[amp_mcq option1=”3%” option2=”4%” option3=”5%” option4=”6%” correct=”option3″]<\/p>\n
The correct answer is $\\boxed{\\text{B. 4%}}$.<\/p>\n
The compensated grade is the maximum allowable grade for a horizontal curve. It is calculated by taking the ruling gradient and multiplying it by a factor that depends on the radius of the curve. The factor is called the cant deficiency factor, and it is equal to $1 – \\frac{r}{200}$, where $r$ is the radius of the curve in meters.<\/p>\n
In this case, the radius of the curve is 76 m, so the cant deficiency factor is $1 – \\frac{76}{200} = 0.88$. The compensated grade is therefore equal to $1 \\text{ in } 20 \\times 0.88 = 4\\%$.<\/p>\n
The other options are incorrect because they do not take into account the radius of the curve.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”3%” option2=”4%” option3=”5%” option4=”6%” correct=”option3″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[652],"tags":[],"class_list":["post-7947","post","type-post","status-publish","format-standard","hentry","category-highway-engineering","no-featured-image-padding"],"yoast_head":"\n