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Split wedge gate valves, as shown in Figure 7, are of the ball and socket design. These are self-adjusting and self- aligning to both seating surfaces. The disk is free to adjust itself to the seating surface if one-half of the disk is slightly out of alignment because of foreign matter lodged between the disk half and the seat ring. This type of wedge is suitable for handling noncondensing gases and liquids at normal temperatures, particularly corrosive liquids. Freedom of movement of the disk in the carrier prevents binding even though the valve may have been closed when hot and later contracted due to cooling. This type of valve should be. | GATE 2013 Graduate Aptitude Test in Engineering Information Brochure Organizing Institute Indian Institute of Technology Bombay 1 1 Table of Contents 1 Introduction.4 1.1 Financial Assistance.4 1.2 Administration.4 2 What s New in GATE 2013 .6 2.1 Other Important points about GATE 2013.6 2.2 Important Dates related to GATE 2013.7 3 Pre Exam Related Information.8 3.1 Eligibility for GATE.9 3.2 GATE Papers.11 3.3 Examination Schedule.12 3.4 State-wise Exam Cities.13 3.5 How to Apply.16 3.5.1 GATE Online Applicant Interface.16 3.5.2 Filling in Application Online.17 3.5.3 Application Fee Payment Options.19 3.5.4 Mailing Documents to GATE Office.20 3.5.5 Photograph and Signature Requirements.22 3.6 Admit Card.26 4 Examination Related Information.27 4.1 Structure of GATE 2013.27 4.1.1 General Aptitude Questions.27 4.1.2 XE Paper.28 4.1.3 XL Paper.28 4.2 Duration and Exam Type. 28 4.3 Pattern of Question Papers and Marking Scheme.29 4.3.1 Pattern of Question Papers.29 4.4 Marking Scheme.31 4.4.1 General Aptitude GA Questions.31 4.4.2 Question papers other than GG XE and XL.31 4.4.3 GG Geology and Geophysics Paper.32 4.4.4 XE Paper Engineering Sciences .32 4.4.5 XL Paper Life Sciences .32 4.5 GATE Syllabi.33 4.5.1 General Aptitude GA Common to All Papers Engineering.33 4.5.2 Aerospace Engineering AE .35 4.5.3 Agricultural Engineering AG .37 4.5.4 Architecture and Planning AR .39 4.5.5 Biotechnology BT .41 4.5.6 Civil Engineering CE .43 4.5.7 Chemical Engineering CH .45 4.5.8 Computer Science and Information Technology CS .47 4.5.9 Chemistry CY .49 4.5.10 Electronics and Communication Engineering EC .51 4.5.11 Electrical Engineering EE .53 4.5.12 Geology and Geophysics GG .55 4.5.13 Instrumentation Engineering IN .58 4.5.14 Mathematics MA .60 4.5.15 Mechanical Engineering ME .62 4.5.16 Mining Engineering MN . 64 4.5.17 Metallurgical Engineering MT .66 4.5.18 Physics PH .68 4.5.19 Production and Industrial Engineering PI . 69 4.5.20 Textile Engineering and Fibre Science TF .
