Building Maintenance Custodian (U.S.P.S.) (C-3430): Passbooks Study Guide Volume 3430

The Building Maintenance Custodian (U.S.P.S.) Passbook(R) prepares you for your test by allowing you to take practice exams in the subjects you need to study. It provides hundreds of questions and answers in the areas that will likely be covered on your upcoming exam, including but not limited to: custodial and building maintenance; electricity and electronics; mechanical aptitude; supervision; and other related areas.