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
Related Mcqs:
- 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 - Select the incorrect statement ?
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 - The “outlet discharge factor” is the duty at the head of_________________?
A. main canal
B. branch canal
C. watercourse
D. distributory - If it rains between 2 P.M. and 3 P.M. and the entire basin area just starts contributing water at 3 P.M. to the outlet, then time of concentration will be_____________________?
A. 15 minutes
B. 20 minutes
C. 30 minutes
D. 60 minutes - The main function of a divide wall is to_______________?
A. control the silt entry in the canal
B. prevent river floods from entering the canal
C. separate the undersluices from weir proper
D. provide smooth flow at sufficiently low velocity - The meander pattern of a river is developed by_________________?
A. average discharge
B. dominant discharge
C. maximum discharge
D. critical discharge - If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be__________________?
A. 1 + (0.9)010
B. 1 – (0.9)°l0
C. 1/(1-0.9°10)
D. 1/(1+ 0.9010) - The main cause of meandering is________________?
A. presence of an excessive bed slope in the river
B. degradation
C. the extra turbulence generated by the excess of river sediment during floods
D. none of the above - Seepage through embankments in an earthen dam is controlled by_______________?
A. drainage filters
B. relief wells
C. drain trenches
D. provision of downstream berms - Study the following statements?
1. Levees are constructed parallel to river flow
2. Spurs are constructed parallel to river flow
3. Levees are constructed transverse to river flow
4. Spurs are constructed transverse to river flow
The correct answer isA. (1) and (2)
B. (1) and (4)
C. (2) and (3)
D. (3) and (4)
