内容简介
Thisupdatedmanualpreparesprofessionalandprospectivetractor-trailerdriversforthetestthatapplicantsmustpassinordertoreceiveaCommercialDriver'sLicense.Thetest,administeredbytheU.S.DepartmentofTransportation,isrequiredinall50states.Comprehensivecoverageofboththewrittenanddrivingtestsispresentedwithspecificanswersandexplanationsforallquestionsandsituations.Thisbookisprofuselyillustratedwithdetaileddiagramsandlineartthatdemonstratetheproperproceduresdriversneedtomasterfortheirbehind-the-wheeltests.