The sequent depth ratio of a hydraulic jump in a rectangular horizontal channel

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Question
The sequent depth ratio of a hydraulic jump in a rectangular horizontal channel is 10.30. The Froude Number at the beginning of the jump is :
Options
A. 5.64
B. 7.63
C. 8.05
D. 13.61

Correct Answer

7.63

GATE Exam Questions problems

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1. A point load of 700 kN is applied on the surface of thick layer of clay. Using Boussinesq's elastic analysis, the estimated vertical stress (?_v) at a depth of 2 m and a radial distance of 1.0 m from the point of application of the load, is :
Options
A. 47.5 kPa
B. 47.6 kPa
C. 47.7 kPa
D. 47.8 kPa

3. The time for a clay layer to achieve 90% consolidation is 15 years. The time required to achieve 90% consolidation; if the layer were twice as thick, 3 times forr permeable and 4 times more compressible would be :
Options
A. 70 years
B. 75 years
C. 80 years
D. 85 years

4. The ratio of unconfined compressive strength of an undisturbed sample of soil to that of a remoulded sample, at the same water content, is known as :
Options
A. activity
B. damping
C. plasticity
D. sensitivity

5. A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observed to be 80 km per hour and the jam density is estimated as 100 vehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively be
Options
A. 8000 vehicles per hour and 80 km per hour
B. 8000 vehicles per hour and 25 km per hour
C. 2000 vehicles per hour and 80 km per hour
D. 2000 vehicles per hour and 40 km per hour

7. A simply supported beam with an overhang is traversed by a unit concentrated moment from the left to the right as shown below

The influence line for reaction at B is given by
Options
A.
B.
C.
D. zero everywhere.

9. For an anisotropic soil, permeabilities in x and y directions are k_x and k_y respectively in a two dimensional flow. The effective permeability k_eq for the soil is given by
Options
A. k_x + k_y
B. k_x/k_y
C. (k_x² + k_y²)^1/2
D. (k_xk_y)^1/2

10. A parabolic curve is used to connect a 4% upgrade with a 2% downgrade as shown in the below figure. The highest point on the summit is at a distance of (measured horizontally from the first tangent point - (FTP)
Options
A. 50 m
B. 60 m
C. 75 m
D. 100 m

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