engineering recuitment DVC Junior Engineer Mock Test 2024 Fluid Mechanics Turbomachinery Impulse Turbine
The maximum hydraulic efficiency of a Pelton wheel for hydraulic efficiency = \(2({V_{{w_1}}} + {V_{{w_2}}}) \times u/{V_1}^2\) with conventional notations is
1
(1 - Cos ϕ)
2
(1 + Cos ϕ)
3
(1 - Cos ϕ)/2
4
(1 + Cos ϕ)/2