100+ Free ITI Technician Mechatronics (AITT Theory) Practice Questions

Pass your ITI/NCVT Technician Mechatronics — All India Trade Test (AITT) Theory under Craftsmen Training Scheme (CTS) exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately

100+ Questions

100% Free

Loading practice questions...

Same family resources

Explore More ITI/NCVT Trade AITT Theory (India)

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

ITI Mechanic (Refrigeration & Air-Conditioning) Trade Theory (NCVT/NSQF, India)

Practice Questions100 questions

ITI Solar Technician (Electrical) Trade Theory (NCVT/NSQF, India)

Practice Questions100 questions

Sample ITI Technician Mechatronics (AITT Theory) Practice Questions

Try these sample questions to test your ITI Technician Mechatronics (AITT Theory) exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which practice best reduces injury risk when filing on a bench vice in an ITI mechatronics workshop?

A.Disable the fire extinguisher area to create more workspace

B.Use appropriate PPE and secure the workpiece firmly in the vice

C.File toward your body for better control

D.Wear loose clothing so chips fall away freely

Explanation: Safe fitting practice requires PPE (eye protection, appropriate clothing) and a securely clamped workpiece so the job cannot slip. Loose clothing and filing toward the body increase entanglement and cut risk.

2For an electrical panel fire involving live equipment, which extinguisher type is generally preferred?

A.Water extinguisher directed at live conductors

B.CO2 or dry-chemical extinguisher suitable for electrical fires

C.Class D metal-fire powder only

D.Foam extinguisher only, with water backup

Explanation: Electrical fires require non-conductive extinguishing agents such as CO2 or appropriate dry chemical. Water conducts electricity and must not be used on live equipment.

3In the CTS Technician Mechatronics syllabus, 5S is taught primarily to improve:

A.Hydraulic oil viscosity grades

B.Only theoretical exam marks without shop impact

C.CNC G-code absolute addressing only

D.Shop-floor organisation, cleanliness and safe working habits

Explanation: 5S (Sort, Set in order, Shine, Standardise, Sustain) is a Kaizen/housekeeping framework used to keep the workshop organised, clean and safer — explicitly covered in Year-1 safety content.

4A vernier caliper reading combines the main scale and vernier scale to measure linear dimensions. The least count is typically:

A.The maximum opening of the jaws

B.Only the length of the depth rod

C.Always exactly 1 mm regardless of instrument design

D.The difference between one main-scale division and one vernier-scale division

Explanation: Least count of a vernier instrument equals the difference between one main-scale division and one vernier division (or equivalently main-scale division divided by number of vernier divisions). It defines the smallest measurable increment.

5In the ISO/IS system of limits and fits taught in the mechatronics curriculum, a clearance fit means:

A.The shaft is always larger than the hole after assembly

B.There is always intentional negative allowance (interference)

C.Only shrink-fit assembly is allowed

D.The hole is larger than the shaft so the parts assemble with clearance

Explanation: A clearance fit is designed so the hole size is larger than the shaft size within tolerance, allowing free assembly with clearance. Interference/transition fits are different classes under IS 919 / ISO limits and fits.

6On a standard metric outside micrometer with 0.5 mm pitch screw and 50 thimble divisions, one thimble division equals:

A.0.5 mm

B.1.0 mm

C.0.1 mm

D.0.01 mm

Explanation: A 0.5 mm pitch screw advances 0.5 mm per revolution. With 50 equal thimble divisions, least count = 0.5/50 = 0.01 mm. This is the common workshop micrometer resolution.

7Before cutting an internal metric thread with a hand tap, the hole should be:

A.Drilled to the correct tap-drill size (near the minor diameter)

B.Drilled to the major diameter of the thread

C.Left undrilled so the tap forms the entire hole

D.Reamed to the pitch diameter only after tapping

Explanation: Tapping requires a pre-drilled hole sized to the tap-drill chart (approximately the minor diameter) so the tap can cut the thread form without excessive torque or tap breakage.

8A surface plate in the fitting shop is primarily used as:

A.A hydraulic oil reservoir cover

B.A grinding wheel dressing tool

C.A soft anvil for heavy forging blows

D.A precision reference plane for marking and inspection

Explanation: Surface plates provide a flat, stable reference datum for marking-out with height gauges, checking flatness, and inspection layouts. They must be kept clean and protected from heavy hammering.

9On a centre lathe, facing is the operation that:

A.Trues a grinding wheel with a diamond dresser

B.Cuts a helical external V-thread only

C.Always mills a T-slot in one pass

D.Machines the end face of the workpiece square to the axis

Explanation: Facing machines the end surface of a workpiece so it is flat and perpendicular to the spindle axis. Threading, milling and wheel dressing are different operations/machines.

10Cutting speed in turning is most directly related to:

A.The peripheral speed of the workpiece surface relative to the tool (typically m/min)

B.Only the depth of cut in mm

C.Only the feed rate in mm/rev, independent of diameter

D.The coolant brand name

Explanation: Cutting speed is the relative surface speed between tool and work, commonly expressed in m/min and calculated from spindle rpm and workpiece diameter. Feed and depth of cut are separate machining parameters.

About the ITI Technician Mechatronics (AITT Theory) Exam

Technician Mechatronics is a two-year engineering CTS trade delivered through ITIs. Trainees learn workshop safety and fitting/machining, basic electricity and electronics, sensors and feedback, pneumatics and electro-pneumatics, hydraulics, PLC/HMI control, CNC and robotics, then integrate systems in mechatronics projects. AITT theory CBT plus practical assessment lead to the NTC.

