The GATE Grind

GATE 2018 ME (ME1) – Question 25

Computer Aided Manufacturing and Automation · NC/CNC machines and CNC programming · 1 mark · Multiple choice

A CNC interpolator ______.

  1. controls spindle speed
  2. coordinates axis movements
  3. operates the tool changer
  4. commands canned cycles

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Correct answer: (B) coordinates axis movements

Explanation

The interpolator converts a commanded path into synchronized position increments for the controlled axes, so their combined motion follows the desired line or curve. It therefore **coordinates axes movements, B**. Spindle speed and tool changing are separate control functions.