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EmbDes Technologies Interview Questions and Answers
EmbDes Technologies Interview Experiences
4 interviews found
Anonymous
Selected
I applied via Campus Placement and was interviewed in Apr 2024. There was 1 interview round.
(2 Questions)
- Q1. Resistors capacitor
- Q2. Signal system diodes
Hardware Engineer Interview Questions asked at other Companies
Selected
I was interviewed in Aug 2023.
(1 Question)
- Q1. Final year project only
(1 Question)
- Q1. Final year project only
Interview Preparation Tips
Hardware Engineer Interview Questions asked at other Companies
I applied via Referral and was interviewed in Nov 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Why we afraid before an interview
Interview Preparation Tips
Embedded Software Developer Interview Questions asked at other Companies
Interview Questionnaire
5 Questions
- Q1. Here first round of interview will be Java if ur applying in software.questions will be on arrays,oops,and language fundamentals and exception handling
- Q2. Android development
- Q3. About web services and retrofit in android
- Q4. Face to face technical rounds
- Q5. About it previous company projects.
Android App Developer Interview Questions asked at other Companies
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Hardware Engineer Interview Questions & Answers
Qualcomm
Aashrith Vennelakanti
posted on 18 Sep 2017
I was interviewed in Sep 2017.
Interview Questionnaire
8 Questions
- Q1. How do you implement the overlap-add method of convolution?
- Ans.
Overlap-add method of convolution is implemented by dividing the input signal into overlapping segments and convolving each segment with a filter.
Divide the input signal into overlapping segments
Apply the filter to each segment
Add the convolved segments together to get the output signal
The length of each segment should be greater than or equal to the length of the filter
The overlap between adjacent segments should be g...
- Q2. Obtain the Nyquist criterion.
- Ans.
The Nyquist criterion states that in order to accurately sample a signal, the sampling rate must be at least twice the highest frequency component of the signal.
The Nyquist criterion is used in digital signal processing and communication systems.
It ensures that the original signal can be accurately reconstructed from its samples.
The sampling rate should be at least twice the bandwidth of the signal to avoid aliasing.
Fo...
- Q3. Obtain the Nyquist sampling frequency for an unevenly distributed band-limited signal.
- Ans.
Nyquist sampling frequency for unevenly distributed band-limited signal.
Determine the highest frequency component in the signal
Use Nyquist theorem to calculate the minimum sampling frequency
Sampling frequency should be at least twice the highest frequency component
- Q4. How do you implement interpolation in discrete-time domain?
- Ans.
Interpolation in discrete-time domain involves estimating values between known data points.
Interpolation is used to fill in missing data or estimate values between known data points.
Common interpolation techniques include linear interpolation, polynomial interpolation, and spline interpolation.
Linear interpolation calculates values along a straight line between two known data points.
Polynomial interpolation uses a poly...
- Q5. How do you obtain the in-phase and quadrature components of a real pass-band signal?
- Ans.
The in-phase and quadrature components of a real pass-band signal can be obtained using a complex mixer.
A complex mixer is used to convert the real pass-band signal to a complex baseband signal.
The in-phase component is obtained by multiplying the pass-band signal with a local oscillator signal in-phase with the carrier frequency.
The quadrature component is obtained by multiplying the pass-band signal with a local osci...
- Q6. How many ways would one arrange sets of coloured balls, the first set all red, the next all blue, and the last all green, and all balls in a set are identical, in a line?
- Ans.
The number of ways to arrange sets of coloured balls in a line.
The number of ways to arrange the red balls is the factorial of the number of red balls.
The number of ways to arrange the blue balls is the factorial of the number of blue balls.
The number of ways to arrange the green balls is the factorial of the number of green balls.
To find the total number of arrangements, multiply the number of arrangements for each se
- Q7. How do you obtain the bit-rate for quantization of a band-limited signal?
- Ans.
The bit-rate for quantization of a band-limited signal can be obtained by considering the Nyquist-Shannon sampling theorem.
The Nyquist-Shannon sampling theorem states that in order to accurately represent a band-limited signal, the sampling rate must be at least twice the highest frequency component of the signal.
The bit-rate for quantization is determined by the number of bits used to represent each sample. It is typi...
- Q8. If you were offered an intern in Communications in Hyderabad, would you take it?
- Ans.
Yes, I would take the intern in Communications in Hyderabad.
Taking the intern in Communications in Hyderabad would provide me with valuable experience in a different field.
It would allow me to expand my skill set and network in a new location.
Internships are great opportunities for learning and growth, regardless of the specific field.
