Question

What is the coefficient of permeability in double composite liner system?

(a) 10^-2

(b) 10^-3

(c) 10^-4

(d) 10^-5

I got this question during an interview for a job.

My doubt stems from Landfill Disposal Guidelines in chapter Landfill Disposal of Hazardous Waste Management

Answer 1

Correct answer is (a) 10^-2

Easiest explanation: The coefficient of permeability in double composite liner system 10^-2 cm/sec and primary leachate collection layer is of thickness 30 cm.