List of top Metallurgy Questions on Crystallography asked in AP PGECET

The atomic packing factor (APF) of FCC structure is approximately

The coordination number of atoms in an FCC crystal structure is

The atomic packing factor (APF) for BCC structure is approximately

The Burgers vector in a perfect dislocation represents

The d-spacing of an FCC lattice in [110] plane if lattice parameter (a)=3.60 A is:

The BCC lattice has systematic extinction rules where reflections only occur if the sum of the indices is

The effective number of atoms in a body-centered cubic (BCC) unit cell is

The ratio of interplanar spacing for (100):(110):(111) planes in a cubic lattice is