Determine the value of the hydraulic depth of a channel having dy⁄dx = 4×10-4 and dE⁄dx = 3.73×10-Given:V = 1m/s
a) 0.5m
b) 1.5m
c) 2.5m
d) 3.5m
Q.2.
A rectangular channel has depth ofand width of 2m, calculate the rate of change of depth if the rate of change of specific energy is 2×10-5m. Given: Fr=0.48.
a) 0.60×10-5m
b) 1.60×10-5m
c) 2.60×10-5m
d) 3.60×10-5m
Q.3.
The top width of a triangular channel section isand the side slope of the channel is 1H:4V, calculate the rate of change of specific energy if dy⁄dx = 2×10-and V=2 m/s
a) 1.86×10-5m
b) 2.86×10-5m
c) 3.86×10-5m
d) 4.86×10-5m
Q.4.
If dE⁄dx = 2.5×10-4 m and dy⁄dx = 3.5×10-4 m, calculate the value of Fr.
a) 0.23
b) 0.33
c) 0.43
d) 0.53
Q.5.
The rate of change of specific energy is given by x2/2 and x ranges from 0 tocalculate the value of specific energy.
a) 2.5m
b) 3.5m
c) 4.5m
d) 5.5m
Q.6.
The rate of change of depth is given by 1/xand the rate of change of specific energy is given by 3x2 with x ranging from 0 to 0.calculate the value of Froude’s number.
a) 0.96
b) 0.97
c) 0.98
d) 0.99
Q.7.
The hydraulic depth of a channel is 0.and the velocity of flow ism/s. Calculate the rate of change of depth if the rate of change of specific energy is 2.5×10-4m.
a) 2.33×10-4m
b) 3.33×10-4m
c) 4.33×10-4m
d) 5.33×10-4m
Q.8.
Calculate the value of Froude’s number for a rectangular channel having depth 1.and width 2.if the value of C =and S0=1 in 1000.
a) 0.1
b) 0.2
c) 0.3
d) 0.4
Q.9.
The dynamic equation for the slope of water surface in a GVF is not valid for super critical flow.
a) True
b) False
Q.10.
If the ratio of dE⁄dx and dy⁄dx is 0.estimate the value of Froude’s number.
a) 0.65
b) 0.75
c) 0.85
d) 0.95
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