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The average grain size of the bed material is 0.16 mm for medium silt, Lacey’s silt factor is likely to be _______

The average grain size of the bed material is 0.16 mm for medium silt, Lacey’s silt factor is likely to be _______ Correct Answer 0.70

Lacey’s silt factor (f) is given by f = 1.76 d1/2 where d is the average particle size in mm. F = 1.76 (0.16)1/2 F = 0.704.

Related Questions

Consider the following statements regarding design of channel by Lacey and Kennedy: 1. The theoretical concept of silt transportation is the same in both the theories. 2. Lacey improved upon Kennedy’s formula. 3. There are no defects in either the theories of Lacey or of Kennedy. Which of the above statements are correct?
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Courses of Action :
I. The people residing near the river should be shifted to a safe place.
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III. The silt and mud from the river bed should be cleared immediately after the receding of the water level.