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

Discussion

Assertion (A): Plume rise deserves careful calculation.

Reason (R): Maximum ground level concentration varies roughly as the inverse square of effective height.

Select the correct answer from the options below.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Correct answer: Both A and R are true, and R is the correct explanation of A

Because the maximum goes as \(1/H_e^2\), an error in plume rise is squared in the predicted concentration - overestimating rise by 30% understates the maximum by more than a third. That sensitivity is exactly why the calculation deserves care.

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

Post your comment

Please log in or register to post a comment.