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This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 4

Q1 | the examples of face centred cubic structure are                       
  • cr, mo. fe, ta, w
  • al, cu, ag, au, ni
  • mg, cd, zn, co, be
  • none of the above
Q2 | the examples of hexagonal close packed crystal structure are                       
  • cr, mo. fe, ta, w
  • al, cu, ag, au, ni
  • mg, cd, zn, co, be
  • none of the above
Q3 | Chromium has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q4 | Aluminum has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q5 | Magnesium has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q6 | Zinc has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q7 | Copper has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q8 | Molybdenum has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q9 | α - Fe has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q10 | Tungsten has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q11 | Silver has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q12 | Lead has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q13 | Cadmium has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q14 | Cobalt has crystal structure
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q15 | the correct order of packing factor for BCC, FCC, HCP is                       
  • 0.52,0.68,0.74
  • 0.68,0.74,0.74
  • 0.74, 0.68,0.52
  • 0.52,0.68,0.74
Q16 | the correct order of packing factor for SC, BCC, FCC is                       
  • 0.74, 0.52,0.68
  • 0.68, 0.74,0.74
  • 0.74, 0.68,0.52
  • 0.52, 0.68,0.74
Q17 | the correct order of packing factor for FCC, HCP, BCC is                       
  • 0.52, 0.68,0.74
  • 0.74, 0.74,0.68
  • 0.74, 0.68,0.52
  • 0.52, 0.68,0.74
Q18 | which of the following is not true for FCC structure
  • it has atomic packing factor of 0.52
  • it has no central atom
  • iat has face atom shared by consecutive two faces
  • none of the above
Q19 | which of the following is true for FCC structure
  • it has atomic packing factor of 0.74
  • it has no central atom
  • iat has face atom shared by consecutive two faces
  • all of the above
Q20 | which of the following is true for SC structure
  • it has atomic packing factor of
  • it has no central atom
  • iat has face atom shared by consecutive
  • none of the above
Q21 | which of the following is not true for SC structure
  • it has atomic packing factor of 0.58
  • it has no central atom
  • iat has face atom shared by consecutive two faces
  • none of the above
Q22 | which of the following is true for BCC structure
  • it has atomic packing factor of 0.52
  • it has no central atom
  • iat has face atom shared by consecutive two faces
  • none of the above
Q23 | which of the following is not true for BCC structure                   
  • it has atomic packing factor of 0.58
  • it has no central atom
  • iat has face atom shared by consecutive two faces
  • none of the above
Q24 | a crystalline material has atoms in                ordered location which is                   
  • random, non repetitive
  • perfect, repetitive
  • perfect, non repetitive
  • none of the above
Q25 | the mechanical property of material depends on                 
  • size
  • weight
  • crystal structure
  • none of the above