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.
The NH-CDL exam has 50 questions and runs 1 hour.
These 10 free NH-CDL questions are organized by exam domain, so you can see how each part of the New Hampshire CDL Permit Test blueprint is tested. Reveal the answer and explanation under each question.
A driver will operate a tractor with a GCWR of 30,000 lb. The trailer GVWR is 12,000 lb, although the combination's actual loaded weight today is 23,000 lb. How should the vehicle be classified for CDL purposes?
Correct answer: B - Class A, because the ratings meet both the 26,001-lb and 10,000-lb tests
A 60-foot combination is traveling 55 mph in steady rain. The CDL baseline is one second per 10 feet of vehicle length, plus one second over 40 mph, with more space required for rain. What time gap is appropriate?
Correct answer: C - More than 7 seconds
At highway speed, the left-front tire suddenly blows. The truck pulls left, but the driver still has steering control. The driver's first controlled response should be to:
Correct answer: D - Grip the wheel, stay off the brake initially, and maintain the vehicle's path
A 23-foot machine weighs 18,000 lb. Under the general rule, it needs at least one tiedown per 10 feet or fraction, at least two tiedowns, and aggregate working load limit (WLL) of at least half the cargo weight. Which plan satisfies both the tiedown-count and WLL requirements?
Correct answer: C - Three tiedowns rated 3,200 lb WLL each
A driver has selected a 35-mph safe speed and a low gear before a long downgrade. The brakes are cool. When speed reaches 35 mph, which technique matches proper snub braking?
Correct answer: B - Brake firmly to about 30 mph for roughly three seconds, release, and repeat at 35 mph
A combination vehicle's air system is fully charged. With the engine off, parking brakes released, and service brake not applied, pressure drops 2.6 psi in one minute. With the service brake fully applied, it drops 4.3 psi in one minute after the initial loss. How should the results be interpreted?
Correct answer: D - The static test passes, but the applied-leakage test fails
During a low-air warning test, the vehicle manufacturer's specification says the warning must activate before pressure falls below 60 psi. The warning first sounds at 57 psi. What does this result establish?
Correct answer: A - It fails because the manufacturer's higher 60-psi value controls
After a tug test, a driver inspects a tractor-trailer coupling. The trailer apron is flat on the fifth wheel, there is no visible gap, and the release arm is locked. Which remaining finding makes the coupling unacceptable?
Correct answer: C - The locking jaws are closed around the kingpin head
While moving slowly in a yard, the red trailer air line separates. Trailer tank pressure begins to fall, the trailer brakes apply, and the tractor-protection valve closes. This pattern most strongly indicates that:
Correct answer: A - The emergency/supply line has failed and the system is protecting tractor air
A doubles combination will use a 24,000-lb semitrailer and a 15,000-lb semitrailer. Choose the safest order from front to rear.
Correct answer: D - Tractor, 24,000-lb trailer, converter dolly, 15,000-lb trailer
The NH-CDL exam also covers these domains. Drill them in the full free practice test:
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