The Line Supervisor (Surface) 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: installation, troubleshooting, inspection, repair, testing and maintenance; supervisory methods and practices in accordance with rules, regulations, policy instructions, procedures, and labor-management practices; safe and efficient work practices and procedures; reading and interpreting technical drawings, wiring diagrams and schematics; job related mathematical calculations and other related areas; and more.