Question

Which of these statements about downshifting for a long, steep downhill grade is true?

A) It reduces the risk of engine overheating.
B) It minimizes fuel consumption.
C) It increases braking efficiency.
D) It improves tire traction.

Answer 1

Downshifting for a long, steep downhill grade provides benefits such as reducing the risk of engine overheating, increasing braking efficiency, and improving tire traction.

Step-by-step explanation:

When descending a long, steep downhill grade, downshifting has several benefits:

1. It reduces the risk of engine overheating by allowing the engine to operate at lower RPMs, which reduces the load on the engine and prevents it from working too hard.
2. It increases braking efficiency by utilizing the engine's resistance to slow down the vehicle. Engaging a lower gear helps to control the speed and prevent the brakes from overheating.
3. It improves tire traction by utilizing the engine's resistance to keep the vehicle from accelerating too much. This can be helpful in maintaining control and stability on a steep downhill grade.