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GATE 2016 ME (ME1) – Question 32

Casting, Forming and Joining Processes · Casting: patterns, moulds, cores, solidification, riser and gating design, defects · 1 mark · Multiple choice

The part of a gating system which regulates the rate of pouring of molten metal is

  1. pouring basin
  2. runner
  3. choke
  4. ingate

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Show answer and explanation

Correct answer: (C) choke

Explanation

The choke is the smallest effective cross-section in the gating system. It limits the discharge for the available metallostatic head and therefore regulates pouring rate. Hence **choke, C**. Runners distribute metal and the pouring basin receives it, but neither is necessarily the controlling minimum section.