Creating an exam system
Maybe you could use the Closed Question module.
You can find more information about the module here.


  Features
  
  
  Designed for practicing: students can take as many attempts as they like.
  Many feedback options, feedback can change with attempts.
  Many question types.
  Questions can be added anywhere in a site.
  Only Questions. Ordering questions in a quiz or case is done by a separate module.