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Drivers who want to drive combination vehicles must pass the combination vehicles test. The Hawaii CDL combination test consists of 20 questions, and you'll need at least 16 correct answers to pass (80%). The test covers the combination vehicles section of the Hawaii CDL Manual. Take this practice test now to prepare for the actual HI CDL combination test!
1. When backing a trailer, you should:
turn the steering wheel toward the direction you want to go.
try to position your vehicle so you can back on a curved path.
turn the steering wheel in the opposite direction of the turn.
2. When inspecting the cargo, make sure it is:
not overloaded.
piled up.
secured properly for the first 50 miles after beginning a trip.
3. Which of the following is not a reason for covering cargo?
To protect people from spilled cargo
To prevent other drivers from looking at the cargo
To protect the cargo from weather
4. During a walk around inspection of a combination vehicle, drivers should check that:
all locking pins are present and locked in place.
the glide plate is securely mounted to the trailer frame.
All of the above.
5. On a tractor-trailer equipped with a trailer brake hand valve, the hand valve can be used to:
keep from rolling back.
prevent movement of cargo.
hold compressed air.
6. Which of these is NOT part of the basic method for shifting up?
Accelerate while pressing the clutch and turn toward the driver's side.
Push in the clutch and shift to the higher gear at the same time.
Release the accelerator, push in the clutch and shift to neutral at the same time.
7. On front tires, tread should be at least:
2/32 inch
4/16 inch
4/32 inch
8. Before transporting sealed loads, you should check:
a small sample of whatever is inside.
the special transit permit.
that you don't exceed gross weight and axle weight limits.
9. "Bobtail" tractors are:
tractors without semitrailers.
tractors with a tank.
tractors with two trailers.
10. You are coupling a tractor to a semi-trailer and have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should hook up:
the safety chain.
the emergency and service air lines.
the electrical service cable.
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HI CDL Combination Test

Number of questions: 20
Correct answers to pass:16
Passing score:80%
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