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I applied via Recruitment Consulltant and was interviewed in Sep 2023. There was 1 interview round.
The internal diameter of a bearing with the number 6205 is 25 mm.
The last two digits of the bearing number represent the bore diameter in millimeters
In this case, the '05' in 6205 indicates a bore diameter of 25 mm
Centrifugal pumps use rotational motion to create flow, while reciprocating pumps use back-and-forth motion.
Centrifugal pumps use a rotating impeller to create a centrifugal force that pushes the fluid through the pump.
Reciprocating pumps use a piston or diaphragm that moves back and forth to create pressure and move the fluid.
Centrifugal pumps are typically used for high flow rate, low pressure applications like water...
The number of welding rod used in MS welding process is typically 6013 or 7018.
Common welding rods used in MS welding are 6013 and 7018.
6013 welding rod is used for light to medium penetration on thin metals.
7018 welding rod is used for high penetration and strength on thicker metals.
Measure the dimensions of the shaft and housing to determine the size of the missing oil seal.
Measure the diameter of the shaft where the oil seal sits
Measure the diameter of the housing where the oil seal fits
Check the depth of the seal groove in the housing
Consult equipment manuals or manufacturers for standard sizes
Use a caliper or micrometer for accurate measurements
z, zz, rs, 2rs are suffixes used in bearing codes to indicate different types of seals or shields.
z: indicates a metal shield on one side of the bearing
zz: indicates metal shields on both sides of the bearing
rs: indicates a rubber seal on one side of the bearing
2rs: indicates rubber seals on both sides of the bearing
I applied via Walk-in and was interviewed in May 2022. There were 2 interview rounds.
Different methods of sterilization include heat, radiation, chemicals, and filtration.
Heat sterilization methods include autoclaving, dry heat, and flaming.
Radiation sterilization methods include gamma radiation and electron beam radiation.
Chemical sterilization methods include ethylene oxide gas and hydrogen peroxide vapor.
Filtration sterilization methods involve passing substances through filters with small pore size...
A Microbiology graduate with a Toxicology post-graduate degree can benefit the company by bringing a unique combination of skills and knowledge to the QA Analyst role.
The candidate can apply their understanding of microbiology to identify potential sources of contamination in the production process.
Their knowledge of toxicology can help in assessing the safety of products and identifying any potential risks or hazards.
...
QA stands for Quality Assurance. They are responsible for ensuring that the software meets the required quality standards.
Develop and execute test cases
Identify and report defects
Collaborate with developers to resolve issues
Ensure adherence to quality standards and processes
Provide feedback on usability and functionality
Conduct regression testing
Maintain test documentation
Different types of verification and their sequence.
Static Verification (Requirements, Design, Code)
Dynamic Verification (Unit Testing, Integration Testing, System Testing, Acceptance Testing)
Alpha Testing
Beta Testing
Regression Testing
To train other department personnel to operate a machine, I would follow a systematic approach.
Assess the trainees' existing knowledge and skills
Create a training plan with clear objectives and a structured curriculum
Provide hands-on training with the machine, explaining each step and demonstrating best practices
Offer opportunities for trainees to practice operating the machine under supervision
Conduct regular assessme...
URS stands for User Requirement Specification. It is a document that outlines the requirements of a software system from a user's perspective.
URS is a document that captures the user's requirements for a software system.
It outlines the functional and non-functional requirements of the system.
It is used as a basis for designing and developing the system.
URS is an important document in the software development life cycle...
I applied via Walk-in and was interviewed before Dec 2020. There were 5 interview rounds.
The neutral axis is the line where the stress is zero in a reinforced concrete structure.
The neutral axis divides the cross-section of the structure into two parts: the compression zone and the tension zone.
The depth of the neutral axis depends on the moment of resistance of the section and the bending moment applied.
The position of the neutral axis affects the amount of reinforcement required in the tension zone.
The n...
I appeared for an interview before Apr 2021.
Round duration - 90 minutes
Round difficulty - Medium
This round had 3 coding questions of Medium to Hard level of difficulty.
Given an integer N
representing the number of pairs of parentheses, find all the possible combinations of balanced parentheses using the given number of pairs.
Generate all possible combinations of balanced parentheses for a given number of pairs.
Use recursion to generate all possible combinations of balanced parentheses.
Keep track of the number of open and close parentheses used in each combination.
Return the valid combinations as an array of strings.
You are given a long type array/list ARR
of size N
, representing an elevation map. The value ARR[i]
denotes the elevation of the ith
bar. Your task is to determine th...
Calculate the total amount of rainwater that can be trapped between given elevations in an array.
Iterate through the array and calculate the maximum height on the left and right of each bar.
Calculate the amount of water that can be trapped at each bar by taking the minimum of the maximum heights on the left and right.
Sum up the trapped water at each bar to get the total trapped water for the entire array.
You are given a grid containing oranges where each cell of the grid can contain one of the three integer values:
Find the minimum time required to rot all fresh oranges adjacent to rotten oranges.
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 fresh oranges and return -1 if not all fresh oranges can be rotten.
Update the grid with the new state of oranges after each second.
Handle edge cases such as empty grid or no fresh oranges present.
Example...
Round duration - 60 Minutes
Round difficulty - Medium
This was a standard DS/Algo round where I was given 2 questions to solve under 60 minutes. I was able to come up with the optimal approach for both the questions and then at the end of the interview I was also asked the famous Die Hard Water Puzzle.
Design a queue data structure following the FIFO (First In First Out) principle using only stack instances.
Your task is to complete predefined functions t...
Implement a queue using stacks following FIFO principle.
Use two stacks to simulate a queue.
For enQueue operation, push elements onto stack1.
