PLTW midterm review Questions And Answers Graded A+

Steps of the Design Process - Answer-1. Define Problem 2. Generate Concepts 3. Develop a Solution 4. Construct and Test Prototype 5. Evaluate Solution 6. Present Solution Rules for Brainstorming - Answer-1. No criticism 2. Quantity over quality 3. Piling-on 4. Free-for-all Prototype - Answer-A Working model of the actual design. Section Views - Answer-Used to show "inside" details not apparent on the exterior of the part. Design Brief - Answer-A written plan that identifies a problem to be solved, its criteria, and its constraints. Converting Units - Answer-Desired units over given units Short-Break Line - Answer-cut the object to show interior view/material Design Statement - Answer-A part of design brief that challenges the designer, describes what a design solution should do without describing how to solve the problem, and identifies the degree to which the solution must be executed. Types of Enginerring - Answer-1. Civil 2. Electrical 3. Mechanical 4. Chemical Vanishing Point - Answer-A point on the horizon at which parallel lines converge Long-Break Line - Answer-A line which indicates that a very long objects with uniform detail is drawn foreshortened Multi-View Drawing - Answer-A drawing which contains views of an object projected onto two or more orthographic planes.Object Line - Answer-A heavy solid line used on a drawing to represent the outline of an object. Section Lines - Answer-Lines that are used to represent the material through which a cut is made in order to show an interior sectional view. Hidden Line - Answer-A line type that represents an edge that is not directly visible, because it is behind or beneath another surface. Leader Line - Answer-Line which indicates dimensions of arcs, circles and detail Accuracy - Answer-The closeness of measurements to the correct or accepted value of the quantity measured Precision - Answer-The quality of being reproducible in amount or performance Significant Digits - Answer-All the valid digits in a measurement, the number of which indicates the measurement's precision Measurement Used in the USA - Answer-United States customary Empirical Rule - Answer-1 standard = 68%, 2 standard = 95%, 3 standard = 99.7% of the mean when the histogram is well approx. by a normal curve