2025 North Dakota Cdl Combination - Test 1
The following questions are from real North Dakota CDL practice tests. After selecting the answer, you can see the explanation. After confirming, click "Next" to jump to the next question.
ADVERTISEMENT
1. Before a drive, ensure that air flows to all trailers by:
Opening the rear shut-off valves and listening for escaping air.
Closing the rear shut-off valves and listening for escaping air.
Disconnecting air supply lines and listening for escaping air.
Rolling each trailer down a hill and testing the brakes.
ADVERTISEMENT
Key Data
Number of Tests: 18
Number of Question: 20
Passing Score: 16
Free Useful Tools
Dmv Near Me 
Auto Loan Calculator 
Auto Insurance Calculator 
Vehicles Buying Advice Progress
0 Incorrect
0 Correct
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Rate This Test
Please rate this test