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Parameters of Wind Gust Correct Answers Amplitude "a" Raise Time "b" Max Gust Variation "c" Lapse Time "d" Wind Shear Correct Answers Describes how wind speed varies with height. Measured in seconds. Weibull Distribution Parameters Correct Answers Shape "k" Scale "λ" Betz' Law Correct Answers Only 59.3% of kinetic energy from a wind turbine can be converted into mechanical energy. Power Coefficient Correct Answers Turbine efficiency; indicates how efficiently a tur...

The unit used for measuring electrical power usage or production, equal to 1 Joule/second Correct Answers Watt The unit of electric force or "pressure" Correct Answers Work A substance in which all the electrons in the atoms of the substance are tightly bound. The electrons do not easily move from one atom to the next. It is very difficult to get current to flow through. Correct Answers Insulator A substance in which the outer electrons can move freely from one atom to the next. Curre...

A device used to measure wind speed that often incorporates wind direction as well Correct Answers Anemometer the theoretical limit of 59.3% of the available wind power that a rotor can capture. The theory is named for its German developer, Albert Betz Correct Answers Betz limit Devices that use centrifugal force to open or close hydraulic valves in response to rotor speed Correct Answers Centrifugal release unit An apparatus that converts mechanical energy into electrical energy, typic...

aggregation Correct Answers Building several wind energy projects together so that they are treated as one larger project - to improve project economics. airfoil Correct Answers The cross section profile of the leeward side of a wind generator blade, designed to reduce drag and maximize lift. anemometer Correct Answers An instrument used to measure the velocity, or speed, of the wind. angle of attack Correct Answers The angle of relative airflow to a wind turbine's blade. armature C...

Flat Rolling Correct Answers production of a flat plate, sheet, and foil at high speeds, good surface finish, high capital invest, low labor cost Shape Rolling Correct Answers production of various structural shapes such as I beams and trails at high speed, requires shaped rolls and expensive equipment, low labor cost Forging Correct Answers production of discrete parts with a set of dies, requires finishing operations, performed at elevated temperatures Extrusion Correct Answers produc...

The design engineer is responsible for what aspects of a new design? Correct Answers All aspects The manufacturing engineer is responsible for providing: a) Tooling & manufacturing equipment b) Operating sequences c) Manufacturability evaluation d) All of the above Correct Answers d) All of the above Material cost is based on: Correct Answers Part volume, scrap, and volumetric cost of material Which factors are most important for determining direct labor costs?: a) The manufacturi...

Engineering Design Process Correct Answers A systematic, iterative, structured way to help engineers develop many possible solutions to a problem to satisfy humans needs and wants. Iteration Correct Answers Doing something again, like starting over with the design process. Criteria Correct Answers A means of judging. A standard, rule, or test by which something can be judged. Prototype Correct Answers A full-scale working sample used to test a design concept by making actual observation...

Open Molding Correct Answers A fabrication process where the composite materials are exposed to the atmosphere Closed Molding Correct Answers A fabrication process where the composite materials are processed in a two sided mold set or within a vacuum bag Hand Lay-Up Correct Answers An open molding process where the reinforcement is placed manually Spray-up (Chopping) Correct Answers An open molding process where the resin and glass fiber are deposited using a chopper gun Gel Coat...

Design for Manufacture and Assembly (DMFA) Correct Answers Integrates product design process with: • Materials Selection • Manufacturing Methods and Selection • Assembly/Disassembly • Process Planning • Testing • Quality Assurance DFMA Correct Answers • Requires that designers acquire a fundamental understanding of the characteristics, capabilities, and limitations of materials, production methods, machinery, and equipment. • Must consider variability in performance, ...

Thermoset Plastic Correct Answers A polymer that can only be moulded once, if heated again it will burn rather than melt. Thermo Plastic Correct Answers A polymer that can be moulded more than once. Welding Correct Answers The process in which separate metal parts are joined using heat and an extra material. Soldering Correct Answers The process in which electrical components are joined together using an iron. Injection Moulding Correct Answers When molten plastic is pushed into...