Home › Practice › Combination Vehicles › Question 34

Combination Vehicles Practice Question 34

Required for Class ACombination Vehicles · Question 34

Tracks of the tractor and trailer in a tight right turn should be:

• AIdentical
• BDifferent — trailer cuts inside; swing wide
• CThe trailer cuts wider than the tractor
• DBoth go straight

Correct answer: B. Different — trailer cuts inside; swing wide

Why: Trailer wheels follow a tighter path. To clear curbs and obstacles, swing the tractor wide before pivoting through the turn.

How this question fits the Combination test

Articulated vehicles fail in unique ways: trailer swing under braking, rearward amplification under steering, and jackknife under loss of traction. Combination Vehicle knowledge is required for any Class A applicant under 49 CFR 383.111.

Study technique for this topic

Walk through the coupling sequence verbally until it's second nature. Know the safe-rolling rearward amplification factor, the difference between trailer service brakes and parking brakes, and what creates the conditions for a tractor jackknife.

Related Combination practice questions

• Q55. A trailer with sliding tandems lets you:
• Q4. When coupling, you should approach the trailer:
• Q17. Cargo loaded too far to one side will:
• Q30. Stopping distance for a fully loaded combination vehicle is:
• Q44. Glad hand color coding is required because:

Continue your CDL preparation

The Combination Vehicles portion of the CDL knowledge exam covers more than this single question. Use this site's full Combination Vehicles bank to drill every topic, then test yourself with one of our state-specific practice sets to confirm you are ready for the actual DMV exam in your state. Always check your state's CDL handbook for any local addenda before the test day.

If you are still building your overall CDL foundation, start with the General Knowledge bank — every CDL applicant must pass it — and then work outward to the endorsements you plan to add.