Question

A number of isochrones can be drawn for water levels in piezometric tubes at the same time t.

(a) True

(b) False

I got this question in my homework.

My doubt stems from Terzaghi’s Theory of One Dimensional Consolidation in division One Dimensional Consolidation of Geotechnical Engineering I

Answer 1

Right answer is (b) False

To explain I would say: Since the water levels in the piezometric tubes at a given time remain in a specific position and the isochrones represent the water levels in piezometric tubes at the same time, a single isochrone is drawn at a given time. We have to note that a number of isochrones can be drawn for water levels in piezometric tubes at different time intervals t1, t2, t3 etc.