How does carrying unnecessary luggage or an empty roof rack affect a vehicle performance?
Answer and explanation
Correct answer: D. Increases aerodynamic drag and vehicle weight, raising fuel consumption
- Step 1: Impact of roof racks and excess weight. Step 2. Unused roof racks disrupt aerodynamics, increasing drag and raising fuel consumption by up to 10-15%. Answer: Increases aerodynamic drag and vehicle weight, raising fuel consumption. Why not the others: Roof loads raise center of gravity worsening stability; tire wear is increased; aquaplaning risk is unchanged or worsened.
Practise more Driving Safety, Emergency Response and Vehicle Operation.
Free questions with an explanation for every one, and full timed Vozački ispit (Driving Theory Test) - Croatia mock tests.
More Driving Safety, Emergency Response and Vehicle Operation questions
- What two main components constitute the total stopping distance of a motor vehicle?
- How does doubling the travel speed affect the braking distance of a passenger vehicle?
- What is the primary function of an Anti-lock Braking System (ABS) during emergency braking?
- What sensation is normal for the driver when ABS activates during heavy emergency braking?
- What phenomenon occurs when tires lose contact with the road due to a water layer?
- What is the correct driver reaction when experiencing sudden aquaplaning?