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GATE (CE) 2022 : Fluid Mechanics and Hydraulics Quiz #10

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Question 1

Water surface slope (dy/dx) in case of uniform flow in an open channel is

Question 2

Water is flowing through a trapezoidal channel having bottom width 8 m such that the depth of flow is 2.45 m. What will be the hydraulic radius (in m) if the side slope of the channel is 0.5 Horizontal: 1 Vertical.

Question 3

In a rectangular horizontal channel, hydraulic jump occurs. The discharge per unit width is 3.0 m³/s/m. The depth before the jump is 0.30 m. the energy loss is _______ m.

Question 4

Match List-I with List-II and select the correct answer using the code given below the Lists:
List-I
A) Positive surge travelling upstream
B) Positive surge travelling downstream
C) Negative surge travelling upstream
D) Negative surge travelling downstream

List-II
1) Occurs on upstream of gate that is partly closed suddenly
2) Occurs on downstream of gate that is partly closed suddenly
3) Occurs on upstream of gate that is opened suddenly
4) Occurs on downstream of gate that is opened suddenly

Question 5

For a constant specific energy of 1.5 N-m/N, the maximum discharge (in m³/s) that may occur in a parabolic channel 5.0 m wide is

Question 6

A hydraulic jump is formed in a rectangular channel of width 2 m which is horizontal and frictionless. The post jump depth of water is 1.2 m and velocity is 0.75 m/s. Determine the prejump velocity of the water.

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ESE & GATE CE Fluid Mechanics

Aug 12ESE & GATE CE