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I applied via Walk-in and was interviewed in Sep 2024. There was 1 interview round.
Water treatment plant operation involves processes such as coagulation, flocculation, sedimentation, filtration, and disinfection to remove impurities and ensure safe drinking water.
Coagulation: Chemicals are added to water to make impurities clump together.
Flocculation: Gentle mixing to form larger particles called floc.
Sedimentation: Floc settles to the bottom of the tank.
Filtration: Water passes through layers of sa...
Effluent treatment plant operation involves treating wastewater to remove contaminants before releasing it back into the environment.
Effluent is collected and transferred to the treatment plant
Physical, chemical, and biological processes are used to remove contaminants
Treated effluent is discharged into water bodies or reused for irrigation
Regular monitoring and maintenance are essential for efficient operation
Sewage treatment plants use physical, chemical, and biological processes to remove contaminants from wastewater before it is released back into the environment.
Sewage enters the plant through pipes and is first screened to remove large objects like sticks and plastic.
The sewage then undergoes primary treatment where solids settle to the bottom and scum floats to the top, which is removed.
Secondary treatment involves bi...
A demineralization plant is used to remove minerals and salts from water through a process of ion exchange.
Demineralization plants use ion exchange resins to remove minerals and salts from water.
The process involves passing water through resin beds where ions are exchanged, resulting in demineralized water.
Demineralization plants are commonly used in industries such as power plants, pharmaceuticals, and electronics man
Softener regeneration process involves flushing the resin bed with a salt solution to remove accumulated minerals.
The softener is taken offline
The resin bed is flushed with a salt solution to remove minerals like calcium and magnesium
The brine solution is then rinsed out of the resin bed
The softener is then put back online to resume softening water
Regeneration frequency depends on water hardness and usage
I applied via Campus Placement and was interviewed before Jul 2021. There were 4 interview rounds.
Aptitude test on CS subjects like C programming, DBMS, CN, and OS.
There were 2 input-output based questions of easy to moderate level
Every candidate was given an individual topic and was asked to speak on it
I applied via Referral and was interviewed before Jan 2021. There was 1 interview round.
I applied via Campus Placement and was interviewed before Feb 2021. There were 3 interview rounds.
Aptitude round consists Logical reasoning, General Aptitude, Grammar related questions etc. All are moderate level questions.
OOPs is a programming paradigm that uses objects to represent real-world entities. Java is an OOPs language.
OOPs stands for Object-Oriented Programming System
Java is a class-based OOPs language
Encapsulation, Inheritance, Polymorphism, and Abstraction are the four pillars of OOPs
Objects have state and behavior
Java supports interfaces, which allow for multiple inheritance
Example: A car can be represented as an object wit...
Java solves machine dependency by using bytecode and virtual machine.
Java code is compiled into bytecode which is platform-independent
The bytecode is executed by the Java Virtual Machine (JVM) which is platform-specific
JVM translates bytecode into machine code for the specific platform
This allows Java code to run on any platform with a JVM installed
Example: A Java program compiled on Windows can run on Linux or Mac as
I applied via Company Website and was interviewed before Jul 2021. There were 3 interview rounds.
Aptitude, reasoning, English, cloud sections
2 questions in which , one has to complete within an 50 minutes
I applied via Campus Placement and was interviewed before May 2021. There were 2 interview rounds.
Numerical ability and logical reasoning followed by some coding mcqs
Printing 1 to 100 without for loop
Use recursion to print numbers from 1 to 99
Print 100 outside the recursion
Use a base case to stop recursion at 100
I applied via Campus Placement and was interviewed before Jun 2021. There were 2 interview rounds.
Simple aptitude test
I applied via Recruitment Consultant and was interviewed before Jul 2020. There was 1 interview round.
I appeared for an interview before Sep 2020.
Round duration - 60 minutes
Round difficulty - Easy
Round duration - 50 minutes
Round difficulty - Easy
Round duration - 60 minutes
Round difficulty - Easy
At the beginning of this round, the interviewer asked me about the data structures I knew. Linked lists, trees, graphs, arrays etc. was my answer. He asked me how well I knew Dynamic Programming. I said I wasn’t strong in that and he said that he would ask me a question on dynamic programming for sure.
Round duration - 40 minutes
Round difficulty - Easy
The interviewer asked me if I was comfortable with the interview process so far and how the previous interviews were. I said it was good and he gave me the first problem to solve.
Round duration - 60 minutes
Round difficulty - Easy
The interviewer asked me some Computer Science fundamentals in this round as well as some behavioural questions.
Implement a Trie data structure with insert and search functions.
Create a TrieNode class with children and isEndOfWord attributes.
Implement insert function to add words by iterating through characters.
Implement search function to check if a word exists by traversing the Trie.
Example: Insert 'apple', 'banana', 'orange' and search for 'apple' and 'grape'.
Do lot of hard work and practice of Data Structures and Algorithms based questions. I personally recommend you Coding Ninjas and Geeks For Geeks for interview preparation.
Application resume tips for other job seekersMake your resume short and try to make it of one page only and do mention all your skills which you are confident of in your resume.
Final outcome of the interviewSelectedI applied via Campus Placement and was interviewed before Aug 2021. There were 2 interview rounds.
It was a basic aptitude test.
based on 3 interviews
Interview experience
based on 1 review
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Wtp Plant Operator
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| ₹3.7 L/yr - ₹3.8 L/yr |
TCS
Accenture
Wipro
Cognizant