Screening test was a joke. If you're an IBEW you should do well as it's an inside test. They ask questions about steam and DC motors. DC motors are quickly being replaced as they are obsolete because of the new AC VFD's. Asking questions about steam to an electrician isn't being realistic unless you were working in the boiler field. If you are a non-union electrician there's no way to really prep so, don't waste your time.