For deQueue operation, if stack2 is empty, pop all elements from stack1 and push onto stack2, then pop from stack2.
For peek operation, if stack2 is empty, pop all elements from stack1 and push onto stack2, then return top of stack2.
For isEmpty operation, check if both stack1 and st...
You are provided with 'N' intervals, each containing two integers denoting the start time and end time of the interval.
Your task is to merge all overlapping intervals a...
Merge overlapping intervals and return sorted list of merged intervals by start time.
Sort the intervals based on start time.
Iterate through intervals and merge overlapping ones.
Return the merged intervals in sorted order.
Round duration - 60 Minutes
Round difficulty - Medium
This round had 2 coding questions - first one related to Binary Tree and the second one was a simple question from Bit Manipulation. This was followed by some questions from OOPS.
You are given a Binary Tree, and you need to determine the length of the diameter of the tree.
The diameter of a binary tree is the length of the longest path betwe...
The task is to find the diameter of a binary tree, which is the length of the longest path between any two end nodes in the tree.
Traverse the tree to find the longest path between two nodes.
Keep track of the maximum diameter found during traversal.
The diameter may not necessarily pass through the root node.
Consider both left and right subtrees while calculating the diameter.
Example: For input 1 2 3 4 -1 5 6 -1 7 -1 -1
Determine if it is possible to reorder the digits of a given integer 'N' such that the resulting number is a power of two. The leading digit must not be zero.
The fir...
The problem involves determining if it is possible to reorder the digits of a given integer to form a power of 2.
Iterate through all possible permutations of the digits of the given integer.
Check if any of the permutations form a power of 2.
Return 1 if a valid permutation is found, else return 0.
Advantages of OOP include code reusability, modularity, and easier maintenance.
Code reusability: Objects can be reused in different parts of the program, reducing redundancy.
Modularity: OOP allows for breaking down complex problems into smaller, more manageable parts.
Easier maintenance: Changes to one part of the codebase do not necessarily affect other parts, making maintenance easier.
Encapsulation: Data hiding and ab...
Access specifiers define the level of access to class members in Object-Oriented Programming.
Access specifiers include public, private, protected, and default
Public members are accessible from outside the class
Private members are only accessible within the class
Protected members are accessible within the class and its subclasses
Default access is when no access specifier is specified
Round duration - 30 Minutes
Round difficulty - Easy
This was my last round and I hoped it to go good just like the other rounds. The interviewer was very straight to point
and professional. The interview lasted for 30 minutes.
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
I applied via Referral
Queue can be implemented using two stacks by maintaining the order of elements in the stacks.
Create two stacks, let's call them stack1 and stack2
When an element is enqueued, push it to stack1
When an element is dequeued, pop all elements from stack1 and push them to stack2
Pop the top element from stack2 and return it as the dequeued element
If stack2 is empty, repeat step 3
To get the front element of the queue, peek the
Left join returns all records from left table and matching records from right table. Full outer join returns all records from both tables.
Left join is used to combine two tables based on a common column.
In left join, all records from the left table are returned along with matching records from the right table.
If there is no match in the right table, NULL values are returned.
Example: SELECT * FROM table1 LEFT JOIN table...
Magic functions are special methods in PHP that start with __. Autoloading is a way to automatically load classes.
Magic functions are used to handle certain events in PHP, such as object creation or property access.
Autoloading allows PHP to automatically load classes when they are needed, without requiring manual includes.
Magic functions can be used in conjunction with autoloading to dynamically load classes or handle
Given three sorted arrays, find common elements.
Create three pointers to traverse each array
Compare the elements at the pointers and move the pointer of the smallest element
If all pointers point to the same element, add it to the result and move all pointers
Repeat until any pointer reaches the end of its array
Check if a number is a power of 2 or not.
A power of 2 has only one bit set in its binary representation.
Use bitwise AND operator to check if the number is a power of 2.
If n is a power of 2, then n & (n-1) will be 0.
Event bubbling is the propagation of an event from the innermost child element to the outermost parent element.
Events triggered on a child element will also trigger on its parent elements
The event travels up the DOM tree until it reaches the document object
Can be stopped using event.stopPropagation()
Can be useful for event delegation
The .on('click',function() is a more flexible method than .click(function())
The .on() method can handle multiple events and selectors
The .click() method can only handle one event and one selector
The .on() method can also handle dynamically added elements
The .click() method cannot handle dynamically added elements
Function to check if two strings are anagram or not
Create two character arrays from the strings
Sort the arrays
Compare the sorted arrays
Function to determine the order of integers in an array.
Check first and last element to determine if increasing or decreasing
Check for inflection point to determine if order changes
Return order type as string
Optimize images, minify code, reduce HTTP requests, use caching, and lazy loading.
Optimize images using compression and appropriate file formats
Minify code to reduce file size and improve load times
Reduce HTTP requests by combining files and using sprites
Use caching to store frequently accessed data locally
Implement lazy loading to defer loading of non-critical resources
Design a database schema for a movie site with user ratings and recommendations.
Create tables for movies, users, ratings, and recommendations
Use foreign keys to link tables
Include columns for movie genre and user watch history
Algorithm for recommendations can use user watch history and ratings to suggest similar movies
Function to simulate dice roll with equal probability without using random function
Use a toss function that returns either 0 or 1 with equal probability
Call the toss function 3 times and convert the result to a binary number
If the binary number is greater than 0 and less than or equal to 6, return it
If the binary number is greater than 6, repeat the process
Query to fetch duplicate email from table
Use GROUP BY and HAVING clause to filter out duplicates
SELECT email, COUNT(*) FROM table_name GROUP BY email HAVING COUNT(*) > 1;
This will return all the duplicate emails in the table
I applied via Campus Placement
I applied via Referral
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