Metallurgical Engineering
2020 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE MT 2020 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 24
Open questionMTNAT1 markNeeds review
In cold-rolling, for the sheet to be drawn into rolls, the angle of contact (or angle of bite) should be less than or equal to _____ degree (round off to one decimal place).
Given, the coefficient of friction between sheet and roll is 0.1
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Open questionMTNAT1 markNeeds review
The number of atoms per unit area in (100) plane of Pb is _____ nm
(round off to the nearest integer).Given, crystal structure and atomic radius of Pb are FCC and 0.175 nm respectively.
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Open questionMTMCQ2 marksNeeds review
In the edge dislocation configuration given in the figure, dislocations X and Y are fixed and separated by a distance
on the same slip plane. Dislocation Z is free to glide on a parallel slip plane. The two slip planes are separated by a distance
. Which one of the following statements is TRUE regarding the stability of dislocation Z at positions 1, 2 and 3?Assume all dislocations have identical Burgers vector.
Your answerChoose one option.
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