1. They always give you 10 days off in a row if you request it. Very rarely they will ask you to move your days off. Usually this will only happen around Christmas.
2. You can put your 10 days back to back every month. There are people that commute from all over the world so they are very good about giving you the days this way.
3. Blank days are not included in your 10 days off. They are kinda of a bonus, some months you may not get any, other months you may get five. It all depends on the staffing.
4. Vacation is given in 2 blocks of 12 days, so you can't break them up. Some people bid them back to back and then bid their 10 days off in front of and behind their vacation. So they will be off for a month and a half.
5. Monthly flight times varies, people usually fly any where between 40-70 hours.

Congrats, have they given you a class date yet?