• Exams

  Exam 2, problem 18

  Posted by Nazrul on March 13, 2020 at 2:18 pm

  For Exam 2, problem 18
  -Flow direction wasn’t too bad (CC. pg.19-20)… if i guessed the wrong direction then the sum of Qin vs. Qout at that ‘node’ was not equal. When that happen i would just change the direction.

  -K value is what I struggled with, using K=(10.44*L)/(D^4.87*C^1.85)… L and D were in feet, so unsure how i obtained the wrong answer… i see now that diameter was kept in inches…
  Ex. Kab= 10.44(25ft)/(1ft^4.87*100^1.85)= 0.0521 <– what am i doing wrong because answer was 2.899×10^-7

  -Flow correction equation also got me, because i didn’t use the one for gallons; instead i had used the one for cfs… so had to re-plug and chug… won’t be making that mistake in the future.

  Thanks in advance,

  Nazrul replied 5 years, 9 months ago 1 Member · 0 Replies
• 0 Replies

Log In to Reply