Faber India R&D Engineer Interview Questions and Answers

Q1. Tell me about yourself
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Q2. Cad test is very important
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Q1. About the experience
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Q2. About your past experience
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Cad cad cad cad cad cad cad cad cad cad cad cad

Q1. Tell me about your self
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Q2. What is your goals next 5 years
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Q1. GD & T about some questions of subject
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Q1. Personal interview about urself
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Easy if you know basics it's like to know your calculating ability and some technical problems related to designing roughness and failure theory.

Q1. Basic mechanical technical questions and rest of all is about your projects and experience
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Q2. What are the failure theories and which basics they derived
Ans. 
Failure theories are used to predict the failure of materials under different loading conditions.
• Theories include maximum shear stress theory, maximum normal stress theory, and maximum strain energy theory

• Maximum shear stress theory states that failure occurs when the maximum shear stress in a material exceeds the shear strength of the material

• Maximum normal stress theory states that failure occurs when the maximum nor...read more
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Q1. After clearing the round again you need to face the global team interview more like a interaction if you reach here you are almost in.
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Q1. Salary discussion and all
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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
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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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