Interview Preparation Tips
Experience: Each section had 20 multiple choice questions and each section was allotted 30 minutes. The aptitude section was fairly difficult due to time constraints. The other two sections had several questions with unfamiliar concepts; however the other questions were easy.
Tips: Practice aptitude questions to increase speed in problem-solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: Technical Interview
Experience: The first round was fairly short. The interviewer asked only three questions and I was able to answer all except for the overlap-add question. However I had the intuition to get to part of the answer.
Tips: Just brush up concepts in analog communications and DSP.
Round: Technical Interview
Experience: The second round was longer. The interviewer asked questions mostly in DSP and analog communications. I was able to answer all but one, which involved interpolation in discrete-time domain. The interviewer gave hints on how to get to the solution of the bit-rate and the interpolation question but I was able to answer only the former. The interviewer also asked if I did a course on Linear Algebra, and I affirmed it but I had no memory of it.
Tips: Just like in the first round, but expect more difficult questions.
Round: HR Interview
Experience: The HR interview was very short and the interviewer did not ask any of the typical HR questions except for if I were offered an internship in Communications, I would take it.
Tips: If you make it this far, you'll most likely make it. There is no need to prepare anything in advance.
College Name: IIT Madras
Sharath NS
Interview Preparation Tips
Experience: Online Test(around 130 students):General Aptitude,C-Aptitude,Technical Section(ECE).
Round: Technical Interview
Experience: Technical Interview 1 (18 students): In this interview I was asked about basic analog electronics,fliters based on OpAmps and frequency response of RLC circuits.I was also asked to explain about my intern projects in this round.
3.Technical Interview 2 (8 students): This round covered basics of Digital System Design and realizing boolean expressions using MOSFET'S (basic VLSI)
Round: HR Interview
Experience: This round was just a formality to ensure that I am truly interested in the company.
General Tips: "1.Always explain each step while giving your answer. Your approach is more important than the final answer itself.
2. Know your basics in electronics well. This will help you to solve any question.
3. Be confident throughout the interview.
4. Highlight any important project in your resume especially those related to electronics."
Focus on reviewing your basics in Digital System Design, Circuit Theory and Linear Integrated Circuits. Also spend some time on studying the basics of VLSI.
Go through concepts of trees, linked lists, sorting and complexity of algorithms which will help in the online test.
Skill Tips: 1.For general aptitude the book 'Quantitative Aptitude by RS Aggarwal' should be helpful.
2.For C-Aptitude 'Let us C' by Yashwanth P Kanetkar helped me to revise the basics of C programming and the book 'Data Structures in C' by AM Padma Reddy helped for understanding the basics of linked lists and trees.
3. For the technical questions going through any basic analog and digital electronics book will suffice.
Skills:
College Name: NIT Surathkal
I was interviewed in Sep 2017.
Interview Questionnaire
5 Questions
- Q1. How is overlap-add implemented?
- Ans.
Overlap-add is implemented by dividing the input signal into overlapping segments, applying a window function, and adding the segments together.
Overlap-add is a method used in digital signal processing to efficiently convolve long signals with finite impulse response (FIR) filters.
The input signal is divided into overlapping segments, typically with a length equal to the filter length.
A window function, such as the Ham...
- Q2. Obtain the Nyquist criterion.
- Ans.
The Nyquist criterion states that in order to accurately sample a signal, the sampling rate must be at least twice the highest frequency component of the signal.
The Nyquist criterion is used in digital signal processing to prevent aliasing.
It ensures that the sampling rate is sufficient to capture all the information in the signal.
The criterion is based on the concept of the Nyquist frequency, which is half the samplin...
- Q3. How do you demodulate a QAM signal?
- Ans.
Demodulating a QAM signal involves separating the amplitude and phase components to recover the original data.
QAM signals combine amplitude and phase modulation
Demodulation involves separating the amplitude and phase components
Techniques like coherent demodulation and quadrature demodulation are used
Coherent demodulation uses a local oscillator to recover the phase component
Quadrature demodulation separates the in-phas
- Q4. How do you implement interpolation in discrete-time domain?
- Ans.
Interpolation in discrete-time domain involves estimating values between known data points.
Interpolation is used to fill in missing data or estimate values between known data points.
Common interpolation methods include linear interpolation, polynomial interpolation, and spline interpolation.
Linear interpolation calculates values by drawing a straight line between two adjacent data points.
Polynomial interpolation uses a...
- Q5. If you were given an intern in Hyderabad, would you take it?
- Ans.
