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Permeability of green sand ________(a) Increases with ramming(b) Decreases with ramming(c) Can increase and decrease as well with the amount of ramming(d) Does not alter with ramming |
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Answer» Right answer is (b) Decreases with ramming The best explanation: The permeability of green sand decreases with an intensity of ramming done on the sand. Hence, the amount of clay is adjusted to keep permeability in a profitable zone. |
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