Assessment

Summative AITT under DGT/NCVT for the two-year CTS Technician Mechatronics trade (NSQF Level 4; 2400 notional hours + 300 hours OJT/group project). Engineering-trade CBT: 75 MCQs / 150 marks in 2 hours — Trade Theory 38 + Workshop Calculation & Science 6 + Engineering Drawing 6 (100 marks) and Employability Skills 25 (50 marks). Trade Practical is assessed separately; formative (internal) assessment is maintained by the ITI. Successful candidates receive the National Trade Certificate (NTC).

Time Limit

2 hours for CBT (AITT July 2026 DGT guidelines). Practical duration follows the DGT/State Directorate schedule for the sitting.

Passing Score

33% minimum in Trade Theory and in Employability Skills; 60% minimum in Trade Practical and Formative Assessment (DGT CTS pass regulation / AITT July 2026 guidelines). No grace marks.

Exam Fee

CBT fee ₹213 per trainee for AITT July 2026 mains (plus applicable payment-gateway charges). Practical and other institute fees are notified separately on SIDH — confirm with your ITI. (Directorate General of Training (DGT) / National Council for Vocational Training (NCVT))

ITI Technician Mechatronics (AITT Theory) Exam Content Outline

Workshop Safety, Fitting & Metrology

OSH, 5S, fitting, limits/fits and precision measurement.

Machining — Lathe, Milling & Grinding

Turning, milling, grinding parameters and wheel selection.

10%

Basic Electricity, Motors & Drives

Circuits, motors, starters, drives and feedback devices.

Electronics & Power Devices

Rectifiers, regulators, transistors, op-amps and SCRs.

Panel Wiring & Protective Devices

MCB/ELCB, contactors, switches and insulation testing.

Digital Logic & Microcontrollers

Gates, flip-flops, counters and 8051 interfacing.

10%

Sensors, Transducers & Feedback

Proximity/photo/ultrasonic sensors, LVDT, load cell, PID.

12%

Pneumatics & Electro-Pneumatics

ISO 1219, FRL, valves, cylinders and sequencing.

12%

Hydraulics — Circuits, Pumps & Valves

Pascal, pumps, relief/flow control, oil and accumulators.

10%

PLC, HMI & Industrial Control

Ladder logic, timers/counters, HMI and fieldbus basics.

CNC, Robotics & Automation

CNC coordinates/offsets, robot anatomy and teach pendant.

Workshop Calculation & Engineering Drawing

WSC numeracy/science and orthographic projection for CBT.

How to Pass the ITI Technician Mechatronics (AITT Theory) Exam

What You Need to Know

Passing score: 33% minimum in Trade Theory and in Employability Skills; 60% minimum in Trade Practical and Formative Assessment (DGT CTS pass regulation / AITT July 2026 guidelines). No grace marks.
Assessment: Summative AITT under DGT/NCVT for the two-year CTS Technician Mechatronics trade (NSQF Level 4; 2400 notional hours + 300 hours OJT/group project). Engineering-trade CBT: 75 MCQs / 150 marks in 2 hours — Trade Theory 38 + Workshop Calculation & Science 6 + Engineering Drawing 6 (100 marks) and Employability Skills 25 (50 marks). Trade Practical is assessed separately; formative (internal) assessment is maintained by the ITI. Successful candidates receive the National Trade Certificate (NTC).
Time limit: 2 hours for CBT (AITT July 2026 DGT guidelines). Practical duration follows the DGT/State Directorate schedule for the sitting.
Exam fee: CBT fee ₹213 per trainee for AITT July 2026 mains (plus applicable payment-gateway charges). Practical and other institute fees are notified separately on SIDH — confirm with your ITI.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ITI Technician Mechatronics (AITT Theory) Study Tips from Top Performers

1Weight revision toward Year-2 professional knowledge: pneumatics/electro-pneumatics, hydraulics (meter-in/out, pumps, relief), PLC timers/counters/HMI and sensor selection (inductive vs capacitive vs photoelectric).

2Practice CBT-style mixed sets that include a few Workshop Calculation & Science and Engineering Drawing items, since those 12 questions sit inside the Trade Theory block.

3Pair theory with lab practice — ISO 1219 circuit reading, FRL setup, hydraulic power-pack pressure setting, PLC wiring and teach-pendant jogging — because formative and practical assessments still require 60%.

Frequently Asked Questions

What is the ITI/NCVT Technician Mechatronics AITT theory exam?

It is the All India Trade Test theory CBT administered by DGT for trainees completing the two-year CTS Technician Mechatronics course at ITIs (NSQF Level 4). Engineering-trade CBT covers Trade Theory (with Workshop Calculation & Science and Engineering Drawing) plus Employability Skills; a separate Trade Practical exam is also required for the National Trade Certificate.

How many questions and how much time are in the AITT CBT?

Per DGT AITT July 2026 guidelines, the CBT is 75 multiple-choice questions for 150 marks in two hours: 50 questions (100 marks) in the Trade Theory block (38 trade theory + 6 WSC + 6 engineering drawing) and 25 Employability Skills questions (50 marks).

What are the pass marks for Technician Mechatronics AITT?

DGT requires at least 33% in Trade Theory and 33% in Employability Skills, and at least 60% in Trade Practical and Formative Assessment. There are no grace marks. Confirm any session-specific notifications on the DGT exam corner or SIDH.

What is the CBT examination fee?

For AITT July 2026 mains, DGT notified a CBT fee of ₹213 per trainee (plus payment-gateway charges), payable online via SIDH. Practical fees are separate — ask your ITI for the exact amount for your sitting.