Area of flow and wetted perimeter
Wetted perimeter and diameter of pipe
Velocity of flow and area of flow
None of these
A. Area of flow and wetted perimeter
Surface tension
Compressibility
Capillarity
Viscosity
Metres² per sec
kg sec/metre
Newton-sec per metre
Newton-sec per metre
Sill or crest
Nappe or vein
Orifice
None of these
50 %
56.7 %
66.67 %
76.66 %
Weber's number is the ratio of inertia force to elastic force.
Weber's number is the ratio of gravity force to surface tension force.
Weber's number is the ratio of viscous force to pressure force.
Weber's number is the ratio of inertia force to surface tension force.
0.417 H5/2
1.417 H5/2
4.171 H5/2
7.141 H5/2
The direction and magnitude of the velocity at all points are identical
The velocity of successive fluid particles, at any point, is the same at successive periods of time
The magnitude and direction of the velocity do not change from point to point in the fluid
The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
Steady
Unsteady
Laminar
Vortex
Tensile stress
Compressive stress
Shear stress
Bending stress
Higher than the surface of liquid
The same as the surface of liquid
Lower than the surface of liquid
Unpredictable
Underground flow
Flow past tiny bodies
Flow of oil in measuring instruments
All of these
Are viscous
Possess surface tension
Are compressible
Possess all the above properties
Centre of pressure
Centre of buoyancy
Metacentre
None of these
Weir
Notch
Orifice
None of these
Pressure
Flow
Shape
Volume
2 metres of water column
3 metres of water column
3.5 metres of water column
4 m of water column
Metres² per sec
kg-sec/metre
Newton-sec per metre²
Newton-sec per meter
Up-thrust
Buoyancy
Center of pressure
All the above are correct
Actual velocity of jet at vena-contracta to the theoretical velocity
Area of jet at vena-contracta to the area of orifice
Loss of head in the orifice to the head of water available at the exit of the orifice
Actual discharge through an orifice to the theoretical discharge
Real
Ideal
Newtonian
Non-Newtonian
Force of adhesion
Force of cohesion
Force of friction
Force of diffusion
(2/3) Cd × L.√2g [H1 - Ha]
(2/3) Cd × L. √2g [H1 3/2 - Ha 3/2]
(2/3) Cd × L.√2g [H1 2 - Ha 2]
(2/3) Cd × L. √2g [H1 5/2 - Ha 5/2]
The pressure below the nappe is atmospheric
The pressure below the nappe is negative
The pressure above the nappe is atmospheric
The pressure above the nappe is negative
19.24 kPa
29.24 kPa
39.24 kPa
49.24 kPa
2.4 m
3.0 m
4.0 m
5.0 m
Is steady
Is one dimensional
Velocity is uniform at all the cross sections
All of the above
The direction and magnitude of the velocity at all points are identical
The velocity of successive fluid particles, at any point, is the same at successive periods of time
The magnitude and direction of the velocity do not change from point to point in the fluid
The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane
Mach number
Froude number
Reynolds number
Weber's number
Principle of conservation of mass holds
Velocity and pressure are inversely proportional
Total energy is constant throughout
The energy is constant along a streamline but may vary across streamlines
(2A√H₁)/(Cd × a√2g)
(2AH₁)/(Cd × a√2g)
(2AH₁3/2)/(Cd × a√2g)
(2AH₁²)/(Cd × a√2g)