According to Manning's formula, the discharge through an open channel is (where M = Manning's constant)

Related MCQs

• According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)
• The coefficient of discharge is the ratio of theoretical discharge to the actual discharge through an orifice.
• The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
• The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.
• The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.
• The discharge in an open channel corresponding to critical depth is
• The discharge in an open channel corresponding to critical depth is
• The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)
• If the value of coefficient of discharge increases, the discharge through the orifice decreases.
• When an internal mouthpiece is running full, the discharge through the mouthpiece is twice the discharge when it is running free.