1. Generally each week you have a studio day, a lecture day and a day for technical skills which is only compulsory for first years. This means that you're in uni for 3 whole days and whether you go to studio to work on the other days is up to you. Architecture students are always busy (especially before portfolio deadlines). Of course you can slack off, but come review time the amount of work you've put in will show.
2. Well some choose to work in the studio (but those are closed at weekends and at 8pm on weekdays), and some choose to work at home, or in the university library, it's up to you. I will however say that as an architecture school we do not have our own desks in studio - there are only open spaces. You'll find that some other universities will provide your own desk space for you, or have 24/7 studio opening hours, which might be more preferable for you (or not), depending on your own view.
3. All units have some form of group work in them but altogether individual work have more credit/counts for more.
4. It's pretty much your own initiative. The uni will provide standard lectures on how to get a job, they'll have networking events, but you still have to network/find a job on your own since this isn't a sandwich course and the placement isn't provided by the university.
5. That really differs from tutor to tutor. Some will be more helpful, some will not. But most will be willing to help you if you drop them an email or something (your contact will mostly be confined with the tutors of your studio group and the year leader).
6. All assessments are projects. We have no tests and exams - although during my first year we had 'tech quizzes' which didn't take up any credits, they were just a requirement.