USN Road Grader Practice Exam 2025 - Free Road Grader Practice Questions and Study Guide

Choosing the right grading angle is critical for maintaining road alignment and drainage. When the grading angle is appropriately set, it allows for the creation of a crown and proper slope on the roadway, ensuring that water runs off effectively. This drainage is essential for preventing water accumulation, which can lead to road deterioration, erosion, and damage over time. Additionally, maintaining proper alignment helps to ensure that vehicles can navigate the road safely, offering a smooth ride while minimizing wear and tear on both the road and the vehicles.

Optimal grading angles contribute to the structural integrity of the road surface, aiding in the prevention of potholes and uneven wear patterns that can develop when drainage is inadequate. Proper drainage also extends the lifespan of the road and significantly reduces maintenance needs over time, providing long-term benefits in both safety and cost-effectiveness. Thus, the relationship between grading angle and road alignment and drainage is fundamental to successful road grading practices.