Highway Engineering
Study the following statements regarding creep. i) Creep is greater on curves than on tangent railway track, ii) Creep in new rails is more than that in old rails, iii) Creep is more on steep gradients than on level track. The correct answer is

(i), (ii) and (iii)
only (i)
(ii) and (iii)
(i)and(ii)

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Highway Engineering
For a constant value of coefficient of lateral friction, the value of required super-elevation increases with

decrease in both speed and radius of curve
decrease in speed and with increase in radius of curve
increase in speed and with decrease in radius of curve
increase in both speed and radius of curve

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