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Transmission lines are typically designed for higher voltages like 110 kV, 220 kV, 400 kV, and above due to efficiency and cost considerations.
Transmission lines are designed for higher voltages to reduce energy losses during transmission.
Higher voltages allow for longer transmission distances without significant power loss.
Higher voltage transmission lines are more cost-effective compared to lower voltage lines for lo...
Three phase voltage is not simply the sum of single phase voltages due to different configurations and power distribution requirements.
Three phase power systems are designed to be more efficient and balanced compared to single phase systems.
In a three phase system, the voltage between any two phases is 440V, not the sum of single phase voltages (220V).
The total power in a three phase system is proportional to the squar...
I applied via Referral and was interviewed before Dec 2021. There were 3 interview rounds.
Isolator is a switch that isolates a circuit from power source while insulator is a material that does not conduct electricity.
Isolator is used to disconnect a circuit from power source for maintenance or safety purposes.
Insulator is used to prevent the flow of electricity through a material.
Isolator is a mechanical device while insulator is a material property.
Examples of isolators include circuit breakers, disconnect...
GIS substations use gas-insulated switchgear while AIS substations use air-insulated switchgear.
GIS substations are more compact and require less space than AIS substations.
GIS substations are more expensive to install and maintain than AIS substations.
GIS substations are more reliable and have lower maintenance costs than AIS substations.
AIS substations are more commonly used for lower voltage applications while GIS s...
Circuit breakers used in GIS are designed to interrupt the flow of electrical current in case of a fault.
GIS stands for Gas Insulated Switchgear
Circuit breakers used in GIS are typically SF6 circuit breakers
SF6 circuit breakers use sulfur hexafluoride gas to extinguish the arc
GIS circuit breakers are compact and require less maintenance compared to traditional air-insulated switchgear
Earthing is crucial for safety in substations and tunnels. Materials used include copper, steel, and galvanized iron.
Earthing ensures that any electrical faults are safely discharged to the ground.
In substations, earthing is necessary to protect equipment and personnel from electrical hazards.
In tunnels, earthing is important to prevent the buildup of static electricity and to protect against lightning strikes.
Material...
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I applied via Naukri.com and was interviewed before Aug 2020. There were 4 interview rounds.
I applied via Company Website and was interviewed in Jul 2021. There were 3 interview rounds.
Reversing a string involves rearranging its characters in the opposite order, which can be done using various methods.
Use built-in functions: In Python, you can reverse a string with slicing: `reversed_string = original_string[::-1]`.
Iterative approach: Loop through the string from the end to the beginning and build a new string.
Using recursion: Define a function that calls itself with a smaller substring until it reac...
I applied via Campus Placement and was interviewed in Aug 2021. There was 1 interview round.
Dynamic professional with diverse experience in management, team leadership, and strategic planning, eager to contribute to organizational success.
Over 5 years of experience in management roles, leading teams to achieve operational goals.
Successfully implemented a new project management system that improved efficiency by 30%.
Strong background in customer service, enhancing client satisfaction scores by 20% through effe...
Python is a high-level, interpreted programming language known for its simplicity, readability, and versatility.
Python is used for web development, data analysis, artificial intelligence, and more.
It has a large standard library and supports multiple programming paradigms.
Python code is often shorter and easier to read than other languages.
It uses indentation to indicate code blocks instead of curly braces or keywords.
...
High-level languages are programming languages that are easier to read and write than low-level languages.
High-level languages are closer to human language than machine language.
They are easier to learn and use than low-level languages.
Examples of high-level languages include Java, Python, and C++.
HCL Technologies is a leading global IT services company based in India, specializing in software development and IT consulting.
Founded in 1976, HCL is one of India's original IT services companies.
HCL operates in over 50 countries, providing services to clients across various industries.
The company focuses on innovation and has invested heavily in R&D, exemplified by its HCL Innovation Labs.
HCL's services include ...
posted on 2 Mar 2022
Good Practice
I appeared for an interview in Nov 2020.
