NC CDL Practice Test (2023) - FREE CDL Knowledge Test

1. You should downshift in advance before:

crossing a bridge.
entering the highway.
starting down a hill or entering a curve.
entering a tunnel.

2. Overloading can have bad effects on all of the following except:

3. Most heavy trucks with manual transmissions require ____ to change gears.

4. Total stopping distance equals:

Braking distance + viewing distance
Perception distance + reaction distance + braking distance
Perception distance + braking distance
Reaction distance - following distance + braking distance

5. Shaded parts of the road:

will melt before open areas.
will remain icy and slippery after other areas have melted.
usually are not slippery.
usually don't freeze.

6. Key suspension system parts include:

7. Vehicles must be equipped with emergency equipment, including:

2 battery-operated flashlights.
spare electrical fuses.
horn.
a safety valve.

8. Backing is dangerous because:

cargo may fall out.
you cannot see everything behind your vehicle.
you need to back toward the passenger driver side so you can see.
you have to turn the steering wheel toward the direction you want to go.

9. The weight of a truck:

has no effect on stopping distance.
has an impact on stopping distance.
is not as important as the vehicle's center of gravity in determining stopping distance.
None of the above.

10. Which of the following statements is FALSE?

If a tire blows, you should put the brakes on hard to stop quickly.
The other statements are all TRUE.
ABS (Antilock Braking Systems) only activate when wheels are about to lock.
You can almost always turn to miss an obstacle more quickly than you can stop.

NORTH CAROLINA CDL PRACTICE TEST - GENERAL KNOWLEDGE