1. A driver is performing an offset backing maneuver to the left during a CDL skills test. After the initial backward movement, the driver observes that the tractor and trailer are angled at approximately 45 degrees relative to the target lane, but the trailer rear is positioned too far to the right. The driver needs to determine the correct sequence of corrections. What is the best analysis and corrective action?

2. For a 60-foot combination vehicle traveling at 55 mph, what is the minimum recommended following distance?

3. What is the correct following distance formula for a combination vehicle traveling at highway speeds?

4. When connecting air lines between tractor and trailer during a coupling procedure, which air line connects to which glad hand, and what is the correct sequence?

5. During the CDL skills test, you are performing straight-line backing. You must back the vehicle approximately 100 feet within a marked lane. What is the PRIMARY purpose of checking BOTH mirrors during this maneuver?

6. A driver needs to uncouple a tractor from a semitrailer at a truck stop. Which step should be performed FIRST in the proper uncoupling sequence?

7. What is the primary purpose of the Antilock Braking System (ABS) on a commercial motor vehicle?

8. What is the minimum following distance formula for commercial motor vehicles?

9. A driver starts their shift at 6:00 AM after 10 hours off duty. They drive 4 hours, load cargo for 2 hours, drive 3 more hours, take a 30-minute break, then drive 2 more hours. What time must they stop driving to comply with the 14-hour rule?

10. Which lights and signals must be verified during the pre-trip inspection cab check with engine running?

11. Which of the following actions during a CDL skills test basic control exercise would result in AUTOMATIC FAILURE rather than point accumulation?

12. A driver is securing a 4,000-pound metal coil on a flatbed trailer. The coil is approximately 5 feet in diameter. According to 49 CFR Part 393 Subpart J, what is the minimum combined Working Load Limit (WLL) that the tiedowns must provide to properly secure this cargo?

13. A semi-trailer has a tandem axle group at the rear carrying 32,000 pounds. The single steer axle carries 12,000 pounds. What is the total gross vehicle weight, and is it within federal limits?

14. During the walk-around inspection of a Class A tractor-semitrailer, what suspension component condition indicates a defect that should be reported on the DVIR?

15. You are driving a loaded tractor-semitrailer on a dry highway when you experience a sudden tire blowout on the right front steer tire. The vehicle begins pulling sharply to the right. What is the correct immediate response sequence to handle this emergency safely?

16. When operating a commercial motor vehicle with a manual transmission, what technique should be used to shift gears smoothly and protect the transmission?

17. A commercial driver approaches a railroad crossing with active flashing red lights and a lowering gate. The driver’s vehicle is fully past the crossing line but not yet across the tracks when the lights begin flashing. Traffic ahead has stopped, preventing the driver from clearing the tracks. What is the correct action?

18. A bus driver comes on duty at 5:00 AM after 8 consecutive hours off duty. They drive from 5:00 AM to 10:00 AM (5 hours), then remain on duty for passenger services until 2:00 PM. What is the maximum additional driving time available to this driver?

19. A driver couples a tractor to a semitrailer and performs all correct coupling steps including the tug test. During the subsequent pre-trip inspection, the driver checks the fifth wheel area and notices the locking lever is in the locked position with the safety latch/clip engaged, but the fifth wheel plate sits slightly higher than expected relative to the trailer frame, and there is a gap visible between the fifth wheel plate and the trailer’s kingpin plate. What is the most likely cause and what action should the driver take?

20. What is the disqualification period for a CDL holder convicted of a second major offense, such as driving a CMV with a BAC of 0.04% or higher?

21. GCWR refers to the maximum allowable weight of a combination vehicle. What does this include?

22. What is brake lag in an air brake system?

23. You are driving an empty tractor-semitrailer (bobtail configuration) down a 6% grade at 45 MPH. Ahead, you see traffic slowing rapidly for a construction zone. You need to reduce speed quickly but safely. Comparing your stopping characteristics to a loaded tractor-semitrailer, which statement accurately describes the difference and your braking strategy?

24. During alley dock backing, you must back your tractor-semitrailer 90 degrees into a dock space from a narrow alley. You have set up at an angle and begun backing. The trailer is now at approximately 45 degrees to the alley. What steering action is needed to continue the approach?

25. When inspecting brake drums and linings during a pre-trip walk-around inspection, which condition would indicate an out-of-service defect requiring immediate repair?

