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Design Engineer Interview Questions

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What are the different ways you can you tell if this part is steel or aluminium.

4 Answers

Simply by using a magnet, Steel has metallic properties, and the magnet will connect. Aluminium will do nothing.

Many stainless steel alloys are not magnetic, so if your magnet is attracted to the material you will definitely know it is steel, but if it doesn't you will not know what the material is.

Simple methods would be density (feeling the mass of the object), surface finish (color, texture). If coated that may give you the answer i.ie anodized would indicate aluminium. For more information I would go for EDX( Energy-dispersive X-ray spectroscopy) and possible a cross section to look at the grain structure.

If you have a cantilevered beam with a load at the unsupported end, what can you change about the beam to mitigate the effect of the load.

1 Answer

What are 5 different variables of a coil spring you can change to affect spring force?

1 Answer

Given a string find the first non-repeated character.

10 Answers

design a combinational circuit which counts the number of 1s in a 7-bit input .

7 Answers

Behavioral: How would you go about accompanying everyone with their egos when working on a project?

5 Answers

Create a 8 input AND gate using 3 4:1 muxes

7 Answers

You have seven stones and a weighing scale. Six of the stones are equal in weight and one is lighter. How will you figure out which one is lighter ? Minimum tries required to do so ?

5 Answers

Most of the technical questions focused on power supply design. For this position this is a one of the more difficult tasks so they want to know how switching regulators work and different trade offs involved.

5 Answers

design a full adder with 2-1 mux

6 Answers
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