At the rear of the last trailer, which valves do you open to check air flow?
Right! Open each rear shut-off in turn and listen for escaping air. 📖 p. 7-4
From Section 7 of the Hawaii Commercial Driver License Manual
Hawaii CDL Doubles and Triples Practice Test
Who takes it: Class A, for the T endorsement.
Pulling two or three trailers. 20 questions, 16 right to pass (80%).
Practice Doubles and Triples
- 10questions a round
- 1manual section
Take the Doubles and Triples test
- 20questions
- 16correct to pass
- –no test taken yet
A Doubles and Triples question to try
Tap an answer to see if you’re right, and the page
Where it is in the Hawaii Commercial Driver License Manual
Your score on each part fills in as you study.
- Manual section 7
- Doubles and triplesNot practiced yetp. 7-1 to 7-4
The manual says to also study Sections 2, 5 and 6 for this test, so when a practice test needs more questions than this section has, it adds some from those sections.
Hawaii answers about this test
Practice material, not the official test: check every answer in your state's current handbook. Disclaimer · How the rounds work · DMV
All Hawaii CDL tests
- General Knowledge
- Combination Vehicles
- Air Brakes
- Doubles and TriplesYou're here
- Passenger
- School Bus
- Tank Vehicles
- Hazardous Materials
- Which tests do you need?Pick what you'll drive and get your Hawaii CDL plan, in order.