Dear mir noaman,
1) No papers are allowed to be carried to exam hall but the space provided is always more than enough to do rough work
2) It is a very good trick to use these instrument to solve some time difficult questions easily, quickly and accurately so you should know how to use these effectively and in what kind of problems like mainly in vectors you can use them, so you should bring them to exam hall. Also dont rely totaly on these methods only, they are not good some times.
3) In that gap what you should do is to take 1 hr rest, lunch and some phone calls which are usual. What you shouldn't do is don't discuss paper with others even don't look at the paper, if you think you are missing some concept or formula then you should open book and see that but otherwise you shouldn't read at that time.
Askiitians Team wishing you all the best for your Future.
Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.
Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar : Click here to download the toolbar..
with regards
vinay
IITD