Question

A regime canal carries silt of median size 0.25mm. the Lacey's silt factor of this silt is

• A. 0.66
• B. 0.88
• C. 0.44
• D. 0.22

Answer 1

The correct option is B 0.88

Lacey's silt factor (f)

$=1.76\sqrt{d_{mm}}=1.76\sqrt{0.25}=0.88$