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GATE Questions of Materials Science 2014

Gate Questions for Materials Science likely to be asked for Gate 2014 is given here. Sample Questions given here will be helpful for all writing XE paper in Gate 2014. Model Question Papers with Answers for Materials Science have been prepared affter evaluating previous years questions in Gate.

MATERIALS SCIENCE  (XE) - GATE 2014 - SAMPLE QUESTIONS

The Pilling-Bedworth ratio is defined as the ratio of
(A) Volume of oxide to volume of metal
(B) Weight of oxide to weight of metal
(C) Density of oxide to density of metal
(D) Surface area of oxide to surface area of metal

Which material has the lowest specific heat capacity at room temperature?
(A) Water (B) Mercury (C) Copper (D) Silver

Of the following materials, which is the most suitable for an LED emitting at around 380 nm?
(A) Direct bandgap material with a small bandgap
(B) Indirect bandgap material with a large bandgap
(C) Direct bandgap material with a large bandgap
(D) Indirect bandgap material with a small bandgap

Which of the following techniques is NOT used to grow single crystals of semiconductors?
(A) Calendering (B) Czochralski (C) Float zone (D) Bridgman


Which one of the following metals is commonly alloyed with iron to improve its corrosion 
resistance?
(A) Co (B) Cr (C) Ti (D) Nb

Vulcanization is related to 
(A) strengthening of rubber (B) extrusion (C )injection moulding (D) addition polymerisation

The number of slip systems in a metal with FCC crystal structureis
(A) 4 (B) 6 (C) 8 (D) 12

At a constant atmospheric pressure, the number of phases, P which coexist in a chosen system at 
equilibrium, is related to the number of components, C in the system and the degree of freedom, F
by
(A) P+F=C-2 (B) P+F=C+2 (C) P+F=C+1 (D) P+F=C-1

Related  Gate 2014
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