Arf Design Interview Questions, Process, and Tips

Written test with pen and paper, they gave us question related to circuit, network, digital electronics and electronics devices basics

Q1. Tell. Me about your self
Ans. 
I am a passionate and experienced design engineer with a strong background in mechanical engineering and a proven track record of delivering innovative solutions.
• Graduated with a degree in Mechanical Engineering from XYZ University

• Worked for 5+ years at ABC Company designing and optimizing mechanical systems

• Proficient in CAD software such as SolidWorks and AutoCAD

• Strong problem-solving skills and ability to work in a t...read more
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Q2. What is the transistor
Ans. 
A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.
• Transistors are fundamental building blocks of modern electronic devices.

• They can amplify signals, control the flow of current, and act as switches.

• Common types of transistors include bipolar junction transistors (BJTs) and field-effect transistors (FETs).
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Q1. Different configuration of current Mirrors With advantages and disadvantages
Ans. 
Different current mirror configurations include simple, Wilson, cascode, and folded cascode.
• Simple current mirror: easy to design but limited output impedance

• Wilson current mirror: improved output impedance but more complex design

• Cascode current mirror: higher output impedance and better performance at high frequencies

• Folded cascode current mirror: even higher output impedance and improved linearity

• Each configuration h...read more
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Q2. 2 stage opamps design?
Ans. 
2 stage opamps design involves cascading two amplifier stages to achieve desired gain and bandwidth.
• Two amplifier stages are connected in series to achieve higher gain and bandwidth.

• The first stage provides most of the gain while the second stage provides additional gain and output drive capability.

• Each stage can be designed using different amplifier configurations such as common-source, common-emitter, etc.

• Careful con...read more
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Aptitude test comprises of question like time and work, percentage, family relation, SI, etc.

Q1. Technical test consist of questions from analog design like equivalent resistance circuit analysis current founding voltage question etc.
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Q1. There was technical interview, questions based on aptitude as well as technical.
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Q1. In HR round the questions were based on personal skill and little bit of Technical questions
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Network Theory, Transformers & Maths

Q1. Family background?
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Q2. Network theory, Use of capacitor in fan, diagram of transformer, Gates
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