New Hampshire CDL Doubles & Triples: Uncoupling Doubles/Triples Test 2026
15 questions on the correct order to uncouple a doubles or triples combination without losing air pressure control.
This is a Pro practice test
Pro tests need a pass - and during early access the pass is FREE. Activate it and unlock every New Hampshire practice test, the Exam Simulator, and the Fix It Bank. No card required.
🎖️ Veteran or transitioning service member? CDL prep is 100% free for you. Claim your free veteran access
Already have an account? Login
About the New Hampshire CDL uncoupling test
Taking a multi-trailer set apart demands the same care as building it, and the New Hampshire CDL doubles and triples uncoupling test drills that reverse sequence. This 2026 set covers uncoupling the trailers and converter dollies in the correct order, lowering landing gear, disconnecting air and electrical lines, and securing each unit before you separate it.
Expect questions on why you park the rig in a straight line first, how to support each trailer before releasing it, and why rushing the dolly disconnection risks dropping equipment. Handling these CDL doubles and triples uncoupling steps correctly protects the load, the equipment, and everyone around you on a New Hampshire yard.
Since the exact uncoupling order and cautions can differ, verify them in your New Hampshire Commercial Driver License Manual rather than guessing. Practice this doubles and triples uncoupling set until the sequence never slips, and you will move confidently toward your New Hampshire T endorsement.
Every question traces back to the New Hampshire CDL Manual - skim the right-of-way and signs chapters before your retake.
-
All state tests unlocked
-
Exam Simulator
-
English + Spanish
-
Fix It Bank
Restart your test?
Are you sure you want to restart your test? Your test progress will be lost.
🎓 Exam Mode - just like the real thing
- ⏱ 11-minute timer, same as your DMV
- 🙈 No hints, no instant feedback
- 🔀 Questions come in random order
- ❌ More than 3 mistakes ends the exam - like the real one
- 💾 Your practice progress on this test stays saved

