4114Chemical EngineeringMedium
Which of the following equations as suggested by Colebrook and White gives the increase in roughness of a new surface (ε0) with age/time (t) (where, ε = roughness of the surface after time’t’. α = a co-efficient to be experimentally determined)?
Aε = ε0 + α.t2
Bε = ε0 + α.t4
Cε = ε0 + α.t
Dε = ε0 + α.t3
Correct answer
C. ε = ε0 + α.t
Explanation
The correct answer is ε = ε0 + α.t.