Westway Electronics R&D Engineer Interview Questions and Answers for Freshers

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Politics in india and rest of asis

Q1. Web api , sql, basics
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Q2. Design pattern, Solid principles,
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Java ee architecture jdbc jpi jsp

Q1. Any questions about java
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Q2. Any question Related to Java
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General topic of the day

Q1. Skillset that you possess
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Q2. Why opt this job?
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Q1. Basics of Multi Threading
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Data structures and Algorithms

Aptitude tests assess problem-solving, reasoning, and analytical skills under time pressure. My experience felt like a mental workout, testing speed and accuracy in diverse areas—math, logic, and verbal

Q1. Tell us about your Project
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Q2. Tell the difference between MOSFET and IGBT
Ans. 
MOSFET is faster and more efficient for high frequency applications, while IGBT is better for high voltage and high current applications.
• MOSFET stands for Metal-Oxide-Semiconductor Field-Effect Transistor, while IGBT stands for Insulated Gate Bipolar Transistor.

• MOSFET is faster and more efficient for high frequency applications, while IGBT is better for high voltage and high current applications.

• MOSFET has lower on-sta...read more
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Q3. Tell the principal of Sine wave inverter
Ans. 
A sine wave inverter is a type of power inverter that produces a smooth and consistent AC output waveform similar to that of utility power.
• Sine wave inverters are preferred for sensitive electronics as they provide clean power without distortion.

• They are more efficient and produce less audible noise compared to modified sine wave inverters.

• Examples of devices that benefit from sine wave inverters include laptops, TVs,
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Q4. What is CMOS Latchup
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CMOS latchup is a phenomenon in integrated circuits where parasitic thyristors are inadvertently triggered, causing a short circuit.
• CMOS latchup occurs when a parasitic structure in the CMOS device acts as a thyristor, leading to a low-impedance path between the power supply rails.

• It can result in excessive current flow, potentially damaging the device.

• Preventive measures include layout techniques, guard rings, and pro...read more
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Q5. How to Design an inductor
Ans. 
Designing an inductor involves determining the required inductance value, selecting the core material, calculating the number of turns, and designing the coil structure.
• Determine the required inductance value based on the application requirements.

• Select the appropriate core material based on factors such as frequency, current, and temperature.

• Calculate the number of turns using the formula N = sqrt((L * AL) / (Ae * Nt)...read more
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