SSC JE Mechanical Engineering 2014 Set 1 Paper

Question : 172 of 200

Marks: +1, -0

The velocity at a point on the crest of a model dam was measured to be 1 m/s. The corresponding prototype velocity for a linear scale ratio of 25, in m/s, is

25
2.5
5
0.04

Validate

Solution:

From the Froud's model law

V_M/√L_M=V_P/√L_P

V_P=V_M√{L_P/L_M}

1×√{25/1}

V_P=5

m/s

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