ITI Mechanic Auto Body Painting (AITT Theory)
More study resources
Cheat sheet
Keep the key ideas within reach.
ExploreKey terms
Get comfortable with the vocabulary.
ExploreStudy plan
Give each week a clear focus.
ExploreCommon mistakes
Understand the traps and how to avoid them.
ExploreCase studies
Put your knowledge to work in context.
ExploreExam-day guide
Prepare for the day ahead.
ExploreAbout this exam
The ITI Mechanic Auto Body Painting (AITT Theory) is the theory paper of the All India Trade Test for trainees who have completed the Mechanic Auto Body Painting trade under the Craftsman Training Scheme at an Industrial Training Institute. It is written for apprentices and ITI trainees who have finished workshop instruction in refinishing and now need to demonstrate that they understand the underlying principles, not just the hand skills. The paper tests trade theory across the full refinishing workflow: workshop safety and tool care, substrate assessment and surface preparation, paint materials and mixing, spray gun setup and application technique, body filler and panel repair, primers and sealers, topcoats, clearcoats and defect diagnosis, health and environmental controls, and basic measuring and estimating. Expect a computer-based multiple-choice paper delivered in the AITT online mode. Most candidates find the practical knowledge familiar; the difficulty lies in precise terminology, defect causes, mixing ratios and safety rules. Prepare by working through your trade theory syllabus topic by topic, revising from your own workshop notes and the official NCVT/ITI study material, and practising objective questions until you can explain why each wrong option is wrong. Confirm the current exam notification, schedule and logistics on the official AITT/NCVT portal, since those details change between sessions.
What you'll study
About ITI Mechanic Auto Body Painting (AITT Theory) preparation
What is the AITT theory exam and who takes it?
It is the theory component of the All India Trade Test taken by trainees who have completed the Mechanic Auto Body Painting trade under the Craftsman Training Scheme. Passing both theory and practical components is what leads to the national trade certificate. Your institute confirms eligibility and enrolment.
Is the exam computer-based?
Yes. AITT papers are delivered in online computer-based mode, so questions appear on screen with multiple-choice options. Practise reading questions on screen and using the on-screen navigation and review features rather than relying on paper habits.
How many questions are there and how long do I get?
The official body publishes the current question count and duration for each session, and they can change between exam cycles. Do not rely on numbers from older batches or coaching notes. Check the current AITT notification and your admit card on the official NCVT/AITT portal.
What is the passing score and what does it cost?
Passing marks, examination fees and any re-examination charges are fixed by the official authority for each session and are published in the current notification. Confirm them on the official portal before you pay or plan, since figures from previous years may no longer apply.
Can I retake the exam if I fail one component?
Retake and supplementary arrangements are governed by the official AITT rules in force for your batch, including how many attempts are allowed and within what period. Your institute is the correct channel for applying, and the official portal carries the current policy.
How difficult is the paper in practice?
Most questions test applied workshop knowledge rather than abstract theory, so trainees who paid attention during practical work usually recognise the content. The common losses come from mixing ratios, defect causes, abrasive grades, safety rules and terminology, where two options look plausible and only one is technically correct.
What should I study first?
Start with surface preparation and paint materials, because almost every later topic depends on them. Then move to spray equipment and application technique, followed by body filling and panel repair, undercoats, topcoats and defects. Finish with safety, environment and estimating, and revise the whole syllabus in the final weeks.
Why do candidates lose marks even when they know the trade?
Typical causes are confusing similar defects such as solvent popping and pinholing, forgetting the reason behind a mixing ratio, misreading a question that asks for the least likely cause, and skipping safety and waste-disposal topics as unimportant. Read each stem carefully and eliminate options deliberately.
Where can I confirm exam dates and my centre?
Only the official AITT/NCVT portal and your own institute can confirm schedules, centre allotment and admit card details. Treat dates circulating on social media or in coaching handouts as unverified until they match the official notification.