NOCTI Pre Engineering Exam Study Guide Graded To Pass!!!

What are the major engineering fields? - Civil Mechanical Electrical Aerospace Structural method would generate a three view drawing? - orthographic The core concepts of technology are - skillfull research, ethical behavior, and critical thinking characteristic of effective communication? - open discussion Who do engineering interact with? (Other technical personnels on the job) - Engineers Scientists Technologists Technicians Craftsmen What important milestones have occurred during the progression of the engineering field? - Henry Fords assembly line Wright brothers first flight Thomas Edison's light bulb Robert Goddars' liquid fuel rockets What are the important principles of the problem solving process? - identification of a need, problem definition, researching, constraint, criteria, alternative solutions, analysis What are the steps in the design process? - Identify the need, research and gathering info, develop solution (alternative solutions), choose a solution (analysis), construct a prototype, test and evaluate How to analyze solution/ identifying strengths and weaknesses? - Efficiency Cost Safety Functionality Availability of materials Durability How to develop details of a solution? - Scale model Inventor (dynamic simulation) Orthographic Isometric drawing Techno CNC + 3D printing How to develop, test, and redesign prototypes? - Test for safety and durability Test for efficiency How to explain components of set up, machining, casting, molding, welding, and finishing? - Turning- lathe Milling- makes square objects Casting- turns liquid into mold Welding- arc, spot, gas (oxyacetylene) Undercutting- welding reduce cross sectional strength Finishing- painting How to identify and use common hand tools - Straight edge- ruler VIC (vernier caliper)- measures inside/outside distanxes How to identify and properly use fasteners? - Machine srews- hex nuts Wood screws- course thread/pointy Sheet metal- pointed heads, sharp fine threads Thread Rotation= UNC 1/4(diameter)-20(thread per inch)-2(thread length)-2A(type of thread) How to estimate and measure the size of objects using SI and US units? - 1 inch = 2.54 cm 100 ft = 28.3 L 1 gal water = 7-8 lbs How to explain the role and quality control in manufacturing? - -Controls the quality -bSigma- stands for manufacturing for standardization -International organizations -Manufacturing tolerance How to measure with percussion to olds and instruments? - 7.00 sleeve(0.5) 0.25 thimble What role does quality control plays in assembly and fabrication? - -Improves quality and reputation -Reducing execution time -Lower costs What are the roles of supplying and outsourcing? - -Reordering levels are set -No over stocking (to attain materials in time w/o overstocking) What does the order and methodology of the assembly process consist of? - Operations Storage Transportation/Delays Inspection What are the attributes of common materials? - Ferrous- high weight/ lower conductivity/ easily corrodible/ magnetic Non Ferrous- malleable/ high conductivity