Stovekraft Maintenance Engineer Interview Questions and Answers

Q1. How to protect electrical panel in one words
Ans. 
Insulation
• Insulate the panel

• Use protective covers

• Ensure proper grounding

• Regular maintenance
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Q2. What is the process of ug cable laying and its creteria
Ans. 
UG cable laying process involves trenching, cable pulling, jointing, and testing.
• Trenching is done to create a path for the cable and ensure proper depth

• Cable pulling involves laying the cable in the trench and securing it with clamps

• Jointing is done to connect two cables together using connectors and insulators

• Testing is done to ensure the cable is properly installed and functioning

• Criteria for UG cable laying include...read more
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Q1. What is the process of Refrigerant
Ans. 
Refrigerant is a substance used in a heat pump or refrigeration cycle to transfer heat between the indoors and outdoors.
• Refrigerant absorbs heat from the indoor air and releases it outside

• It changes from a liquid to a gas and back again in the refrigeration cycle

• Common refrigerants include R-410A, R-134a, and R-22

• Refrigerants should be handled carefully due to their potential environmental impact
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Q2. What is plc and how to work
Ans. 
PLC stands for Programmable Logic Controller, used in industrial automation to control machinery and processes.
• PLC is a digital computer used to automate electromechanical processes.

• It uses a programmable memory to store instructions and execute specific functions.

• PLCs are commonly used in manufacturing plants, assembly lines, and other industrial settings.

• They can be programmed using ladder logic, function block diagr...read more
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Q3. What is MTTR and MTBF
Ans. 
MTTR stands for Mean Time To Repair and MTBF stands for Mean Time Between Failures.
• MTTR is the average time taken to repair a failed component or system.

• MTBF is the average time between failures of a component or system.

• MTTR is usually measured in hours or days, while MTBF is also measured in hours or days.

• MTTR is an important metric for assessing maintenance efficiency, while MTBF is used to predict the reliability of...read more
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Q4. Defferent wetbeen MTTR and MTBF
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Q1. All questions are related to the fieldwork.
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Q1. Discuss about the previous company and their working projects, CTC and working cultures etc.
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It was 1 coding question with 10 test cases. They asked a question based on binary search. I got 3 hrs to clear that test. I went in as a campus fresher. For lateral joinees, it is a much more difficult question that you have to clear in 4hrs.

Q1. What's the best way to find majority element in an array?
Ans. 
The best way to find the majority element in an array is by using the Boyer-Moore Voting Algorithm.
• Initialize a candidate variable and a count variable.

• Iterate through the array and for each element:

• - If the count is 0, set the current element as the candidate.

• - If the current element is the same as the candidate, increment the count.

• - Otherwise, decrement the count.

• After the iteration, the candidate will be the ...read more
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Q2. Reverse a linked list in K groups.
Ans. 
Reverse a linked list in K groups
• Iterate through the linked list in groups of size K

• Reverse each group of nodes using a temporary pointer

• Connect the reversed groups to form the final reversed linked list
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1. Revere Linked List
2. Maximum water in a container

Q1. 1. ArrayList 2. Types of locaters in Appium 3. D/b UI automator1 and ui Automator 2?
Ans. 
ArrayList is a resizable array implementation in Java. Appium locators include ID, name, class name, xpath, etc. UI Automator 1 and 2 are tools for testing Android apps.
• ArrayList is a dynamic array that can grow or shrink in size. Example: ArrayList<String> list = new ArrayList<>();

• Appium locators include ID, name, class name, xpath, etc. Example: driver.findElement(By.id("elementID"));

• UI Automator 1 is a t...read more
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1. What is same for you and even for PM of US?

Coding round with medium complexity

Q1. Implementation of linkedlist
Ans. 
A linked list is a data structure where each element points to the next element in the sequence.
• Create a Node class with data and a reference to the next Node

• Initialize a LinkedList class with a head Node

• Implement methods to add, remove, search, and traverse the linked list
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Q2. Sorting algoritgms
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Q1. General expectations
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Q2. Role clarity discussion
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