Amara Raja Power Systems Associate Engineer Interview Questions, Process, and Tips

Aptitude round consists of aptitudes and some pseudocode snippets to solve and it also had one medium level coding question and one hard level coding question.

Q1. Write a pattern pyramid number in Java
Ans. 
Pattern pyramid number in Java
• Use nested loops to print the pyramid pattern

• Increment the number in each row

• Handle spaces for proper alignment
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Q2. Write a C program to find Factorial of a number
Ans. 
A C program to find the factorial of a number using recursion
• Use a recursive function to calculate the factorial

• Handle the base case when the number is 0 or 1

• Multiply the number with the factorial of (number-1) in each recursive call
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Q3. What is Little endian and Big endian in C
Ans. 
Little endian and Big endian are byte ordering formats in which multi-byte data is stored in memory.
• Little endian: Least significant byte is stored at the lowest memory address.

• Big endian: Most significant byte is stored at the lowest memory address.

• Example: In Little endian, the number 0x12345678 is stored as 78 56 34 12 in memory.

• Example: In Big endian, the same number is stored as 12 34 56 78 in memory.
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Q4. Why do you use Docker and Git
Ans. 
I use Docker for containerization to easily manage and deploy applications, and Git for version control to collaborate and track changes.
• Docker allows for consistent development environments across different machines

• Git helps track changes, collaborate with team members, and revert to previous versions if needed

• Both tools improve efficiency and productivity in software development
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Q5. Draw architecture diagram for your Machine Learning Project
Ans. 
The architecture diagram for a Machine Learning project typically includes data preprocessing, model training, evaluation, and deployment stages.
• Data preprocessing stage involves cleaning, transforming, and preparing the data for model training.

• Model training stage includes selecting the appropriate algorithm, training the model on the data, and tuning hyperparameters.

• Evaluation stage involves assessing the model's per...read more
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Q1. Tell me about your family
Ans. 
I come from a close-knit family of four, including my parents and younger sister.
• My parents have always been supportive of my career choices and encouraged me to pursue my passion for software engineering.

• My younger sister is currently studying computer science and we often collaborate on coding projects together.

• Family gatherings are important to us and we enjoy spending quality time together, whether it's celebrating
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Q2. Which is your favorite subject and why
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Q3. What will you do if you get rejected in this round
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Q1. About your self
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Q2. What is your previous experience
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Q1. Where are you living?
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Q2. Why are you leaving your last company?
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Q1. Circuit diagram of relay holding.
Ans. 
A relay holding circuit diagram is used to keep the relay in the energized state even after the control signal is removed.
• The circuit typically includes a holding contact that maintains the relay coil energized.

• A latching relay can also be used for holding without continuous power supply.

• Examples: ladder logic diagram with a holding contact, latching relay circuit diagram.
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Q2. What is PNP and NPN
Ans. 
PNP and NPN are types of bipolar junction transistors commonly used in electronic circuits.
• PNP transistor has a layer of N-type semiconductor between two layers of P-type semiconductor, while NPN transistor has a layer of P-type semiconductor between two layers of N-type semiconductor.

• In a PNP transistor, current flows from the emitter to the base and then to the collector, while in an NPN transistor, current flows fro...read more
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Q3. How many type of sensor?
Ans. 
There are various types of sensors used for different purposes.
• Temperature sensors (e.g. thermocouples, thermistors)

• Pressure sensors (e.g. piezoelectric sensors)

• Motion sensors (e.g. accelerometers, gyroscopes)

• Proximity sensors (e.g. ultrasonic sensors)

• Light sensors (e.g. photodiodes, phototransistors)
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Q4. What is PLC and full form?
Ans. 
PLC stands for Programmable Logic Controller, which is a digital computer used for automation of electromechanical processes.
• PLC is used to control machinery in manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability control.

• It is programmed using a specialized computer language, typically ladder logic or function block diagram.

• PLCs are commonly used in industrie...read more
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Q1. Tell about the previous operational experience
Ans. 
I have over 5 years of operational experience in managing teams, optimizing processes, and ensuring efficiency.
• Managed a team of 20 employees in a retail store, improving customer service and increasing sales by 15%

• Implemented new inventory management system that reduced stockouts by 20%

• Led cross-functional projects to streamline operations and reduce costs
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Q2. Discussed some case studies
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Q3. SAP transactions codes & usage
Ans. 
SAP transactions codes are shortcuts to specific functions in SAP system.
• SAP transaction codes are alphanumeric codes used to access specific functions in SAP system.

• They are used to navigate quickly to desired transactions without having to go through menu paths.

• Examples include VA01 for creating a sales order, ME21N for creating a purchase order, and FB50 for posting a journal entry.
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Q4. Personal family background discussion
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Q1. Experience discussion
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Q2. Salary negotiation
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