Part 3 (6 points) What are some of the reasons to perform a heat treating operation on metals? CIRCLE THE LETTER OF ALL

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Part 3 6 Points What Are Some Of The Reasons To Perform A Heat Treating Operation On Metals Circle The Letter Of All 1 (78.02 KiB) Viewed 36 times

Part 3 (6 points) What are some of the reasons to perform a heat treating operation on metals? CIRCLE THE LETTER OF ALL THAT APPLY A Stress relieve the metal after an operation that induces adverse stresses B. To improve the solubility of the material's dislocations C. To make a material harder than its normal state, D. To make a material softer than its processed state E. To force the precipitation of lead crystallites F. All of the above Part 4 (6 points) The copper alloy designation system provides information about which specific aspects of commercially available copper alloys? CIRCLE THE LETTER OF ALL THAT APPLY A. Cold worked and annealed tempers. B. Product conditions, such as wrought or cast. C Product forms such as rod, bar, and sheet D Austenitic & Martensitic conditions of copper alloys E Levels of wear resistance ratings of particular copper alloys. F. NONE OF THE ABOVE. Part 5 (6 points) Which of the following can be considered as a polymer-strengthening mechanism? CIRCLE THE LETTER OF ALL THAT APPLY A Cross Linking B. Polymer alloying C Blending of suitable polymers to create a new polymer D. Polymerization E Dislocation enhancements F. NONE OF THE ABOVE Part 6 (6 points) Some of the basic concepts about CAST IRONS include which of the following? CIRCLE THE LETTER OF ALL THAT APPLY A Ductile Iron is the material that is most commonly used for casting machine bases B. Malleable Iron must be further heat treated to achieve reasonable ductility, while Ductile Iron has some ductility as cast C. All of the cast irons contain much more carbon content than steels D. Gray Iron has superior damping characteristics and good machinability but cannot handle shock loads very well E. Malleable Iron is the materal most widely used for Powder Metallurgy applications F Gray Iron has very similar properties to some of the lower grades of steel