MEC E 265 Midterm Exam

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aayai
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MEC E 265 Midterm Exam
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2013-10-28 10:32:33
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mechanics
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mechanics
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  1. 1.1. What is the definition of Engineering Design?
    • - the process of creating a system, component or process to meet desired needs
    • - SACTE: synthesis, analysis, construction, testing, evaluation
  2. 1.2.  What are the three steps of Product Development?
    • STEP 1: Starts with Problem Definition and ends with choosing a model and its critical components
    • STEP 2: Starts with Design Details and ends with Prototype
    • STEP 3: Perfection of prototype and manufacturing
  3. 1.3. When is it best to make design changes?
    Between Problem Definition, Concept Design, and or Detail Design
  4. 1.3. Why is Systematic Design necessary?  Also, give some statistics of cost vs influence.
    • The decisions made in the design phase directly affect the manufacturing costs.  
    • The design phase has 70% influence on the entire project.
    • Design Phase is 5% of total cost, but 70% influence.
    • Manufacturing is 50% of total cost, but 20% influence.
  5. 1.4. What are the three design classes?
    • CLASS 1: New invention
    • CLASS 2: Design that has flexible solutions
    • CLASS 3: Routine design
  6. 1.5. What are the three phases of Principal Design?
    • PHASE 1: Planning
    • PHASE 2: Conceptual design and alternatives
    • PHASE 3: Modelling, making, everything else.  Ends with Critical design review.
  7. 1.6. What is concurrent planning?
    • Concept and generalization
    • Design
    • Testing and Prototype
    • Development
    • occur all at once.
  8. 1.7.1. What are the basic elements of Project Management?
    • Client
    • Team
    • Team Leader
    • Contract
    • Budget
    • Time
  9. 1.7.3. How should a design team be managed?
    • Assign clear roles
    • Make sure everyone agrees on a goal
    • Define procedure for getting things done
    • Develop good interpersonal relationships
    • Choose a project manager.
  10. 1.8.4. Name 6 uses of models in design.
    • Sketches
    • Solid modelling
    • Engineering analysis
    • Assembly
    • Manufacturing drawings
    • Simulation
  11. 5.1. The engineering conduct is governed by:
    Engineering, Geological and Geophysical Professions Act
  12. 5.2. Give the three levels of engineering failure.
    • LEVEL 1: Physical Flaws
    • LEVEL 2: Errors in Process
    • LEVEL 3: Errors in Perspective or Attitude
  13. 5.2. Give three examples of engineering failure LEVEL 1.
    • LEVEL 1: Physical Flaws
    • Corrosion
    • Metal fatigue
    • Excessive vibrations
  14. 5.2. Give three examples of engineering failure LEVEL 2.
    • LEVEL 2: Errors in Process
    • Calculation errors
    • Wrong assumptions
    • Design problem is misunderstood
  15. 5.2. Give three examples of engineering failure LEVEL 3.
    • LEVEL 3: Errors in Perspective or Attitude
    • Lack of communication
    • Impulsive decision making
    • Unethical behaviour
  16. 5.2. Give one historical example for each type of engineering failure.
    • LEVEL 1: Comet jets, cracks in windows
    • LEVEL 2: Sinking of Herald of Free Enterprise, open door
    • LEVEL 3: The Challenger Crash
  17. 5.3. How can we quantify risk?
    Risk = [probability of accident] x [financial loss or deaths per accident]
  18. 5.3. Risk analysis is a three step process.  Name each step.
    • STEP 1: Risk Analysis
    • identify hazards, consequences, probability
    • STEP 2: Risk Assessment
    • find alternatives
    • STEP 3: Management Decisions
  19. 4.1. Name some keywords in writing technical reports.
    • Reader is intelligent but uninformed
    • Use an outline
    • Be objective
    • Keep sentences short and simple
    • Use third person, passive voice
  20. 4.2. What should a cover page include?
    • Project Name
    • Type of Report
    • Information about Authors
    • Date
    • Affiliation
  21. 4.2. What is a cover letter?
    Defines the problem being considered and explains the results of the group work.
  22. 4.2. What should an abstract include?
    • Brief description of design problem
    • Methodology
    • Predicted performance
    • Test day results
  23. 4.2. What should an introduction include?
    • Describes scope, purpose of investigation
    • Give enough context so the reader understands

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