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I applied via Walk-in and was interviewed in Jan 2021. There were 3 interview rounds.
Newton's law refers to three laws of motion that describe the relationship between a body and the forces acting upon it.
Newton's first law states that an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless acted upon by a net external force.
Newton's second law states that the acceleration of an object is directly proportional to the net force acting on the ob...
Knocking is an abnormal combustion phenomenon in internal combustion engines.
It occurs when the air-fuel mixture in the cylinder detonates spontaneously instead of burning smoothly.
It causes a knocking or pinging sound and can damage the engine if left unchecked.
It can be caused by factors such as low octane fuel, incorrect ignition timing, or carbon buildup in the engine.
It can be prevented by using high octane fuel, ...
There are several types of welding, including MIG, TIG, Stick, and Flux-Cored welding.
MIG (Metal Inert Gas) welding uses a wire electrode and a shielding gas to join two pieces of metal together.
TIG (Tungsten Inert Gas) welding uses a tungsten electrode and a shielding gas to create a precise and clean weld.
Stick welding, also known as Shielded Metal Arc Welding (SMAW), uses a consumable electrode coated in flux to cre...
MIG welding is a type of arc welding that uses a consumable wire electrode and a shielding gas to join two metal pieces together.
MIG stands for Metal Inert Gas welding.
The wire electrode is continuously fed through a welding gun and melts to form the weld.
A shielding gas, usually argon or a mixture of argon and carbon dioxide, is used to protect the weld from atmospheric contamination.
MIG welding is commonly used in au...
There are three types of flames in gas welding - neutral, oxidizing, and carburizing.
Neutral flame has equal amounts of oxygen and acetylene and is used for general welding.
Oxidizing flame has more oxygen than acetylene and is used for cutting and brazing.
Carburizing flame has more acetylene than oxygen and is used for hardening steel.
The 7 QC tools are basic statistical tools used in quality control to identify and solve problems.
Check sheet
Control chart
Histogram
Pareto chart
Scatter diagram
Stratification
Cause-and-effect diagram
Top trending discussions
posted on 30 May 2017
I appeared for an interview in Oct 2016.
posted on 16 May 2021
I applied via Naukri.com and was interviewed in Jun 2020. There were 4 interview rounds.
Java OOPs concepts include inheritance, polymorphism, encapsulation, and abstraction.
Inheritance allows a class to inherit properties and methods from another class.
Polymorphism allows objects to take on multiple forms and behave differently based on the context.
Encapsulation hides the implementation details of a class and only exposes necessary information.
Abstraction focuses on the essential features of an object and...
SQL aggregation functions perform calculations on multiple rows of a single column of a table.
Aggregation functions include COUNT, SUM, AVG, MAX, and MIN.
They are used with the SELECT statement to retrieve data from a table.
Examples: SELECT COUNT(*) FROM customers; SELECT AVG(price) FROM products;
Aggregate functions can also be used with the GROUP BY clause to group data by one or more columns.
Join is a SQL operation that combines rows from two or more tables based on a related column between them.
Join is used to retrieve data from multiple tables in a single query.
Types of join include inner join, left join, right join, and full outer join.
Inner join returns only the matching rows from both tables.
Left join returns all the rows from the left table and matching rows from the right table.
Right join returns al...
Join queries are used to combine data from two or more tables based on a related column.
Use the JOIN keyword followed by the name of the table you want to join.
Specify the columns you want to select from each table.
Use the ON keyword to specify the column(s) that the tables should be joined on.
There are different types of joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL OUTER JOIN.
Example: SELECT customers.name, orde...
SQL is a programming language used to manage and manipulate relational databases.
SQL stands for Structured Query Language
It is used to create, modify, and query databases
Common commands include SELECT, INSERT, UPDATE, and DELETE
Example: SELECT * FROM customers WHERE age > 18;
A constructor is a special method used to initialize objects in a class.
Constructors have the same name as the class they belong to.
They are called automatically when an object is created.
Constructors can take parameters to set initial values.
