GATE ME 2010 | Casting Question 31 | Production Engineering

GATE ME 2010

MCQ (Single Correct Answer)

-0.6

For the case of molding, it is decided to replace a spherical riser of diameter $$100$$ $$mm$$ by a cylindrical riser. Determine size of the cylindrical riser that will have the identical solidification time. Assume blind risering & ratio of height to radius of cylinder is $$2.$$

$$10cm$$

$$100$$$$cm$$

$$50cm$$

$$5$$$$cm$$

GATE ME 2009

MCQ (Single Correct Answer)

-0.6

Match the following GATE ME 2009 Production Engineering - Casting Question 33 English

$$P - 1,\,\,Q - 3,\,\,R - 2,\,\,S - 4$$

$$P - 1,\,\,Q - 4,\,\,R - 2,\,\,S - 3$$

$$P - 3,\,\,Q - 4,\,\,R - 2,\,\,S - 1$$

$$P - 4,\,\,Q - 1,\,\,R - 2,\,\,S - 3$$

GATE ME 2008

MCQ (Single Correct Answer)

-0.6

While cooling, a cubical casting of side $$40mm$$ undergoes $$3\% ,\,\,4\% $$ and $$5\% $$ volume shrinkage during the liquid state, phase transition and solid state respectively. The volume of metal compensated from the riser is

$$2\% $$

$$7\% $$

$$8\% $$

$$9\% $$

GATE ME 2007

MCQ (Single Correct Answer)

-0.6

Volume of a cube of a side $$''l''$$ and volume of sphere of radius $$' r '$$ are equal. Both the cube and the sphere are solid and same material. They are being cast. The ratio of the solidification time of the cube to the same of the sphere is

$${\left( {4\pi /6} \right)^3}.{\left( {r/l} \right)^6}$$

$$\left( {4\pi /6} \right).{\left( {r/l} \right)^2}$$

$$\left( {4\pi /6} \right).{\left( {r/l} \right)^3}$$

$${\left( {4\pi /6} \right)^2}.{\left( {r/l} \right)^4}$$

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