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Hydraulics

Q1:

If Cv, Cc, Cd and Cr are the hydraulic coefficients of an orifice, then

A Cd = Cc . Cv

B Cr = 1 + Cv2/Cd

C Cv = Cc + Cd

D Cc = Cv/Cd

ANS:A - Cd = Cc . Cv

Cd=Cc. Cv.

Where,
Cc- coeff. Of contraction,
Cd-coeff of dishcharge,
Cv-coeff of velocity,
Trick to remember it;
Q =A .V
Cd=Cc. Cv.



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