Responses to your specific questions:
- "other exp amount" - TT is asking if you have expenses, other than those that are specifically detailed on lines 10 through 31. If you do, then TT will take you to a separate screen where you can list those expenses and those will show up on line 32 of Schedule F.
- "at-risk" - TT wants to know if you have any at-risk limitations. This is required in order to determine if you have any loss limitations. Typically for a Schedule F taxpayer the answer will be that you do not have any at-risk limitation. So pay particular attention to how the question is worded.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
