At
Above
Below
None of these
C. Below
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)
Steady
Unsteady
Both A and B
None of these
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
Any weight, floating or immersed in a liquid, is acted upon by a buoyant force
Buoyant force is equal to the weight of the liquid displaced
The point through which buoyant force acts, is called the center of buoyancy
Center of buoyancy is located above the center of gravity of the displaced liquid
Linearly
First slowly and then steeply
First steeply and then gradually
Unpredictable
Gravity, pressure and viscous
Gravity, pressure and turbulent
Pressure, viscous and turbulent
Gravity, viscous and turbulent
Its vapour pressure is low
It provides suitable meniscus for the inclined tube
Its density is less
It provides longer length for a given pressure difference
Vertical upward force through e.g. of body and center line of body
Buoyant force and the center line of body
Midpoint between e.g. and center of buoyancy
All of the above
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
Less than 2000
Between 2000 and 4000
More than 4000
Less than 4000
0.34 times
0.67 times
0.81 times
0.95 times
Incompressible
Compressible
Viscous
None of these
Open channel/pipe flow
Compressibility of fluids
Conservation of mass
Steady/unsteady flow
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
Steady
Unsteady
Laminar
Vortex
It gives maximum discharge for a given cross-sectional area and bed slope
It has minimum wetted perimeter
It involves lesser excavation for the designed amount of discharge
All of the above
Elastic
Surface tension
Viscous
Inertia
Weir
Notch
Orifice
None of these
Gas law
Boyle's law
Charles law
Pascal's law
C.G. of body
Center of pressure
Center of buoyancy
Metacentre
Up-thrust
Buoyancy
Center of pressure
All the above are correct
Steady uniform
Non-steady non-uniform
Non-steady uniform
Steady non-uniform
Equal to
One-half
Three fourth
Double
Boyle's law
Archimedes principle
Pascal's law
Newton's formula
Cd × a × √(2gH)
Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H2
Cd × a × √(2g) × H5/2
Double
Four times
Eight times
Sixteen times
Reynold's number
Froude's number
Weber's number
Euler's number
Increase
Decrease
Remain same
Increase/decrease depending on depth of immersion
Has constant viscosity
Has zero viscosity
Is in compressible
None of the above
Q = Cd × bH₁ × √(2gh)
Q = Cd × bH2 × √(2gh)
Q = Cd × b (H2 - H1) × √(2gh)
Q = Cd × bH × √(2gh)