Anything may be copied for the purposes of examination, which includes answering examination questions, and the submission of a thesis or other material upon which you will be examined and assessed. The only exception is that you may not copy sheet music in order to perform it. The other constraint to be aware of is that this exception applies only for 'the purposes of examination' and does not extend to any subsequent (or prior) use you may want to make of the material, including putting it on a web site, publishing it as a book, or putting copies on public display. If you want to do any of these things and have used material beyond the 'fair dealing' limits, you must obtain permission from the copyright holders. If the material is a web page or similar, it must only be accessible to those who will assess it.