Part 7 (6 points) When designing parts with aluminum alloy, engineers should consider which of the following? CIRCLE THE

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Part 7 6 Points When Designing Parts With Aluminum Alloy Engineers Should Consider Which Of The Following Circle The 1 (96.88 KiB) Viewed 26 times

Part 7 (6 points) When designing parts with aluminum alloy, engineers should consider which of the following? CIRCLE THE LETTER OF ALL THAT APPLY A All aluminum alloys have the same electrical conductivity as copper B. While aluminum alloys are sufficiently hardenable, they are very poor for forming C. Strength and corrosion resistance can be improved through anodizing processes. D. Aluminum alloys have about 1/3 the weight of steel E. Most aluminum alloys are weldable, thus providing enhanced fabrication opportunities F Aluminum alloys have about 2/3 the stiffness of steel Part 8 (6 points) Which of the following statements about copper alloys are TRUE? CIRCLE THE LETTER OF ALL THAT APPLY A Beryllium copper alloys have strengths that are similar to some steels B. Brass materials are alloys of copper and bronze and provide excellent corrosion resistance C All copper alloys have excellent electrical ponductivity D. All copper alloys have very good corrosion resistance E Copper alloys can be annealed, stress relieved, and age hardened F. Even though pure copper is soft, many copper alloys provide very good wear resistance Part 9 (6 points) Regarding NICKEL, ZINC, and TITANIUM which statements are TRUE? CIRCLE THE LETTER OF ALL THAT APPLY A. One of the most useful aspects of NICKEL is its resistance to caustics B. Titanium has found extensive use in aerospace applications due to its high melting point, lower density than steel C. Zinc is used extensively as a corrosion inhibitor due to its low cost and anti-corrosion properties D. Care must be used when die casting Zinc alloys because it is easily hardenable E ALL THREE MATERIALS are readily available in standard mill shapes (bars, rods, flats) F. NONE OF THE ABOVE Part 10 (6 points) What are some important characteristics of Malleable Irons? CIRCLE THE LETTER OF ALL THAT APPLY A Malleable Irons have nearly the same modulus of elasticity of steels. YES B. They exhibit good ductility allowing as much as 70% elongation NO (20% elongation) C. They are very good for applications undergoing impact loads. YES D. Malleable Irons have been heat treated at the mill to give high surface hardness NO E. ALL of items A through D. NO F NONE OF THE ABOVE NO