I have been on Union apprentice interview committees. If you want to fail answer the question "Why do you to be an electrican?"
1. I want to make alot of money and I heard electrican make alot of money?
2. I don't know.
3. Because my dad is!!!!!!!!
4.I failed college.
5. I have peaked at McD's and need something else.
6. I heard they have a good pension.
7. Anything with the word DUDE!!!!AHHHHHHH

Passing answers.
1. I believe this field will challege me.

Also I always tried to see how the applicant pulled into the parking lot and how they would leave. If he/she drives like an idiot they are an idiot.
Best of luck.