Efftronics Systems Interview Questions, Process, and Tips

Q1. Least corrent will flow through the which component?
Ans. 
The least current will flow through the component with the highest resistance.
• Current follows the path of least resistance

• Ohm's Law states V=IR, so higher resistance results in lower current flow

• Examples: resistors, insulators
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Q2. Volt metre should be connected to the
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Q1. Tell me about your self
Ans. 
I am a dedicated Technical Solutions Engineer with a strong background in troubleshooting and problem-solving.
• Experienced in analyzing technical issues and providing effective solutions

• Skilled in collaborating with cross-functional teams to implement solutions

• Proficient in various programming languages and technologies, such as Java, Python, and AWS

• Excellent communication skills to effectively communicate technical con
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Q2. Why choose this platform
Ans. 
This platform offers a comprehensive set of tools and features tailored for technical solutions engineers.
• Provides robust troubleshooting capabilities

• Offers seamless integration with other systems and tools

• Has a user-friendly interface for easy navigation and usage
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Q1. Question on Besic Electronics.
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Q2. Questions on computer and components.
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There are 65 questions related to ECE core topics, including Network Analysis, some on VLSI, Signals and Systems, Analog Circuits, Electronic Devices, and Amplifier Circuits. Additionally, there are 118 simple questions covering mind games, object identification, and series completion.

Q1. What is life according to you ?
Ans. 
Life is a journey filled with experiences, challenges, growth, and opportunities for self-discovery.
• Life is a precious gift that should be cherished and lived to the fullest

• It involves constant learning, adapting, and evolving as individuals

• Life is about forming meaningful relationships and connections with others

• It includes pursuing passions, setting goals, and overcoming obstacles

• Life is a balance of joy and sorrow,
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Q2. Does education help you to earn money ?
Ans. 
Education can help individuals earn money by providing them with valuable skills, knowledge, and opportunities for career advancement.
• Education can lead to higher paying job opportunities

• Specialized education or training can result in higher salaries

• Education can also lead to promotions and career advancement

• Higher levels of education are often correlated with higher earning potential
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Q3. Do you need education and fame ?
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Q1. Convert hexadecimal to decimal ?
Ans. 
Hexadecimal to decimal conversion involves multiplying each digit by 16 raised to the power of its position.
• Start from the rightmost digit and multiply each digit by 16 raised to the power of its position (0-indexed).

• Add the results of each multiplication to get the decimal equivalent.

• For example, converting 0x1A to decimal: (1 * 16^1) + (10 * 16^0) = 26.
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Q2. Design the components which are involved in the internal logic circuit of a 7-segment display based on the provided circuit ?
Ans. 
Components involved in the internal logic circuit of a 7-segment display include decoder, driver, and individual LED segments.
• Decoder: Converts input signals into the appropriate output signals for each segment.

• Driver: Amplifies the output signals from the decoder to drive the LED segments.

• Individual LED segments: Represent each of the seven segments in the display.

• Example: BCD to 7-segment decoder, transistor driver c
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Q3. Design specifications for creating a vending machine using a microcontroller, incorporating the display of amounts with two 7-segment displays and including four to five additional operational conditions?
Ans. 
Design a vending machine using a microcontroller with two 7-segment displays and additional operational conditions.
• Use a microcontroller to control the vending machine's operations

• Incorporate two 7-segment displays to show the amounts

• Include four to five additional operational conditions such as low inventory alert, coin validation, product selection, etc.
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Q1. Write an assembly language program for displaying a square waves for the frequency of 1 Hz and 2 Hz with the 2 ports .
Ans. 
Assembly language program to display square waves for 1 Hz and 2 Hz using 2 ports.
• Use assembly language instructions to control the ports for outputting square waves.

• Set up a loop to toggle the ports at the desired frequencies to generate the square waves.

• Ensure proper timing and synchronization between the two square waves.
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Q2. Write an assembly language program for reversing a byte for a hexadecimal value ? ex: A3 hexadecimal needs to converted to C5 when reversed .
Ans. 
Assembly language program to reverse a byte for a hexadecimal value.
• Load the hexadecimal value into a register

• Extract the lower 4 bits and upper 4 bits of the byte

• Swap the lower and upper 4 bits

• Combine the swapped bits to get the reversed byte
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Q1. When 2 trains move in opposite directions , what point will they meet at different speeds? And related questions
Ans. 
The trains will meet at a point that is determined by the relative speeds of the trains.
• The point where the trains meet is determined by the sum of the distances traveled by each train.

• The time taken for the trains to meet is determined by the relative speeds of the trains.

• If Train A is traveling at 50 mph and Train B is traveling at 70 mph, they will meet at a point that is closer to Train B's starting point.
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Q2. Matrices , volume , Coins , probability
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Q1. They will be asking mostly what ever you have written in the 2-5 rounds which will be conducted in the company premises .
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Q2. Flip flops, diff of micro-controller and microprocessor, logic gates , I2C , USART , SPI
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Q1. Design a digital circuit to control the tail lights of a car according to some given specifications
Ans. 
Design a digital circuit to control car tail lights based on specifications
• Use microcontroller to receive input signals from car's sensors

• Implement logic to determine when to turn on/off tail lights (e.g. based on brake pedal or light sensor)

• Connect output of microcontroller to control the tail lights
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2 coding problems in c
1) Triangular wave using DAC
2) reverse a byte

Q1. They asked me to explain the questions and how I solved them
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All in one exam : maths , c programming , dbms , personality test

C programming basic codes

Q1. What is operating system
Ans. 
An operating system is a software that manages computer hardware and provides services for computer programs.
• Manages computer hardware resources such as CPU, memory, and storage

• Provides a user interface for interacting with the computer

• Supports running applications and managing processes

• Examples include Windows, macOS, Linux, iOS, Android
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Q2. Count the number of occurences in program in c .
Ans. 
Use a loop to iterate through the array and count the occurrences of a specific element.
• Initialize a counter variable to keep track of the occurrences.

• Use a loop to iterate through the array.

• Check each element in the array and increment the counter if it matches the specific element.

• Return the final count of occurrences.
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