Civil Engineering - UPSC Civil Service Exam Questions

Which one of the following is not essential to derive the formula used in constructing a synthetic unit hydrograph ?

In an aerial puhotogrammetric survey, if the exposure interval is 20 seconds to cover ground distance of 1000 m between exposures, what would be the ground speed of the aircraft ?

The head over a 90° V-notch weir increases from 0.15 m to 0.3 m. The ratio of new discharge to the original discharge is, nearly equal to

Consider the following statements with ragard to crack formation and its control:
1. The surface width of the crack should not, in general, exceed 0.30 mm for structures not subjected to aggressive environment.
2. When depth of web in a beam exceeds 750 mm, side face reinforcement @ 0.1 percent of web area should be provided on each face.
3. The nominal spacing of main bars in a slab should not exceed three times the effective depth of a solid slab or 300 mm, whichever is smaller.
Which of the statements given above is/are correct ?

A rigid bar is supported by a spring as shown in the given figure.

The deflection of the point B will be