Civil Engineering  Highway Engineering
Exercise :: Highway Engineering  Section 5
31. 
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 
A. 
3 R sin Δ/3 sin 2α  B. 
3 R sin Δ/2 sin 3α  C. 
3 R sin Δ/3 sin α/2  D. 
3 R sin 2Δ sin α 
Answer: Option A
Explanation:

32. 
Superelevation on roads in snow bound areas, should generally not exceed 
Answer: Option D
Explanation:

33. 
If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm^{2}, spacing of 10 mm tie bars for the longitudinal joint, is 
Answer: Option C
Explanation:

34. 
Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm^{2} at 28 days, are 
Answer: Option B
Explanation:

35. 
Three points, A, B and C 500 m apart on a straight road have 500 m, 505 m and 510 m as their reduced levels. The road is said to have 
A. 
no gradient between A and C  B. 
a positive gradient between A and C  C. 
a negative gradient between A and C  D. 
a negative gradient between A and B  E. 
a positive gradient between A and B followed by a negative gradient between B to C. 
Answer: Option E
Explanation:
