A. slope-area method
B. area-velocity method
C. moving boat method
D. ultra-sonic method
Related Mcqs:
- The stage of river carrying a discharge of Q m7sec at a point is 10 m and slope of water surface is (1/4000). The discharge of a flood at the same point and same stage of 10 m with a water surface slope of(l/1000) will be________________?
A. V2 Q m3/sec
B. 0.5 Q mVsec
C. 2 Q m3/sec
D. 4 Q m3/sec - The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called________________?
A. proportionality
B. flexibility
C. setting
D. sensitivity - If the R.L’s of canal bed level and high flood level of drainage are 212.0 m and 210.0 m respectively, then cross drainage work will be________________?
A. aqueduct
B. superpassage
C. syphon
D. syphon aqueduct - Which of the following methods of applying water may be used on rolling land ?
A. boarder flooding
B. check flooding
C. furrow flooding
D. free flooding - 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 peak of a 4 hour flood hydrograph is 240 m3/sec . If the rainfall excess is 80 mm and base flow which is constant is 40 m3/sec, then the peak of 4-hours unit hydrograph will be__________________?
A. 20 3/sec
B. 25 m3/sec
C. 30 m3/sec
D. 35 m3/sec - For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is________________?
A. N/(m+l)
B. m/(N+l)
C. m/N
D. (N+l)/m - 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) - For a flood control reservoir, the effective storage is equal to_______________?
A. useful storage – valley storage
B. useful storage + surcharge storage
C. useful storage + surcharge storage + valley storage
D. useful storage + surcharge storage -valley storage - Which of the following canal outlets maintains a constant discharge ?
A. non-modular outlet
B. flexible outlet
C. rigid module
D. none of the above
