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Old 10-05-2009, 09:31 AM   #21
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Default Re: Practace exam

I made a 73%. Not too bad considering I never studied for this type of test.
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Old 10-05-2009, 11:09 AM   #22
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Default Re: Practace exam

Your score is 63%.
Questions answered correctly first time: 36/100
You have completed the exercise.

I've never done electronics. Still a bad score
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Old 10-05-2009, 11:42 AM   #23
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Default Re: Practace exam

Quote:
as I said, I think that some of the questions are a little misleading.
one of them I know for sure that the answer that they give is wrong.
lol was it about the dual trace o-scope having 2 electron guns?

but ya, i think a few are wrong to, but they say they usually all have more then 1 right answer, just you hafto pick the one thats the Best answer : /
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Old 10-07-2009, 04:52 AM   #24
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Default Re: Practace exam

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Originally Posted by sniperviper21 View Post
lol was it about the dual trace o-scope having 2 electron guns?

but ya, i think a few are wrong to, but they say they usually all have more then 1 right answer, just you hafto pick the one thats the Best answer : /
no, it was about LEDs.

LEDs can be used to send and recieve signals, there is a lot of information on the internet about this, and how LEDs can be used as etremely low cost sensors when hooked up to a microcontroller that can pulse across them and measure residual energy.

the bit about the dual trace scope as well, most scopes have only 1 gun that sweeps between the two, but some much more expensive scopes can have 2 guns.

a lot of answers on the test are quite unclear as well...

to be honest, I think that if you failed that test you'd be well within your rights to contest quite a few of those questions if it were for real.
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