A. Wetted perimeter to flow area
B. Flow area to wetted perimeter
C. Flow area to square of wetted perimeter
D. Square root of flow area to wetted perimeter
Related Mcqs:
- The ratio of the depth of flow to the hydraulic radius for the most economical trapezoidal section, in open channel flow is_____________________?
A. 0.5
B. 1
C. 1.5
D. 2 - 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 - 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) - Which of the following quantities are computed by using the hydraulic radius for noncircular ducts ?
A. Velocity and relative roughness
B. Head loss and velocity
C. Reynold number, relative roughness and head loss
D. Reynolds number and friction factor - 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 - 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) - 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 - Hydraulic diameter for non-circular ducts is equal to ___________ times the area of flow divided by the perimeter?
A. Two
B. Three
C. Four
D. Eight - The pump impeller and the turbine runner in a hydraulic torque converter___________________?
A. Have the same diameter
B. Have different diameters
C. Are directly coupled
D. None of these - A hydraulic ram acts as a/an ______________ pump?
A. Centrifugal
B. Reciprocating
C. Impulse
D. Parallel cylinder
