GATE PI 1989
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GATE PI

Negative allowance is provided on the pattern to take care of
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For the same material, powder metallurgy process is superior to casting for
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Poor collapsibility of the mold leads to .......... type of casting defect in aluminium castings.
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The process by which shell like castings (like toys) are made is
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Green strength in powder metallurgy refers to the strength of
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What is the velocity of the steel at the bottom of the sprue if the sprue height is $$30$$ $$cm$$? Assume the frictiona
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Shrinkage allowance on pattern is provided to compensate for shrinkage when
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Molten aluminium was poured in a sand mold and the thickness of solid skin formed after $$20$$ seconds and $$50$$ second
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In welding brass with oxy-acetylene flame, the type of flame used is
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In welding a mild steel sheet using an oxy-acetylene flame, the total amount of acetylene consumed was $$8.0$$ liters th
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Match the following
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In $$HSS,$$ the tungsten can be substituted by
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Calculate the tonnage capacity of the broaching machine required to broach on the hole under the following conditions.
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The results of machining steel with $$2$$ grades of tool material are given below. For a $$180$$ $$min.$$ Tool life whic
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Abrasives are not used in
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In turning operation the surface finish can be improved by decreasing
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If the number of double strokes per minute in a shaper is calculated by ($$0.643\, \times \,$$ Cutting speed in $$mm/min
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Match the following
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If the $$z$$-axis & $$x$$-axis of $$CNC$$ lathe are provided with straight line controls, it is possible to carry ou
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The blank diameter used in thread rolling will be
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Collapsible tubes are made by
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At the last hammer stroke the excess material from the finishing cavity of a forging die is pushed into .............
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In a wire drawing operation diameter of $$6mm$$ is reduced in stages to a diameter of $$1.34mm.$$ Assuming ideally rigid
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Flatness of slip gages is checked with
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Outside diameter of bush is turned using a mandrel. The mandrel diameter is maintained as $${30^{\matrix{ { + 0.000}
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