As a newcomer to the forum that has just recently made himself look completely electronics impaired in his only thread, I kinda like this idea. At least it'd show I had a background in some of this stuff!
Other forums I've been a part of in the past had demi-versions of this, and it seemed to work well as a filter for those who just refused to read the FAQs or search for answers before posting. If it was a part of forum registration or something, and you could retake it after you've learned a bit, it sounds like a good idea.
Other questions to think about might include programming language familiarity and such, although I guess the goal isn't to get a life's story or scare newcomers away.
And just as a head start:
1) A resistor is an electrical component that opposes the flow of current by causing a voltage drop (see Ohm's Law)
2) Ohm's Law shows the relationship between current, voltage, and resistance in a circuit: V=IR (see resistor?
3) Just once, and it hurt. Made a jar of SMD LED firefly's for Valentine's with an Atmel Tiny45.
4) I2C is a communications bus I need to learn how to use so I can get me some sonar up and runnin'!
6) BASIC stamps, PICs, and recently started AVRs.