Q. What are the types of sediment load?

View solution

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

View solution

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

View solution

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

View solution

Q. Which of the following statement is wrong?

View solution

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 ____________

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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.

View solution

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

View solution

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

View solution

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

View solution

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.

View solution

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

View solution

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

View solution

Q. Which of the following statement is wrong?

View solution