1. No, a librarian works in a library.
2. No, a caretaker is a person who helps keep the school working.
3. No, IT stands for Information Technology.
4. They may, but it is not the rule.
5. They may, butr this is not the rule.
6. No, a ruler is a tool you use to measure things.
7. Sometimes yet, but usually they are outside of school when they play truant.