GATE MT 2017 Paper 1 — page 15

Complete GATE MT 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 15 of 22

For homogeneous nucleation of solid in a liquid of a pure metal, the critical edge length (in nm) of a cube shaped nucleus is __________ (answer up to two decimal places)

(Given: surface energy

J m

; change in volume free energy

J m

)

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Assuming the solid phases to be pure, the slope of line BC in the predominance area diagram schematically shown below is ________ (answer up to two decimal places)

Diagram for Metallurgical Engineering question 44

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For each of the crystallographic system listed in Group-I, match the corresponding minimum symmetry in Group-II

Group-I [P] Tetragonal [Q] Cubic [R] Monoclinic [S] Rhombohedral

Group-II [1] 1 two-fold rotation [2] 1 three-fold rotation [3] 4 three-fold rotation [4] 1 four-fold rotation

Your answerChoose one option.

P-3; Q-4; R-2; S-3

P-4; Q-3; R-2; S-1

P-1; Q-2; R-4; S-3

P-4; Q-3; R-1; S-2

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2017 · Paper 1

Question 43

Question 44

Question 45