GATE ME 2024 Set 1 — Question 33

MCQ+1 / -0.33EasyCNC Programming (G & M Codes)CNC & Work HoldingManufacturing Processes

Manufacturing Processes → CNC & Work Holding → CNC Programming (G & M Codes)

Last updated 5 September 2026

Question

The preparatory functions in Computer Numerical Controlled (CNC) machine programing are denoted by the alphabet

Correct answer (A) G Solution In CNC programming, codes are used to instruct the machine tool: 1. G-codes are known as preparatory functions . They prepare the machine control unit (MCU) for a specific type of operation or motion, such as linear interpolation (G01), circular interpolation (G02/G03), or rapid positioning (G00). 2. M-codes are miscellaneous functions used for auxiliary actions like starting/stopping the spindle (M03/M05) or turning coolant on/off (M08/M09). 3. P is often used for dwell time or subprogram calls. 4. O is typically used for the program number. Thus, preparatory functions are denoted by the alphabet G. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

Review answer and solution without JavaScript

Interactive answer checking needs JavaScript. The published solution is available below.

Correct answer (A) G Solution In CNC programming, codes are used to instruct the machine tool: 1. G-codes are known as preparatory functions . They prepare the machine control unit (MCU) for a specific type of operation or motion, such as linear interpolation (G01), circular interpolation (G02/G03), or rapid positioning (G00). 2. M-codes are miscellaneous functions used for auxiliary actions like starting/stopping the spindle (M03/M05) or turning coolant on/off (M08/M09). 3. P is often used for dwell time or subprogram calls. 4. O is typically used for the program number. Thus, preparatory functions are denoted by the alphabet G.

Continue learning with Success Tracker

Use Success Tracker to ask about the reasoning, then try another GATE ME question to check your understanding.

AI-powered practice· Unlimited practice on eligible plans

PYQs with solutions: Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
Practice that adapts: Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
AI doubt support: Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.

Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.

This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.