Civil Engineering - UPSC Civil Service Exam Questions

Consider the following statements :
Total flat is :
1. the time span by which the starting (or finishing) of an activity can be delayed without delaying the completion of the project.
2. difference between maximum time available and the actual time required to perform the activity.
3. difference between its earliest finish time and the earliest start time of its successor activity.
Which among the following is/are correct ?

In a linear reservoir, the

The given figure shows the relation between void ratio and shear strain for a sand under two density conditions. The void ratio corresponding to the dashed line is called

The separation of boundary layer takes place when the pressure gradient is

A free vortex formed from originally still water, say, as when draining still water in a flat-bottomed basin by suddenly pulling the stopper at the bottom on the drain hole, will be