Engineering NOCTI

CAD - answer-Computer Aided Drafting/Design ANSI - answer-American National Standards Institute ISO - answer-International Standards Organization Mockup - answer-A nonfunctional model devised to expose its parts for study, training or testing. Systems Model - answer-Input -> process -> output -> feedback 7 resources of input - answer-time, energy, tools, materials, people, capital, information Types of outputs - answer-expected, unexpected, desirable, undesirable Engineering Design Process - answer-Step 1: Define the problem Step 2: Research the problem Step 3: Imagine - develop possible solutions Step 4: Plan - choose the best solution Step 5: Create a prototype Step 6: Evaluate & Improve - test the prototype and make needed adjustments Step 7: Communicate - Share the results Prototype - answer-A full-scale working model used to test a design concept by making actual observations and necessary adjustments. OSHA - answer-Occupational Safety and Health Administration, a government agency in the Department of Labor to maintain a safe and healthy work environment Lathe - answer-A machine used for shaping by turning material. Six simple machines - answer-Pulley Lever Wheel and Axel Wedge Screw Plane Shear - answer-Sliding force Tension - answer-Pulling force Compression - answer-A force that pushes on or squeezes a material. Bending - answer-Compression and tension force Torsion - answer-act of twisting; stress due to twisting forces exerted Consensus is a - answer-general agreement The technician should use a ___________ to cut a keyway in a shaft. - answer-milling machine OEM - answer-Original Equipment Manufacturer Forging - answer-A process by which metal is heated and shaped by plastic deformation by suitably applying compressive force. Ergonomics - answer-The study of workplace equipment design or how to arrange and design devices, machines, or workspace so that people and things interact safely and most efficiently. Which of the following is a ferrous metal? a. aluminum b. copper c. magnesium d. mild steel - answer-d. mild steel Which of the following is the earliest example of engineering? a. Gutenberg press b. Moving assembly line c. Archimedes screw d. Cloth weaving loom - answer-c. Archimedes screw Which of the following is an example of an inextinguishable energy source? a. Wind b. Nuclear c. Natural gas d. Coal - answer-a. Wind A video game company would like to test a new game controller design. Which of the following would be the best way for them to start testing the comfort and effectiveness of the controller? a. Mockup b. Prototype c. Scale model d. Sample - answer-b. Prototype The branch of engineering that combines physical science, life science, mathematics, and economics to processes that convert raw materials info more valuable forms is called ______________ engineering. - answer-Chemical The main components of the engineering design process include identifying, defining, selecting, implementing, and ______________. - answer-Evaluating Using Ohm's Law, how much current is going through the following circuit? 15.5 and 5 Ohms resistance - answer-3.1 amps Which step of problem solving helps to determine if a certain product is of value? a. Identify possible solutions b. Identify the problem c. Implementation d. Evaluation - answer-d. Evaluation Tom wants to research how materials and parts move through his plant in order to see where and how the company may be able to increase productivity. This is the study of _________________. - answer-Production flow What is the cubic area of the object that is 5 ft long, 2.5 ft wide, and 3.5 ft tall? - answer-43.75 ft^3 In the engineering design process, stating the problem is the _________ step. - answer-first What does this symbol stand for? x̄ (x-bar) - answer-mean What does this symbol stand for? σ - answer-standard deviation What does this symbol stand for? Σ (sigma) - answer-sum of Using the information given, determine the break-even point. Fixed costs = $35,000 Variable cost per unit = $1,500 unit price = $2,000 - answer-70 units The core concepts of technology are ______________. a. Skillful research, ethical behavior, and cooperative group b. Skillful research, cooperative groups, and critical thinking c. Technical writing, ethical behavior, and critical thinking d. Skillful research, ethical behavior, and critical thinking - answer-d. Skillful research, ethical behavior, and critical thinking The proper second step to refine a potential product is __________ a. Modify b. Reset c. Build product d. Test - answer-d. Test Which of the following formulas is used to determine the area of a circle? a. A = πr^2 b. A = 1/2bh c. A = LxWxH d. A = 2πr - answer-a. A = πr^2 In order to reduce friction between a workpiece and a cutting site, _____________ is used. - answer-cutting fluid A steel container weighing 90 pounds has a coefficient of friction equaling 0.61. How much force is required to move this box on a dry and clean surface? - answer-54.9 lbs The ability of a material to be stretched into a longer, thinner shape is called a. Conductivity b. Malleability c. Hardness d. Ductility -