standard you are using for designing the panels, for ... read more
Q2. What is the thyresistor value from gate to cathode in induction f ... read more
Q3. 4. How VFD work, basic components of VFD, parameters to operate t ... read more
Q4. What is the difference between over current and earth fault prote ... read more
Q5. 2. Detail design calculations for selecting the Size of busbar, s ... read more

Interview questions from similar companies

Interview experience
2
Poor
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(1 Question)

  • Q1. Prement Job
Round 2 - HR 

(1 Question)

  • Q1. Good role
Round 3 - HR 

(1 Question)

  • Q1. Which posting u want
Round 4 - Technical 

(1 Question)

  • Q1. What propose in work
Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Apr 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Instrumentation basics
  • Q2. Field instruments related questions
Round 2 - Tool test 

(2 Questions)

  • Q1. Intool test at office
  • Q2. AutoCad test on system
  • Ans. 

    The AutoCad test on system involves assessing the candidate's proficiency in using AutoCad software for electrical instrumentation design.

    • Demonstrate ability to create and modify electrical drawings using AutoCad

    • Show understanding of electrical symbols and standards used in AutoCad

    • Explain how AutoCad can be used to design electrical instrumentation systems

    • Provide examples of previous projects where AutoCad was utilized

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - No system in the company.
No ethics maintained by management and hr.
Spot termination without notice and demand money from employee in reverse.
Huge work pressure on engineers due to incapable senior staff.
Thinking of filing complaint in labor court due to violation of contract terms by company
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Not Selected

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

Round 1 - Aptitude Test 

Some questions time,speed,distance ,averages,technical questions related to your branch

Round 2 - Technical 

(2 Questions)

  • Q1. Tell me about yourself
  • Q2. Technical questions from my electrical branch the topics are based on subjects they are power systems,machines,power electronics.
Round 3 - HR 

(2 Questions)

  • Q1. Tell me about yourself
  • Ans. 

    I am a dedicated Electrical Engineer with a passion for problem-solving and innovation.

    • Graduated with a degree in Electrical Engineering from XYZ University

    • Experienced in designing and implementing electrical systems for commercial buildings

    • Proficient in using CAD software for schematic design

    • Strong analytical skills and attention to detail

    • Completed internships at ABC Company and gained hands-on experience

  • Answered by AI
  • Q2. How did you celebrated holi,what do you know about cyient.
  • Ans. 

    I celebrated Holi with my family and friends by playing with colors and enjoying traditional food. I know that Cyient is a global engineering and technology solutions company.

    • Celebrated Holi with family and friends

    • Played with colors and enjoyed traditional food

    • Cyient is a global engineering and technology solutions company

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Dont forgot the basics I mean start learning from the basics so you can get the concept clear in your mind.

L&T Technology Services Interview FAQs

How many rounds are there in L&T Technology Services Senior Electrical Engineer interview?
L&T Technology Services interview process usually has 2-3 rounds. The most common rounds in the L&T Technology Services interview process are Resume Shortlist, Technical and HR.
What are the top questions asked in L&T Technology Services Senior Electrical Engineer interview?

Some of the top questions asked at the L&T Technology Services Senior Electrical Engineer interview -

  1. 1. What IEC standard you are using for designing the panels, for selection of s...read more
  2. 4. How VFD work, basic components of VFD, parameters to operate the V...read more
  3. 2. Detail design calculations for selecting the Size of busbar, switchgear, typ...read more

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L&T Technology Services Senior Electrical Engineer Interview Process

based on 1 interview

Interview experience

5
  
Excellent
View more

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L&T Technology Services Senior Electrical Engineer Salary
based on 63 salaries
₹6 L/yr - ₹13 L/yr
16% more than the average Senior Electrical Engineer Salary in India
View more details

L&T Technology Services Senior Electrical Engineer Reviews and Ratings

based on 13 reviews

3.4/5

Rating in categories

2.8

Skill development

3.3

Work-life balance

2.9

Salary

3.9

Job security

3.4

Company culture

2.5

Promotions

2.4

Work satisfaction

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