1) What is a file format commonly used for 3D printing and computer-aided design and is an acronym that stands for stereolithography? a) CAD b) LCD Screen c) .STL d) Group e) Motor f) Filament 2) What is the use of computer-based software to aid in design processes. Also called Computer Aided Design? a) CAD b) LCD Screen c) .STL d) Group e) Motor f) Filament 3) What is the Tinkercad tool for joining two or more shapes in order to make a hole in the shape(s)? a) CAD b) LCD Screen c) .STL d) Group e) Motor f) Filament 4) What is a type of flat panel display which uses liquid crystals in its primary form of operation? Also, stands for Liquid Crystal Display. a) CAD b) LCD Screen c) .STL d) Group e) Motor f) Filament 5) What is a series of parts on a 3D printer that handle the moving and processing of plastic filament? a) CAD b) LCD Screen c) .STL d) Group e) Extruder f) Filament 6) What is the mechanical part of the 3D printer that extrudes the filament. It conducts the thermal energy provided by the heating cartridge and block to the filament, melting it. a) CAD b) Nozzle c) .STL d) Group e) Extruder f) Filament 7) This item is one continuous slender plastic thread which is spooled into a reel for purpose of storage and 3D printer feeding? a) Extruder b) Nozzle c) Filament d) Extruder e) Motor f) Group 8) On a 3D printer, what is used to move the extruder or the build platform along the x, y, and z axis? a) Extruder b) Nozzle c) Filament d) Extruder e) Motor f) Build Platform 9) When an object that has height, width, and depth it is this… a) Workplane b) Cooling Fan c) 3D d) Build Platform e) Extruder f) Nozzle 10) This is also called the build plate, print bed, or build bed, the build platform is the part of the printer where the object is printed. a) Workplane b) Cooling Fan c) 3D d) Build Platform e) Extruder f) Nozzle 11) This blows a stream of cold air just under the nozzle, cooling off freshly-extruded plastic. a) Workplane b) Cooling Fan c) 3D d) Build Platform e) Extruder f) Nozzle 12) In 3D Design (Tinkercad) this is the area on a computer screen where you work and arrange your design. a) Workplane b) Cooling Fan c) 3D d) Build Platform e) Extruder f) Nozzle

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