0.3 to 0.45
0.50 to 0.75
0.75 to 0.95
0.95 to 1.0
D. 0.95 to 1.0
51 cm
50 cm
52 cm
52.2 cm
Sill or crest
Nappe or vein
Orifice
None of these
Venturimeter
Orifice meter
Pitot tube
All of these
Velocity of approach
Lower critical velocity
Higher critical velocity
None of these
0.5
0.4
0.515
0.5
Metres² per sec
kg-sec/metre
Newton-sec per metre²
Newton-sec per meter
Avoid the tendency of breaking away the stream of liquid
To minimise frictional losses
Both (A) and (B)
None of these
Equal to
Less than
More than
None of these
Wake
Drag
Lift
Boundary layer
Pascal law
Newton's law of viscosity
Boundary layer theory
Continuity equation
Supersonics, as with projectile and jet propulsion
Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
Simultaneous motion through two fluids where there is a surface of discontinuity, gravity forces, and wave making effect as with ship's hulls
All of the above
Remains constant
Increases
Decreases
Depends upon mass of liquid
2.4 m
3.0 m
4.0 m
5.0 m
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
Inertia force
Viscous force
Gravity force
All of these
0.62
0.76
0.84
0.97
Comparing two identical equipments
Designing models so that the result can be converted to prototypes
Comparing similarity between design and actual equipment
Hydraulic designs
Mach number
Froude number
Reynoldss number
Weber's number
Steady uniform flow
Steady non-uniform flow
Unsteady uniform flow
Unsteady non-uniform flow
Negligible
Same as buoyant force
Zero
None of the above
Volumetric strain
Volumetric index
Compressibility
Adhesion
Equal to
Double
Three to four times
Five to six times
Directly proportional to density of fluid
Inversely proportional to density of fluid
Directly proportional to (density)1/2 of fluid
Inversely proportional to (density)1/2 of fluid
Is steady
Is one dimensional
Velocity is uniform at all the cross sections
All of the above
Tensile stress
Compressive stress
Shear stress
Bending stress
Elastic properties of the pipe material
Elastic properties of the liquid flowing through the pipe
Speed at which the valve is closed
All of the above
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
Fluid
Water
Gas
Ideal fluid
Linear
Parabolic
Hyperbolic
Inverse type
Frictional force
Viscosity
Surface friction
All of the above