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The shape of the open riser is _________

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in Foundry and Forging by (110k points)
The shape of the open riser is _________

(a) Circular

(b) Cylindrical

(c) Cubical

(d) Rectangular

The question was asked in an interview for internship.

Question is from Types of Risers in section Concept of Gating and Risering of Foundry and Forging

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Best answer
The correct answer is (b) Cylindrical

To elaborate: In a open riser, the top of the riser was exposed to the atmosphere. An open riser is connected either at the top of the cope or on the side at the parting line. Hence, the shape of the open riser is cylindrical to facilitate these connections.

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