Multiple Choice Questions On Manufacturing Process and Production Engineering

46. The taper is provided on pattern for its easy and clean withdrawl from the mould is called.......

   A.Taper allowance

   B.Draft allowance

   C.Distortion allowance

   D.Pattern allowance

   E.Casting allowance

47. Sand slinger gives.......

   A.Better packing of sand near pattern

   B.Better packing of sand near the flask

   C.Uniform sand density in the mould

   D.All of the above

   E.None of the above

48. Accuracy of shell moulding is of the order of.........

   A.0.001 mm/mm

   B.0.003 to 0.005 mm/mm

   C.0.01 mm/mm

   D.0.1 mm/mm

   E.None of the above

49. The pouring temperature of gray cast iron is......

   A.1000^oC

   B.1250^oC

   C.1400^oC

   D.1550^oC

   E.1650^oC

50. For grey cast iron, the volumetric shrinkage is of the order of.......

   A.6% to 5%

   B.5% to 3.5%

   C.3.5% to 5.5%

   D.6.5% to 9.5%

   E.1.9% to negative value

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