Q2. In the system given below, the water from reservoir A is pumped to point E, which is open to the atmosphere,
with a discharge of 324 L/s and to reservoir D with a discharge of 648 L/s.
a) Calculate the power (N, kW) of the pump ($\eta$ = 0.70, $\gamma_w$ = 9.81 kN/m³ and $v$ = 10?? m²/s),
b) Calculate the diameter (D, cm) of pipe 4 (C-E),
c) Calculate the roughness depth ($k_s$ or $\epsilon$, mm) of pipe 2, and
d) Draw the energy grade line (EGL) of the whole system (The local head losses will be ignored).
A-B (1): f = 0.027, L = 450m, D = 600mm
B-C (2): f = 0.020, L = 1200m, D = 600mm
C-D (3): f = 0.022, L = 600m, D = 600mm
C-E (4): f = 0.027, L = 300m, D = ?
