AFAB Study Guide Solved Questions Set - A+ Rated Study Resource

AFAB Study Guide Solved Questions Set - A+ Rated Study Resource The Core Material central member of an assembly, T or F? - answer - True Composite structures manufactured with a core material between two thin face sheets are sometimes referred to as - answer - Sandwich construction composite What does the core material give a composite structure? - answer - All the above -compressive strength -shear strength -tension strength A composite blade with a central foam core, or honeycomb core, will eliminate most flexing of the skin because the core is uniformly stiff throughout the blade. T or F? - answer - True Which core has the greatest strength-to-weight ratio? - answer - Honeycomb core Which type of core material is more forgiving? - answer - Foam core Which of the following are characteristics of honeycomb cores? - answer - All the above -high strength to weight ratio -high compressive strength -uniform distribution of stress -rigidity and fire resistant Which of the following must be done when repairing honeycomb core in a composite sandwich component? - answer - All the above -line up the ribbon to the original construction -use same core used in construction -use same cell shape Honeycomb cores are generally joined together with film adhesive, usually in the form of tape. - answer - False Which of the following are differences found in foam cores? - answer - All the above -densities and types -heat resistance -core used for repairs -structural applications Which of the following type of foam core can be used ONLY with epoxy resin AND can be cut with a hot wire cutter? - answer - Styrofoam Which of the following type of foam core can be used with either epoxy or polyester resin and CANNOT be cut with a hot wore cutter? - answer - Polyurethane foam Which of the following type of foam core can be used with both epoxy and polyester resins AND CAN be cute with a hot wire cutter? - answer - PVC Other types of cores that can be used in aircraft construction are aluminum and balsa wood. T or F? - answer - True Which of the following are the 3 primary factors that are considered when analyzing manufacturing costs? (Select all that apply). - answer - material cost, fabrication and assembly time A large difference between composites and aluminum is the fabrication time. T or F? - answer - F Composites lend themselves well to forming complex, aerodynamically contoured shapes. T or F? - answer - True Which of the following are advantages of heat and pressure? - answer - All of the above -facilitate the complete saturation of the fiber material -squeeze out of excess resin from the reinforcing fibers -accelerates the curing process -eliminates air pockets between fabric layers Which manufacturing method uses a male and female mold? - answer - Resin Transfer Molding (RTM) Which manufacturing method that applies atmospheric pressure to a part while curing by sealing the part in a plastic bag and removing all the air? - answer - Vacuum bagging Which manufacturing method uses a long continuous fibers that are wound around a mandrel? - answer - Filament winding Which type of manufacturing method uses a two-part mold with dry fabric laid into the mold, and resin is pumped into the mold? - answer - Resin Transfer Molding (RTM) Which type of manufacturing process is a relatively low cost automated method of manufacturing composite components? - answer - Pultrusion Which of the following manufacturing methods/technique that involves laying pre-preg material by hand into a mold? - answer - Hand layup Molding means to pull one or more parts from a mold. T or F? - answer - True Composites do not conduct electricity, so lightening protection must be built into the component. T or F? - answer - True The new generation of epoxy-based paints are only used on composite parts. T or F? - answer - False Tedlar is a plastic coating that serves as an additional moisture barrier. T or F? - answer - True Some of the concerns with bo