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What's a good "real engineer" question?

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K1200LT Rider
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re: What's a good "real engineer" question?
K1200LT Rider   2/22/2012 4:23:26 PM
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quote: ignoring air resistance... Also ignoring distance from the earth (or moon or whatever)? The gravitational pull decreases as the item moves further away from a large mass, so the acceleration would be greatest just before hitting the ground (assuming no gas resistance, of course).

NickAllen
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re: What's a good "real engineer" question?
NickAllen   2/22/2012 2:52:20 PM
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Toss a small dense object up a few feet. Ask where the point of maximum acceleration is. (while the object is in flight and ignoring air resistance). Propose a small metal box with two terminals accessible. There is either a 5V voltage source with a 1 ohm resistor in series or a 5A current source with a 1 ohm resistor in parallel inside. Can the candidate tell which it is?

seaEE
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re: What's a good "real engineer" question?
seaEE   2/18/2012 5:53:06 AM
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I'm trying to remember some of the questions I was asked when I was interviewed. One involved two capacitors connected by a switch, with a charge on one of them. What happens when the switch is closed? I believe it was a resistanceless circuit. ;) It was kind of a theoretical question. Another, I believe, involved the gain of a a differential amplifier created with bipolar transistors. Another involved a D flip-flop. I believe there was a simple op-amp question. I remember in the interview mentioning to the interviewer something about a pot-core transformer from our student project, and then wishing I hadn't because it turned out he was a magnetics expert! I'm not sure what other questions there were. Maybe there was a question regarding a resistor voltage divider.

Jon M. Kelley
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re: What's a good "real engineer" question?
Jon M. Kelley   2/17/2012 7:08:38 PM
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Sorry, but you just described a high voltage power source. A standard ohmmeter would vaporize on contact! Lookup discussions of "Tethers in Space Handbook" (NASA & Smithsonian). The first cable I designed for a vacuum chamber got laughed at (thought not meanly) because MY design called for standard Cadmium plated backshells on the connectors. How many engineers would know that in a vacuum, Cadmium evaporates, and then plates out on cooler surfaces. In this instance it would have been the cooled IR sensor we were to test.

K1200LT Rider
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re: What's a good "real engineer" question?
K1200LT Rider   2/16/2012 1:04:54 PM
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Asking the history or makeup of certain terms might be going a bit far. I've never heard of where "ee" or "cc" comes from (at least I can't remember). And, even though I know pretty well how transistors work, I would have never remembered how the word "transistor" evolved.

Fabio007
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re: What's a good "real engineer" question?
Fabio007   2/16/2012 7:32:37 AM
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@seaEE: Yes I Completely agree, having an understanding of why certain terms are used makes it clearer, and easier to remember, and actually puts a human story to the learning. The story of how the transistor got its name, for instance: "transistor" comes from "transconductance-varistor", refer here: http://www.flickr.com/photos/johngineer/6116137343/sizes/o/in/photostream/ Re: VCC: I learned that the "cc" sub-script for positive supply rails meant "collector-collector" rather than "common-collector", for the same reason that negative rails had sub-script "ee" for "emitter-emitter" ie: just for emphasis... maybe others have different views about this..??

David Ashton
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re: What's a good "real engineer" question?
David Ashton   2/15/2012 7:41:32 PM
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That's so interviewers can ask candidates about them and see if they know about them.....

windhorn
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re: What's a good "real engineer" question?
windhorn   2/15/2012 2:50:15 PM
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I ask, "What have you built at home recently?" -- most good engineers are always building something, even if it's not technical. Also, "What books have you read recently?" If they give you a blank look, it's a bad sign IMHO. Engineers seem to prefer hard SF.

windhorn
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re: What's a good "real engineer" question?
windhorn   2/15/2012 2:43:12 PM
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I have to imagine it's a vacuum tube -- I know which is the cathode of a vacuum tube diode, it's the one that's not the plate.

wave.forest
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re: What's a good "real engineer" question?
wave.forest   2/15/2012 12:50:02 PM
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"what's the fundamental difference between a static RAM and a dynamic RAM?" This is a good one!

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