Fluid Mechanics Exam Prep
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Fluid Mechanics Exam Prep
Sample questions with model answers
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Derive an expression for Euler's equation of motion and Bernoulli's equation.
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Euler's equation: \( rac{dV}{dt} = - rac{1}{ ho} abla P + g \); Bernoulli's: \( P + rac{1}{2} ho V^2 + ho gh = constant \).
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What is venturimeter? Derive an expression for discharge through a venturimeter.
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A venturimeter measures flow rate; discharge \( Q = A_1 A_2 \sqrt{ rac{2(P_1 - P_2)}{ ho (A_1^2 - A_2^2)}} \).
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Define an orifice-meter? Derive an expression for discharge through an orifice-meter.
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An orifice-meter measures flow; discharge \( Q = C_d A \sqrt{2gh} \).
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Drive an expression for Loss of Head Due to Sudden Enlargement in pipe.
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Loss of head is given by \( h_f = k rac{V^2}{2g} \) for sudden enlargement.
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