Texas DMV Written Driving Practice Test

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Study for the TX DMV Written Driving Test.. Study with flashcards and multiple-choice questions. With over 500 questions. Practice the signs and driving rules. Updated for 2024. Get ready for your driving test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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How do vehicle brakes work?

By redirecting air flow
Through the application of hydraulic pressure
Through the introduction of electricity
Through the release of brake fluid

The correct answer is: Through the application of hydraulic pressure

Vehicle brakes work through the application of hydraulic pressure. When the brake pedal is pressed, it activates a piston in the brake master cylinder, which then sends hydraulic fluid through the brake lines to the brake calipers. This creates pressure on the brake pads, causing them to press against the rotors, which in turn slows down the wheels and stops the vehicle. Options A, C, and D are incorrect because they involve methods that do not directly relate to the mechanics of braking. Air flow redirection does not directly impact the brakes, while the introduction of electricity and release of brake fluid are not the primary means by which vehicle brakes work. It is important to remember that it is the creation and application of hydraulic pressure that allows for effective and efficient braking.