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New grad electrical engineer Interview Questions

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New Grad Electrical Engineer interview questions shared by candidates

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Milwaukee Tool
New Grad - Electrical Engineer was asked...September 22, 2020

Given 20v DC source how would you provide 5v to an MCU?

1 Answers

Voltage divider. Pro answer would be linear voltage regulator, this is what they use in the industry. Less

Rockwell Collins

Find the weight of the Empire State building.

1 Answers

Flip Flop/Latch questions

Milwaukee Tool

Same situation as previous questions but now sine noise is a step pulse function every 5 micro seconds. What can you do to prevent over voltage for MCU?

1 Answers

Add some diodes in series but in parrallel to capacitor according to the over voltage seen by MCU, remember its not the full 20v because of voltage divider. Assumed diode drop is 0.5v. Other option and probably better is to use zener diode with break down voltage above 5v. Less

L3Harris

Simple Adress decoding

1 Answers

Computed the number of address spaces required.

Milwaukee Tool

Given 20v DC source with 20v 10KHz noise what can you do to step down the voltage to 5v then negate the noise to the MCU?

1 Answers

Do voltage divider like previous question then add capacitor in parallel with MCU. Estimate value of capacitance at 10K using reactance formula. Less

Rockwell Collins

Filter questions

1 Answers

A vending machine isn't functioning properly, explain how you would troubleshoot it. Less

Collins Aerospace

What is your experience with lab equipment.

1 Answers

Due to covid my experience was limited in the University Labs but we did get to use an Analog Discovery Board which has several functions. Less

Rockwell Collins

Draw logic diagram given this equation.

1 Answers

Op amp questions

Epirus

How can you tell if a system is stable or unstable?

1 Answers

Look at a Bode plot to find the Phase and Gain Margins. If either are negative, the system is unstable. Less

Rockwell Collins

Describe a time when you worked with a difficult team member.

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