Pressure force
Elastic force
Gravity force
Viscous force
D. Viscous force
(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]
Bottom surface of the body
C.G. of the body
Metacentre
All points on the surface of the body
Decreases
Increases
Remain same
None of these
(H - hf )/H
H/(H - hf )
(H + hf )/H
H/(H + hf )
Only when the fluid is frictionless
Only when the fluid is incompressible and has zero viscosity
When there is no motion of one fluid layer relative to an adjacent layer
Irrespective of the motion of one fluid layer relative to an adjacent layer
The pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
Pressure becomes more than critical pressure
Flow is increased
Pressure is increased
Volumetric strain
Volumetric index
Compressibility
Adhesion
Steady
Unsteady
Both A and B
None of these
The fluid is non - viscous, homogeneous and incompressible
The velocity of flow is uniform over the section
The flow is continuous, steady and along the stream line
All of the above
Maximum
Minimum
Zero
Nonzero finite
Cohesion
Adhesion
Viscosity
Surface tension
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
Increases
Decreases
Remain unaffected
Unpredictable
Low density
High density
Low surface tension
High surface tension
h
wh
w/h
h/w
flv²/2gd
flv²/gd
3flv²/2gd
4flv²/2gd
Equal to
Double
Three to four times
Five to six times
Pressure energy + kinetic energy + potential energy
Pressure energy - (kinetic energy + potential energy)
Potential energy - (pressure energy + kinetic energy
Kinetic energy - (pressure energy + potential energy)
Inertia force
Viscous force
Gravity force
Pressure force
Velocity of liquid
Pressure of liquid
Area of mouthpiece
Length of mouthpiece
Steady flow
Unsteady flow
Laminar flow
Uniform flow
2100
2700
10,000
21,000
Quasi-static
Steady state
Laminar
Uniform
Pressure in pipes, channels etc.
Atmospheric pressure
Very low pressure
Difference of pressure between two points
Equal to
Less than
More than
None of these
Newton's law of motion
Newton's law of cooling
Newton's law of viscosity
Newton's law of resistance
0.83
0.6
0.4
0.3
200 kg/m3
400 kg/m3
600 kg/m3
800 kg/m3
The size of orifice is large
The velocity of flow is large
The available head of liquid is more than 5 times the height of orifice
The available head of liquid is less than 5 times the height of orifice
Above it
Below it
At same point
Above or below depending on area of body