26. A CDL driver is preparing to make a right turn at an intersection in a busy urban area. The driver is operating a 53-foot tractor-semitrailer. Which approach correctly accounts for off-tracking to complete the turn safely?

27. What is the maximum gross vehicle weight allowed on interstate highways without a special permit under federal regulations?

28. What emergency equipment is required to be present in every commercial motor vehicle during the pre-trip cab inspection?

29. A driver has just finished loading cargo at a warehouse dock. Before exiting the vehicle, which brake system should the driver use to secure the vehicle in the parked position?

30. When coupling a converter dolly to the first trailer in a doubles combination, what is the correct sequence after positioning the dolly behind the first trailer?

31. Which steering method is recommended for commercial motor vehicle operation to maintain smooth control and prevent over-correction?

32. When braking a CMV with air brakes on a slippery surface, which braking technique should the driver use to maintain control without causing wheel lockup?

33. A driver is preparing to conduct a pre-trip inspection on a straight truck (Class B) that has been sitting at the terminal for three weeks while the driver was on vacation. The driver notices that the annual inspection decal on the windshield shows an expiration date of 14 months ago. The driver asks the dispatcher about the decal and is told that the vehicle was inspected recently but the new decal has not been applied yet. The dispatcher provides a printed annual inspection report dated two weeks ago. What should the driver do?

34. A driver must perform an alley dock maneuver, backing a tractor-semitrailer into a dock space from a narrow alley. After the initial setup, the trailer is angled but not aligned with the dock. What should the driver do?

35. A driver is backing a tractor-trailer in a busy truck stop parking lot at night. Several drivers are watching and waiting for the space. What is the safest approach to this situation?

36. At what distance must a commercial driver dim their high beam headlights when approaching another vehicle from behind at night?

37. Which types of commercial motor vehicles are required by federal regulations to always stop at railroad-highway grade crossings?

38. What is the approximate cut-in pressure at which the governor signals the air compressor to resume building pressure?

39. A driver needs to back a tractor-semitrailer into a dock space located between two parked trailers in a narrow alley. The approach requires a 90-degree alley dock maneuver with approximately 12 feet of clearance on each side of the target dock space. What sequence of actions represents the correct approach for this complex backing maneuver?

40. A CDL applicant undergoes a DOT physical examination. During the hearing test, the examiner performs a forced whisper test. The applicant is unable to hear the forced whisper at 5 feet in either ear without assistance. However, when wearing a hearing aid, the applicant can clearly hear the forced whisper at 5 feet in the better ear. According to 49 CFR Part 391, what is the correct determination for this applicant’s medical qualification?

41. Which of the following is NOT a situation that requires drug and alcohol testing under 49 CFR Part 40?

42. What is the purpose of the Driver Vehicle Inspection Report (DVIR) as required by 49 CFR Section 396.11?

43. A driver is approaching a railroad crossing with a CMV transporting hazardous materials. The crossing has no active warning signals or gates. Which procedure should the driver follow?

44. What are the three components that make up total stopping distance for a commercial motor vehicle?

45. During a pre-trip inspection, the driver verifies that three reflective emergency triangles are present in the cab. When must these triangles be placed around the vehicle, and what is the correct placement pattern on a two-lane road?

46. How quickly should a properly functioning air brake compressor build air pressure from 85 PSI to 100 PSI with the engine at idle speed?

47. During a pre-trip inspection of a Class A tractor with air brakes, the driver measures the push rod travel on the slack adjusters. On the left front brake chamber, the push rod travels 1.25 inches when the brake is applied. On the right front brake chamber, the push rod travels 0.75 inches. Based on CVSA out-of-service criteria for drum brakes with manual slack adjusters, which analysis is correct?

48. During the engine compartment portion of a pre-trip inspection (engine off), the driver inspects the engine belts for proper condition. What is the maximum acceptable belt deflection (slack) when pressing on the belt midway between pulleys?

49. A CDL driver is operating a tractor-semitrailer on a four-lane interstate highway at 60 mph. The driver needs to merge left to pass a slower vehicle but notices a car in the left lane approximately 5 seconds behind. The combination vehicle is 65 feet long. Which action should the driver take?

50. A CDL driver is involved in a non-fatal accident where another vehicle rear-ended the CMV at a stop sign. The CDL driver received no citation. The driver’s carrier requires post-accident drug testing. Which analysis determines whether testing is required under 49 CFR Part 40?