11. Infiltration is the_______________?
A. movement of water through the soil
B. absorption of water by soil surface
C. both (A) and (B)
D. none of the above
✅ The correct answer is option A.
Irrigation, Water Resources Engineering and Hydrology MCQs
12. A repelling groyne is aligned________________?
A. pointing upstream
B. pointing downstream
C. perpendicular to bank
D. parallel to bank
✅ The correct answer is option A.
13. The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are_________________?
A. at right angle and parallel to weir crest
B. parallel and at right angle to weir crest
C. parallel to weir crest in both
D. at right angle to weir crest in both
✅ The correct answer is option A.
14. Assertion A : To estimate the rainfall over a catchment, the number of raingauges required per unit area is large for hilly areas. Reason R : Rainfall gradient is steep. Select your correct answer according to the coding system given below ?
A. Both A and R are true and R is the correct explanation of A
B. Both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
✅ The correct answer is option A.
15. The kor depth for rice is 190 mm and kor period is 14 days. The outlet factor for this will be_________________?
A. 637 hectares/m3/sec
B. 837 hectares/m3/sec
C. 972 hectares/m3/sec
D. 1172 hectares/m3/sec
✅ The correct answer is option A.
16. If the demand line drawn from a ridge in a flow mass curve does not intersect the curve again, it indicates that______________?
A. demand cannot be met by inflow
B. reservoir was not full at the beginning
C. both (A) and (B)
D. none of the above
✅ The correct answer is option A.
17. When surface of transpiration is submerged under water, then potential evapotranspiration is________________?
A. much more than evapotranspiration
B. much less than evapotranspiration
C. equal to evapotranspiration
D. equal to or less than evapotranspi-ration
✅ The correct answer is option A.
18. Lining of irrigation channels________________?
A. increases the waterlogging area
B. decreases the waterlogging area
C. does not change the water logging area
D. none of the above
✅ The correct answer is option B.
19. When the reservoir is full, the maximum compressive force in a gravity dam is produced______________?
A. at the toe
B. at the heel
C. within the middle third of base
D. at centre of base
✅ The correct answer is option A.
20. Trap efficiency of a reservoir is a function of_______________?
A. capacity/inflow ratio
B. capacity/outflow ratio
C. outflow/inflow ratio
D. none of the above
✅ The correct answer is option A.