EEE Energy Private Limited Interview Questions and Answers

Q1. Electrical and electronics oriented basic test
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Q1. Write SQL query to return the latest login date for each primary key?
Ans. 
SQL query to return latest login date for each primary key
• Use GROUP BY clause to group by primary key

• Use MAX() function to get the latest login date

• Join the tables if necessary
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Q2. How to find the number of times a number repeats in an array (with less time complexity)?
Ans. 
Use a hashmap to store the frequency of each number in the array.
• Create a hashmap to store the frequency of each number in the array.

• Iterate through the array and update the frequency in the hashmap.

• Retrieve the frequency of the desired number from the hashmap.
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Q3. Validate an array based on a set of rules, with less time complexity.
Ans. 
Use regular expressions to validate array elements efficiently.
• Use regular expressions to define the rules for validation.

• Iterate through the array and apply the regular expression to each element.

• Return true if all elements pass the validation rules, false otherwise.
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Q1. Asked self intro
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Q2. Asked about the projects
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Q3. Explain about the communication serial Protocols like SPI,UART,I2c.
Ans. 
SPI, UART, and I2C are communication serial protocols used in embedded systems to transfer data between devices.
• SPI (Serial Peripheral Interface) is a full-duplex synchronous communication protocol commonly used for communication between microcontrollers and peripheral devices.

• UART (Universal Asynchronous Receiver/Transmitter) is a serial communication protocol that uses two wires for data transmission and is commonly ...read more
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Q4. What is kernel space and any experience in device drivers
Ans. 
Kernel space is a protected area of memory where the core of the operating system resides. Device drivers are software that allows the operating system to communicate with hardware devices.
• Kernel space is a privileged area of memory that is reserved for the core components of the operating system.

• Device drivers are software modules that facilitate communication between the operating system and hardware devices.

• Experien...read more
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Q5. Explain about an os boot up sequence
Ans. 
OS boot up sequence involves several steps such as BIOS initialization, bootloader loading, kernel loading, and initialization of system services.
• BIOS (Basic Input/Output System) initialization

• Bootloader loading (e.g. GRUB, LILO)

• Kernel loading and initialization

• Init process execution

• System services initialization
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Q1. OOPs basics questions like inheritance, smart pointers, diamond problem etc.
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Q2. MFC basic questions like sending data from one window to other, sendmessage post message etc.
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Q1. What does a stress-strain diagram look like?
Ans. 
A stress-strain diagram shows the relationship between stress (force applied) and strain (resulting deformation) in a material.
• The diagram typically starts with a linear elastic region where stress is directly proportional to strain.

• After the elastic limit, the material enters the plastic region where it deforms permanently.

• Finally, the material reaches its ultimate strength before failure occurs.

• Examples of stress-str...read more
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Basic aptitude questions

Q1. Incoterm,PO process,Inventory Management,Pricing,Import export
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Q1. About your experience in last company
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Q1. Salary discussion
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Leadership skills, team spirit, communication skills, problem-solving skills, analytical skills, and decision-making skills.

Q1. Can you tell me about yourself?
Ans. 
I am a dedicated Quality Engineer with a strong background in ensuring product quality and compliance with industry standards.
• Experienced in conducting quality control tests and inspections

• Skilled in identifying and resolving quality issues

• Proficient in using quality management tools and techniques

• Strong attention to detail and analytical skills

• Excellent communication and teamwork abilities
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Q2. What are your strengths and weaknesses?
Ans. 
My strengths include attention to detail, problem-solving skills, and strong communication. My weaknesses include a tendency to overthink and difficulty saying no.
• Strengths: attention to detail

• Strengths: problem-solving skills

• Strengths: strong communication

• Weaknesses: tendency to overthink

• Weaknesses: difficulty saying no
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Q3. Tell me about an experience when you faced difficulty at work while working on a project
Ans. 
I faced difficulty at work while working on a project due to conflicting requirements from different stakeholders.
• Received conflicting feedback from different stakeholders on project requirements

• Struggled to prioritize and balance the needs of each stakeholder

• Had to facilitate meetings and negotiations to reach a consensus

• Implemented a compromise solution that satisfied all parties involved
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The test about the aptitude questions asked normally

Design of system and electrical grid network

Q1. Shut down prosess
Ans. 
Shutting down a process involves terminating a program or application running on a computer system.
• Use task manager or command line to end the process

• Ensure all unsaved work is saved before shutting down

• Consider any dependencies or impact on other processes
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Q2. Breaker and transform se aata hai
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Q3. Shut downprosess
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