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)`