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I applied via Recruitment Consulltant and was interviewed before Oct 2022. There were 3 interview rounds.
PPM of mechanical equipment involves scheduled inspections, maintenance, and repairs to prevent breakdowns.
Create a detailed schedule for inspections, maintenance, and repairs
Regularly check and lubricate moving parts
Replace worn out parts before they fail
Keep detailed records of maintenance activities
Train staff on proper maintenance procedures
Water cooled chiller works on the principle of removing heat from a liquid via a refrigeration cycle.
Water is circulated through the chiller's evaporator where it absorbs heat from the process water.
The warm water is then pumped to the cooling tower where heat is rejected to the atmosphere.
Cooled water is circulated back to the chiller to absorb more heat.
Refrigerant in the chiller's evaporator evaporates at low pressu...
Spare parts for AHU and pumps should include common wear and tear items like filters, belts, bearings, and seals.
Filters for AHU to ensure proper air quality
Belts for pumps to maintain proper operation
Bearings for both AHU and pumps to reduce friction and wear
Seals for pumps to prevent leaks and maintain efficiency
Valve packing of the cooling tower is essential for preventing leaks and maintaining proper functioning.
Valve packing is used to create a seal around the valve stem to prevent leaks.
Regular maintenance of valve packing is necessary to ensure proper functioning of the cooling tower.
Choosing the right type of packing material is crucial for effective sealing.
Examples of valve packing materials include graphite, PTFE, and...
A surge in the chiller is a sudden increase in pressure or flow rate within the chiller system.
A surge can occur when there is a sudden demand for cooling that exceeds the chiller's capacity.
It can also happen if there is a blockage or restriction in the chiller system.
Surges can lead to inefficiency, increased wear and tear on components, and potential damage to the chiller.
To prevent surges, proper maintenance and mo
The approach temperature range for a water-cooled chiller should typically be between 3 to 5 degrees Fahrenheit.
The approach temperature is the temperature difference between the refrigerant leaving the evaporator and the water entering the condenser.
A range of 3 to 5 degrees Fahrenheit ensures optimal efficiency and performance of the chiller.
Maintaining a proper approach temperature helps prevent issues such as compr...
I applied via Newspaper Ad and was interviewed before Jun 2023. There was 1 interview round.
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I applied via Walk-in and was interviewed in Apr 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed in Apr 2021. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2020. There were 4 interview rounds.
I appeared for an interview before Dec 2020.
Round duration - 90 Minutes
Round difficulty - Medium
2 coding questions and 20 mcq
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 in a grid.
Use Breadth First Search (BFS) to simulate the rotting process.
Track the time taken to rot all oranges and return -1 if any fresh oranges remain.
Handle edge cases like no fresh oranges or all oranges already rotten.
Consider using a queue to efficiently process adjacent oranges.
Ensure to update the grid with the new state of oranges after each second.
Given a natural number N
, return the sum of all its proper divisors.
A proper divisor of Y
is defined as a number X
such that X < Y
and Y % X = 0
.
T...
Calculate the sum of proper divisors of a given natural number.
Iterate from 1 to sqrt(N) and check for divisors
If a divisor is found, add it to the sum and also add N/divisor if it is not the same as divisor
Return the sum as the result
Round duration - 45 Minutes
Round difficulty - Medium
Technical interview
Given an array ARR
consisting of non-negative integers, rearrange the numbers to form the largest possible number. The digits within each number cannot be changed.
Rearrange the array elements to form the largest possible number by concatenating them.
Sort the array elements in a custom comparator function to get the largest number.
Convert the sorted array elements to strings and concatenate them to form the final number.
Handle cases where the numbers have the same prefix by comparing the concatenated forms.
Tip 1 : Be clear about whatever you have mentioned in resume, don't mention buzz words, because interviewer can go in depth
Tip 2 : Along with DS and Algo, if you have 3-4 months experience or internship experience, then be ready to answer scenario based technical questions like scaling the application that you developed and design concepts that can be used for improving
Tip 3 : Last but most important tip is to be calm through out the whole process ,don't loose hope if any round didn't go well ,if you have explained your thought process there is still chance to procees to next round so keep preparating for next rounds.
Tip 1 : Keep it one page resume and mention keywords which align with your technical and personal competencies.
Tip 2 : Mention 3-4 projects in the order that , project which you can explain best should be at top,then the next, and so on.
I applied via Campus Placement and was interviewed before Jun 2021. There were 3 interview rounds.
Round 1 is quit easy , only verbal ability is little bit difficult. So anyone can easy to qualify round.
I applied via Referral and was interviewed in Dec 2020. There were 3 interview rounds.
I applied via Recruitment Consultant and was interviewed in Mar 2021. There was 1 interview round.
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