Local atmospheric pressure depends upon elevation of locality only
Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
Local atmospheric pressure is always below standard atmospheric pressure
A barometer reads the difference between local and standard atmospheric pressure
B. Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
Increases
Decreases
Remain unaffected
Unpredictable
Viscosity of a fluid is that property which determines the amount of its resistance to a shearing force
Viscosity is due primarily to interaction between fluid molecules
Viscosity of liquids decreases with increase in temperature
Viscosity of liquids is appreciably affected by change in pressure
Weir
Notch
Orifice
None of these
Low pressure
High pressure
Moderate pressure
Vacuum pressure
Remain same
Increases
Decreases
Shows erratic behaviour
Cohesion
Adhesion
Viscosity
Surface tension
Head of water (h)
h²
V/T
h/2
Energy/unit area
Velocity/unit area
Both of the above
It has no units
N/m
N/m2
N/m3
N-m
Crest
Nappy
Sill
Weir top
14π R1/2/15Cd × a √(2g)
14π R3/2/15Cd × a √(2g)
14π R5/2/15Cd × a √(2g)
14π R7/2/15Cd × a √(2g)
2.4 m
3.0 m
4.0 m
5.0 m
Pressure head
Velocity head
Pressure head + velocity head
Pressure head - velocity head
Steady uniform flow
Steady non-uniform flow
Unsteady uniform flow
Unsteady non-uniform flow
It is incompressible
It has uniform viscosity
It has zero viscosity
It is at rest
Centre of pressure
Centre of buoyancy
Metacentre
None of these
Pressure force
Elastic force
Gravity force
Surface tension force
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
1.84 (L - 0.1nH)H3/2
1.84 (L - nH)H2
1.84 (L - 0.1nH)H5/2
1.84 (L - nH)H3
Centre of gravity
Centre of depth
Centre of pressure
Centre of immersed surface
Pressure head + kinetic head + potential head
Pressure head - (kinetic head + potential head)
Potential head - (pressure head + kinetic head)
Kinetic head - (pressure head + potential head)
Pressure in pipe, channels etc.
Atmospheric pressure
Very low pressures
Difference of pressure between two points
(μπ²N/60t) × (R₁ - R₂)
(μπ²N/60t) × (R₁² - R₂²)
(μπ²N/60t) × (R₁³ - R₂³)
(μπ²N/60t) × (R₁⁴ - R₂⁴)
C.G. of body
Center of pressure
Center of buoyancy
Metacentre
One-half
One-third
Two-third
None of these
0.417 H5/2
1.417 H5/2
4.171 H5/2
7.141 H5/2
One stoke
One centistoke
One poise
One centipoise
It is the best liquid
The height of barometer will be less
Its vapour pressure is so low that it may be neglected
Both (B) and (C)
Equal to
Less than
More than
None of these
Triangular
Rectangular
Square
Trapezoidal