You can't assume the conduit is grounded unless you check that it's continuous back to the grounding electrodes. The easiest way to tell grounded (neutral) form hot conductor is to use either a non-contact tester or one of the little neon ones that use your body as enough of a ground OR if you have a ground, put a meter or neon bulb between the suspected hot and the ground and you should get an indication. Touching the ground to neutral will do nothing.

The meter will be useful to test things. You'll need to use the probes in the plugs. The clamp-on only reads current.

Only licensed electricians and maintenance employees of corporate property owners are permitted to do electrical work on apartments.

...but but he has a cool meter.

I thought one of the top reasons to live in an apartment or renting in general was to be able to pick up the phone and dial a number and eventually you would come home from work and things would be fixed.

I would recommend putting the meter down and picking up the phone. I think you have the ability to do the work with the right research, I just don't want you to get in trouble. Its not worth it.