Test: Flow Through Pipes - 2 - Mechanical Engineering MCQ

In a pipeline, the H.G.L is above the pipe center line in the longitudinal section at point A and below the pipe center line at another point B.
From this it can be inferred that

In network of pipes

Consider the following statements:
1. Pipe network analysis is normally necessary in analyzing flow in pipes at city water systems,
2. Hardy-cross method of solving pipe network is a method of successive approximations and is not a direct method.
3. The network must satisfy the momentum equation because the flow in each pipe satisfies the head loss equation.
4. Principle of continuity is satisfied in a pipe network..

Select the correct statments:

The diameter of the nozzle (d) for maximum transmission of power is given by
Where
D = Diameter of pipe
f = Darcy’s friction factor
l = Length of pipe

Maximum efficiency of transmission of power through a pipe is

Power transmitted through a pipe is maximum when
Where
H = total head supplied
H_L = head loss due to friction

Power transmitted through a pipe is given by
where
w = specific weight of the fluid flowing through pipe
Q = discharge, m³/s