Related Questions

In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?
A Rotational
B Unsteady
C Turbulent
D Non-uniform
Which of the following equations applies to the fluid flow through a packed bed for very large Reynolds number?
A Fanning equation
B Blake-Pllummer equation
C Hagen-Poiseulle equation
D Kozney-Karman equation
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
A 4000
B 2100
C 1500
D 3000
The Reynolds number for an ideal fluid flow is
A 4
B 2100-4000
C 4000
D ∞
For an ideal fluid flow, Reynolds number is
A 2100
B 100
C 0
D ∞
The fluid forces considered in the Navier Stokes equation are
A gravity, pressure and viscous
B gravity, pressure and turbulent
C pressure, viscous and turbulent
D gravity, viscous and turbulent
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
A 30°
B 60°
C 90°
D 120°
In case of hydraulically smooth pipe, the resistance to flow depends only on the Reynolds number, whereas for a hydraulically rough pipe, the resistance to flow is governed by the relative roughness. Two pipes are said to have the same hydraulic roughness, when they have equal values of
A Relative roughness
B Absolute roughness
C Friction co-efficient for flows at equal Reynold number
D All of the above
Forces acting on a particle settling in fluid are __________ forces.
A Gravitational & buoyant
B Centrifugal & drag
C Gravitational or centrifugal buoyant drag
D External, drag & viscous
A flow in which the volume of a fluid and its density does not change during the flow is called _________ flow.
A Incompressible
B Compressible
C Viscous
D None of these

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