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GATE CE 2020: Fluid Mechanics Quiz 10
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Question 1
The flow in a horizontal, frictionless rectangular open channel is supercritical. A smooth humps is built on the channel floor. As the height of hump is increased, chocked condition is attained. With further increase in the height of the hump, the water surface will
Question 2
For a given discharge, the critical flow depth in an open channel depends on
Question 3
A rectangular open channel needs to be designed to carry a flow of 2.0m3/s under uniform flow conditions. The Manning's roughness coefficient is 0.018. The channel should be such that the flow depth is equal to half the width, and the Froude number is equal to 0.5.
The bed slope of the channel to be provided is
Question 4
The Froude number of flow in a rectangular channel is 0.8. If the depth of flow is 1.5 m, the critical depth is
Question 5
The flow rate in a wide rectangular open channel is 2.0m2/s per meter width. The channel bed slope is 0.002. The Manning's roughness coefficient is 0.012. The slope of the channel is classified as
Question 6
A rectangular channel carrying a super critical stream is to be provided with hydraulic jump type of energy dissipater. If it is desired to have an energy loss of 6.0 m in the jump when the initial Froude number is 9.0, then the sequent depths (in m) are
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Sep 27ESE & GATE CE
