GATE PI 2014
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## GATE PI

Chills are used in casting moulds to
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For a given volume of a riser, if the solidification time of the molten metal in riser needs to be quadrupled, the surfa
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The system of equations, given below, has $$x+2y+4z=2$$$$$4x+3y+z=5$$$ $$3x+2y+3z=1$$$View Question Directional derivative of $$\phi = 2xz - {y^2}$$ at the point $$(1, 3, 2)$$ becomes maximum in the direction of View Question If $$\,\phi = 2{x^3}{y^2}{z^4}$$ then $${\nabla ^2}\phi$$ is View Question In a given day in the rainy season, it may rain$$70$$% of the time . If it rains, chance that a village fair will make a View Question A simple random sample of $$100$$ observations was taken form a large population. The sample mean and the standard devi View Question Marks obtained by $$100$$ students in an examination are given in the table What would be the mean, median, and mode View Question Using the Simpson's $$1/{3^{rd}}$$ rule, the value of $$\,\int {ydx} \,\,$$ computed, for the data given below, is View Question If the equation $$sin(x)$$ $$\, = {x^2}$$ is solved by Newton Raphson's method with the initial guess of $$x=1,$$ then t View Question Brazing and soldering are View Question In an arc welding operation carried out with a power source maintained at $$40$$ volts and $$400$$ amperes, the consumab View Question A spindle speed of $$300$$ $$rpm$$ and a feed $$0.3mm/revolution$$ are chosen for longitudinal turning operation on an e View Question Match the following: View Question Reaming is a process used for View Question An $$HSS$$ drill of $$20mm$$ diameter with $$5mm$$ cone height is used to drill a through hole in a steel work-piece of View Question In an open loop, point-to-point controlled $$CN$$ drilling machine, a stepper motor, producing $$200$$ angular steps per View Question Each axis of $$NC$$ machine is driven by a stepper motor drive with a lead screw. The pitch of lead screw is $$p$$ $$mm. View Question A$$CNC$$instruction$$G91\,\,\,G01\,\,\,X30\,\,\,Y40\,\,\,F100$$commands the movement of tool along the path at a fee View Question A moving mandrel is used in View Question In an open die forging, a circular disc is gradually compressed between two flat plates. The exponential decay of normal View Question A$$80mm$$thick steel plate with$$400mm$$width is rolled to$$40mm$$thickness in$$4$\$ passes with equal r
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The alignment test ''Spindle square with base plate'' is applied to the radial drilling machine. A dial indicator is fix
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