Answer :
Final Answer:
Using the trailer hand valve before the brake pedal to prevent tractor skids in normal driving should not be done. This practice may lead to an increased risk of skidding and compromises the stability of the vehicle. (option a)
Explanation:
When driving, especially in normal conditions, the recommended and standard practice is to utilize the brake pedal for braking. The trailer hand valve is designed for specific situations such as parking or emergency braking and is not intended for regular driving use. Engaging the trailer hand valve before the brake pedal can disrupt the balanced braking system designed for controlled and safe deceleration during normal driving.
In a standard braking system, the brake pedal controls both the tractor and trailer brakes simultaneously, ensuring a synchronized and coordinated braking action. Introducing the trailer hand valve prematurely can upset this balance, potentially causing the trailer to skid. Skidding occurs when the wheels lock up, leading to a loss of traction and control. Therefore, to maintain optimal stability and prevent skidding during normal driving, it is essential to rely on the standard braking procedure by using the brake pedal as intended. This approach allows for a smooth and controlled application of brakes, minimizing the risk of skidding and ensuring safe driving conditions.(option a)
