If velocities of fluid particles vary from point to point in magnitude and direction, as well as from instant to instant, the flow is said to be
To avoid vapourisation, pipe lines are laid over the ridge so that these are above the hydraulic gradient line, not more than
The best side slope for most economical trapezoidal section, is
An orifice is taken as large if
The continuity equation
For a most economical rectangular channel, the hydraulic mean depth, is equal to
The height of water level in a tank above the centre of a circular hole 2.5 cm in diameter ism. The velocity of water flowing through the hole, is
In fluids, steady flow occurs when
The rise of the liquid along the walls of a revolving cylinder above the initial level, is
A jet projected at an angle of 45θ,m from the foot of a vertical column, just reaches the top of the column. The height of the column is
The following is not a laminar flow
A closed cylindrical vessel ofcm diameter andcm high is completely filled with a liquid (sp. weightkg/m3) when rotated about its vertical axis atr.p.m. The total pressure on its lid, is
Water displaced by a floating wooden block of density 0.5 m long, 2 m wide and 3 m high, is
Fluids change the volume under external presssure due to
If Cv, Cc, Cd and Cr are the hydraulic coefficients of an orifice, then
Which one of the following statements is true ?
Pick up the correct statement from the following :
Water belongs to
The specific weight of water iskg/m3
A fluid particle may possess the displacement of
Specific weight of liquid
In Chezy's formula V = C mi
Atmospheric pressure is equal to water column head of
The width of a weir with end contraction, is
Manning's formula is used for
In steady flow, which one of the following changes with time
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