#### Highway Engineering

1

If N is the net difference of grades, S is the minimum overtaken sight distance in metres, the length (L) of a summit curve, is

A. (NS)/(4)
B. (NS^2)/(4)
C. (NS^2)/(4.8)
D. (NS^2)/(9.6)
E. (S^2)/(10)

2

If N is the algebraic difference of grades, S is the minimum sight distance in metres, the length (L) of a summit curve is

A. (N S)/(4)
B. (N S^2)/(4)
C. (N ^2 S)/(4)
D. ((N S)^2)/(4)
E. none of these.

3

If N is the algebraic difference of grades, S is the head light beam distance in metres, the length (L) of a valley curve, is

A. (NS^2)/(4)
B. (NS^2)/(6)
C. (NS^2)/(9.6)
D. (NS^2)/(4.8)
E. (NS^2)/(10)

4

If L is the length of a moving vehicle and R is the radius of curve, the extra mechanical width b to be provided on horizontal curves,

A. L/R
B. (L)/(2R)
C. (L^2)/(2R)
D. (L^3)/(2R)
E. (L)/(3R)

5

If W is the weight of a vehicle negotiating an upgrade 1 : S along a track having co-efficient of resistance mu, the tractive force T is given by

A. T = (P)/(mu + S)
B. P = (T)/(mu + S)
C. S= (P)/(mu + T)
D. mu = (P)/(S + T)
E. mu = (S)/(P + T)