Council on Law Enforcement Education and Training (CLEET) Law Enforcement Driver Practice Test

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Study for the CLEET Law Enforcement Driver Test with interactive quizzes and detailed explanations. Get the knowledge you need to pass the exam confidently!

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What characterizes rolling friction in driving?

Wheels are stationary and gripping the road
Wheels are turning but losing grip
Wheels are turning and gripping the road
Wheels are skidding on the surface

The correct answer is: Wheels are turning and gripping the road

Rolling friction is characterized by the interaction between a wheel and the surface it moves on while maintaining proper grip. When wheels are turning and gripping the road, they are in a state of rolling without slipping. This is essential for effective vehicle control, as rolling friction allows for better traction and reduces the likelihood of skidding. In this scenario, the energy loss due to friction is minimized compared to other forms of friction, making it crucial for traction and efficient driving. When wheels skid or are stationary, the interaction changes—leading to either a loss of traction or ineffective energy transfer, which does not represent the nature of rolling friction. Therefore, the definition of rolling friction in driving focuses on the wheels actively turning while maintaining the necessary grip for optimal performance on the road.