According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

Related MCQs

• The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)
• The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)
• A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
• When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe.
• The velocity of liquid flowing through an orifice varies with the available head of the liquid.
• When a liquid is flowing through a pipe, the velocity of the liquid is
• The power transmitted through the pipe is maximum when the head lost due to friction is equal to
• The power transmitted through the nozzle is maximum when the head lost due to friction in the pipe is
• The hoss of hed due to an obstruction in a pipe is twice the loss of head at its entrance.
• 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)