Hydraulics and Fluid Mechanics MCQs

[A]. neutral equilibrium

[B]. stable equilibrium

[C]. unstable equilibrium

[D]. none of these

[A]. total energy per unit discharge

[B]. total energy measured with respect to the datum passing through the bottom of the channel

[C]. total energy measured above the horizontal datum

[D]. kinetic energy plotted above the free surface of water

[A]. less than

[B]. more than

null

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[A]. Cd x a2gH

[B]. Cd x a2g x H3/2

[C]. Cd x a2g x H2

[D]. Cd x a2g x H5/2

[A]. tension at the base

[B]. overturning of the wall or dam

[C]. sliding of the wall or dam

[D]. all of these

[A]. horizontal line

[B]. inclined line with flow upwards

[C]. inclined line with flow downwards

[D]. any direction and in any location

[A]. Correct

[B]. Incorrect

null

null

[A]. actual velocity of jet at vena contracta to the theoretical velocity

[B]. area of jet at vena contracta to the area of orifice

[C]. loss of head in the orifice to the head of water available at the exit of the orifice

[D]. actual discharge through an orifice to the dieoretical discharge

[A].

[B].

[C]. ρ.dp + g.dz + v.dv = 0

[D]. ρ.dp – g.dz + v.dv = 0