ENGIN 45 Midterm: e45-fa2000-mt1-Gronsky-exam

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8 Jan 2019
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Question 1 choose the best answer. (2 points for each correct answer) a the directional atomic bonds include. 3 metallic bonds. b metallic bonding is generally not responsible for. 3 ductility. c the van der walls bond is a. 3 charge-transfer fluctuation. d the near-neighbor distances between anions and cations in a ceramic. 3 are established by the coordination number. e crystal structure is conventionally described using. 1 only one unit cell of the bravais lattices. 3 fcc, bcc, or hcp. f during elastic deformation, a metal experiences. 3 bond stretching. g plastic deformation in metallic alloys is the result of. 3 the uniaxial tensile test. h hardness is a measure of. 2 resistance to deformation in the elastic limit. 3 elasticity. j materials with the greatest toughness. 3 have a combination of strength and ductility. k the percent elongation of a material at failure defines its. 3 ductility. l structural engineering steels are sometimes found to be brittle.