Ace Your DMV Written Test with our Guaranteed Cheat Sheet.
Cheat Sheet

North Carolina CDL Permit Test - Combination

Number of questions: 25
Passing score: 20
Directions: All applicants who are applying for a Class A CDL should be prepared to take the Combination test. This test covers information found in Section 6 of the Commercial Driver License Manual. Section 6 provides the information needed to safely operate tractor-trailers, doubles, triples, and straight trucks with trailers. The test is made up of 25 multiple-choice questions, and applicants will need to correctly answer a minimum of 20 questions to pass. The Combination test is not a replacement for the Double/Triple endorsement test.
You have made error so far
Passing grade —
5 or fewer errors
advertising
1.
Older trailers are not equipped with spring brakes. This means that if the air supply for a vehicle's air braking system leaks away:
The trailer will stop normally.
The trailer will not have brakes.
The trailer will speed up.
2.
Which type of vehicle is most prone to the “crack-the-whip” effect?
A five-axle tractor semi-trailer
A three-axle tractor semi-trailer
A bobtail tractor
A triple trailer
3.
____ are the cause of more than half of all accident-related truck driver deaths.
Truck rollovers
Motorcycles
Slippery roads
Pedestrians
4.
Trailers manufactured after ____ must be equipped with Anti-Lock Braking Systems (ABS).
1943
1998
2009
2015
5.
When you are pulling a trailer, the air supply control lever should be in its ____ position.
Emergency
Supply
Normal
6.
Emergency air lines are often coded with the color:
Green.
Orange.
Yellow.
Red.
Ace Your DMV Written Test
Get your Cheat Sheet Now!

Wait, before you go

Ace your DMV Written Test with our Guaranteed Cheat Sheet.

  • Cheat Sheets Save Time
  • Cheat Sheets pass on your first try