GATE MT 2017 Paper 1 — page 16

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

Questions 46–48 of 65. Imported answers require review unless explicitly marked reviewed.

Paper practice 65 questionsPage 16 of 22

Arrange the magnetic moment of neighboring atoms in a one-dimensional lattice in Group-I to the corresponding magnetic material in Group-II

Group-I [P] Random [Q] Parallel [R] Antiparallel [S] Antiparallel and unequal

Diagram for Metallurgical Engineering question 46

Group-II [1] Antiferromagnetic [2] Ferrimagnetic [3] Paramagnetic [4] Ferromagnetic

Your answerChoose one option.

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

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

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

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

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For an intrinsic semiconductor, the room temperature electrical conductivity is 10⁻⁶ Ω⁻¹ m⁻¹. If the electron and hole mobilities are 0.75 and 0.06 m² V⁻¹ s⁻¹ respectively, the intrinsic carrier concentration (per m³) at room temperature is:

Your answerChoose one option.

5.1×10¹²

7.7×10¹²

8.3×10¹²

1.1×10¹⁴

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A steel component is subjected to fatigue loading: σ (maximum) = 200 MPa, σ (minimum) = 0. The component has an initial crack length of 1 mm. Propagation of crack is governed by

where, the crack length a is in meters, N is the number of cycles and ΔK is in MPa·m¹ᐟ². The length of the crack (in m) after one million cycles will be ________ (answer up to three decimal places)

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2017 · Paper 1

Question 46

Question 47

Question 48