Exam 4 2016.pdf - CME 330 FLUID MECHANICS Final Exam Fall...

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CME 330 FLUID MECHANICS Final Exam, Fall 2016 Name: __________________ 100 points max Dr. I. C. Escobar Note: This is a closed book/notes exam, but one sheet of notes is allowed. There are four (4) problems. The points for each question are noted by the question number. Good Luck. 1. (20 points) Find the Reynold’s number through a 2 inch Schedule 40 pipe where the flow rate of the mercury solution is 30 ft 3 /hour at 30 o C. The specific gravity of the mercury solution is 13.5 and the viscosity is 1.5 cP. Is the flow laminar or turbulent?
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2. (30 points) Estimate the elevation required in the upper reservoir to produce a water discharge of 10 cfs in the system.
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3. (50 points) Remember this?!?! For the pipe network shown at a water (room temperature) flow rate of 4 gpm (gallons per minute), Legend: From top to bottom, pipes are in the following order: (1) past valve 2: ½ inch SCH 40, (2) past valve 3: 1 inch SCH 40 with 90 o threaded elbows, (3) past valve 4: ½ inch SCH 40, (4) past valve 5: 1 inch to ½ inch contraction/expansion, and (5) past valve 6: 1 inch iron pipe.
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