Which of the following is true about riser?(i) It permits the molten m – McqOptions

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1.	Which of the following is true about riser?(i) It permits the molten metal to rise above the highest point in the casting.(ii) Filling up of mould cavity can be visually checked from it.(iii) The casting solidifies directionally towards the riser.
A.	(i) and (ii)
B.	(i) and (iii)
C.	only (ii)
D.	(i), (ii) and (iii)
Answer» B. (i) and (iii)

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