Why Indiana CDL Training Center? Indiana CDL Training Center began training students in 2017 to obtain their CDL. We have the experience needed for success! Our success rates are great! Our students pass their Indiana CDL skills exam on their first try at better than 85% for Class A and 100% for Class B. FREE DMV CDL Knowledge Test Class A Practice Test. Commercial Permit Drivers Sample Written Test Questions from local DMV. Our Online Drivers Prep Knowledge Test Class A Test covers all CDL Trucker Test Questions. No need to Study the IN CDL Handbook. Practice your CDL Knowledge Test Class A Permit Exam Today.