About
Blog
Log in
Home
California
Diagnostic Test
CDL Diagnostic Test
Questions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Practice by topic
General Knowledge
HazMat
Passenger Vehicles
Air Brakes
Combination Vehicles
Doubles/ Triples Trailers
Tanker Vehicles
School Bus
Pre-Trip Inspection
Full practice test
General Knowledge
HazMat
Passenger Vehicles
Air Brakes
Combination Vehicles
Doubles/ Triples Trailers
Tanker Vehicles
School Bus
Pre-Trip Inspection
Questions 1 :
book icon
Level
Star
Star
Star
Submit
x
keyboard
Bookmark
Like
Report a Mistake
Check
Questions
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Practice by topic
General Knowledge
HazMat
Passenger Vehicles
Air Brakes
Combination Vehicles
Doubles/ Triples Trailers
Tanker Vehicles
School Bus
Pre-Trip Inspection
Full practice test
General Knowledge
HazMat
Passenger Vehicles
Air Brakes
Combination Vehicles
Doubles/ Triples Trailers
Tanker Vehicles
School Bus
Pre-Trip Inspection
Download our CDL App
to practice anytime, anywhere!
No Internet Required
Instant Feedback
User-friendly
1600+ Unique Questions
No registration required
State-specific questions
Scroll to top
California
