Our Written Practice Tests

By using our practice tests, you will learn all of the major points in terms of CDL knowledge that you will have to know in order to get 80% or higher on your test.

DMV Questions and Answers

CDL Permits Let us guide you through the process of obtaining DMV and Commercial Drivers License CDL.Using our practice test you will easily pass the required DMV and CDL tests before being issued your Driver License.

DMV Permit Practice Test

Our DMV Practice tests each question has multiple choice possible answers, select what you believe to be the Best answer by clicking on the button beside that answer. You may change your answer by simply clicking on a different button.
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» Combination Vehicle Test Online Combination Vehicles Written Practice Tests.
» General Knowledge Test Online General Knowledge Written Practice Tests.
» Air Brakes Practice Test Online Air Brakes Written Practice Tests.
Air Brakes Sample Written Practice test
Using our Air Brakes Written Practice test, you will learn all of the major points in terms of CDL knowledge that you will have to know in order to get 80% or higher on your test.

General Knowledge Practice Test | Air Brakes Practice Test | Combination Vehicles Practice Test

Our Air Brakes Written Practice Tests for all 50 States Commercial Drivers License
Air Brakes Written Practice test by answering the sample questions below. When you are finished, click the KNOWLEDGE BUTTON to reveal the correct answers.The questions below will not appear on the actual test.
  1. Brake drums

    separate
  2. When the low pressure warning is activated,you should....

    separate
  3. When the safety valve releases air it means that...

    separate
  4. In a single vehicle with a fully charged air system , air pressure loss (after an initial drop) should be loss than...

    separate
  5. The service brake system....

    separate
  6. Your vehicle's single brake system needs adjustment if...

    separate
  7. Some air brake system have an alcohol evaporator which helps ....

    separate
  8. Air tanks should be drained.....

    separate
  9. The safety valve in the air compressor tank is set to open at...

    separate
  10. Compressed air is stored...


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CDL ANSWERS

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