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Get all set of GATE MT  (Metallurgy) question papers with solution. Download the pdf of GATE MT 2020 previous year question papers with solution.

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GATE MT 2020 Q45. Figure shows schematic of a venturi meter. The cross sectional area is 100 mm^2 at A and is 50 mm^2 at B. If air is flowing through the venturi meter at a flow rate of 10^-3 m^3. S^-1, the height H in the air over-water manometer is _____________ mm (round off to the nearest integer). A. Incompressible flow with no friction losses.B. Density of air is 1 kg m^-3. C. Density water is 1000 kg m^-3. D. Acceleration due to gravity is 9.8 m s^-2.
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65%Both[a] and [r] are true but [r] is not the correct reason for [a]. ( 13 voters )
15% [a] is true but [r] is false. ( 3 voters )
0%Both [a] and [r] are false
20%Both [a] and [r] are true and [r] is the correct reason for [a]. ( 4 voters )
Based On 20 Votes

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52.63%10^6 ( 10 voters )
21.05%10^7 ( 4 voters )
5.26%10^-5 ( 1 voter )
21.05%10^-6 ( 4 voters )
Based On 19 Votes

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GATE MT 2020 Q27. A galvanic cell is formed by connecting Zn(E0)Zn2+/zn =- 0.76V and Fe E0 Fe2+/Fe =- 0.44 V wires immersed in their respective ion solutions. The cell discharges spontaneously with a voltage of 0.5 V. The ratio of the concentration of [Fe2+] to [Zn2+] ions is in the order of: Given. R = 8.3 14 J. mol-1. K-1, F = 96500 C. mol, T = 298 K
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12.5%Position 1: stable equilibrium; Position 2: unstable; Position 3: stable ( 3 voters )
75%Position 1: unstable equilibrium; Position 2: unstable; Position 3: unstable ( 18 voters )
8.33%Position 1: unstable equilibrium; Position 2: stable; Position 3: unstable ( 2 voters )
4.17%Position 1: stable equilibrium; Position 2: unstable; Position 3: unstable ( 1 voter )
Based On 24 Votes

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GATE MT 2020 Q26. In the edge dislocation configuration given in the figure, dislocations X and Y are fixed and separated by a distance 2h 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 h. 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.
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28%Both [a] and [r] true [r] is not the correct reason for [a] ( 7 voters )
24%Both [a] and [r] are true and [r] is the correct reason for [a] ( 6 voters )
36%[a] is true but [r] is false ( 9 voters )
12%Both [a] and [r] are false ( 3 voters )
Based On 25 Votes

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4%1 hour ( 1 voter )
4%2 hours ( 1 voter )
84%4 hours ( 21 voters )
8%16 hours ( 2 voters )
Based On 25 Votes

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GATE MT 2020 Q23. Two solid spheres X and Y of identical diameter are made of different materials having thermal diffusivities 100 *10-6 m2s-1 and 125 *10 m2s-1 respectively. Both spheres are heated in a furnace maintained at 1000 K. If the centre of the sphere X reaches 800 K in 1 hour. time required for the centre of sphere Y to reach 800) K is