Round duration - 120 minutes
Round difficulty - Medium
This was an online coding, mcq and debugging round round held on Amcat platform, there were 3 sections in the test.
1)20 MCQ questions {10 involving mathematics and the other 10 on programming fundamentals}; duration:20 mins;
you cannot navigate back to a questions after moving further, so have to answer carefully
2)debugging section- it involved 7 questions which were to be completed within 20 mins, 5 of them were very easy, each question only took almost a minute to figure out the problem with the code, last 2 questions were relatively moderate and there were errors at 3-4 sections of the entire code. I was able to solve all the questions in 15 mins
3)2 Coding questions- duration:80 mins, one was moderate on string while the other one involved dynamic programming, I was able to successfully execute all the available test cases.
Given two strings, S
and X
, your task is to find the smallest substring in S
that contains all the characters present in X
.
S = "abdd", X = "bd"
Find the smallest substring in S that contains all characters in X.
Use a sliding window approach to find the smallest window in S containing all characters of X.
Maintain a hashmap to keep track of characters in X and their frequencies.
Slide the window by moving the right pointer until all characters in X are found, then move the left pointer to minimize the window size.
Return the smallest window found.
Example: S = 'abd...
You are given a 2D matrix 'ARR' of size 'N x 3' with integers, where 'N' is the number of rows. Your task is to compute the smallest sum achievable by selecting one...
Find the smallest sum achievable by selecting one element from each row of a 2D matrix, following certain constraints.
Iterate through each row and find the minimum element that does not violate the constraints.
Keep track of the minimum sum achieved by selecting elements from each row.
Avoid selecting elements directly beneath previously selected elements.
Round duration - 45 minutes
Round difficulty - Hard
The interview started with introduction, there were two interviewers, they both introduced themselves and then asked me to introduce myself. Then we had a brief description on my projects, and they really appreciated my projects. Then as they were more concerned with DSA part, so we moved towards solving a coding problem. It was a famous rotten oranges problem with some change in language but as I haven't seen it beforehand, I wasn't able to give them an optimal approach and had to ask for some hints, but with a certain amount of help and hints, I was able to solve the problem and successfully coded it in 5 mins. Then the interviewers went for a dry run of the algorithm and tried to run it on each and every corner case, but as my algorithm was kind of bullet proof, it successfully passed all the corner cases.
Then they went for some questions on OOPS concepts involving inheritance and we had a long discussion on virtual function and runtime polymorphism. Then the interview was ended after a Q/A round that lasted for 3-4 minutes.
Given a grid containing oranges in three possible states:
Every second, any fresh orange adjac...
Given a grid with fresh and rotten oranges, determine the minimum time for all oranges to become rotten.
Create a queue to store the coordinates of rotten oranges and perform BFS to rot adjacent fresh oranges
Track the time taken to rot all oranges and return -1 if some fresh oranges remain
Handle edge cases like empty grid or no fresh oranges present
Example: For input grid = [[2,1,1],[1,1,0],[0,1,1]], the minimum time to...
Tip 1 : Try to keep yourself involved in competitive programming on regular basis {ex-Codechef, codeforces etc}
Tip 2 : brush up concepts on DSA and practice at least all questions from interviewbit and around 300 questions from GFG and Leetcode of upto intermediate level, this will help you in building your concepts and you will be quickly able to answer the questions in face to face interviews
Tip 3 : Complete some courses on data structures and algorithms and some programming languages{coding ninjas courses are preferable for valuable content}
Tip 1 : Try to keep only those things in resume on which you have very good command and you should be able to answer all of the questions(upto moderate level) related to your technical skills
Tip 2 : Mention your projects with brief description, try avoiding very high level description because some times reader might not be able to understand your work, keep it descriptive and understandable
posted on 26 May 2022
I applied via Approached by Company and was interviewed before May 2021. There were 2 interview rounds.
I applied via Recruitment Consulltant and was interviewed before Nov 2021. There were 4 interview rounds.
MCQ's and Coding Problem - 1 related with Java, RDBMS, JS
Some of the top questions asked at the Piscesia Savronik interview -
based on 2 interview experiences
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