Practice Exam 1

# Practice Exam 1 - Louisiana State University CM3400(Spring...

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Louisiana State University CM3400 (Spring 2008) Practice Exam 1 1 A single letter-size formula sheet is allowed. Problem 1 ( 20 points ) Calculate the change in length of a 100-ft long steel bridge girder that is exposed to a temperature range of -25 to 110°F (Esteel = 30 x 10 6 psi, and α = 0.0000065 in/in o F). If this bridge is supported by a 65-ft steel cable that experiences a total deformation of 0.33in, calculate the stress in this cable.

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Louisiana State University CM3400 (Spring 2008) Practice Exam 1 2 Problem 2 ( 30 points ) If a sieve analysis test was conducted on an aggregate source and resulted in the following data: Sieve size (in) Weight retained (g) 3 1.62 2 2.17 1.5 3.62 ¾ 2.27 3/8 1.38 pan 0.21 Calculate the percentage passing for each sieve and sketch the general shape of the gradation curve for this aggregate source.
Louisiana State University CM3400 (Spring 2008) Practice Exam 1 3 Problem 3 ( 40 points ) a) An asphalt binder is tested to determine its grade at high temperature. Results are

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## This note was uploaded on 06/22/2009 for the course CM 3400 taught by Professor Hassan during the Spring '09 term at LSU.

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Practice Exam 1 - Louisiana State University CM3400(Spring...

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