The School Custodian-Engineer Passbook® 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: procedures for operation and maintenance of boiler systems; procedures for operation and maintenance of HVAC systems; procedures for operation and maintenance of fire protection and life safety systems; procedures for troubleshooting heating, ventilation, plumbing, electrical, carpentry, and lighting problems; procedures for replacement, repair, and maintenance of components of plumbing and electrical systems; and more.