GATE PI 2011
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GATE PI

In sand casting fluidity of the molten metal increases with
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Which of the following casting processes uses expandable pattern and expandable mold
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In a sand casting process, a sphere and a cylinder of equal volumes are separately cast from the same molten metal under
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The eigen values of the following matrix $$\left[ {\matrix{ {10} & { - 4} \cr {18} & { - 12} \cr }
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If a matrix $$A = \left[ {\matrix{ 2 & 4 \cr 1 & 3 \cr } } \right]$$ and matrix $$B = \left[ {\matri
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The line integral $$\int\limits_{{P_1}}^{{P_2}} {\left( {ydx + xdy} \right)} $$ from $${P_1}\left( {{x_1},{y_1}} \right)
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If $$A$$ $$(0,4,3),$$ $$B(0,0,0)$$ and $$C(3,0,4)$$ are there points defined in $$x, y, z$$ coordinate system, then whic
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If $$T(x, y, z)$$ $$ = {x^2} + {y^2} + 2{z^2}$$ defines the temperature at any location $$(x, y, z)$$ then the magnitud
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It is estimated that the average number of events during a year is three. What is the probability of occurrence of not m
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The solution of the differential equation $$\,\,\,{{{d^2}y} \over {d{x^2}}} + 6{{dy} \over {dx}} + 9y = 9x + 6\,\,\,\,$$
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Water is flowing through a horizontal pipe of constant diameter and the flow is laminar. If the diameter of the pipe is
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Cold water flowing at $$0.1$$ $$kg/s$$ is heated from $${20^ \circ }C$$ to $${70^ \circ }C$$ in a counter-flow type heat
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In resistance seam welding, the electrode is in the form of a
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Which of the following welding process results in the smallest heat affected zone
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The binding material used in cemented carbide cutting tools is
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Grinding ratio is defined as
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The number of defective produced by a six sigma process (in Parts per million) is
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During orthogonal machining of a mild steel specimen with a cutting tool of zero rake angle, the following data is obtai
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Match the following materials with their most appropriate application:
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During orthogonal machining of a mild steel specimen with a cutting tool of zero rake angle, the following data is obtai
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In multi-pass operation, a round bar of $$10$$ $$mm$$ diameter and $$100$$ $$mm$$ length is reduced in cross-section by
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In multi-pass operation, a round bar of $$10$$ $$mm$$ diameter and $$100$$ $$mm$$ length is reduced in cross-section by
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The thickness of a plate is reduced from $$30$$ $$mm$$ to $$10$$ $$mm$$ by successive cold rolling passes using identica
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To measure the effective diameter of an external metric thread (included angle is $$60$$ degrees) of $$3.5$$ $$mm$$ pit
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Observation of a slip gauge on a flatness interferometer produced fringe counts numbering $$10$$ and $$14$$ for two read
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