Civil Engineering - UPSC Civil Service Exam Questions

Which one of the following pairs is correctly matched ?

A line of true length 500 m when measured by a 20 m tape is reported to be 502 m long. The correct length of the tape is

Where should splices in the columns be provided ?

In a rectangular channel, the depths of flow before and after the hydraulic jump are respectively 0.2 m and 1.2 m. What is the energy loss in the jump ?

A three-hinged circular arch ACB is formed by two quadrants of circles AC and BC of radii 2R and R respectively with C as crown, as shown in the figure at side. Consider the following in respect of the reactive forces developed at support A and B due to concentrated load W at the Crown.
1. Line of action R_A at A is inclined as 45° to the horizontal.
2. V_A = V_B = W/2
3. H_B = 2 H_A
4. H_A = H_B = W/2
Which of the above is/are correct ?