sample-exam2-s03

sample-exam2-s03 - ENGR 160 Exam 2 Spring '03 Name Section...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
ENGR 160 Exam 2 Name Section # Spring '03 ENGR. PROBLEMS /50 PROGRAMMING /50 TOTAL: /100 DIRECTIONS: The reference sheet plus one extra page of notes may be consulted during the exam. Print your name on all pages. Express all answers with proper significant digits unless directed otherwise. Engineering Problems: 1. (15%) A group of machine parts, made of several components, were tested repetitively under a variety of loads until they failed. The following data indicate the loads and the number of cycles until failure occurred. Load (lb f ) N (cycles to failure) 1.0 x 10 1 4.10 x 10 6 2.0 x 10 1 1.96 x 10 6 3.0 x 10 1 1.00 x 10 6 4.0 x 10 1 5.14 x 10 5 Given that the data form a straight line (or close to one) on semi-log graph paper, use the method of least squares (for an exponential equation) to determine the equation relating cycles to failure as a function of load. Show all your work and give your answer using the appropriate variables in the equation. YOU DO NOT NEED TO GRAPH THE DATA.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
ENGR 160 Exam 2 Spring ‘03 Page 2 2. (25%) The beam (AB) shown below is in static equilibrium and has a uniform linear mass of 1.25
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/26/2008 for the course ENGR 160 taught by Professor Sengupta during the Fall '07 term at Iowa State.

Page1 / 6

sample-exam2-s03 - ENGR 160 Exam 2 Spring '03 Name Section...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online