12-100hw9

# 12-100hw9 - 12-100 Introduction to Civil and Environmental...

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Unformatted text preview: 12-100 Introduction to Civil and Environmental Engineering Homework 9. Please use three significant figures in your calculations. Spring 2008 Due: 23 April 2008 1. A large cylindrical storage tank has a diameter of 20 m and is filled to a depth of 9m. It has a valve at its base with a diameter of 35 cm and loss coefficient K of 2.4. How long will it take to drain half of the volume of the tank? A rectangular tank has plan dimensions of 3m by 5m and is filled to a depth of 6.4m. It has a valve at its base with a diameter of 24 cm and a loss coefficient K of 1.95. How long will it take for the fluid velocity to abate to one-half of its original intensity? A cylindrical tank has a diameter of 12.5 feet and holds water with a depth of 27.2 feet. The tank has a 4-inch diameter valve at its base (with a loss coefficient K of 3.75) that is opened for 19.1 seconds. Determine the volume of water, in gallons, that is discharged in that time period. 2. 3. 12-100 Introduction to Civil and Environmental Engineering Homework 9. Grade Sheet Name: _____________________________________________ Total score: _____ P1. Geometry calculations Solution for time duration Unit conversions (if needed) 30 points total 10 15 5 _____ _____ _____ P2. Geometry calculations Solution for time duration Unit conversions (if needed) 30 points total 10 15 5 _____ _____ _____ P3. Geometry calculations Solution for volume Unit conversions (if needed) 40 points total 20 15 5 _____ _____ _____ ...
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## This note was uploaded on 01/25/2010 for the course CE 12100 taught by Professor Irvin during the Spring '08 term at Carnegie Mellon.

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12-100hw9 - 12-100 Introduction to Civil and Environmental...

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