Q. If d is the thickness of a concrete pavement, the equivalent radius b of resisting section for an interior loading, is

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

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Q. 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

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Q. If h1 is the height of the driver's eye and h2 is the height of an obstruction above road surface, then, for a minimum sight distance S, the length of the vertical curve should be greater than

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Q. An upgrade g1% is followed by a downgrade g2%. The equation of the parabolic curve of length L to be introduced, is given by

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Q. If L is the length of vehicles in metres, C is the clear distance between two consecutive vehicles (stopping sight distance), V is the speed of vehicles in km/hour, the maximum number N of vehicles/hour, is

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Q. The maximum distance of the apex of a vertical curve of length L from the point of intersection of two grades + g1%, and - g2% (g1 > g2), is

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Q. If the rate of change of grade permitted along a vertical curve is r and total change of grade is g%, the length L of the curve to be provided, is

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Q. If P is the number of vehicles per day at last census, r is the increase in traffic and n is the number of years passed after last census, number of vehicles A per day for design, is

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Q. If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is

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Q. The standard equation of a cubical spiral transition curve provided on roads, is

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Q. If At is the area of steel cross-section, t is working stress, L is width of road and W is weight of slab per square metre, the spacing of the tie bars for a longitudinal joint, is

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Q. The safe length L of a valley curve for night travel is

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Q. If V is the velocity in km.p.h., t the brake reaction time in seconds and η the efficiency of the brakes, the stopping distance S of the vehicle, is

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Q. If R is the radius of a main circular curve, Δ is the angle of deflection and α is the polar deflection angle of any point, its radial distance is

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Q. The safe stopping sight distance D, may be computed from the equation

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Q. The standard equation of a cubic parabolic transition curve provided on roads, is

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Q. If E is the modulus of elasticity of the concrete in kg/cm², d is the slab thickness in cm, is the Poisson's ratio for the concrete, k is the sub-grade modulus kg/cm³, the radius r of relative stiffness in cm,

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Q. Pick up the correct statement from the following:

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Q. Deviation of the alignment of a trace cut may be permitted in areas involving

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