GATE PI 1994
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GATE PI

Bentonite is commonly used bonding material for dry sand cores
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According to Chvorinove's rule, the solidification time of a casting is proportional to [Volume/Surface area]n where $$n
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A cylinder of $$150mm$$ diameter & $$200mm$$ height is to be cast with out any riser. The cylinder is moulded entire
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If for a matrix, rank equals both the number of rows and number of columns, then the matrix is called
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The value of the following determinant $$\left[ {\matrix{ 1 & 4 & 9 \cr 4 & 9 & {16} \cr 9
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The matrix $$\left[ {\matrix{ 1 & { - 4} \cr 1 & { - 5} \cr } } \right]$$ is an inverse of the matri
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For the following matrix $$\left[ {\matrix{ 1 & { - 1} \cr 2 & 3 \cr } } \right]$$ the number of pos
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Given matrix $$L = \left[ {\matrix{ 2 & 1 \cr 3 & 2 \cr 4 & 5 \cr } } \right]\,\,$$ and $$M
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Solve for $$y$$ if $${{{d^2}y} \over {d{t^2}}} + 2{{dy} \over {dt}} + y = 0$$ with $$y(0)=1$$ and $${y^1}\left( 0 \right
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The composition of an oxy-acetylene flame for cutting of steel contain more oxygen.
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Machinability of steels is improved by the addition of
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In metal cutting $$BUE$$ formation results in
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Only negative rake angles are used with the following tool material
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The heat generated in metal cutting is dissipated in different proportions into environment, tool, chip and work-piece.
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Parting-off operation is carried out on a cylindrical work-piece of $$100mm$$ diameter. The groove width is $$2$$ $$mm$$
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Parting-off operation is carried out on a cylindrical work-piece of $$100mm$$ diameter. The groove width is $$2$$ $$mm$$
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A part can be machined in $$30$$ minutes on an engine lathe where as it can be machined in $$6$$ minutes on a turret lat
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In an orthogonal cutting operation, the cutting velocity is $$30$$ $$m/min$$ and the chip velocity $$15$$ $$m/min.$$ If
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In an orthogonal cutting operation, the cutting velocity is $$30$$ $$m/min$$ and the chip velocity $$15$$ $$m/min.$$ If
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In an orthogonal cutting operation, The depth of cut $$=2$$ $$mm,$$ Width of cut $$=15$$ $$mm,$$ Cutting speed $$=0.5$
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In an orthogonal cutting operation, The depth of cut $$=2$$ $$mm,$$ Width of cut $$=15$$ $$mm,$$ Cutting speed $$=0.5$
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In an orthogonal cutting operation, The depth of cut $$=2$$ $$mm,$$ Width of cut $$=15$$ $$mm,$$ Cutting speed $$=0.5$
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$$FMS$$ is well suited to mass scale manufacturing.
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In $$DNC$$ each machine tool is controlled by a dedicated computer.
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$$FAPT$$ is a part programming language.
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Match the following
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In order to reduce roll pressure in strip rolling, back tension can be applied to strip.
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Forces in hot extrusion is a function of the strain hardening component of the billet material.
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Which one of the following manufacturing process requires the provision of 'gutters'
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A moving mandrel is used in
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An annealed copper wire of $$25 mm$$ diameter is drawn into a wire of $$5$$ $$mm$$ dia. The average yield stress in this
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In a bending operation, If the modulus of elasticity $$E$$ is increased keeping all other parameters unchanged, the spri
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In blanking operation, the best way to improve the smoothness and squarness of the edges is to
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The function of draw bead in the deep drawing operation is to
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In producing a punched hole of $$20mm$$ diameter, the dimension of the punch is ........ given the radial die clearance
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In metal forming operation, the true strain in the $$X$$-direction is $$0.3$$ and in the $$Y$$-direction is $$-0.1.$$ Th
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Abbe's principle of alignment is used in measurements made in .................
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The combination of slip gauges to obtain a dimension of $$10.35$$ $$mm$$ will be
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A hole is specified as $$\phi 30 \pm 0.04mm$$ with $$\phi \,\,0.01\,\,M.$$ The virtual diameter of the hole (i.e the max
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