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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 Walk-in and was interviewed before Sep 2020. There were 4 interview rounds.
I appeared for an interview before Jul 2020.
Yes, Infosys is listed on the Indian stock exchanges as well as on the NYSE.
Infosys is listed on the Bombay Stock Exchange (BSE) and National Stock Exchange of India (NSE)
It is also listed on the New York Stock Exchange (NYSE)
Infosys has a market capitalization of over $80 billion as of 2021
I applied via Company Website and was interviewed before Feb 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed before May 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Sep 2019. There were 5 interview rounds.
OOPs concepts in Java are the fundamental principles of object-oriented programming.
Encapsulation: wrapping data and code into a single unit
Inheritance: creating new classes from existing ones
Polymorphism: using a single interface to represent multiple types
Abstraction: hiding implementation details from the user
Examples: class, object, inheritance, polymorphism, encapsulation
Stack is a LIFO data structure while Queue is a FIFO data structure.
Stack follows Last In First Out (LIFO) principle while Queue follows First In First Out (FIFO) principle.
Stack has two main operations: push and pop while Queue has two main operations: enqueue and dequeue.
Stack is used in recursive function calls, undo/redo operations, and backtracking while Queue is used in breadth-first search, printing tasks in ord...
SQL query to find second highest salary in database
Use ORDER BY and LIMIT to get the second highest salary
Assume ties are allowed and use DISTINCT
Method overloading is having multiple methods with the same name but different parameters. Method overriding is having a method in a subclass with the same name and parameters as a method in its superclass.
Method overloading is done within the same class while method overriding is done in different classes (subclass and superclass).
Method overloading is achieved by changing the number of parameters or the data type of ...
The parent class of all classes in Java is the Object class.
All classes in Java implicitly extend the Object class.
The Object class provides basic methods such as toString(), equals(), and hashCode().
Any class can override these methods to provide custom implementations.
Example: public class MyClass extends Object { ... }
Example: Object obj = new MyClass();
SQL databases are relational and use structured query language, while NoSQL databases are non-relational and use various data models.
SQL databases are based on a fixed schema, while NoSQL databases are schema-less.
SQL databases use tables to store data, while NoSQL databases use various data models like key-value, document, columnar, or graph.
SQL databases are better suited for complex queries and structured data, whil...
I applied via Company Website and was interviewed before Oct 2019. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Jun 2021. There was 1 interview round.
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Wtp Plant Operator
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| ₹3.7 L/yr - ₹3.8 L/yr |
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