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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.
Top trending discussions
I am a highly skilled System Engineer with expertise in designing and implementing complex systems.
Experienced in managing and troubleshooting network infrastructure
Proficient in virtualization technologies such as VMware and Hyper-V
Strong knowledge of operating systems like Windows and Linux
Familiar with scripting languages like PowerShell and Bash
Excellent problem-solving and communication skills
Yes, I have experience working in teams.
I have worked on several group projects during my studies.
I have collaborated with colleagues to solve complex technical problems.
I have participated in cross-functional teams to implement system upgrades.
I have also been part of agile development teams, working closely with software engineers and testers.
One example of teamwork is when I led a team of engineers to successfully d
Java is an object-oriented language while C is a procedural language.
Java is platform-independent while C is platform-dependent.
Java has automatic garbage collection while C requires manual memory management.
Java has built-in support for multithreading while C requires external libraries.
Java has a larger standard library compared to C.
Java is more secure than C due to its strong type checking and exception handling.
C ...
Pointers are variables that store memory addresses of other variables in programming languages.
Pointers allow direct access and manipulation of memory locations.
They are commonly used in programming languages like C and C++.
Pointers can be used to pass variables by reference, allowing modifications to the original value.
They can also be used to dynamically allocate memory.
Example: int* ptr; // declares a pointer to an
In 5 years, I see myself as a senior software engineer leading a team of developers.
Leading a team of developers
Working on complex projects
Continuing to learn and grow in my role
Contributing to the success of the company
Find sum of all numbers formed from root to leaf path in a binary tree
Traverse the binary tree using DFS
At each leaf node, add the number formed from root to leaf path to a sum variable
Return the sum variable
Time complexity: O(n)
Example: For a binary tree with root value 1, left child 2 and right child 3, the sum would be 12 + 13 = 25
Given a string, print all possible strings that can be made by placing spaces (zero or one) in between them.
Use recursion to generate all possible combinations of spaces
For each recursive call, either add a space or don't add a space between the current character and the next character
Base case is when there are no more characters left to add spaces between
Time complexity is O(2^n) where n is the length of the string
Preorder traversal without recursion
Use a stack to keep track of nodes
Push right child first and then left child onto stack
Pop top of stack and print value
Repeat until stack is empty
Find longest continuous patch on a 12 km road with updates in patches
Maintain a variable to keep track of current patch length
Update the variable whenever a new patch is added
Maintain a variable to keep track of longest patch so far
Compare current patch length with longest patch length and update if necessary
Use a sorted data structure like a binary search tree to store the patches for efficient search
Time complexity: ...
Find median of an unsorted array.
Sort the array and find the middle element
Use quickselect algorithm to find the median in O(n) time
If the array is small, use brute force to find the median
Find 'k' elements closest to a given number from a stream of characters.
Use a priority queue to keep track of closest elements.
Update the queue as new characters come in.
Return the 'k' closest elements from the queue.
Design a data structure with O(1) insert, remove, find-max, and delete-max operations.
Use a doubly linked list to maintain the elements in sorted order.
Use a hash table to store the pointers to the nodes in the linked list.
Maintain a pointer to the maximum element in the hash table.
Update the pointers in the hash table when inserting or removing elements.
Update the maximum pointer when deleting or inserting the maximum
Check if a given linked list is a palindrome.
Traverse the linked list and store the values in an array.
Compare the first and last elements of the array, then move towards the center.
If all elements match, the linked list is a palindrome.
Alternatively, use two pointers to find the middle of the linked list and reverse the second half.
Compare the first half with the reversed second half to check for a palindrome.
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