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b) Answer all of the multiple choice questions; 1. Which one of the following crystal structures has the many slip directions and therefore the metals with this structure are generally more easy to deform at room temperature: (a) ВСС, (b) FCC, (с) НСР? 2. A finishing operation generally invoves which one of the following combinations of cutting conditions? (a) high v (speed), f (feed)and d (depth of cut) (b) high v, lowf and d (c) low v, highfand d (d) low v, f, and d. 3. Of the following cutting conditions, which one has the greatest effect on tool wear: (a) cutting speed, (b) depth of cut, or (c) feed. 4. Which one of the following cutting tool materials has the highest toughness; (a) ceramics. (b) HSS (c) synthetic diamond.

b) Answer all of the multiple choice questions; 1. Which one of the following crystal structures has the many slip directions and therefore the metals with this structure are generally more easy to deform at room temperature: (a) ВСС, (b) FCC, (с) НСР? 2. A finishing operation generally invoves which one of the following combinations of cutting conditions? (a) high v (speed), f (feed)and d (depth of cut) (b) high v, lowf and d (c) low v, highfand d (d) low v, f, and d. 3. Of the following cutting conditions, which one has the greatest effect on tool wear: (a) cutting speed, (b) depth of cut, or (c) feed. 4. Which one of the following cutting tool materials has the highest toughness; (a) ceramics. (b) HSS (c) synthetic diamond.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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b) Answer all of the multiple choice questions; 1. Which one of the following crystal structures has the many slip directions and therefore the metals with this structure are generally more easy to deform at room temperature: (a) BCC, (b) FCC, (c) HCP? 2. A finishing operation generally invoves which one of the following combinations of cutting conditions? (a) high v (speed). S (feed)and d (depth of cut) (b) high v, lowf and d (c) low v, highfand d (d) low v, f, and d. 3. Of the following cutting conditions, which one has the greatest effect on tool wear: (a) cutting speed, (b) depth of cut, or (c) feed. 4. Which one of the following cutting tool materials has the highest toughness; (a) ceramics. (b) HSS (c) synthetic diamond. 5. Which of the following manufacturing processes are classified as material removal processes (two correct answers): (a) casting, (b) rolling, (c) forging, (d) grinding, (e) sawing. 6. Which one of the following cutting tool materials has the highest hardness; (a) HCS (b) HSS (c) Cast cobalt alloys (d) Ceramics. 7. Which one of the following machining processes will likely result in the worst surface finish? (a) sawing (b) turning (c) milling (d) grinding. 8. Cast cobalt alloys typically contain which of the following main ingredients (three best answers): (a) aluminum, (b) cobalt, (c) chromium, (d) iron, (e) nickel, (f) steel, (g) tungsten? 9. The maximum possible draft in a rolling opeartion depends on which of the following parameters(two correct answer); (a) coefficient of friction between roll and work (b) roll diameter (c) roll velocity (d) stock thickness. 10. Which one of the following types of stress-strain relationship best describes the behavior of most metals at high temerature (hot forming):(a) elastic and perfect plastic (b) elastic and strain hardening(c) perfectly elastic. 11. Which one of the following types of stress-strain relationship best describes the behavior of most metals at room temerature;(a) clastic and perfect plastic (b) elastic and strain hardening(c)perfectly elastic. 12. Hot working of metals refers to which of the following temperature regions relative to the meling point if the given metal on an absolute temperature scale? (a) 0.2Tm (b) 0.5Tm (c) 0.8Tm (d) 0.1Tm. 13. Which of the basic bulk deformation processes use tension to effect shape change; (a) extrusion (b) rolling (c) forging (d) drawing 14. Which of the following are advantages of cold working relative to hot working? (a) better surface finish (b) isotropic mechanical properties (c) fracture of workpart less likely (d) lower deformation forces required. 15. Deformation processes include which of the following (two correct answers): (a) casting (b) drilling (c) extrusion (d) forging (e) milling? 16. Which one of the following is a machine used to perform extrusion: (a) forge hammer (b) milling machine (c) rolling mill (d) press? 17. Which one of the following is the correct definition of ultimate tensile strength, as derived from the results of a tensile test on a metal specimen: (a) the stress encountered when the stress-strain curve transforms from elastic to plastic behavior (b) the maximum load divided by the final area of the specimen (c) the maximum load divided by the original area of the specimen (d) the stress observed when the specimen finally fails? 18. A flange weld is most closely associated with which one of the following joint types: (a) butt, (b) cormer, (c) edge, (d) lap, or (e) tee? 19. Weld failures always occur in the fusion zone of the weld joint, since this is the part of the joint that has been melted: (a) true, or (b) false? 20. If stress values were measured during a tensile test, which of the following would have the higher value:(a) engineering stress (b) true stress?
