- 0.223 R
- 0.423 R
- 0.577 R
- 0.707 R
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What is the ratio of the velocity at the axis of the pipe to the mean velocity of flow in case of pipe flow under viscous condition?
Answer: Option 4 Let'
1 Answers 3 views
The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is (where R is the radius of pipe)?
Answer: Option 1 Let'
1 Answers 6 views
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)?
Answer: Option 2 Let'
1 Answers 15 views
For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).?
Answer: Option 1 Let'
1 Answers 1 views
In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as :(where, 'δ' is the boundary layer thickness and 'x' is the distance from the leading edge in the direction of flow).?
Answer: Option 4 Let'
1 Answers 1 views
The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe)?
Answer: Option 1 Let'
1 Answers 1 views
Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.)?
Answer: Option 3 Let'
1 Answers 1 views
In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity)?
Answer: Option 2 Let'
1 Answers 2 views
The velocity at which the flow changes from laminar flow to turbulent flow is called?
Answer: Option 1 Let'
1 Answers 1 views
Which of the following must be followed by the flow of a fluid (real or ideal) (I) Newton's law of viscosity.(II) Newton's second law of motion. (III) The continuity equation.(IV) Velocity of boundary layer must be zero relative to boundary.(V) Fluid cannot penetrate a boundary.?
Answer: Option 2 Let'
1 Answers 6 views