You can view it only if you have 10k rep or more, provided you have a link to the question.
###How can I undelete one of my posts?
Self-deleted answers can be viewed, edited, and undeleted by their original authors.
For questions, this is generally not possible, except in these two situations:
Immediately after you delete a question, it will change color to indicate that it is deleted, and an undelete link will appear. If you have less than 10k reputation, you will not be able to see the link — or any part of the question — after you leave the page.
If and when you reach 10k reputation on a site, you see all of that site's deleted posts. They remain unsearchable, but if you know the URL of your deleted question or marked it as a "favorite" before deleting it, you can visit it directly and use the undelete link. If you were not the deleter, you may need to wait for other 10k users to cast additional undelete votes.
If neither of these situations applies to you, you can ask a moderator to undelete one of your questions by flagging one of your other posts and writing a note in the "other" section explaining the situation.