{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

CEE_597_Midterm_1994

CEE_597_Midterm_1994 - CEE 597 Risk Analysis and Management...

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

View Full Document Right Arrow Icon
CEE 597 - Risk Analysis and Management Midterm Exam 1994 Test is open book and open notes. Shao work to justify answers. You have 50 minutes to complete this 50 point exam. 1. (9 points) Suppose 8 major kain derailment accidents occur per year, and arrival of "major train derailments" is a Poisson process. a) What is probability of one or more accidents in a given month ? b) If I started a special investigation of major derailments, what is mean and variance of time until 12 major derailments occur? C) Why is a Poisson process a good model for "major derailments" ? 2. (15 points) Consider the network below. a) What are the minimal cut sets ? b) If all components have reliability R = 99%, provide a good estimate of reliability of system. C) If you had the opportunity to improve the reliability of just one component, which should you upgrade ? d) Draw a fault tree to allow calculation of the failure probability for system above. (You do have to do the calculation.) e) What is reliability of the system described by the fault tree below if all components have reliability R = 99%. System Failure
Image of page 1

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

View Full Document Right Arrow Icon
CEE 597 - Risk Analysis and Management Midterm Exam 1994 3) (8 points) A hospital examined the frequency and source of calls for people requiring attention for cardiac problems, and the probability a call corresponds to a "serious heart attack." They found: Location Qfdh home industrial location business location
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern