100+ Free ITI/NCVT Mechanic Motorcycle (AITT Theory) Practice Questions

Pass your DGT/NCVT Craftsmen Training Scheme — Mechanic Two & Three Wheeler (Job role: Mechanic, Motor Cycle) All India Trade Test Trade Theory exam on the first try — instant access, no signup required.

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Sample ITI/NCVT Mechanic Motorcycle (AITT Theory) Practice Questions

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

1During motorcycle workshop practice under CTS safety rules, which fire extinguisher type is most appropriate for a petrol fuel-spill fire?

A.Foam or dry-chemical extinguisher rated for flammable-liquid (Class B) fires

B.Water extinguisher intended only for ordinary combustibles (Class A)

C.CO2 extinguisher intended only for energised electrical (Class C) equipment fires with no liquid-fuel rating

D.Water extinguisher used as a high-pressure jet directed into the centre of the petrol puddle

Explanation: Petrol and other hydrocarbon fuel spills are Class B flammable-liquid fires. Foam or multipurpose dry-chemical extinguishers interrupt the fuel–air reaction on liquid surfaces. Water jets can spread burning petrol, so Class A water extinguishers are the wrong first choice for fuel fires.

2What is the safest practice when disposing of used engine oil after servicing a two-wheeler?

A.Pour it into a storm-water drain to keep the shop floor clean

B.Collect it in a sealed labelled container and send it for authorised recycling or disposal

C.Mix it with petrol and burn it in an open yard

D.Mix it into general workshop floor sweepings and dispose with ordinary rubbish

Explanation: Used engine oil is a hazardous waste. CTS trade theory stresses environmentally friendly workshop housekeeping: store used oil in sealed labelled containers and route it through authorised collection or recycling. Drains, open burning and mixed general waste contaminate soil and water.

3Before road-testing a repaired motorcycle from an ITI workshop, which requirement best matches CTS safety guidance?

A.Any trainee may test-ride immediately after assembly without authorisation

B.Road testing is never allowed under any CTS trade syllabus

C.Only an authorised person may move and road-test the vehicle after safety checks

D.Road-test immediately in traffic without checking brakes, lights or controls

Explanation: CTS Mechanic Two & Three Wheeler theory requires authorisation before moving or road-testing vehicles, plus basic checks that controls, brakes and lights work. Unauthorised rides risk injury and institutional liability.

4In 5S workshop housekeeping taught with automotive trade safety, what does the second S (Seiton / Set in order) primarily mean?

A.Discard all tools after each job so the bench stays empty

B.Clean machines thoroughly while leaving tools scattered without fixed locations

C.Sweep the floor only and leave drawers and racks unsorted

D.Arrange tools and parts so each item has a clear, labelled place for quick retrieval

Explanation: 5S Seiton means organise the workplace so tools, fasteners and parts have designated labelled locations. That reduces search time and trip hazards. Sorting (Seiri) removes unneeded items; shine and standardise come later in the sequence.

5Which electrical safety tip is most appropriate when working near a motorcycle battery and wiring harness?

A.Remove rings and watches, isolate power when practical, and avoid shorting battery terminals with tools

B.Wear metal jewellery to improve conductivity while probing circuits

C.Always weld directly across battery posts to check cable thickness

D.Pour water over the battery before every voltage measurement

Explanation: Jewellery and loose conductive tools can short battery posts and cause burns or fire. CTS electrical-safety tips emphasise isolating power when practical, protecting terminals, and keeping conductive objects clear of the battery.

6A trainee lifts an engine using a workshop hoist. Which practice aligns with CTS guidance on lifting equipment?

A.Skip periodic testing because hoists never fail

B.Use the hoist within its rated capacity and follow periodic testing and safe-handling procedures

C.Exceed the rated load briefly if the job is urgent

D.Stand directly under the suspended engine to guide it by hand

Explanation: CTS safety content requires safe handling and periodic testing of lifting equipment and staying within rated capacity. Overloading or standing under a suspended load can cause crushing injuries if the hoist or sling fails.

7Which instrument is most suitable for measuring the outside diameter of a motorcycle piston with high precision in an automotive workshop?

A.Steel rule alone without micrometre contact

B.Try square

C.Outside micrometre

D.Centre punch

Explanation: An outside micrometre is designed for precise external diameter measurement of pistons and similar cylindrical parts. Steel rules lack micrometre resolution; try squares check squareness; punches mark centres rather than measure diameter.

8When laying out a circular mark on a workpiece for motorcycle workshop practice, which pair of tools is typically used together?

A.Torque wrench and feeler gauge only

B.Dial bore gauge and vacuum gauge only

C.Hydrometer and densimeter only

D.Divider (or compass) with a centre punch and scriber on a marked centre

Explanation: Circular layout uses a punched centre and dividers or a compass to scribe the arc, often with Prussian blue or chalk for visibility. Torque and feeler tools serve fastening and clearance checks, not circle layout.

9What is Prussian blue commonly used for when marking motorcycle workshop jobs?

A.Coating a surface so scribed layout lines show clearly

B.Lubricating gearbox gears permanently

C.Sealing tyre punctures

D.Cooling welding tips

Explanation: Marking materials such as Prussian blue (or chalk) tint the surface so scriber lines contrast clearly during layout. They are not lubricants, tyre sealants or welding coolants.

10A feeler gauge in two-wheeler service is primarily used to measure:

A.Fuel octane rating in the tank

B.Small clearances such as valve clearance or spark-plug gap

C.Wheelbase length of the motorcycle

D.Battery open-circuit voltage

Explanation: Feeler gauges are thin calibrated leaves used to check small clearances—valve lash, plug gaps and similar fits—against workshop-manual specifications. They do not measure fuel chemistry, chassis length or electrical voltage.

About the ITI/NCVT Mechanic Motorcycle (AITT Theory) Exam

The CTS Mechanic Two & Three Wheeler trade (NCO 7231.0500/7231.0501; job role Mechanic, Motor Cycle) trains ITI candidates to service and overhaul motorcycles, scooters and three-wheelers. Professional knowledge covers safety and 5S, measurement and fitting, electrics and welding, engines and diagnosis, fuel systems including FI and LPG/CNG, chassis brakes and transmission, charging/ignition, and electric two/three-wheeler basics. Successful trainees earn the National Trade Certificate (NTC) after AITT.

Assessment

One-year CTS trade (1200 hours + 150 hours OJT/group project), NSQF Level 3.5. Summative AITT includes Trade Practical plus Computer-Based Test. Engineering-trade CBT: 75 questions / 150 marks / 2 hours covering Trade Theory (with Workshop Science & Calculation and Engineering Drawing items) and Employability Skills. Formative assessment and attendance gates apply for hall tickets per session guidelines.

Time Limit

CBT: 2 hours (75 questions). Practical: as scheduled by DGT/State Directorate for the AITT session (often multi-day windows).

Passing Score

Trade Practical and Formative assessment: minimum 60%. Other subjects including Trade Theory/CBT theory components: minimum 33% (CTS curriculum pass regulation; AITT 2024 CBT guidelines likewise cite 33% for Trade Theory and Employability Skills). Confirm your session circular.

Exam Fee

CBT fee Rs. 213 per trainee as notified in AITT 2024 CTS Exam Guidelines (SIDH/NIMI payment channels). Other ITI/state fees vary—confirm current charges with your institute and SIDH. (Directorate General of Training (DGT), Ministry of Skill Development and Entrepreneurship)

ITI/NCVT Mechanic Motorcycle (AITT Theory) Exam Content Outline

Workshop Safety, Environment & 5S

OSH, fire and fuel-spill safety, used-oil disposal, lifting equipment, authorised road testing, electrical safety and 5S housekeeping (ASC/N9801).

11%

Measuring, Marking & Precision Tools

Marking aids, micrometres, Vernier calipers, dial bore gauges, feeler gauges, torque wrenches and clearance measurements against service limits.

Fastening, Fitting & Hand Tools

Fasteners, locking devices, gaskets, oil seals, stud removal and correct hand-tool selection for fitting work.

Basic Electricity & Vehicle Circuits

Ohm’s law, series circuits, continuity, voltage drop, fuses and tracing two/three-wheeler electrical circuits.

Battery & Basic Electronics

Battery charging/testing, parasitic drain, diodes, thermistors, regulator/rectifier basics and simple logic gates.

Welding & Joining

Oxy-acetylene flame types, edge preparation and sound butt-weld practice for automotive joints.

Vehicle Specs & General Servicing

VIN/specification data, CMVR-style classification concepts, service equipment, washing, lubrication and post-service checks.

Engine Construction & Overhaul

2/4-stroke SI basics, pistons/rings, connecting rods, valve trains, cam chains and overhaul measurements.

