According to the proposed date sheet available on the PTU website, the regular exams of B.Tech.Mechanical 7th/8th semester is scheduled as:

12-May-11 E 7&8 Industrial Safety & Environment ME-402
14-May-11 E 7&8 CAD/CAM ME-404
17-May-11 E 7&8 Operations Research ME-406
19-May-11 E 7&8 Mechanical Vibrations ME-408
21-May-11 E 7&8 Non-Destructive Testing DE/ME-2.4 D.E.-II
21-May-11 E 7&8 Energy Conservation and Management DE/ME-1.4 D.E.-II
21-May-11 E 7&8 Fulid Mechanics-II DE/ME-1.5  D.E.-II
21-May-11 E 7&8 I.C Engines DE/ME-1.1  D.E.-II
21-May-11 E 7&8 Power Plant Engg DE/ME-1.8  D.E.-II
21-May-11 E 7&8 Non Conventional Energy resources DE/ME-1.3 D.E.-II
21-May-11 E 7&8 Management Information System DE/ME-2.8 D.E.-II
21-May-11 E 7&8 Non-Traditional Machining DE/PE-2.0 D.E.-II
21-May-11 E 7&8 Industrial Engg DE/PE-2.1 D.E.-II
21-May-11 E 7&8 Total Quality Management DE/ME-2.5 D.E.-II
21-May-11 E 7&8 Entrepreneurship DE/ME-2.9 D.E.-II
24-May-11 E 7&8 Human Recourse Management HU-251 Open Elective
25-May-11 E 7&8 Industrial Measurements EI-304/403 Open Elective
24-May-11 E 7&8 Material Management DE/ME-2.7 D.E.-II
21-May-11 E 7&8 Operations Management DE/ME-2.3 D.E.-II

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Disclaimer: We are just providing the information and are not responsible for any error. Kindly check the PTU website regularly for any revision in date sheet.