Yes, I would take the intern in Hyderabad to mentor and guide them in their learning journey.
Taking an intern can provide an opportunity to mentor and guide a budding engineer.
It can also help in delegating tasks and projects, allowing for more productivity.
Having an intern can bring fresh perspectives and ideas to the team.
Interns can also assist in research and development projects, aiding in innovation.
Supervising a...
Interview Preparation Tips
Experience: There were 20 questions in each section and 30 minutes for each. Aptitude was fairly difficult due to time. The remaining two sections had a lot of questions with unfamiliar concepts, like linked lists and digital communications. However, the questions were easy otherwise.
Tips: Practice aptitude questions to increase speed of solving.
Duration: 1 hour 30 minutes
Total Questions: 60
Round: HR Interview
Experience: The interviewer was friendly and asked only if I was interested in a Communications intern in Hyderabad. He didn't ask any of the typical HR questions.
College Name: IIT Madras
I applied via Campus Placement
Interview Preparation Tips
Experience: All Sections have negative marking.Aptitude part was easy and I felt Programming some tough as I was not accustomed to terms in coding.Third section has different profiles 1)Hardware(circuits and digital electronics) 2)Communication 3)Software.I appeared for Hardware and I felt the paper was lengthy as it has 20 questions and only 30 minutes to solve and it was tough.It was based on concepts like analog circuits,digital circuits,computer architecture.
Tips: For aptitude general prep is enough.
Section 3 plays important role.So you must be clear about related topics to answer.
Be relaxed and try to answer known questions leaving unknown behind.
Duration: 90 minutes
Total Questions: 60
Round: Technical Interview
Experience: I was selected for Hardware partas I applied for it.
Basic questions on circuits and digital systems were asked..
Some about diodes and its basic functions.
Digital questions on counters and decoders were asked.
Tips: Be confident on what you know and try to prove you were strong in particular area.
Questions were easy if u have prepared even a little bit.
Round: HR Interview
Experience: They ask about your interests and your future plans and what are you expecting from your job.They want to know are you flexible to do and learn any subject.
They ask what do you know about company.
Tips: Don't get nervous . Always keep your attitude up but don't be arrogant .
Learn something about Qualcomm like their products etc..
General Tips: Know your basics in electronics well.
Be confident throughout the interview.
Skill Tips: Prepare well about circuits.
Skills: Analog And Digital Knowledge
Duration: 2
College Name: IIT Madras
Motivation: I was interested in Electronics and Qualcomm would be a great place to work in Electronics.
Interview Preparation Tips
Duration: 1 hour
Round: Stress Interview
Experience: Baisc concepts that every electronics student must know about. (Like MOSFET, verilog concepts) But they test u in really detail so u need to be thorough with it concepts if u need to clear this round. They expect very accurate, precise and correct answers
Round: Technical Interview
Experience: U should be thorough with verilog concepts as well as everything related to digital systems.
Tips: Know ur subjects well. Be confident and prove that ur worth hiring. They might intimidate you but be confident about your answers. :)
Round: HR Interview
Experience: Resume related. Doing good projects and internships always help.
College Name: BITS Pilani
Interview Preparation Tips
Experience: Multiple choice questions divided into three sections:
a) General aptitude
b) C programming
c) Electronics
Round: Technical Interview
Experience: Technical interview 1 : My first round interview was at the digital panel (there was another panel for analog). The questions were mainly focused on basic digital electronics and VHDL coding. Also some puzzles which required simple logical thinking.
3. Technical interview 2 : The second round had questions from basics of VLSI design, setup and hold time, etc.
Round: HR Interview
Experience: The HR interview was more of a formality and included the usual questions.
General Tips: The overall experience was challenging as well as rewarding. All the interviewers were very nice and polite and made me comfortable. Make sure to mention the topics of your interest at the beginning of the interview. Be prepared to explain the projects mentioned in your resume. If you are not sure of the answer to a question, explain to the interviewer your approach to the question as he may guide you to the correct answer. They gave more importance to problem solving approach than accurate answers.
Job profile offered – Hardware Engineer Given an opportunity to ask something to the company people, feel free to ask for more details of the profile offered and the kind of work that the profile demands.
Skill Tips: Most of the questions test your knowledge of the fundamentals of the subjects. Once your basics are strong you can easily crack the interview.
The earlier you start your preparations, you have better chances of getting through. Find some time to prepare during the summer vacation as it can earn you a great advantage. Don’t get nervous during the interview and always have a pleasant smile.
Skills:
College Name: NIT Surathkal
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