1.

If a jet of water of area ‘A’ strikes with velocity ‘V’ a series of flat plates mounted on a wheel of mean diameter D rotating at N rpm, then force exerted will be equal to

A. \(\frac{{\rho A{V^2}}}{g}\)
B. \(\rho AV\left( {V - \frac{{\pi DN}}{{60}}} \right)\)
C. \(\frac{{\rho A}}{g} \times \frac{{\pi DN}}{{60}}\)
D. \(\rho A\left( {V - \frac{{\pi DN}}{{60}}} \right)\)
Answer» C. \(\frac{{\rho A}}{g} \times \frac{{\pi DN}}{{60}}\)


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