A. Intensive irrigation should be avoided in areas susceptible to water logging
B. Extensive irrigation should be adopted in areas susceptible to water logging
C. Lift irrigation increases water logging
D. all of the above
Related Mcqs:
- Select the correct statement?
A. A meander increases the river length but a cut off reduces the river length
B. A cutoff increases the river length but a meander reduces the river length
C. Both meander and cutoff increase the river length
D. Both meander and cutoff decrease the river length - 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 - A 70% index of wetness means_______________?
A. rain excess of 30%
B. rain deficiency of 30%
C. rain deficiency of 70%
D. none of the above - Seepage through foundation in an earthen dam is controlled by providing___________________?
A. rock toe
B. horizontal blanket
C. impervious cut off
D. chimney drain - Vertical drop fall is satisfactory for a height upto ___________?
A. 0.5 m
B. 1.5 m
C. 3.5 m
D. 5.0 m - The shape of recession limb of a hydrograph depends upon________________?
A. basin characteristics only
B. storm characteristics only
C. both (A) and (B)
D. none of the above - 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 - In case of non-availability of space due to topography, the most suitable spillway is________________?
A. straight drop spillway
B. shaft spillway
C. chute spillway
D. ogee spillway - A deep well_________________?
A. is always deeper than a shallow well
B. has more discharge than a shallow well
C. is weaker structurally than a shallow well
D. both (A) and (B) - Rate of evaporation from a water surface increases if_________________?
1) difference of vapour pressure between water and air is increased
2) velocity of wind is decreased
3) concentration of soluble solids in water is decreased
The correct answer is?A. (1) and (i2)
B. (2) and (3)
C. (2) and (3)
D. (1), (2) and (3)
