The real Louisiana knowledge test is the DMV exam used for a learner permit. This page contains one fixed 20 question slice of the full free 180 question bank, with an explanation after each answer.
Sample question from test 6
safe-driving
Why is speed difficult to judge while cornering?
- Cornering force depends on speed squared
- Cornering force stays the same at every speed
- A curve removes the need to watch for roadside obstacles
- Advisory signs guarantee the same safe speed in every condition
Answer: Cornering force depends on speed squared. Cornering force rises with the square of speed, so a small increase can produce a much larger demand on the tires. Doubling speed generates four times the cornering force, which helps explain why a bend can become unsafe quickly. The force does not stay constant, and a curve still requires attention to traffic, visibility, and roadside hazards. Advisory signs cannot guarantee one safe speed in rain, darkness, or poor traction. Slow before the bend, keep a steady path, and avoid entering faster than the available grip allows.