Can this be done?

[Anon]

I have been asked to look into the feasability of building an exam system using PHP and MySQL. The folks who asked me about this want to setup an online testing system to both give and mark tests. So here are my questions.
Using PHP and MySQl can you build a system that would allow you to choose a number of questions from a database, then have them presented to you on a timed basis (such as 5 min per question) and then automatically go on to the next question when the time has expired. Once the test is done the system would be required to mark the questions (all multiple choice). Is this a practical project for PHP and MySQL?

Thanks

Shawn