In a 4.2 in. uncoated cast iron pipe, 0.08 cfs of water flows at 60°F. Determine f from Fig. 10.14.

In figure 10.14

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D2 (2gh, 1/2 Re, rle=- 10 104 6 8 10 4 10 2. 0.100 0.090 Fully rough turbulent flow- 0.080 0.070 0.05 0.04 0.060 0.03 0.050 0.02 0.015 0.040 0.01 0.008 64 0.006 Re 0.030 0.004 0.025 0.002 0.001 0.0008 0.0006 0.020 0.0004 0.015 0.0002 0.0001 Smooth pipes 0.00005 0.010 0.009 0.008 0.00001 6 8 104 4 6 8 10 6 8 10 10 2 4 105 2. 4 6 8 10 VD Re 00 2. Laminar flow |||| ||| | Friction factor, f