CDL Combination Vehicles

13 practice questions, split into sets of 50

Real CDL Combination Vehicles exam: 20 questions, 80% to pass

Free CDL practice test for the CDL Combination Vehicles. The CDL general knowledge test has 20 questions — work through 13 CDL practice test questions in English and Spanish to learn exactly how many questions are on the CDL test and what to expect. Administered by FMCSA with an 80% passing score requirement. Key topics include Fifth wheel and kingpin, Coupling and uncoupling procedures, Landing gear operation, and more.