SSC JE Mechanical Engineering 2012 Paper

Question : 131 of 200

Marks: +1, -0

Loss of energy due to sudden enlargement of pipe cross-section in metres of water is given by

Solution:

Loss of energy due to sudden enlargement

H_L={1(V_1 -V_2 )^2}/{2g}

[∵a_1v_1=a_2v_2⇒V_2=a_1/a_2V_1]

=1/{2g}V_2^2(V_1^2/V_2^2-1)^2

Continuity Equation

= V_2^2/{2g}[(a_2/a_1)^2-1]

Go to Question:

Prev Question

Next Question