CDL Full Practice Test Part 2

1. A CDL applicant is performing the offset backing (right) exercise during the skills test. The applicant must back the vehicle from a straight starting position to a position offset to the right within a defined boundary. Which technique correctly accomplishes this maneuver?

2. A driver pulls into a rest area and walks around the vehicle for a tire check. The driver discovers that the tread depth on one steer axle tire has worn down to 3/32 inch. What is the correct action?

3. A driver is coupling a tractor-semitrailer. After inspecting the fifth wheel and positioning the tractor, what is the correct sequence for connecting the air lines and testing trailer brakes before backing under?

4. A driver is performing a pre-trip inspection and turns on the ignition. The ABS malfunction indicator lamp illuminates, then turns off after a few seconds. The driver starts the engine and the lamp remains off. What does this indicate about the ABS system?

5. A driver approaching a right turn in a tractor-trailer notices a vehicle stopped close to the curb on the cross street. What is the safest approach?

6. A driver operates the same tractor-semitrailer on two different days: Day 1 with a 45,000-pound load on dry pavement, and Day 2 empty (no cargo) on the same dry pavement at the same speed. During brake applications on Day 2, the driver notices the brakes seem less effective and the vehicle slides more easily. Which analysis explains this observation and what adjustment should the driver make?

7. A driver is descending a steep 6% grade when the service brakes begin to fade from heat buildup. The air pressure gauge shows 100 PSI. What is the correct sequence of actions to manage this emergency?

8. You are driving a school bus approaching a railroad-highway grade crossing with passive warning signs (crossbuck signs only, no flashing lights or gates). You have stopped within 50 feet but not closer than 15 feet from the nearest rail and checked both directions. No train is visible or audible. While crossing, your bus stalls on the tracks with 30 students aboard. What is the correct immediate procedure?

9. A driver with Tank Vehicle (N) endorsement is transporting a chemical load in a smooth bore tanker. The shipper has provided loading documentation showing: product weight 44,000 lbs, tank capacity 50,000 lbs (88% fill), outage (ullage) 12%. The driver weighs the combination at a CAT scale: steer axle 12,000 lbs, drive axle 19,500 lbs, trailer tandem 32,500 lbs, total 64,000 lbs. The route includes 50 miles of mountain highway with 6% grades. Analyze this configuration for compliance issues and identify the driving techniques required for safe transport.

10. During the engine start portion of the pre-trip inspection, the driver must verify several systems immediately after starting the engine. Which of the following should the driver check within seconds of engine startup?