exam1sol - CE 398 Introduction to Civil Engineering Systems...

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CE 398: Introduction to Civil Engineering Systems Design SAMPLE II of the MID-TERM EXAM Time: 75 minutes QUESTION 1 . (a) A System is defined as a collection of interacting and interrelated objects and rules. (b) Systems monitoring may be described as the examination and recording of the operational characteristics (types and levels of usage, loading, etc.) of the system. May also include the inspection (using humans or sensors) of the physical condition of the system. (c) A probability distribution is defined as the relationship between the values of a random variable and their respective probabilities . (d) Name any 3 phases of civil engineering systems development. Needs assessment, planning, design, construction/implementation, operations, monitoring/inspection, maintenance, termination[ Name any 3 ].. (e) True or False: The shear force in a structural element is always a categorical variable. False. It is a continuous variable. (f) The physical structure, condition, operational features, environment, and other characteristics of a civil engineering system are collectively termed the attributes of the system. (g) Why is the systems approach considered a “big deal” in modern civil engineering? Increasing population (leading to increased demand and loadings); Aging civil systems (most of them have exceeded their design lives) Limited funding for expansion and renewal (civil engineers seek the “biggest bang out of each buck” spent on CE systems Increasing number of visible stakeholders (therefore civil engineers need to incorporate their perspectives in decision making at any phase) (h) List two statistical measures of relative standing: Percentiles, Deciles, Quartiles. Name any two]. (i) To test a claim made about a certain population of systems, Laura took a sample and carried out a hypothesis test and had a certain result. The next day, Ryan took a sample from the same population and carried out a test for the same hypothesis but had the opposite result. Give any 2 reasons that could explain the difference in their results.
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exam1sol - CE 398 Introduction to Civil Engineering Systems...

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