Question

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

1) Road conditions
2) Weight of the vehicle
3) Brake performance
4) Tire pressure
5) None of the above

Answer 1

The correct answer is '5) None of the above' because all the listed factors including road conditions, weight of the vehicle, brake performance, and tire pressure are crucial in determining safe driving speed on a downgrade.

Step-by-step explanation:

The question asks which factor is NOT used to determine your safe speed when going down a long steep downgrade. The options are:

1. Road conditions
2. Weight of the vehicle
3. Brake performance
4. Tire pressure
5. None of the above

All the options listed are critical factors when determining safe speed on a downgrade. Road conditions affect traction, the weight of the vehicle affects the momentum and stopping distance, brake performance is directly related to stopping capability, and tire pressure affects the vehicle handling and braking. Therefore, none of these factors can be ignored without compromising safety.

The correct answer is: 5) None of the above.