Here's a helpful post from Savvy Sugar:
A job interview is incomplete without a question and answer session that has you doing the asking. You should be prepared with relevant questions about the company, the job at hand and your potential future with the organization. Keep your interview on the right track, and your foot out of your mouth, by asking questions the right way.
Don't Seem Entitled
- Don't Ask: How long before I get a promotion?
- Do Ask: What are the opportunities for advancement, and do you typically promote from within?
Don't Make Your Interviewer Uncomfortable
- Don't Ask: Is there anything about me that would prevent me from getting this job?
- Do Ask: What qualifications are you looking for in the person who fills this job?
Don't Be a Gossip
- Don't Ask: I heard the CEO was involved in scandalous activity, is that true?
- Do Ask: While researching your firm I learned that the company recently [fill in the blank]. Can you tell me a little bit more about this development?
Don't Get Bogged Down in Details
- Don't Ask: Can you break down my day in terms of hours spent doing A, B, C, D, etc.?
- Do Ask: Can you tell me what my average day would be like?
Don't Seem Greedy
- Don't Ask: What kinds of perks do you get around here?
- Do Ask: What do you enjoy most about working here?
Don't Focus on the Negative
- Don't Ask: What's the worst part about this job?
- Do Ask: Given my background and experience, what do you think will be the greatest challenge for me in the beginning?
Don't Ask Frivolous Questions
- Don't Ask: How many other applicants are you interviewing?
- Do Ask: How soon do you expect to make a decision?