Two pipe systems are said to be equivalent when
In a Laminar Boundary Layer over a flat plate, the ratio of shear stresses r_{1} and r_{2}’ at two sections 1 and 2 at distances from the leading edge such that X_{2} = 9x_{1}, is
Water (S = 1, μ = 1 centipoise) flows under pressure through of a pipe of 1 cm diameter at a velocity of 60 cm/min. What would be the head loss per km length of the pipe?
The DrayWeisbach equation for head loss is valid
For a solid sphere falling under gravity at terminal velocity in a fluid.
For uniform flow in a channel
The relationship between Manning’s coefficient ‘n’ and Chezy’s coefficient 'c' is given by
If the specific energy at the upstream section of a rectangular channel is 3 m and minimum specific energy is 2.5 m, the maximum height of hump without causing afflux will be
For a steep slope profile S_{1}, the type of flow will be
Pick up the incorrect statement with respect to critical flow
The critical depth of flow in a most economical triangular channel section for a discharge of 1 m ^{3}/sec is given by
If the depth of flow in a channel is 1 m and velocity of flow is 2 m/sec. then the velocity with which an elementary wave can travel down stream
Figure below shoes gradually varied flow in an open chennal with a brake in bed slope
Types of water surface profiles occuring from left to right is
Which one of the following pairs of situations and types of water surface profiles is not correctly matched?
A discharge of 3.0 m^{3}/s flows in a canal, 2 m side, at a depth of 1.2 m. If the width of the canal is reduced to 1.5 m by a canal transition, then the neglecting losses, the depth of flow after the contraction will be
A hydraulically efficient trapezoidal section of open channel flow carries water at the optimal depth of 0.6m.Chezy coefficient is 75 and bed slope is 1 in 250. What is the discharge through the channel?
Common Data Questions (32 and 33):
A smooth flat plate with a sharp leading edge is placed along a gas free stream flowing at U = 10 m/s. The thickness of the boundary layer at section rs is 10 mm, the breadth of the plate is 1 m (into the paper) and the density of the gas, p = 1.0 kg/m^{3} . Assume that the boundary layer is thin, two  dimensional, and follows a linear velocity distribution, u = U (y/δ), at the section rs, where y is the height from plate.
Q. The mass flow rate in Kg/s accros the section qr is
A smooth flat plate with a sharp leading edge is placed along a gas free stream flowing at U = 10 m/s. The thickness of the boundary layer at section rs is 10 mm, the breadth of the plate is 1 m (into the paper) and the density of the gas, p = 1.0 kg/m^{3} . Assume that the boundary layer is thin, two  dimensional, and follows a linear velocity distribution, u = U (y/δ), at the section rs, where y is the height from plate.
Q. The integrated drag force in N on the plate, between ps, is
Linked Data Questions (34 and 35):
Consider fully developed, laminar flow in a circular pipe of radius ‘R’ .The centre  line velocity of the flow is U_{m.}
Q. The velocity u at a radial distance r from the center line of the pipe is given by
Consider fully developed, laminar flow in a circular pipe of radius ‘R’ .The centre  line velocity of the flow is U_{m}
Q.The value of the radial distance from the centre line of the pipe at which the velocity would be equal to the average velocity of the flow is
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