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