CE444-APPLIED HYDRAULICS
SPRING 2016
SECOND MIDTERM
APRIL 8, 2016, 1500-1550

Name: ______________________ Red ID __________________ Grade: _________

Instructions: Closed book, closed notes. Use engineering paper. When you are finished, staple your work in sequence (1 to 4), and return this sheet with your work.

  1. (25%) Calculate the discharge Q (cfs) for an asphalted cast-iron pipe of diameter D = 10 in and head loss per unit of length hf/L = 0.008. The water temperature is 65oF.

  2. (25%) Determine the diameter of a pipe to conduct a Q = 2.5 m3/s between two reservoirs A and B. Reservoir A is at elevation 520 m, and reservoir B at elevation 390 m. The distance between the reservoirs is 4200 m. Neglect all minor losses. Assume f = 0.015 and T = 20oC.

  3. (25%) What is the change in head (of water) for a 0.7-m diameter orifice in a 1-m diameter pipe carrying a discharge of 2 m3/s of water? Assume T = 20oC.

  4. (25%)

    1. What are the two main reasons for the 17th Street Canal levee failure during Hurricane Katrina?

    2. According to the ASCE Hurricane Katrina External Review Panel. what institutional deficiencies led to failure of the levee system?

    3. What are the units of kinematic viscosity?

    4. What is the main condition leading to cavitation? When is this condition produced?

    5. What forces are considered in a static analysis (stability) of a pipe bend?