If the equivalent length of a transition piece of ductwork is 10 feet and the main duct in series with it is 20 feet, what is the length used to estimate the total frictional loss?

Question

Quizplus · Accepted Answer

The equivalent length of the transition piece is added to the length of the main duct to estimate the total frictional loss, so the total length used for estimation is 10 + 20 = 30 feet. Therefore, the correct answer is choice C.

If the Equivalent Length of a Transition Piece of Ductwork