---
title: "ITI CNC Practical Exam: What to Study and Practice"
description: "An ITI CNC practical exam tests reading and running a program: the common G-code and M-code, setup, and safe operation. Here is what to study, not answers to copy."
url: https://gcodepractice.com/journal/iti-cnc-practical-exam-questions/
canonical: https://gcodepractice.com/journal/iti-cnc-practical-exam-questions/
author: "Lawrence Arya"
authorUrl: https://www.linkedin.com/in/vibecoding/
published: 2026-06-02
updated: 2026-06-02
category: "Practice"
tags: ["iti", "india", "practical exam", "test prep"]
lang: en
---

# ITI CNC Practical Exam: What to Study and Practice

> **TL;DR** An ITI CNC practical exam tests whether you can read a program, set up the machine, and run a job safely. The knowledge core is the common G-code and M-code, plus setup (offsets, tool changes) and safety. Study the codes for fast recall and practice setup on a real machine. This is study guidance, not a copy of any exam, which you should not rely on.

An ITI CNC practical exam is a working test: you read a program, set up the machine, and run a job while an examiner watches. That means there is no useful "answer key" to find, and the real preparation is building the skills the exam observes. Confirm the exact scope with your institute, since programs differ.

## What the practical checks

- **Reading a program.** Explain what each block does, including the common motion and spindle codes.
- **Setup.** Work offsets, tool length offsets, tool changes, and setting the part reference.
- **Safe operation.** Running the job with correct, careful procedure.
- **Measurement.** Checking the finished part against the drawing.

## What to study, and how

| Area | What to know | How to prepare |
| --- | --- | --- |
| Code recall | `G00`-`G03`, `M03`/`M05`, units, modes | Active recall, daily |
| Program reading | Narrate a full program | Practice on sample programs |
| Setup | Offsets, tool changes | Supervised machine time |
| Measurement | Calipers, micrometers | Real tools, known sizes |

## Build the code recall first

The reading portion rests on knowing the codes cold, and that is the part you can practice anywhere before machine time. Drill the [common G-codes](/journal/common-g-codes-for-cnc-beginners/) and [common M-codes](/journal/common-m-codes-for-cnc-beginners/) with the method in [beginner CNC code practice](/journal/beginner-cnc-code-practice/), and decide how much to memorize using [do I need to memorize G-code for the NIMS test](/journal/do-i-need-to-memorize-g-code-for-the-nims-test/) (the principle is the same for any practical). A free tool like [G-Code Sprint](/g-code-practice/) handles the code recall; setup and measurement come from supervised practice.

## Bottom line

An ITI CNC practical tests reading, setup, safe operation, and measurement. There is no answer key worth seeking; build the skills. Start with code recall, then practice setup and measurement on a real machine.

## Sources

- [LinuxCNC G-code reference](https://linuxcnc.org/docs/html/gcode/g-code.html)
- [Wikipedia: G-code](https://en.wikipedia.org/wiki/G-code)
- [CNCCookbook: G-code and M-code cheat sheet](https://www.cnccookbook.com/g-code-m-code-cnc-list-cheat-sheet/)

## Frequently asked questions

### What is on an ITI CNC practical exam?
Reading and explaining a program, setting up the machine (offsets, tools), and running a job safely, plus the common G-code and M-code knowledge behind it. Confirm the exact scope with your institute, since programs vary.

### Should I look for ITI CNC exam answers?
No. A practical exam tests whether you can actually do the work, so memorizing answers does not help and undermines the point. Study the codes and practice the setup instead.

### How do I prepare for an ITI CNC practical exam?
Drill the common codes for fast recall, practice reading programs, and rehearse setup on a real machine under your instructor. A free tool like G-Code Sprint covers the code recall that the reading portion needs.

*G-Code Sprint is a study and practice tool only. It is not affiliated with any institute and does not provide official exam content. Always follow your instructor, employer, machine manual, and shop safety procedures.*

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Source: https://gcodepractice.com/journal/iti-cnc-practical-exam-questions/
Author: Lawrence Arya — https://www.linkedin.com/in/vibecoding/