HW 8

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Texas State University *

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2351

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Mechanical Engineering

Date

Dec 6, 2023

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3

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TECH 2351: Statics and Strength of Materials Due: 10/31/2023 1 HW#8 Professional Ethics 1. Facts: Assume that you are the project superintendent in charge of the construction of a commercial facility. The project involves a large, high cost LEED Platinum facility with very tight budget and delivery dates. Additionally, the project is already behind schedule and over cost at the point of speaking. The structural design documents for the foundation design were prepared by XYZ Structural Design Inc., a consulting company. Structural engineer A of XYX Structural Design prepared, designed and stamped the design documents for the foundation design. However, today due a shortage in the inventory of some structural components for the foundation work you decide something needs to be done in order to keep the project on line with time. Further, you believe it will be quite some weeks before new supplies are delivered. The personnel at Structural Design are not available in the near future to recommend design changes that may help keep the project on time. Since you have many years of construction experience you feel very competent in making some changes to foundation design. [33 points] Question: Is it ethical for you to make changes to the foundation design? Explain your position.
TECH 2351: Statics and Strength of Materials Due: 10/31/2023 2 2. Facts: Assume that you are a Mechanical Engineer working on the design of a boiler pressure vessel for a nuclear power plant in west Texas. During the process of selection of the design factor or factor of safety you chose to rely on factor selection guidelines for general design. A couple of years after the plant became operational, leaks are detected in the pressure vessel. The power plant becomes involved in a legal dispute with your design firm over the issue of improper factor of safety selection in the design process. The attorneys for the power plant maintain that design codes and factors of safety that are based on the American Society of Mechanical Engineers (ASME) design guidelines for boiler pressure vessel design should have been used, rather than the general guidelines. [33 points] Question: From standpoint of professionali sm and ethics was the Mechanical Engineer’s design methodology appropriate? Explain.
TECH 2351: Statics and Strength of Materials Due: 10/31/2023 3 3. Facts: Ajax Welding Inc. repair structural members that have defects. Brown Construction Company has used Ajax’s services for many years. Recently Brown had to return several structural steel members that failed during installation. A meeting was held between the two companies to help resolve the issue. The meeting included Hugo Chavez, a representative from Brown, Ralph Walter, an Ajax engineer and Chris Smith, Ajax’s returned goods representative. Chris sticks with the “official position” of Ajax; which is that the welding design and process were all right. However, during the course of the meeting it becomes obvious to Ralph that there is a problem with the design. He suspects that their novice engineer may have used a less than adequate factor of safety. [34 points] Question: Should Ralph say anything during the meeting, in front of Hugo or defer making his suspicion known to Chris after the meeting? Explain.
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