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Electrical Engineer Interview Questions

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8,144 electrical engineer interview questions shared by candidates

There are 3 light switches in one room and 3 light bulbs in another. How do you determine which switch controls which bulb if you can only enter the room with the light bulbs once. Now think out of the box and give as many other methods as possible.
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Project Engineer

Interviewed at Lutron Electronics

3.8★
Oct 5, 2009

There are 3 light switches in one room and 3 light bulbs in another. How do you determine which switch controls which bulb if you can only enter the room with the light bulbs once. Now think out of the box and give as many other methods as possible.

If you have a room with 3 bulbs connected to 3 switches outside the room, how would you figure out which switch corresponds to which bulb if you are only allowed to go into the room once. You are not allowed to use any external equipment?
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Electrical Engineer Internship

Interviewed at Lutron Electronics

3.8★
Nov 2, 2013

If you have a room with 3 bulbs connected to 3 switches outside the room, how would you figure out which switch corresponds to which bulb if you are only allowed to go into the room once. You are not allowed to use any external equipment?

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