Civil Engineering - UPSC Civil Service Exam Questions

26.
The process by which a mass of saturated soil is caused by external forces to suddenly lose its shear strength and to behave as a fluid is called
piping
slide
quick condition
liquefaction
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.
In steady laminar flow of a liquid through a circular pipe of internal diameter D, carrying a constant discharge, the hydraulic gradient is inversely proportional to
D
D2
D4
D5
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
A pipe line, 2000 m long, carries water. Velocity of propagation of pressure wave is 1000 m/s. If the valve at the low stream end is instantaneously closed at time, t = 0, negative water hammer pressure at the valve will last for
0 - 4 S
2 - 4 S
4 - 8 S
S - 12 S
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.
Consider the following statements related to triaxial test :
1. Failure occurs along pre-determined plane.
2. Intermediate and minor principal stresses are equal.
3. Volume changes can be measured.
4. Field conditions can be simulated.
Of these statements :
1, 2 and 3 are correct
1, 2 and 4 are correct
1, 3 and 4 are correct
2, 3 and 4 are correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
What is the magnitude of the force in the member BD in the figure given above ?
5 kN
7 kN (App)
42kN
Zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.