2025 Idaho Cdl Bus - Test 1
The following questions are from real Idaho CDL practice tests. After selecting the answer, you can see the explanation. After confirming, click "Next" to jump to the next question.
ADVERTISEMENT
1. What tells you how much pressure is in your vehicle's air tanks?
The supply pressure gauge
The ABS malfunction lamp
The tractor protection valve
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