Civil Engineering - UPSC Civil Service Exam Questions

The coordinates of two end-points A and B traverse line AB are X_A = 1000.00 m, Y_A = 1000.00 m X_B = 2000.00 m, Y_B = 1000.00 m The bearing of the line AB will be

Consider the following statements relating to compressible flow :
1. In a contracting conduit, sonic velocity is reached in the minimum cross-sectional area.
2. In a contracting conduit, supersonic velocities are reached only in the expanding section downstream from the minimum section.
3. An expansion shockwave is physically possible and can be exhibited.
4. In the Laval nozzle it is possible to obtain a velocity greater than the velocity of sound in the expanding section of nozzle.
Of these statements :

Consider the following factors :
1. Elevation
2. Temperature
3. Gradient
4. Trip length.
For finding the runway length, which of these are taken into reckoning ?

Which one of the following is the reaction of the cantilever at B as shown in the figure ?

If a road surface is adequately superelevated on horizontal curve, which one of the following is the proper distribution of pressure on the vehicle wheels ?