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XE-C GATE Exam Previous Papers 2017 | XE-C GATE Model Papers 2017
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GATE Exam Previous Papers | XE-C GATE Model Papers 2017
GATE Materials Science Paper 2017 Details
- Total number of Questions = 31
Few Question are listed below for preview: GATE Materials Science Previous Paper 2017
1. Which of the follwing is a Frenkel defect?
(A) One C vacancy and one Na vacancy in NaC1
(B) One Zn vacancy and one Zn interstitial in ZnO
(C) K at the Na site in NaC1
(D) None of the above
2. Which processing technique is best suited for manufacturing decorative PVC floor tiles?
(A) Blow molding
(B) Filament winding
(C) Rotational olding
(D) Calendering
3. The contrast obtained in scanning electron microscope using back scattered electrons depends on
(A) Atomic number of the specimen material
(B) Accelerating voltage of the microscope
(C) Working distance in the microscope
(D) Type of the electron emitter in the micproscope
4. Ceramic materials fail at stresses much lower than their theoretical strenght due to
(A) Presence of dislocations
(B) High elastic modulus
(C) Presence of voids
(D) Anisotropy in crystal structure
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