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 MT-CDL questions are organized by exam domain, so you can see how each part of the Montana CDL Permit Test blueprint is tested. Reveal the answer and explanation under each question.
At 60 mph, the left steering tire on a loaded tractor-semitrailer suddenly blows and the vehicle pulls left. Which immediate action best preserves control?
Correct answer: D - Hold the steering wheel firmly and stay off the brakes until control is stabilized
On a dry highway, a driver is operating a 70-foot combination at 55 mph. Under the standard CDL following-distance rule, what minimum time gap should the driver maintain?
Correct answer: A - 8 seconds
A 14,000-pound machine on a flatbed is secured with tie-downs whose combined working load limit is 6,000 pounds. The number of tie-downs and anchor locations are otherwise adequate. What must be done before departure?
Correct answer: C - Add securement until the aggregate working load limit reaches at least 7,000 pounds
During a static air-leakage test on a fully charged tractor-semitrailer, the engine is off, the parking brakes are released, and the service brake is not applied. After the gauges stabilize, pressure drops 2 psi in one minute. How should this result be judged?
Correct answer: B - Pass; the loss is less than 3 psi in one minute
A tug test holds after a tractor couples to a semitrailer. The visual inspection, however, shows a gap between the upper plate and fifth wheel, with the locking jaws around the kingpin head rather than its shank. What is the proper response?
Correct answer: C - Uncouple and recouple until there is no gap and the jaws surround the kingpin shank
A passenger bus approaches a railroad crossing under a green highway traffic signal. Traffic beyond the tracks is stopped, leaving enough room for only half the bus. What should the driver do?
Correct answer: D - Remain before the crossing until the entire bus can clear the tracks
After coupling a set of doubles, air reaches the first trailer but the rear trailer will not charge. Inspection finds the shutoff valves at the rear of both trailers closed. Which valve arrangement is correct for travel?
Correct answer: A - Open the first trailer's rear shutoff valves and keep the last trailer's rear valves closed
A half-full baffled cargo tank is approaching a sharp exit ramp. Which fact should have the greatest influence on the driver's speed choice?
Correct answer: C - Baffles reduce forward-and-back surge, but side-to-side surge can still roll the tank
A shipping clerk prepares a hazardous-material description for gasoline in Packing Group II. Which sequence places the four basic description elements in the required order?
Correct answer: B - UN1203, Gasoline, 3, PG II
A Montana school-bus driver activates the amber warning lamps 200 feet before an approved rural stop outside a city or town. What correction is needed on the next run?
Correct answer: A - Begin the amber warning about 500 feet before the stop
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