SSC JE Mechanical Engineering 11 Oct 2020 Shift 1 Papers

Question : 147 of 200

Marks: +1, -0

The coefficient of velocity,

c_v­

for an orifice is 0.98. Head loss at the orifice for discharge under a head of 200 cm is:

Solution:

Given:

{H}=200 {cm}, {c}_{{v}}=0.98

{H}_{{f}}={H}(1-{C}_{{V}}^{2})

{H}_{{f}}=200(1-0.98^{2})

{H}_{{f}}=7.92 {cm}

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