Well I just got done with my interview about 45 minutes ago. I have absolutely no experience in the field/and or school (yet).

Some of the questions asked were:

-Why is it you want to work as an HVaC tech?
-What kind of pay do you expect?
-Are you able to get along with people?
-HVaC can be very very hard work, are you sure you can handle it?
-Hows your driving record?
-How long is your commute to work?
-What do you make at your current job?(Application probably asks anyway)
-Where do you see yourself 5 years down the road? 10 years?
-Would you work overtime if necessary?

Those are some of them. My interview was very casual and laid back..fortunately. I wore a dress shirts,pants,shoes, but NO tie and the top button was not buttoned. The General Manager whom interviewed me wore a VERY wrinkled polo/golf shirt lol.

Good luck to you, and I hope your interview goes well and is laid back. Professional and up tight interviews are STRESSFUL.