Texas CDL — General Knowledge Practice Test
The Texas CDL — General Knowledge knowledge test has ~50 questions; you need ~40 correct (80%) to pass.
Or take one of 10 full-length practice tests
50 questions · pass with 40 correct. You get instant feedback and an explanation after every answer.
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Texas CDL — General Knowledge practice tests
10 full-length practice tests, each with 50 questions and a pass mark of 40, like the real test. You see the answers and explanations after you grade.
- Test 1
50 questions · pass with 40
When you pull over for a roadside stop, where should the vehicle end up?
- Test 2
50 questions · pass with 40
You have just finished a turn in a truck whose signals do not shut off by themselves. You should:
- Test 3
50 questions · pass with 40
In an hour, roughly how much alcohol can the liver dispose of?
- Test 4
50 questions · pass with 40
What can happen to a commercial driver who texts or uses a hand-held phone while driving?
- Test 5
50 questions · pass with 40
How many driver licenses may a commercial driver legally hold?
- Test 6
50 questions · pass with 40
Some public crossings are marked with signs telling drivers that trains do not blow a horn there. The lesson for a commercial driver is:
- Test 7
50 questions · pass with 40
Hydroplaning, where the tires ride on a film of water instead of the road, is most likely when:
- Test 8
50 questions · pass with 40
Because your vehicle has ABS, you can:
- Test 9
50 questions · pass with 40
You are stopped on the shoulder of a divided highway. Your three warning devices belong at:
- Test 10
50 questions · pass with 40
When the load limit on a farm- or ranch-to-market road is lowered, drivers find out because: