2025 California Cdl Air Brakes - Test 2
The following questions are from real California CDL practice tests. After selecting the answer, you can see the explanation. After confirming, click "Next" to jump to the next question.
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1. When a brake pedal is pressed and the S-cam is turned, the S-cam:
Presses the brake shoes against the inside of the brake drum.
Tightens the brake drum onto the axle.
Presses the brake lining against the wheel.
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Key Data
Number of Tests: 18
Number of Question: 25
Passing Score: 20
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