GATE PI 2009
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## GATE PI

Hot chamber die casting is NOT suited for
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A solid cylinder of diameter $$D$$ and height equal to $$D,$$ and a solid cube of side $$L$$ are being sand cast by usin
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The value of the determinant $$\left| {\matrix{ 1 &amp; 3 &amp; 2 \cr 4 &amp; 1 &amp; 1 \cr 2 &amp; 1 &amp; View Question The value of$${x_3}$$obtained by solving the following system of linear equations is$$${x_1} + 2{x_2} - 2{x_3} = 4$$View Question The total derivative of the function$$'xy'$$is View Question The line integral of the vector function$$\overrightarrow F = 2x\widehat i + {x^2}\widehat j\,\,$$along the$$x$$- a View Question The solution of the differential equation$${{{d^2}y} \over {d{x^2}}} = 0$$with boundary conditions (i)$${{dy} \over View Question The homogeneous part of the differential equation $$\,{{{d^2}y} \over {d{x^2}}} + p{{dy} \over {dx}} + qy = r\,\,$$ ( $$View Question During the numerical solution of a first order differential equation using the Euler (also known as Euler Cauchy) method View Question Consider steady flow of water in a situation where two pipe lines (pipe$$1$$and pipe$$2$$) combine into a single pipe View Question The pressure drop for laminar flow of a liquid in a smooth pipe at normal temperature and pressure is View Question Heat is being transferred convectively from a cylindrical nuclear reactor fuel rod of$$50mm$$diameter to water at$${7 View Question Autogeneous gas tungsten arc welding of a steel plate is carried out with welding current of $$500A,$$ voltage of $$20V, View Question Resistance spot welding of two steel sheets is carried out in lap joint configuration by using a welding current of$$3$
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Resistance spot welding of two steel sheets is carried out in lap joint configuration by using a welding current of $$3 View Question Diamond cutting tools are not recommended for machining of ferrous metals due to View Question In an orthogonal machining operation , the tool life obtained is$$10min$$at a cutting speed of$$10m/min,$$while at  View Question An orthogonal operation is carried out at$$20m/min$$cutting speed, using a cutting tool of rake angle$$15deg$$. The c View Question An orthogonal operation is carried out at$$20m/min$$cutting speed, using a cutting tool of rake angle$$15deg$$. The c View Question The total angular movement (in degrees) of a lead screw with a pitch of$$5.0mm$$to drive the work table by a distance View Question A titanium sheet of$$5.0mm$$thickness is cut by wire cut$$EDM$$process using a wire of$$1.0mm$$diameter. A uniform View Question Anisotropy in rolled components is caused by View Question Using direct extrusion process, a round billet of$$100mm$$length and$$50mm$$diameter is extruded. Considering a View Question A disc of$$200mm$$diameter is blanked from a strip of an aluminium alloy of thickness$$3.2mm. The materia
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An autocollimator is used to
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Match the following
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