Download midterm-closedpart - Civil, Environmental and Architectural

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)