51 cm
50 cm
52 cm
52.2 cm
A. 51 cm
Linearly
First slowly and then steeply
First steeply and then gradually
Unpredictable
Centre of gravity of the floating body and the centre of buoyancy
Centre of gravity of the floating body and the metacentre
Metacentre and centre of buoyancy
Original centre of buoyancy and new centre of buoyancy
Equal to
Less than
More than
None of these
Q = (2/3) Cd × b × √(2g) × (H2 - H1)
Q = (2/3) Cd × b × √(2g) × (H2 1/2 - H1 1/2)
Q = (2/3) Cd × b × √(2g) × (H2 3/2 - H1 3/2)
Q = (2/3) Cd × b × √(2g) × (H2 2 - H1 2)
Pressure head
Velocity head
Pressure head + velocity head
Pressure head - velocity head
The metacentre should lie above the center of gravity
The center of buoyancy and the center of gravity must lie on the same vertical line
A righting couple should be formed
All the above are correct
Metres² per sec
kg sec/metre
Newton-sec per metre
Newton-sec per metre
Gravitational force is equal to the up-thrust of the liquid
Gravitational force is less than the up-thrust of the liquid
Gravitational force is more than the up-thrust of the liquid
None of the above
h
wh
w/h
h/w
Energy
Work
Mass
Length
Density of liquid
Specific gravity of liquid
Compressibility of liquid
Surface tension of liquid
Has constant viscosity
Has zero viscosity
Is in compressible
None of the above
Moving
Viscous
Viscous and static
Viscous and moving
Specific weight
Mass density
Specific gravity
None of these
Velocity of flow at the required point in a pipe
Pressure difference between two points in a pipe
Total pressure of liquid flowing in a pipe
Discharge through a pipe
Critical flow
Turbulent flow
Tranquil flow
Torrential flow
Steady flow
Turbulent flow
Vortex flow
Uniform flow
H/3
H/2
2H/3
3H/4
Continuity equation
Bernoulli's equation
Pascal's law
Archimedess principle
Specific gravity of liquids
Specific gravity of solids
Specific gravity of gases
Relative humidity
Remains horizontal
Becomes curved
Falls on the front end
Falls on the back end
Bottom surface of the body
C.G. of the body
Metacentre
All points on the surface of the body
Pressure in pipe, channels etc.
Atmospheric pressure
Very low pressures
Difference of pressure between two points
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
0.34 times
0.67 times
0.81 times
0.95 times
Inertia
Gravity
Viscous
None of these
(H - hf )/H
H/(H - hf )
(H + hf )/H
H/(H + hf )
Crest
Nappy
Sill
Weir top
Steady uniform
Non-steady non-uniform
Non-steady uniform
Steady non-uniform
Shear stress to shear strain
Increase in volume to the viscosity of fluid
Increase in pressure to the volumetric strain
Critical velocity to the viscosity of fluid