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Drivers who want to drive combination vehicles must pass the combination vehicles test. The New Hampshire 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 New Hampshire CDL Manual. Take this practice test now to prepare for the actual NH CDL combination test!
1. What can cause poor traction?
Too much weight on the steering axle.
Too little weight on the driving axles.
Overloading the truck.
All of the above.
2. Before entering an intersection, make sure that:
accelerate smoothly and change gears as necessary.
there is sufficient space to clear it.
there's enough room to get at least halfway across.
That there is enough room for the rear of your vehicle to clear the stop line on your side.
3. When transporting cargo, cargo securement must be checked within the first _____ miles of a trip and every _____ miles after.
50; 150
100; 150
50; 250
150; 250
4. When you are uncoupling a loaded trailer, lower the landing gear until:
makes contact with the ground, and leave the trailer off the fifth wheel.
the tractor frame is under the trailer.
it makes firm contact with the ground.
the pressure in the system is above 55 psi.
5. Foundation brakes are used:
only with the rear wheels.
at each wheel.
only with the right wheels.
only with the front wheels.
6. The crack-the-whip effect:
can turn the trailer over.
can cause problems for drivers coming toward you.
can cause a vehicle to tilt.
the ends of some vehicles to drag.
7. If you smell exhaust fumes in the cab, you should:
wait for the next stop, then inspect your vehicle.
remember to conduct a post-trip inspection.
open the windows.
stop immediately.
8. To stop a trailer skid, you should:
release the brakes to get traction back.
use the brakes to slow down.
use the trailer hand brake to straighten out the rig.
countersteer to get traction back.
9. If your vehicle gets stuck on the railroad tracks, you should:
check for identifiable landmarks to give the location of the crossing.
get out of your vehicle and away from the tracks.
gather up your paperwork and shipping papers while calling 911, then get out of the vehicle.
All of the above.
10. If a worker is close to the roadway in a work zone, you should:
drive at the posted speed limit.
drive on the shoulder.
reduce your speed below the posted speed limit.
pull off the road and stop.
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NH CDL Combination Test

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