A. 0.5
B. 1
C. 1.5
D. 2
Related Mcqs:
- The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is_________________?
A. 0.3
B. 0.9
C. 0.03
D. 0.66 - In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is_________________?
A. 0.5
B. 0.84
C. 1.84
D. 1.25 - The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is________________?
A. 0.1
B. 0.55
C. 0.95
D. 1.85 - The ratio of width to depth for the most economical rectangular section in open channel flow is_________________?
A. 0.5
B. 1
C. 1.5
D. 2 - Normal depth in open channel flow is the depth of flow in the channel ____________________?
A. Corresponding to uniform flow
B. Measured normal to the channel bed
C. Corresponding to steady flow
D. None of these - If ‘x’ is the depth of flow in an open channel of large width, then the hydraulic radius is equal to________________?
A. x
B. x/2
C. x/3
D. 2x/3 - Hydraulic mean depth (Dm) for a circular pipe of diameter ‘D’ flowing full is 0.25 D. For a circular channel, at Dm = 0.3 D, gives the condition for the maximum ?
A. Flow rate
B. Mean velocity
C. Both ‘a’ & ‘b’
D. Neither ‘a’ nor ‘b’ - Gradually varied flow in open channel is a/an ____________ flow?
A. Steady uniform
B. Steady non-uniform
C. Unsteady uniform
D. Unsteady non-uniform - Hydraulic mean radius for flow through packed bed of spherical particle of size, ‘Dp, with porosity ‘ε’ is________________?
A. (Dp/6) (ε/1- ε)
B. (Dp/6) (1- ε/ε)
C. ⅔Dp (1- ε/ε)
D. ⅔Dp (ε/1- ε) - The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is___________________?
A. √(HW/π)
B. HW/2 (H + W)2
C. HW/4 (H + W)2
D. 2HW/(H + W)
