Moisture content of the moulding sand is commonly
A) 5% - 15%
B) 1% - 4%
C) 2% - 8%
Correct Answer:
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Q9: Melting point of copper
A)1444°C
B)1576°C
C)665°C
D)1083°C
Q10: Rough surface of casting may result from
A)high
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
Q15: Electric furnaces can usually operate upto a
Q16: Inoculants are added to aluminium mainly for
A)grain
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
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