The collection efficiency of cyclone separators increases with:1) Decreasing particle size2) Increasing particle density3) Decreasing gas velocity4) Increasing number of gas revolutions5) Increasing cyclone diameterWhich of the above statements are correct?

The collection efficiency of cyclone separators increases with:1) Decr

1.	The collection efficiency of cyclone separators increases with:1) Decreasing particle size2) Increasing particle density3) Decreasing gas velocity4) Increasing number of gas revolutions5) Increasing cyclone diameterWhich of the above statements are correct?
A.	1, 3 and 4 only
B.	2 and 4 only
C.	2, 4 and 5 only
D.	1, 2, 3, 4 and 5
Answer» C. 2, 4 and 5 only