Multiple choice Coarse flour is separated from fine flour by the process of threshing hand picking winnowing sieving decantation Reveal answer Fill a bubble to check yourself D Correct answer Explanation The method of sieving is used to separate coarse flour from fine flour. The sieve is a shallow vessel with small holes in it. The fine flour being heavier falls down below the sieve, and the coarse flour being lighter remains on the sieve.