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GATE 2016 ME (ME3) – Question 34

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

Match the following part programming codes with their respective functions Part Programming Codes Functions P. G01 I. Spindle stop Q. G03 II. Spindle rotation, clockwise R. M03 III. Circular interpolation, anticlockwise S. M05 IV. Linear interpolation

  1. P – II, Q – I, R – IV, S – III
  2. P – IV, Q – II, R – III, S – I
  3. P – IV, Q – III, R – II, S – I
  4. P – III, Q – IV, R – II, S – I

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Correct answer: (C) P – IV, Q – III, R – II, S – I

Explanation

G01 commands linear interpolation; G03 commands counterclockwise circular interpolation. M03 starts clockwise spindle rotation and M05 stops the spindle. These correspond to I–IV matches shown in **C**. G codes describe motion modes while these M codes control the spindle.