7. If Re = 0.5, what is the friction factor in a flow through a smooth...
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7. If Re = 0.5, what is the friction factor in a flow through a smooth pipe of any size? (a) 64 (b) 128 (c) 32 (d) 256 8. Kinetic energy head is represented by which head term in the mechanical energy equation? (a) z (b) p/pg (c) V2/2g (d) p/pg+z 9. For a pipe flow with Reynolds number of 500, what is the minimum length of pipe in terms of pipe diameters required to achieve fully developed flow? (a) 13 (b) 10 (c) 30 (d) 3 10. An artificially lined channel finished with smooth steel has a hydraulic radius of 1.25 ft, decreases depth at a slope of 0.0002. At a depth of 4 ft, what is the Froude number for this open-channel type of flow? (a) 1.2 (b) 7.2 (c) 0.12 (d) 0.82 7. If Re = 0.5, what is the friction factor in a flow through a smooth pipe of any size? (a) 64 (b) 128 (c) 32 (d) 256 8. Kinetic energy head is represented by which head term in the mechanical energy equation? (a) z (b) p/pg (c) V2/2g (d) p/pg+z 9. For a pipe flow with Reynolds number of 500, what is the minimum length of pipe in terms of pipe diameters required to achieve fully developed flow? (a) 13 (b) 10 (c) 30 (d) 3 10. An artificially lined channel finished with smooth steel has a hydraulic radius of 1.25 ft, decreases depth at a slope of 0.0002. At a depth of 4 ft, what is the Froude number for this open-channel type of flow? (a) 1.2 (b) 7.2 (c) 0.12 (d) 0.82
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