Civil Engineering - UPSC Civil Service Exam Questions

11. 

Consider the following statements :
Wind rose diagram is used for the purpose of
1. runway orientation.
2. estimating the runway capacity
3. geometric design of holding apron.
Of these statements :

A. 1 and 2 are correct
B. 2 and 3 are correct
C. 1 and 3 are correct
D. 1 alone is correct

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

12. 

The discharge per metre width at the foot of a spillway is 10 m3/s at a velocity of 20 m/s. A perfect free hydraulic jump will occur at the foot of the spillway when the tail water depth is approximately equal to

A. 4.50 m
B. 5.00 m
C. 5.50 m
D. 6.50 m

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

13. 

Which one of the following is the appropriate triaxial test to assess the immediate stability of an unloading problem, such as an excavation of a clay slope ?

A. UU test
B. CU test
C. CD test
D. Unconsolidated drained test

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

14. 

A mild steel flat subjected to a tensile force of 84 tonnes is connected to a gusset plate using rivets. If the forces required to shear a single rivet, to crush the rivet and to tear the plate per pitch length are 5000 kg, 8000 kg and 6000 kg respectively, then the number of rivets required is

A. 12
B. 14
C. 16
D. 17

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

15. 

What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent ?

A. The in-situ total normal stress
B. The in-situ total lateral stress
C. The in-situ effective average principal stress
D. The in-situ shear stress

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.