They can be overloaded to provide multiple ways of initializing objects.
Class and object are fundamental concepts in object-oriented programming. Method overloading and method overriding are two ways to achieve polymorphism.
A class is a blueprint or template for creating objects that encapsulate data and behavior.
An object is an instance of a class that has its own state and behavior.
Method overloading is when multiple methods in a class have the same name but different parameters.
Method o...
Exception handling is the process of handling errors and unexpected events in a program.
It involves identifying and anticipating potential errors
It provides a mechanism to handle these errors gracefully
It helps prevent program crashes and improves user experience
Examples include try-catch blocks, throw statements, and finally blocks
Multithreading is the ability of a CPU to execute multiple threads concurrently. Wait method is used to pause a thread.
Multithreading allows for better utilization of CPU resources
Wait method is used to pause a thread until a certain condition is met
Other methods like notify and notifyAll can be used to wake up waiting threads
Multithreading can improve performance in applications that require parallel processing
Java pr...
JSP and Servlet are Java technologies used for creating dynamic web pages and handling HTTP requests and responses.
JSP stands for JavaServer Pages and is used for creating dynamic web pages that can interact with server-side data and logic.
Servlet is a Java program that runs on a web server and handles HTTP requests and responses.
JSP and Servlet work together to create dynamic web applications that can generate HTML, p...
SQL subquery is a query within another query used to retrieve data from one or more tables.
Subqueries are enclosed in parentheses and placed within the WHERE or HAVING clause of the outer query.
They can be used to filter, sort, or aggregate data based on the results of the subquery.
Subqueries can also be used in the SELECT statement to retrieve a single value or set of values.
Example: SELECT * FROM employees WHERE depa...
A complex query is a query that involves multiple tables, conditions, and/or functions.
Start by identifying the tables involved in the query
Determine the conditions that need to be met using WHERE clause
Use JOIN to combine tables if necessary
Use aggregate functions like COUNT, SUM, AVG, etc. to perform calculations
Use subqueries to break down complex queries into smaller parts
Test the query and refine as necessary
posted on 1 Feb 2022
I applied via Naukri.com and was interviewed in Aug 2021. There were 3 interview rounds.
Trafo and power transformers are devices used to transfer electrical energy from one circuit to another. Solar power is a renewable energy source that converts sunlight into electricity.
Trafo is a common abbreviation for transformer.
Power transformers are used to transfer electrical energy between circuits with different voltage levels.
Types of power transformers include step-up transformers, step-down transformers, an...
posted on 15 Nov 2022
I applied via Campus Placement and was interviewed in Oct 2022. There were 2 interview rounds.
Diesel cycle is a thermodynamic cycle used in diesel engines to convert heat into work.
Diesel cycle is a compression ignition cycle.
It consists of four processes - intake, compression, combustion, and exhaust.
Air is compressed in the cylinder, and fuel is injected at the end of compression stroke.
The fuel ignites due to high temperature and pressure, and the resulting expansion pushes the piston down.
The exhaust gases ...
Poisson's ratio of Aluminium is 0.33
Poisson's ratio is the ratio of lateral strain to longitudinal strain
It is a material property that describes the deformation behavior of a material
Aluminium has a Poisson's ratio of 0.33
posted on 7 Mar 2022
I applied via Approached by Company and was interviewed in Feb 2022. There was 1 interview round.
posted on 12 Mar 2024
I applied via Campus Placement and was interviewed in Sep 2023. There were 3 interview rounds.
Easy to solve, Basic practice in need.
posted on 8 Jul 2022
A peticot of insulator is a protective covering used to insulate electrical wires or components.
A peticot of insulator is also known as an insulating sleeve or insulating tube.
It is typically made of materials such as rubber, plastic, or fiberglass.
The peticot of insulator is used to prevent electrical current from flowing to unintended areas or causing short circuits.
It provides insulation and protection against heat,...
posted on 9 Oct 2022
Quantitative aptitude , Logical reasoning
Non elimination round, 7 persons were there
posted on 2 Oct 2022
based on 9 reviews
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