R5210306 Machine Drawing

R5

Code No: R5210306

II B.Tech I Semester(R05) Supplementary Examinations, December 2009

MACHINE DRAWING (MECHANICAL ENGINEERING)

Time: 4 hours

Max Marks: 80 ????? PART - A (Answer any TWO questions, 2x10 Marks)

1. Draw the profile with proportions of the 150 metric screw thread design of external and internal threads. With pitch as 30 mm. 2. Show different types of key heads at least four. 3. Draw High button head, button head and cone head type of rivets with a dia of 18 mm. PART - B (Compulsory question, 1x60 Marks) 4. Draw the sectional front view and left side view of the assembled shaft bearing for a vertical steam engine from the given part list and figure(next page). Part List Part No. Name Material Quantity 1. Frame C.I. 1 2. Bottom bearing brass Bronze 1 Top bearing brass Bronze 1 3. 4. Cap C.I 1 5. Stud bolt M.S. 2 6. Nut M.S. 2 7. Nut M.S. 2

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R5

Code No: R5210306

Figure 1: Assembled Shaft Bearing

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