GATE MT 2022 Paper 1 — page 14

Questions 40–42 of 65. Imported answers require review unless explicitly marked reviewed.

Find the correct match between dislocation reactions (Column A) to the descriptions (Column B)

Column A (P)

(Q)

(R)

Column B (1) Leading partials merging to form a Lomer-Cottrell lock in an FCC metal (2) Energetically unfavorable dislocation reaction in an FCC metal (3) Typical dislocation reaction in a BCC metal

Your answerChoose one option.

P – 3, Q – 2, R – 1

P – 3, Q – 1, R – 2

P – 2, Q – 3, R – 1

P – 2, Q – 1, R – 3

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Match the phenomena (Column I) with the descriptions (Column II)

Column I (P) Cottrell atmosphere (Q) Suzuki interaction (R) Bauschinger effect (S) Nabarro-Herring creep

Column II (1) Decrease in yield stress when loading direction is reversed (2) Stress assisted diffusion of vacancies resulting in plastic deformation in a polycrystalline material (3) Lüders bands (4) Segregation of solutes to the stacking fault

Your answerChoose one option.

P – 1, Q – 2, R – 3, S – 4

P – 1, Q – 2, R – 4, S – 3

P – 3, Q – 4, R – 1, S – 2

P – 3, Q – 1, R – 4, S – 2

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For a

matrix, the value of the determinant is −48 and the trace is 8. If one of the eigenvalues is 4, the other two are ________

Your answerChoose one option.

2, −3

1, −3

6, −2

−4, 0

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2022 · Paper 1

Question 40

Question 41

Question 42