Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which construction reduces permeation through a plastic tank?

  • A.A thicker wall, which increases the distance the molecules must travel and therefore eliminates the permeation
  • B.Nothing
  • C.A coextruded tank incorporating a barrier layer of a material through which the hydrocarbons diffuse far more slowly
  • D.A multilayer wall with a barrier layer

Answer: D

A barrier layer within a multilayer wall cuts permeation dramatically. The last option describes exactly that construction, which makes it a correct and more detailed version of the same answer. Checking which component actually carries the load settles most questions of this kind at once. A symptom that appears under one condition and not another is what narrows the diagnosis quickly. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.