Q. What structure does the diagram represent?

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Q. What are the types of sediment load?

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Q. Increased dissolved load gives the flooded stream its muddy color.

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Q. At low velocity, the bed does not move at all but as velocity increases, it goes on assuming different shapes.

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Q. On increasing velocity beyond the threshold stage of motion, the bed develops ____________ shape.

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Q. Which of the following statement is wrong?

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Q. When the velocity is further increased beyond the stage where sand waves are formed in association with the surface waves, the waves are then called as ____________

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Q. In the case of canals and natural streams, anti-dunes rarely occur.

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Q. On which factor does the movement of bedload depends?

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Q. Commonly the bed load is 10% of total suspended load.

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Q. What type of force is completely responsible for the bedload movement?

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Q. Which type of force is needed for suspension of suspended load in flowing water?

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Q. A part of tractive force does not have any part in transporting the bed material, i. e bed load.

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Q. Given that the bed slope of a channel is 1 in 2000 and the discharge is 60 cumecs. The depth of the channel is fixed and is given as 2 m. The tractive force needed for the movement of bedload is? Take critical velocity ratio as 1.1.

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Q. What cause is prime responsible for the heavy movement of water from main canal to branch canal?

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Q. Water in which condition or state carry a maximum amount of sediment?

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Q. What minimum value of shear stress is needed to move the sediment?

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Q. Design a channel carrying a 30 cumecs. The median grain diameter is taken as 0.5 mm. The bedload concentration is 60 p.p.m by weight. Use Lacey’s Regime perimeter and Meyer-peter’s formulas.

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Q. The scouring and silting on the river banks raise the flood levels for the particular discharge.

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Q. The phenomenon of sediment transport increases maintenance work and sometimes leads to huge economic loss.

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