I work for consulting company and I did my H1B stamping on June. I was asked following questions

1) how much employee does your company have?
2)what exactly do you work?(i mentioned my job responsibilities for client company)
3) How long is your vacation?
4) Are you getting married? Or do you have any plans to get married?
5)how much hour do you work per week?(I mentioned 40 and consular asked do you do any overtime other than that 40 hours, i said NO)

Consular gave me the token and asked me to come after 2 days to pick up the visa.

Make sure if you are working on consulting company have the following:
1)Client letter - a most
2) Client company batch
3) Letter from your company mentioning you work for the respective client with hours of work(40 in my case)
4) Job offer letterr
5)Employment verification letter from the company you work.
6)Photo of you and your working desk(good to have)
Rest are other ususal documents like tax return, tax file, bank statement, certificates etc