Please answer all questions 7) The term allotropy is normally reserved for this behavior in pure elements /compounds,while the term polymorphism is used for elements /compounds.8) As the extent of undercooling decreases/ increases, the thermodynamic driving foree sothe formation of a solid phase from the liquid is decreased/ increased.Q3(Multiple Choice Answer 10 of 121) As the temperature of a metal increases, the vacancy concentrationa) decreases b) increasesc) remains the same2) Which of the following statements is NOT truea) The [100], [010] & [001] are equivalent in the cubic systemb) The [100] & [001] are equivalent in the cubic systemc) The [100], [010] & [001] are equivalent in the tetragonal systemd) The [100] & [010] are equivalent in the tetragonal system3) The greater a materials Young's modulus thethe material.a) stifferb) weakerc) more ductiled) tougher4) The pearlite microstructure is formeda) in hypereutectoid steelsc) in eutectoid steels d) all of the aboveb) in hypoeutectoid steelse) none of the above5) Within the elastic limita) Strain is produced by bond breaking and reformingb) Stress is proportional to strainc) Complete recovery of strain is not possibled) Strain is produced by bond stretchinge) b and d, are correctf) a and b, are correct6) Boron can diffuse in silicon can by either a vacancy or interstitial mechanism. Whichstatement is probably true?a) DintDyacd) none7)Most metals are,a) single crystalsDpolycrystallinec)mixtures of amorphous regions interspersed with single crystalsd) amorphous73Diffusion faster for materials with:a. closed-packed structure.c. higher melting T.b. higher density.d. lower melting T.

In crystallography, a vacancy is the absence of an atom or molecule from a position in a crystal…

Answered: 12 1) As the temperature of a metal…

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Mechanical Engineering

12 1) As the temperature of a metal increases, the vacancy concentration a) decreases b) increases c) remains the same

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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