Civil Engineering - UPSC Civil Service Exam Questions

If an element is subjected to pure shearing stress τ_xy then the maximum principal stress is equal to

The wall friction of the retaining wall:

Consider the following statements :
The salient features of a bar chart over network are that :
1. It is simple to draw and easy to understand.
2. It is unable to depict interdependence of activities.
3. It clearly distinguishes between critical and non-critical activities.
4. It is not possible to crash activities to get optimum and minimum duration of the project.
Which of the following statements given above are correct ?

Which one of the following is the best method for locating sounding to estimate the dredged material from the harbours ?

An open channel carrying super critical flow is provided with a smooth expansion along the direction of flow. When no other considerations interfere, then the water surface.