Arizona CDL Practice Test 2026

Practice question bank

Sample questions

1. How much distance will an air brake-equipped vehicle need to come to a complete stop if it is traveling at 55 mph under ideal driving conditions?

   • 300 feet
   • 100 feet
   • 450 feet ✓

   Vehicle Equipment & Safe Operation · Answer: C · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 5 – Air Brakes, p. 88

2. When a vehicle goes around a corner, the rear wheels:

   • Follow the same path as the front wheels.
   • Follow a different path than the front wheels. ✓
   • Should not be a concern to the driver.

   General Driving Knowledge · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 6 – Combination Vehicles, p. 93

3. When backing a truck, you should:

   • Only use the side mirrors on the driver’s side.
   • Use both side mirrors. ✓
   • Only use the side mirrors on the passenger's side.

   Sharing the Road · Answer: B · Official handbook: Texas Commercial Driver License Handbook (DL-7C), Section 2 – Driving Safely, p. 35

4. If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):

   • You can refuse to take the test without a penalty.
   • You can refuse taking the test but will be required to pay a $50 fine.
   • You will lose your CDL if you refuse to take the test. ✓

   Impaired Driving & Penalties · Answer: C · Official handbook: Texas Commercial Driver License Handbook (DL-7C), p. 13

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