Trending ▼   ResFinder  

GATE 2015 : Engineering Sciences [Section D]

3 pages, 22 questions, 0 questions with responses, 0 total responses,    0    0
gate
   		+Fave Message
ProfileTimelineUploadsQ & A
 Home > gate >

Formatting page ...

GATE 2015 MATERIAL SCIENCE- XE-C C : MATERIALS SCIENCE Q. 1 Q. 9 carry one mark each. Q.1 Arrange the following elements in order of increasing melting point: (P) gallium (Q) tungsten (R) aluminium (S) gold (A) P < R< Q < S (B) S < P < R < Q (C) P < R < S < Q (D) R < S < Q < P Q.2 When the atoms in a solid are separated by their equilibrium distance, A) the potential energy of the solid is lowest B) the force of attraction between the atoms is maximum C) the force of repulsion between the atoms is zero D) the potential energy of the solid is zero Q.3 To which of the following category of materials does Teflon (PTFE) belong? (A) Thermosets Q.4 (B) Thermoplastics (C) Elastomers (D) Block copolymers Which of the following statements is TRUE about the glass transition temperature (Tg)? (A) Tg appears below the melting temperature in a perfectly crystalline material (B) Upon heating through Tg, heat capacity remains constant but the thermal expansion coefficient changes (C) Upon heating through Tg, heat capacity changes but the thermal expansion coefficient remains the same (D) Upon heating through Tg, both the heat capacity and thermal expansion coefficient change Q.5 The slope of a graph of loge(conductivity) versus 1/T (where T is the temperature) for an intrinsic semiconductor with energy gap Eg, is (A) Eg/2k Q.6 (C) Eg/k (D) Eg/k (C) forging (D) tape casting Which is NOT a ceramic forming process? (A) extrusion Q.7 (B) Eg/2k (B) slip casting Which of the following is NOT a soft magnetic material? (A) Iron-silicon steel (B) Nickel zinc ferrite (C) Nickel iron alloy (D) Alnico Q.8 The eutectic reaction is [Note: S solid; L liquid] (A) S1 S2 + S3 (B) L S1 + S2 (C) L1 + S1 L2 + S2 (D) L1 + S1 S2 + S3 XE-C 1/3

Formatting page ...

Formatting page ...

 

  Print intermediate debugging step

Show debugging info


 


Tags : India, GATE Exam Question Papers, Free Online Solutions, Answers, Answer Key, Graduate Aptitude Test in Engineering, IIT, IISc, GATE Exam Syllabus, GATE Study Material, GATE Exam Pattern, gate exam papers, gate question papers 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, past gate papers, gate papers with answers, gate entrance exam engineering, gate previous years papers, gate old papers, gpat.  

© 2010 - 2024 ResPaper. Terms of ServiceContact Us Advertise with us

 

gate chat