Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech II MACHINE DRAWING Previous Question Paper (December - 2017 - R13)
Answer any THREE questions from Part-A. Part-B is Compulsory.
Part A
Sketch the following conventional materials.
Lead
Answer
Lead is represented by a series of parallel, uniformly spaced diagonal lines drawn at an angle of 45 degrees, similar to general hatching but typically spaced slightly further apart.
Wood
Answer
Wood is represented by irregular, wavy parallel lines that mimic the grain pattern of timber, often including small loops or knots to indicate the natural texture.
Glass
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Steel
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Asbestos
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Draw sectional front view and side view of the cotter and Gib joint for connecting two square rods of side 50 mm. Take proportionate dimensions.
Answer
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Draw the sectional front view and side view of a footstep bearing, for supporting a shaft of diameter 60 mm. Give all important proportionate dimensions.
Answer
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Draw the following thread profiles for a nominal diameter of 30 mm and pitch 3 mm and give their applications:
ACME thread
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Worm thread
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Square thread
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Buttress thread
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Part B
Assemble all the parts of lathe tailstock shown in figure and draw sectional front view and right hand side view.
Answer
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