Engineering Sciences
GATE XE Classification and Structure of Materials PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 40. Imported answers require independent review unless marked reviewed.
Question 48
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Which one of the following unit cell parameters represents a tetragonal crystal system?
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The Miller indices for the shaded plane shown in the unit cell below is
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Which of the following figures schematically represent(s) either the Frenkel defect or the Schottky defect in ionic solids?
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Aliovalent doping of
in
leads to the formation of defects. Which one of the following is the correct defect reaction?Your answerChoose one option.
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A screw dislocation in a FCC crystal has Burgers vector of
, where
is the lattice constant. The possible slip plane(s) is/are:Your answerSelect all correct options. You can choose more than one.
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Match the lattice planes and directions (in Column I) with the corresponding Miller indices (in Column II):
Column I: (P), (Q), (R), (S); Column II: 1.
; 2.
; 3.
; 4.
.
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Among the 14 Bravais lattices, there is no base centred cubic unit cell. Which of the following statement(s) is/are true?
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Number of atoms per unit area of the (110) plane of a body centered cubic crystal, with lattice parameter 'a', is
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Match the following materials with their corresponding bonding types.
Material | Bonding |
|---|---|
P: Cu₀.₅Al₀.₅ | 1: Ionic |
Q: ZnS | 2: Covalent |
R: Na₂O | 3: Metallic |
S: Li₄SiO₄ | 4: Mixed |
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Amino acids react to form peptides and proteins. This process is known as
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