Average amount of sand required in a foundry for making one tonne of casting is nearly
A) 2 tonnes
B) 20 tonnes
C) 0.1 tonne
D) 0.2 tonne
Correct Answer:
Verified
Q12: Which of the following process is used
Q13: Slag and dross can be removed by
A)skimming
Q14: Sand acquires a predetermined shape under pressure
Q15: Refractoriness in the moulding sand is due
Q16: Heat treatment of castings is usually done
Q18: On drying, wood
A)expands
B)shrinks
C)changes colour
Q19: Aluminium is not a very good material
Q20: Warped castings may be produced due to
A)poor
Q21: The most efficient shape of a series
Q22: The purpose of clay in a moulding
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