Transcribed Image Text:b) Answer all of the multiple choice questions; 1. Which one of the following crystal structures has the many slip directions and therefore the metals with this structure are generally more easy to deform at room temperature: (a) BCC, (b) FCC, (c) HCP? 2. A finishing operation generally invoves which one of the following combinations of cutting conditions? (a) high v (speed). S (feed)and d (depth of cut) (b) high v, lowf and d (c) low v, highfand d (d) low v, f, and d. 3. Of the following cutting conditions, which one has the greatest effect on tool wear: (a) cutting speed, (b) depth of cut, or (c) feed. 4. Which one of the following cutting tool materials has the highest toughness; (a) ceramics. (b) HSS (c) synthetic diamond. 5. Which of the following manufacturing processes are classified as material removal processes (two correct answers): (a) casting, (b) rolling, (c) forging, (d) grinding, (e) sawing. 6. Which one of the following cutting tool materials has the highest hardness; (a) HCS (b) HSS (c) Cast cobalt alloys (d) Ceramics. 7. Which one of the following machining processes will likely result in the worst surface finish? (a) sawing (b) turning (c) milling (d) grinding. 8. Cast cobalt alloys typically contain which of the following main ingredients (three best answers): (a) aluminum, (b) cobalt, (c) chromium, (d) iron, (e) nickel, (f) steel, (g) tungsten? 9. The maximum possible draft in a rolling opeartion depends on which of the following parameters(two correct answer); (a) coefficient of friction between roll and work (b) roll diameter (c) roll velocity (d) stock thickness. 10. Which one of the following types of stress-strain relationship best describes the behavior of most metals at high temerature (hot forming):(a) elastic and perfect plastic (b) elastic and strain hardening(c) perfectly elastic. 11. Which one of the following types of stress-strain relationship best describes the behavior of most metals at room temerature;(a) clastic and perfect plastic (b) elastic and strain hardening(c)perfectly elastic. 12. Hot working of metals refers to which of the following temperature regions relative to the meling point if the given metal on an absolute temperature scale? (a) 0.2Tm (b) 0.5Tm (c) 0.8Tm (d) 0.1Tm. 13. Which of the basic bulk deformation processes use tension to effect shape change; (a) extrusion (b) rolling (c) forging (d) drawing 14. Which of the following are advantages of cold working relative to hot working? (a) better surface finish (b) isotropic mechanical properties (c) fracture of workpart less likely (d) lower deformation forces required. 15. Deformation processes include which of the following (two correct answers): (a) casting (b) drilling (c) extrusion (d) forging (e) milling? 16. Which one of the following is a machine used to perform extrusion: (a) forge hammer (b) milling machine (c) rolling mill (d) press? 17. Which one of the following is the correct definition of ultimate tensile strength, as derived from the results of a tensile test on a metal specimen: (a) the stress encountered when the stress-strain curve transforms from elastic to plastic behavior (b) the maximum load divided by the final area of the specimen (c) the maximum load divided by the original area of the specimen (d) the stress observed when the specimen finally fails? 18. A flange weld is most closely associated with which one of the following joint types: (a) butt, (b) cormer, (c) edge, (d) lap, or (e) tee? 19. Weld failures always occur in the fusion zone of the weld joint, since this is the part of the joint that has been melted: (a) true, or (b) false? 20. If stress values were measured during a tensile test, which of the following would have the higher value:(a) engineering stress (b) true stress?
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