PLTW IED final exam Questions And Answers Graded A+

BIG FOUR - Chemical, Civil, Electrical, Mechanical Chemical engineering - Apply scientifically the principles of chemistry, physics, and engineering to design an operation of plants that undergo chemical changes during their processing. ・ Responsible for new and improved products and processes Civil and Construction engineering - •plan, design, and supervise the construction of facilities in both the public and the private sectors •projects vary wildly in nature, size, and scope. •ex: space satellites, launch facilities, offshore structures,, bridges, buildings, etc. Electrical and electronics engineering - •deals with the motion of electrons in metals •focused on: large electrical systems, motors and generators, electrical circuits in buildings, power transmission systems, electrical generation plants. Mechanical engineering - • Apply the principles of mechanics and energy to the design of machines and devices •most often associated with devices that one but includes thermal designs. •vibration analysis •lubrication •gears and bearing Design process (long) - 1. Identify problems & opportunities (the need) 2. Grams a design brief (criteria) 3. Investigate & research 4. Generate alternative solutions 5. Choose a solution 6. Developmental work (developed solution) 7. Model & prototype8. Test and evaluate 9. Redesign and improve 10. Communicate processes and results Design process (brief) - 1. Define the problem 2. Generate concepts 3. Develop a solution 4. Construct and test a prototype 5. Evaluate the solution 6. Present the solution (communicate results) Visual design elements (8) - •point •line •color •value •shape •form •space •texture Point - Most basic element of design • has position but no dimension •can be described by coordinates on a plane •used to indicate location