Download Engineering Design Principles: Questions and Answers and more Exams Engineering in PDF only on Docsity!
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True or False: With advancements in technology in the last 100 years, infant mortality and life expectancy at birth have both declined considerably. - correct answer ✅False True or False : Brainstorming can only be done in small groups, if it is to be done effectively. - correct answer ✅False Civil Engineers often show their designs via modeling and simulation because: A) it is very easy to model and simulate B) to impress their audience (customers) C) It may not be feasible to build prototype civil engineering structures for testing D) They wish to demonstrate their designing and simulation skills - correct answer ✅C) It may not be feasible to build prototype civil engineering structures for testing In the four-step "simple representation" of the engineering design cycle that we are using in class, what are the first two steps?
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A) Problem Analysis and Design Generation B) Problem Analysis and Prototyping C) Design Generation and Deign Evaluation D) Design Generation and Design Realization - correct answer ✅A) Problem Analysis and Design Generation True or False : Engineers typically work in inter-dependent and multi-disciplinary teams - correct answer ✅True A chart used for prioritizing time-critical events, deciding which events can occur concurrently, and identifying slack time is the: A) Organizational Chart B) Gantt Chart C) PERT Chart D) Decision matrix - correct answer ✅C) PERT Chart Which of the following is NOT one of the 14 Grand Challenges for the 21st Century as identified by the National Academy of Engineering?
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D) Design Generation - correct answer ✅D) Design Generation Engineering design experience can be acquired through: A) Testing prototypes B) Observing results of design decisions C) All of these answer choices D) Completing successful projects E) Studying failures - correct answer ✅C) All of these answer choices In PERT chart, "PERT" stands for A) Project Evaluation and Review Technique B) Program Evaluation and Review Technology C) Program Evaluation and Representation Technique D) Project Evaluation and Reproduction Technique - correct answer ✅A) Project Evaluation and Review Technique True or False : When considering a new design option, starting with a rough estimate (a "Back of the envelope" analysis) is a good way
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to test feasibility. - correct answer ✅True A plot of project tasks versus time that graphically depicts the time allotted to each task is the A) Gantt Chart B) Organizational Chart C) PERT chart D) Critical path method - correct answer ✅A) Gantt Chart Engineering encompasses which of the following? A) Coming up with design solutions B) Disposing of resulting systems C) All of these answer choices D) Sustaining solutions across their life cycle - correct answer ✅C) All of these answer choices After using 3d printing software to add support structure and slice your model, you output what to run the printer?
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Which of the following shows the hierarchy and management structure of a group? A) PERT chart B) Venn Diagram C) Organizational Chart D) Gantt Chart - correct answer ✅C) Organizational Chart FMECA is a _________ tool. A) Project management B) Failure analysis C) Rapid prototyping D) Product cost analysis - correct answer ✅B) Failure analysis What was the cause of the walkway collapse at the Kansas City Hyatt Regency, which killed more than 100 people? A) The original design using two threaded suspension rods was modified to use one threaded rod, without accounting for the load
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B) The original design using one threaded suspension rod was modified to use two threaded rods, without suitably accounting for the load. C) The construction team neglected to install washers, to save money D) The steel rods for suspending the walkways were not properly coated to prevent corrosion - correct answer ✅A) The original design using two threaded suspension rods was modified to use one threaded rod, without accounting for the load True or False : If you need to make just a few copies of your designed part, sand casting is a better option than die casting because the molds for sand casting are much less expensive. - correct answer ✅True A project management tool that graphically depicts the amount of time allotted to each task, plotting the project tasks versus time, is the A) Org Chart B) Decision matrix C) PERT chart
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During a brainstorming session, part of the Design Generation phase of the design cycle, which ideas should be ignored or thrown out? A) Expensive ideas B) Overly complicated ideas C) ridiculous ideas D) No ideas should be ignored or thrown out - correct answer ✅D) No ideas should be ignored or thrown out True or False : Forging, rolling, and extrusion are often done in multiple incremental steps rather than as a single-step operation to achieve the final desired shape. - correct answer ✅True Many factors influence design choices. The Challenger disaster was a result of which influence(s)? A) Political B) All of these answer choices C) Money D) Ethics - correct answer ✅B) All of these answer choices
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A project management tool that clearly illustrates task dependencies and is useful for identifying the critical path is the A) Gantt Chart B) Decision matrix C) PERT chart D) Org Chart - correct answer ✅C) PERT chart Cognition refers to the way in which a user learns about a device and masters its _________ A) quirks B) options C) colors D) features - correct answer ✅D) features True or False : The human brain functions better as an image processor than as a calculator. - correct answer ✅True
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A) corrosion B) thermal shock C) impact D) creep - correct answer ✅D) creep True or False : The difference between engineering stress and true stress is that engineering stress is based on the original area while true stress is based on instantaneous area. - correct answer ✅True True or False : Fatigue failure only occurs when a material is loaded beyond its ultimate tensile strength (UTS) - correct answer ✅False What was the design flaw in the Tacoma Narrows Bridge? (type the letters of all that apply) A) the wrong materials were used B) Stiffening trusses were omitted C) The bridge was tampered with
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D) It was a copy of other smaller bridges, and no calculations were done to prove the structural integrity of the longer bridge - correct answer ✅B, D
