Q.1
Which of the following conditions is taken into account in case of most economical circular channel section?
  • a) Minimum wetted perimeter
  • b) Minimum wetted area
  • c) Maximum velocity
  • d) Maximum depth
Q.2
What is the condition for maximum velocity in case of most economical circular section?
  • a) sin⁡ 2θ=2θ
  • b) cos⁡ 2θ=2θ
  • c) tan⁡ 2θ=2θ
  • d) sec⁡ 2θ=2θ
Q.3
What is the value of the θ in case of most economical circular channel section?
  • a) 128°45′
  • b) 129°45′
  • c) 130°45′
  • d) 131°45′
Q.4
What is the depth of flow in case most economical circular section considering maximum velocity?
  • a) 0.61D
  • b) 0.71D
  • c) 0.81D
  • d) 0.91D
Q.5
Determine the depth of flow in case of maximum velocity when the radius of the channel is 2.2m.
  • a) 3.56m
  • b) 4.56m
  • c) 5.56m
  • d) 6.56m
Q.6
The maximum discharge through a most economical circular section in case of maximum velocity is 0.m3/s calculate the bed slope of the channel if the radius is 0.and C = 55.
  • a) 1 in 1000
  • b) 1 in 1100
  • c) 1 in 1200
  • d) 1 in 1300
Q.7
The maximum discharge through a circular channel is 0.m3/s and the radius of the channel is 0.6m. Calculate the value of C if S0=1 in 1000.
  • a) 45
  • b) 50
  • c) 55
  • d) 60
Q.8
The maximum discharge through a circular channel is 0.m3/s and the radius of the section is 0.7m. Calculate the value of n if the bed slope value is 1 in 1100.
  • a) 0.018
  • b) 0.019
  • c) 0.020
  • d) 0.021
Q.9
Calculate the hydraulic mean depth in case of maximum mean velocity if the radius of the channel is 0.5m.
  • a) 0.3m
  • b) 0.4m
  • c) 0.5m
  • d) 0.6m
Q.10
Calculate the depth in case of circular channel discharging to the maximum extent if the radius of the channel is 2m.
  • a) 1.8m
  • b) 2.8m
  • c) 3.8m
  • d) 4.8m
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