Material Science Set 3

Electrical Engineering

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This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 3

Q1 | in body centred crystal structure, there is              number of corner atoms
  • 1
  • 4
  • 8
Answer: 8
Q2 | in body centred crystal structure, there is                number of center atoms
  • 1
  • 4
  • 8
Answer: 1
Q3 | in body centred crystal structure, the average number of atoms per unit cell is
  • 1
  • 2
  • 4
  • 6
Answer: 2
Q4 | in a crystal structure, the average number of atoms per unit cell is 2
  • simple cubic
  • body centred
  • face centred
  • hexagonal closed pack
Answer: body centred
Q5 | in body centred crystal structure, the relationship between lattice constant and radius of atom is given by                       
  • a=r/2
  • r=a/2
  • r=√3a/4
  • a=√3r/4
Answer: r=√3a/4
Q6 | the average packing factor for body centred crystal structure is given as
  • 0.52
  • 0.68
  • 0.74
  • 0.85
Answer: 0.68
Q7 | the coordination number for simple body structure is given as                         
  • 6
  • 8
  • 12
  • 14
Answer: 8
Q8 | in a face centred crystal structure there is                    number of corner atoms
  • 1
  • 4
  • 8
Answer: 8
Q9 | in a face centred crystal structure there is                    number of face atoms
  • 0
  • 4
  • 8
  • 6
Answer: 6
Q10 | in a face centred crystal structure, the average number of atoms per unit cell is
  • 1
  • 2
  • 4
  • 6
Answer: 4
Q11 | in a crystal structure, the average number of atoms per unit cell is 4
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Answer: face centred
Q12 | in a face centred crystal structure, the relationship between lattice constant and radius of atom is given by                         
  • r=√3a/4
  • a=√3r/4
  • a=r/2√2
  • r=a/2√2
Answer: r=a/2√2
Q13 | the average packing factor for face centred crystal structure is given as
  • 0.52
  • 0.68
  • 0.74
  • 0.85
Answer: 0.74
Q14 | the coordination number for a face centred crystal structure is given by                       
  • 6
  • 8
  • 12
  • 14
Answer: 12
Q15 | in a hexagonal close packed crystal structure, there is number of corner atoms
  • 1
  • 4
  • 8
  • 12
Answer: 12
Q16 | in a hexagonal close packed crystal structure, there is number of
  • 2
  • 4
  • 8
  • 6
Answer: 2
Q17 | in a hexagonal close packed crystal structure, there is number of center atoms
  • 1
  • 4
  • 8
  • 3
Answer: 3
Q18 | in a hexagonal close packed crystal structure, the average number of atoms per unit cell is                       
  • 1
  • 2
  • 4
  • 6
Answer: 6
Q19 | in a crystal structure, the average number of atoms per unit cell is 6
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Answer: hexagonal close packed
Q20 | the average packing factor for hexagonal close packed crystal structure is given as
  • 0.52
  • 0.68
  • 0.74
  • 0.85
Answer: 0.74
Q21 | the coordination number for a hexagonal close packed crystal structure is given as
  • 6
  • 8
  • 12
  • 14
Answer: 12
Q22 | the examples of simple cubic crystal structure are                   
  • cr, mo. fe, ta, w
  • al, cu, ag, au, ni
  • mg, cd, zn, co, be
  • none of the above
Answer: none of the above
Q23 | the examples of body centred cubic structure are                       
  • cr, mo. fe, ta, w
  • al, cu, ag, au, ni
  • mg, cd, zn, co, be
  • none of the above
Answer: cr, mo. fe, ta, w
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