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Knoc Door Services Operations Engineer Interview Questions, Process, and Tips
Knoc Door Services Operations Engineer Interview Experiences
1 interview found
VIKRMADITYA ANAND
(5 Questions)
- Q1. Related to Core Engineering, hr interview questions
- Q2. What's Mechanic
- Ans.
A mechanic is a skilled tradesperson who repairs and maintains machinery, vehicles, and other mechanical systems.
Mechanics use tools and equipment to diagnose and fix mechanical issues.
They may specialize in areas such as automotive, aircraft, or industrial machinery.
Examples of mechanics include auto mechanics who repair cars, aircraft mechanics who maintain airplanes, and industrial mechanics who work on factory equi
- Q3. Types of Exchangers
- Ans.
Types of exchangers include shell and tube, plate, and air-cooled exchangers.
Shell and tube exchangers are most common in industrial applications
Plate exchangers are compact and efficient
Air-cooled exchangers are used when water is scarce or not desirable
- Q4. What is workingof exchanger
- Ans.
An exchanger is a device used to transfer heat between two or more fluids.
Exchangers can be used in various industries such as HVAC, chemical processing, and power generation.
There are different types of exchangers including shell and tube, plate, and finned tube exchangers.
The working of an exchanger involves one fluid passing through tubes or plates while another fluid flows around the tubes or plates to transfer hea...
- Q5. What is Boiler, and it's work
- Ans.
A boiler is a closed vessel in which water or other fluid is heated. It produces steam or hot water for various applications.
Boilers are used to generate steam for power generation, heating, and industrial processes.
They work by heating water or other fluids to create steam or hot water, which is then circulated through pipes to provide heat or power.
Boilers can be fueled by natural gas, oil, coal, or biomass, among ot...
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Software Engineer Interview Questions & Answers
MAQ Software
Rohit Karnatakapu
posted on 10 Nov 2015
Interview Preparation Tips
Experience: They selected students who have CGPA greater than 8.5.After the selection was done,we had skype interviews where each student was given a slot.In the interview they ask you about 'tell me about yourself',your projects.You should explain the projects exactly and clearly.They ask you better alternatives for implementing the project.After that on the basis of the project they ask you questions related to that subject.Data structures is very important.After the questions on projects were asked they ask you to write programs on data structures(simple programs). They asked me a program to reverse a singly linked list. After that,if they are impressed with it,they go for databases.One should be thorough with functionalities of each key.If time permits they may ask you puzzles(some of my friends were asked). Quite an easy interview.They give you enough time to think so no worries.People with some interview experience can easily crack this.The main objective of the interviewer is he/she checks whether the student is perfect in the concepts learned.
Tips: Don't be panic.If you don't know anything directly say 'I don't know'. They ask you very easy questions.
General Tips: Don't be panic.Since this is skype interview you can be relaxed.Be cool and focussed .Listen to the interviewer questions carefully.
Skills: Database Management, Algorithms And Data Structures
College Name: VIT Vellore
Motivation: Company works on latest trends like azure,etc and they work on projects related to microsoft.
ABHISHEK V
Interview Preparation Tips
Experience: 1st Round : 30 Aptitude Questions (Difficulty Level-HIGH) with nega
tive marking- My Score 15/30, Highest in the test
+ 2 Coding Questions ( Dyanamic Programming + N-Queens Problem)
Round: Technical Interview
Experience: Technical Interview- Questions based on recurssion DSA, HTML.
General Tips: Just know the project you have done in details , don't bluff
First Interview and got it in single shot.
Skill Tips: Karumanchi for DSA, w3 Schools for web related topics DBMS and SQL from Tutorial point.
Skills:
College Name: NIT Surathkal
I appeared for an interview before Oct 2020.
(1 Question)
Round duration - 40 minutes
Round difficulty - Medium
Asked about time complexity of algorithm, puzzles, DBMS, cutting edge technologies etc. What are indexes?
- Q1.
Flip Bits Problem Explanation
Given an array of integers
ARRof size N, consisting of 0s and 1s, you need to select a sub-array and flip its bits. Your task is to return the maximum count of 1s that can b... - Ans.
Given an array of 0s and 1s, find the maximum count of 1s by flipping a sub-array at most once.
Iterate through the array and keep track of the maximum count of 1s obtained by flipping a sub-array.
Consider flipping a sub-array from index i to j and calculate the count of 1s in the resulting array.
Return the maximum count of 1s obtained by flipping a sub-array at most once.
(1 Question)
Round duration - 20 minutes
Round difficulty - Medium
Asked 1 standard algorithm
- Q1.
Number of Islands Problem Statement
You are provided with a 2-dimensional matrix having
Nrows andMcolumns, containing only 1s (land) and 0s (water). Your goal is to determine the number of islands in t... - Ans.
Count the number of islands in a 2D matrix of 1s and 0s.
Iterate through the matrix and perform depth-first search (DFS) to find connected 1s.
Mark visited cells to avoid redundant traversal.
Increment island count whenever a new island is encountered.
Interview Preparation Tips
Tip 1 : prepare for competitive programming
Tip 2 : know about standard algorithm
Tip 3 : must be good with dbms
Tip 1 : must have projects, which you can explain to them
Tip 2 : have things on resume, that you are totally certain about.
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed in Oct 2023. There were 5 interview rounds.
There were 19 questions consists of aptitude and technical subject. Then 2 codes were there . Then 1 code of SQL query .
(2 Questions)
- Q1. Technical Interview 45min Introduce yourself Projects included in Resume Discussion on Projects Mentioned in projects Two coding questions -----+all+permutation+of+a+string+geeksforgeeks -----/ 2 Puzzle
- Q2. -----+all+permutation+of+a+string+geeksforgeeks -----/
- Ans.
Generate all permutations of a given string using recursion and backtracking.
Use recursion to generate all possible permutations of the string.
Use backtracking to backtrack and explore all possible combinations.
Store each permutation in an array of strings.
(1 Question)
- Q1. Technical Interview 45 min Introduce yourself Projects included in Resume Discussion on Projects Mentioned in projects Two coding questions -----+a+string+geeksforgeeks -----/ 3 Puzzle
(1 Question)
- Q1. Technical + HR 1 hrs Introduce yourself Projects included in Resume Discussion on Projects Mentioned in projects 3 coding questions ----- ----- ----- 2 Puzzle
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 2 interview rounds.
Simple DBMS and DSA Questions
(2 Questions)
- Q1. String Manipulations
- Q2. Linked lists questions
Selected
I applied via Campus Placement and was interviewed before Apr 2023. There were 3 interview rounds.
Coding round consisting DSA portion mainly.
(2 Questions)
- Q1. SQL questions on Joins
- Q2. Problems given on Hacker rank
(2 Questions)
- Q1. Sorting related questions
- Q2. Tell me about yourself, family background, hobbies
Interview Preparation Tips
- SQL
- DSA
- English
I applied via Naukri.com and was interviewed in Dec 2023. There were 2 interview rounds.
It was medium lavel aptitude test and it included coding assessments
(2 Questions)
- Q1. Graph based question were asked
- Q2. Coding based and some quiz based questions were asked.
Interview Preparation Tips
Selected
I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.
2 dsa +1sql leetcode medium tyoe questions
(2 Questions)
- Q1. Resume related questions , my was MERN STACK
- Q2. One dsa question
Interview Preparation Tips
Array questions - rearranging letters for encryption
(2 Questions)
- Q1. Introduce yourself and your experience in college.
- Q2. Database and sql related questions
Interview Preparation Tips
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Knoc Door Services Operations Engineer Interview Process
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