Multiple Choice Questions On Sand Moulding Process
21. Sands are graded according to their.......
A.Source of origin
B.Strength
C.Permiability
D.Clay content and grain size
E.Any of the above
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D.Clay content and grain size
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22. Strength and permiability of served sand are related to.......
A.Grain size
B.Clay-content
C.Hardness
D.Moisture content
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23. The big adavantage of using synthetic sand in foundry shop is that.........
A.It is less costly
B.Its properties can be controlled easily
C.It possesses high moisture
D.It possesses high % of clay
E.It is highly refactory
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24. Facing sand used in foundry work comprises of......
A.Alumina, silica and clay
B.Silica and clay
C.Clay and alumina
D.Silica and alumina
E.Clay and silica
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25. Loam sand comprises of .......
A.50% sand and 10% moisture
B.40% clay and 10% moisture
C.50% clay and 18% moisture
D.80% clay and 20% moisture
E.None of the above
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