Q.

The equation of parabolic camber is given by ___________

A. y=x/a
B. y=x2/a
C. y=x3/a
D. y=ax2
Answer» B. y=x2/a
Explanation: the general equation is expressed as y=x2/a, where a=nw/2 for a pavement width of w and cross slope of 1 in n.
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