10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free ND-CDL questions are organized by exam domain, so you can see how each part of the North Dakota CDL Permit Test blueprint is tested. Reveal the answer and explanation under each question.
A property-carrying driver came on duty at 6:00 a.m. after 10 consecutive hours off. By 2:30 p.m., the driver has accumulated 8 hours of driving and has just completed a 30-minute on-duty-not-driving interruption. Dispatch offers a two-hour run that will end at 4:30 p.m. No exception applies. Which decision is correct?
Correct answer: C - Accept; the run ends with 10 driving hours and before the 14-hour cutoff
At highway speed, a steer tire blows out and the truck immediately pulls toward the failed tire. Which response sequence gives the driver the best chance of maintaining control?
Correct answer: A - Grip the wheel, stay off the brake at first, hold a straight path, then slow and pull off
On an icy curve, a driver turns the steering wheel left, but the tractor continues almost straight. The front tires have lost traction. What is the first corrective action?
Correct answer: D - Release the input causing the skid, let the front tires regain traction, then steer
A 21-foot steel beam is not blocked against forward movement, and no commodity-specific rule changes the general tiedown minimum. Every tiedown is rated and attached properly. How many tiedowns are required at minimum?
Correct answer: B - 4
During a pre-trip inspection, the major tread grooves measure 5/32 inch on the left steering tire, 3/32 inch on the right steering tire, and 3/32 inch on both drive tires. No other tire defects are present. The result that makes the vehicle unacceptable for service is:
Correct answer: B - The right steering tire, because a steering-axle tire needs at least 4/32 inch of tread
On a long downgrade, a driver is already in a low gear and using snub braking. Each brake application now requires more pressure, and the truck no longer slows back to the chosen safe speed. An escape ramp is immediately ahead. Which choice gives the greatest chance of retaining control?
Correct answer: D - Enter the escape ramp while the vehicle can still be steered
At a hot-weather tire check, all tires are sound, but their pressures are higher than the correct cold readings recorded before departure. How should the driver handle the pressure increase?
Correct answer: A - Do not bleed them; heat raises pressure, and bleeding leaves them low after cooling
A combination vehicle is fully charged, its wheels are chocked, the engine is off, the parking brakes and trailer supply are released, and the foot brake is held after the initial pressure drop stabilizes. Air pressure falls from 120 psi to 117 psi in one minute. How should this result be interpreted?
Correct answer: C - The system passes because a 3-psi applied loss is within the 4-psi limit
While driving, the primary air-pressure gauge falls rapidly to 58 psi and the low-air warning activates; the secondary gauge still reads about 100 psi. What is the appropriate response?
Correct answer: D - Make a controlled stop as soon as safely possible and have the defect repaired
An air-braked tractor with functioning ABS must make an emergency stop on wet pavement. The driver feels the brake pedal pulse as ABS cycles. Which braking technique is correct?
Correct answer: A - Hold firm pressure and steer as needed; do not pump the brakes
The ND-CDL exam also covers these domains. Drill them in the full free practice test:
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