Which type of friction factor problem does not typically require an iterative trial-and-error approach (hint: see table 6.3)? Type 1 Type 2 Type 3 QUESTION 2 How do we adapt our friction flow equations to situations with non-circular pipes? Substitute hydraulic radius in place of diameter. Substitute hydraulic diameter in place of diameter. Take ratio of cross-sectional areas. No modification is needed. QUESTION 3 What can we use to simplify friction loss in fittings so that we can analyze as if it were a straight pipe without fittings? Hydraulic diameter Hydraulic radius Equivalent length Reynolds number QUESTION 4 Sudden expansion of flow from a pipe into a tank has a larger friction loss than sudden contractoin from a tank to a pipe. True False QUESTION 5 Couplings and unions in straight pipes do not contribute to friction loss. True