Inoculants are added to aluminium mainly for
A) grain refinement
B) directional solidification
C) purification
D) all of the above
Correct Answer:
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Q11: A casting process which can produce cylinders
Q12: When sulphur is to be removed from
Q13: A mould cracks after drying. It indicates
A)excess
Q14: Moisture content of the moulding sand is
Q15: Electric furnaces can usually operate upto a
Q17: Permanent mould casting is also known as
A)chill
Q18: In investment casting the pattern is made
Q19: Consumable patterns are made of
A)polystyrene
B)wax
C)plaster of paris
D)any
Q20: The function of riser is
A)to allow the
Q21: According to Chvorinov's equation, the solidification time
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