A) gravitational head, pressure head and velocity head
B) gravity, gravitational head and velocity head
C) pressure head, gravitational head and velocity head
D) gravity, pressure and velocity head
Correct Answer: C
Solution :
According to Bernoulli's theorem, in case of steady flow of incompressible and non-viscous liquid through a tube of non-uniform cross-section, the sum of the pressure, the potential energy per unit volume and the kinetic energy per unit volume is same at every point in the tube,\[i.e.,\] \[P+\rho gh+\frac{1}{2}p{{v}^{2}}=\]constant Dividing this expression by\[\rho g\], we have \[\frac{P}{\rho g}+\frac{{{v}^{2}}}{2g}+h=\]constant In this expression \[\frac{P}{\rho g}\] is called the pressure head, \[\frac{{{v}^{2}}}{2g}\] the 'velocity head' and \[h\] the 'gravitational head'.
You need to login to perform this action.
You will be redirected in
3 sec
