Multiple Choice
Which statement is not true for green sand moulding?
A) Moulds are cheapest
B) Preparation of moulds is less time consuming
C) Defect free and castings with good surface is obtained
D) none of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Melting point of copper<br>A)1444°C<br>B)1576°C<br>C)665°C<br>D)1083°C
Q2: Swelling of castings may occur due to<br>A)insufficient
Q4: A mould cracks after drying. It indicates<br>A)excess
Q5: In case of malleable iron castings, the
Q6: Inoculants are added to aluminium mainly for<br>A)grain
Q7: Permanent mould casting is also known as<br>A)chill
Q8: Consumable patterns are made of<br>A)polystyrene<br>B)wax<br>C)plaster of paris<br>D)any
Q9: Which wood can be used for making
Q10: In case of plaster moulding the mould
Q11: As the moisture content of sand increases<br>A)permeability