GATE ME 2019 Set 1 — Question 23

MCQ+1 / -0.33EasyRiser & Gating DesignCastingManufacturing Processes

Manufacturing Processes → Casting → Riser & Gating Design

Last updated 5 September 2026

Question

In a casting process, a vertical channel through which molten metal flows downward from pouring basin to runner for reaching the mold cavity is called

Correct answer (B) sprue Solution In the gating system of a sand casting process, the molten metal is poured into a pouring basin. From there, it flows through a vertical channel called the sprue . The sprue leads to horizontal channels called runners, which then distribute the metal to the mold cavity through gates. Blister is a casting defect. Riser is a reservoir of molten metal used to compensate for shrinkage during solidification. Pin hole is a type of gas porosity defect. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (B) sprue Solution In the gating system of a sand casting process, the molten metal is poured into a pouring basin. From there, it flows through a vertical channel called the sprue . The sprue leads to horizontal channels called runners, which then distribute the metal to the mold cavity through gates. Blister is a casting defect. Riser is a reservoir of molten metal used to compensate for shrinkage during solidification. Pin hole is a type of gas porosity defect.

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