In which position should you NOT apply the parking brake?

In which position should you NOT apply the parking brake?

• A. during heavy rain
• B. on a steep incline
• C. if the brakes are very hot
• D. when the parking brake is engaged

Answer: (C)

When brakes are very hot, you should avoid using the parking brake because heat can cause the components to stick, warp, or glaze as they cool. Applying the parking brake to hot brake shoes or drums can fuse parts together or cause the drum to distort, making the brake hard to release or leading to binding wheels. Let the brakes cool before engaging the parking brake. The other scenarios describe common times you might need to hold or secure the vehicle, but the heat risk is why this action is not advised.