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This set of Material Science Multiple Choice Questions & Answers (MCQs) focuses on Material Science Set 2

Q1 | indexong or designation in a unit cell can be done for a particular                       
  • point location
  • direction
  • plane
  • all of the above
Q2 | the basis of determining index values for a simple cubic structure is unit cell
  • 2dimensional
  • 3dimensional
  • both a and b
  • none of the above
Q3 | circular parenthesis symbolically represents                   
  • crystallogra phic point locations
  • crystaloogra phic directions
  • crystallogra phic planes
  • none of the above
Q4 | square brackets symbolocally represents crystallographic -
  • crystallogra phic point locations
  • crystaloogra phic directions
  • crystallogra phic planes
  • none of the above
Q5 | out of the following is used for reprenstation of Miller Indices for a single plane
  • {}
  • []
  • ()
  • none of the above
Q6 | out of the following is used for reprenstation of Miller Indices for a single direction
  • {}
  • []
  • ()
  • none of the above
Q7 | in any cubic crustal structure the corner atoms shared by adjacent unit cells
  • 1
  • 2
  • 4
  • 8
Q8 | in face centered cubic crystal structure the face atom is shared by adjacent unit cells
  • 1
  • 2
  • 4
  • 8
Q9 | in cubic crystal structure, the                        located atom is shared by 8 adjacent unit cells
  • center
  • face
  • corner
  • none of the above
Q10 | A higher value of average number of atoms per unit cell indicates                 
  • bigger size of materials
  • higher density of materials
  • lower density of materials
  • none of the above
Q11 | co-ordination number is also referred to as
  • ligancy number
  • average number of atoms per unit cell
  • atomic packing factor
  • none of the above
Q12 |                      is defined as number of atoms adjacent to and touching a central atoms under consideration
  • co- ordination number
  • average number of atoms per unit cell
  • atomic packing factor
  • none of the above
Q13 | a higher value of coordination number indicates                       
  • bigger size of materials
  • higher density of materials
  • lower density of materials
  • none of the above
Q14 | is defined as fraction of volume occupied by atoms in unit cell
  • ligancy number
  • average number of atoms per unit cell
  • atomic packing factor
  • none of the above
Q15 | APN is defined as                           
  • ratio of volume occupied by atoms in unit cell to volume of unit cell
  • ratio of volume of unit cell to volume occupied by atoms in unit cell
  • ratio of volume of unit cell to volume of crystal structure
  • none of the above
Q16 | a higher value of APN number indicates
  • bigger size of materials
  • higher density of materials
  • higher value of averagge niumber of atoms per unit cell
  • both b and c
Q17 | in simple cubic crystal structure there arenumber of corner atoms
  • 1
  • 4
  • 8
Q18 | in simple cubic crystal structure there arenumber of face atom
  • 1
  • 4
  • 8
  • none of the above
Q19 | in simple cubic crystal structure, the average number of atoms per unit cell is
  • 1
  • 2
  • 4
  • 6
Q20 | in a cubic crystal structure, the average number of atoms per unit cell is 1
  • simple cubic
  • body centred
  • face centred
  • hexagonal close packed
Q21 | in simple cubic crystal structure, the relationsheep between lattice constant and radius of atom is given by                           
  • a=r/2
  • r=a/2
  • r=√3a/4
  • r=√3r/4
Q22 | the average packing factor for simple cubic crystal is given as                           
  • 0.52
  • 0.68
  • 0.74
  • 0.85
Q23 | the coordination number for simple cubic structure is given as                         
  • 6
  • 8
  • 12
  • 14