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CVEN 3323 Fall 2001 University of Colorado Department of Civil, Environmental and Architectural Engineering CVEN 3323 Hydraulic Engineering Midterm Prof. R. Balaji Date : 10/2/2001 Time : 15 mins Total : 15 points 1.When a small bore vertical glass tube is placed into the free water surface - the water rises into the tube. What is this phenomenon known as? And what is the primary force that is involved in this phenomenon? (1) 2. The base of a dam is bigger than the top, why? Explain your reason by using the appropriate equation. (2) 3. Under equilibrium in pipe flows pressure forces balance out which force? How do you determine if the flow is Laminar? (2) 4. Write the three main equations that govern flow through pipes? (Explain the terms) (3) 5. When does cavitation occur in a pipe flow? (1) 6. What terms in the energy equation contribute to the hydraulic gradient line and energy gradient line? Generally the slope of the energy gradient line in a horizontal pipe flow is equal to what? (1+1) 7. What are Major and Minor losses in pipe flow? (2) 8. Give the general form of the equation to compute minor and major losses in pipe flow. (2)