Engine Diagnosis, Cooling & Lubrication

No-start diagnosis, mixture clues, compression testing, oil contamination, lubrication purpose and throttle free play.

Fuel Systems (Carburetion & Injection)

Stoichiometry, fuel taps/strainers, CV carburettors, float height, air cleaners, injectors, ECM scan and MAP/IAP/O2 sensors.

LPG/CNG & Emissions

Gas-kit safety, catalytic converters, hydrocarbon emissions and exhaust analyser/smoke testing.

Steering & Suspension

Steering stem/handlebar, fork inspection, hard steering, pull diagnosis and rear suspension layouts.

Wheels & Brakes

Drum vs disc brakes, brake fluid, bleeding, shoes/pads, master cylinders, ABS concepts and tyre pressures.

Transmission & Final Drive

Wet multi-plate clutches, free play, chain slack, constant-mesh gearboxes, scooter automatics/CVT and clutch slip.

Charging, Lighting & Starting

Regulator/rectifier, overcharge, starter motors, dim lights, headlight aim and leakage current.

Ignition System

No-spark diagnosis paths and correct spark-plug gap setting.

Electric Two & Three Wheelers

HV safety, BMS, inverter/drive electronics and EV-specific maintenance emphasis.

How to Pass the ITI/NCVT Mechanic Motorcycle (AITT Theory) Exam

What You Need to Know

Passing score: Trade Practical and Formative assessment: minimum 60%. Other subjects including Trade Theory/CBT theory components: minimum 33% (CTS curriculum pass regulation; AITT 2024 CBT guidelines likewise cite 33% for Trade Theory and Employability Skills). Confirm your session circular.
Assessment: One-year CTS trade (1200 hours + 150 hours OJT/group project), NSQF Level 3.5. Summative AITT includes Trade Practical plus Computer-Based Test. Engineering-trade CBT: 75 questions / 150 marks / 2 hours covering Trade Theory (with Workshop Science & Calculation and Engineering Drawing items) and Employability Skills. Formative assessment and attendance gates apply for hall tickets per session guidelines.
Time limit: CBT: 2 hours (75 questions). Practical: as scheduled by DGT/State Directorate for the AITT session (often multi-day windows).
Exam fee: CBT fee Rs. 213 per trainee as notified in AITT 2024 CTS Exam Guidelines (SIDH/NIMI payment channels). Other ITI/state fees vary—confirm current charges with your institute and SIDH.

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/NCVT Mechanic Motorcycle (AITT Theory) Study Tips from Top Performers

1Weight revision to high Professional Knowledge hours: measurement/tools, brakes/wheels, fuel systems (carb + FI), charging/AC generator topics, and engine diagnosis—not only memorising part names.

2Pair each theory topic with workshop practice: feeler-gauge clearances, compression tests, brake bleeding, chain slack, and multimeter voltage-drop checks match how AITT items are framed.

3For LPG/CNG and EV modules, prioritise safety procedures and system purpose (BMS, inverter, gas-kit leak checks) over memorising unverifiable numeric thresholds that are not published in the CTS PDF.

Frequently Asked Questions

Is ITI Mechanic Motorcycle the same as Mechanic Two & Three Wheeler?

Yes for current CTS naming: DGT’s curriculum title is Mechanic Two & Three Wheeler, and the job-role description is Mechanic, Motor Cycle (NCO 7231.0500/7231.0501). Older materials may say Mechanic Motor Cycle; practice content should follow the current CTS learning outcomes.

How many questions are on the AITT CBT for this engineering trade?

Per DGT AITT 2024 CTS Exam Guidelines, the CBT has 75 questions for 150 marks in 2 hours. Engineering trades include Trade Theory with Workshop Science & Calculation and Engineering Drawing items plus Employability Skills. This practice bank provides 100 trade-theory-focused MCQs for revision.

What is the pass mark for AITT Trade Theory?

The CTS curriculum pass regulation sets a minimum of 33% for subjects other than Trade Practical and Formative assessment (which require 60%). AITT 2024 CBT guidelines also state a 33% minimum for Trade Theory and Employability Skills. Always confirm the circular for your exam session.

What does the CBT fee cover?

AITT 2024 guidelines notified a CBT fee of Rs. 213 per trainee, payable online via SIDH (or bulk NIMI account routes for some government ITIs). Practical and other institute fees are separate and set locally—verify current amounts before your session.