Casting - Casting objective questions and answers


6. In a permanent mould casting method.......


   A.Molten metal is fed into the cavity in metallic mould by gravity

   B.Metal is poured into die cavity,and after a predeterminded time the mould is inverted to permit a part of metal still in molten state to flow out of cavity

   C.Cavity is filled with a precalculated quantity of metal and a core or plunger is inserted to force the metal into cavity

   D.Metal is forced into mould under high pressure


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A.Molten metal is fed into the cavity in metallic mould by gravity

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7. Investment casting is used for.......


   A.Shapes which are made by difficulty using complex patterns in sand casting

   B.Mass production

   C.Shapes which are very complex and intricate and can't be cast by any other method

   D.Stainless steel


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C.Shapes which are very complex and intricate and can't be cast by any other method

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8. Centrifugal method of casting is used to.........


   A.Ensure purity and density at extremities of a casting

   B.Cast symmetrical objects

   C.Obtain high density and pure castings

   D.Use heavy cast iron mould to act as chill


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C.Obtain high density and pure castings

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9. In die casting process......


   A.Molten metal is fed into the cavity in metallic mould by gravity

   B.Metal is poured into die cavity,and after a predeterminded time the mould is inverted to permit a part of metal still in molten state to flow out of cavity

   C.Cavity is filled with a precalculated quantity of metal and a core or plunger is inserted to force the metal into cavity

   D.Metal is forced into mould under high pressure


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D.Metal is forced into mould under high pressure

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10. The hot chamber die casting method is used to cast.......


   A.Brass

   B.Magnesium

   C.Aluminium

   D.Alloys of lead, tin, and zinc

   E.All of the above


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D.Alloys of lead, tin, and zinc

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