Andhra Pradesh Heavy Machinery & Engineering Interview Questions and Answers

Q1. Why we hier you & are interested in relocate?
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Q2. Have you heard about products and company? If yes, elaborate any one product technically?
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Q3. Why want you switch?
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Q1. Confined space working agencies details
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Q2. Hot work safety measures
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Q3. Lost Time Injury Frequency Rate
Ans. 
Lost Time Injury Frequency Rate is a measure of how often injuries occur that result in lost work days.
• LTIFR is calculated by dividing the number of lost time injuries by the total number of hours worked, then multiplying by 1,000,000.

• It is used to track the safety performance of a company or organization.

• A high LTIFR indicates a higher frequency of serious injuries, while a low LTIFR indicates a safer work environment
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Round duration - 120 Minutes
Round difficulty - Easy

Q1. 
Rectangle Area Calculation
Given a list of rectangles, where each rectangle is represented by an array of four integers indicating its bottom-left and top-right corners, calculate the total area covered b...read more
Ans.  Coordinate Compression
• As we can have only 200 distinct rectangles with us so we don’t need to worry about point constraint, we can use the coordinate compression technique to map these points all The x-axis points and y-axis points as well.
• Now these mapped coordinates can be used to form our grid. we can make a grid grid[x][y] = True for rx1 <= x < rx2 and ry1 <= y < ry2. Where rx1 , rx2, ry1, ry2 correspo...read more
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Round duration - 60 Minutes
Round difficulty - Medium

Oops concepts and 1 DSA problem

Q1. 
Bit Set Problem Statement
You are provided with a string, termed as DIGIT_PATTERN, which consists solely of digits. The objective is to identify the first digit that repeats in the sequence. If there's no...read more
Ans. Brute Force
The basic idea of the approach is that we iterate for each index ‘i’ digit in the string ‘DIGIT_PATTERN’, and store the occurrence of that digit in the array/list ‘store’. At any index ‘i’, if the occurrence of the digit is already 1 in the array/list ‘store’, then we would return that digit Or else if the digit has occurred for the first time in the iteration then make the value 1 at index ‘digit’ in the ar...read more
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Round duration - 60 Minutes
Round difficulty - Medium

Firstly Some general questions and then suddenly a cosing question with modifications

Q1. 
Print All Permutations of a String
Given an input string STR, generate and print all possible permutations of the string.
Input:
str
Output:
All permutations of the input string, each on a new line.
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Ans. 
Recursively solved 1stl one
Then applied set data structure to solve second one
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Q1. Related centrifugal pump and blowers
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Q1. Related rotary equipments basics
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Q1. Personel details and previous company details
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Q1. SPC , KAIZEN, GD&T SYMBOL
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Q2. SPC ,POKA YOKA , POISON TEST
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Q3. 5S, layout, first part approval
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Q1. Personal information, working experience, work responsibility, how to handle critical condition, situation, etc
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