DML Exam Review Questions 2024

which of the following are true: a. sheetmetal refers to workpieces with a high ratio of surface area to thickness b. sheets are defined as <= 1/4" in thickness c. plates are defined as >= 1/4 " in thickness d. pulling, pushing, and stretching are the most common sheetmetal operations - A, B, and C The Lab has the following sheetmetal capabilities: A. shear B. Brake (bending machine) C. punch press for creating holes D. deep drawing/ stretch forming - A, B, C what is the structural benefit of bending sheetmetal edges/ flanges? - makes it more rigid Which of the following are key element to decision matrices? A. clearly defined & weighted objectives B. Justified magnitude assignments with traceable supporting data C. always try to use linear score assignments D. highest scoring concept wins - all of the above why are separate evaluation matrices created for separate functional subunits of a design? - pick the best subunits because we can combine them T/ F manufacturing time is an example of a qualitative assessment? - False What are (4) the things that can cause calipers to measure inaccurately? - failure to zero the calipers before use debris, chips, or burrs failure to hold the jaws perpendicular to the surface inadequate or excessive closing pressure T/ F Your group must have a fully dimensioned, appropriately toleranced part drawing for each part manufactured in the lab - TRUE T/ F If anyone in your group doesn't understand how each part of your design works, that person will be instructed to stop working until they do - TRUE What should do if anyone in your group makes excuses for not completing their work on time or at an acceptable quality: A. accept effort, not excuses and isntrcut the person to redo the assignment B. make a record of tehir work quality or tardiness on your meeting documentation C. if the problem isnt resolved within 48 hr., get Mike involved because youre here to learn D. wait to confront the problem in hopes that doing so may avoid conflict - A, B, C T/ F Purchase orders must be submitted next week before using ANY raw materials in the lab - TRUE T/ F ECN's are used to formally track design changes and corrections through the project prototyping and life- cycle phase - TRUE Groups which care about their success on the course project will read the Project Tips posted on the website and do which of the following: A. review their weekly schedule and plan their individual work assignments B. review part drawings in office hours with a TA to be prepared to make the parts in lab C. complete paperwork outside their formal lab block D. print working copies of non- OTS part drawings for reference during lab E. use 80/20 wisely by selecting pre- cut pieces before cutting longer pieces to length; and only cutting the shortest over-size pieces to the necessary lengths F. bring 1:1 scale printed and trimmed sheetmetal templates to lab to expedite part fabrication