ITI/NCVT Mechanic Motorcycle (AITT Theory) study guide
ITI/NCVT Mechanic Motorcycle (AITT Theory) · Work through your exam, one topic at a time.
The ITI/NCVT Mechanic Motorcycle (AITT Theory) is the written trade theory paper sat by trainees of the Mechanic Motorcycle (MMC) trade under the All India Trade Test, conducted by the National Council for Vocational Training through the state and central ITI network. It is intended for candidates who have completed institutional training in motorcycle servicing and who need the NCVT certificate for employment, apprenticeship progression or self-employment as a two-wheeler technician. The ITI/NCVT Mechanic Motorcycle (AITT Theory) study guide has 12 sections and about 4,234 words.
01Occupational Safety, Health and Environment
The AITT theory paper checks workshop safety in the Mechanic Motorcycle trade: hazard identification, personal protective equipment, fire fighting, chemical and battery handling, electrical safety, exhaust ventilation, waste disposal and first aid. Questions are usually scenarios rather than definitions.
356 words, about 2 min02Hand Tools
This domain examines correct selection, inspection and use of spanners, sockets, torque wrenches, screwdrivers, pliers, hacksaws, files, chisels, punches, pullers and circlip pliers. The exam favours questions about tool-to-fastener fit, mechanical advantage and damage caused by abuse.
372 words, about 2 min03Measuring Instruments and Workshop Practice
Expect questions on vernier calipers, micrometers, dial gauges, bore gauges, feeler gauges, plastigauge, torque wrenches, surface plates and bench work. You must know least count, zero error, correct reading procedure and the measurement each instrument is suited to.
354 words, about 2 min04Engineering Materials
The paper tests ferrous and non-ferrous metals, carbon percentage in steels, cast iron, aluminium alloys, bearing and gasket materials, plastics, rubber and heat treatment. Questions link material properties to motorcycle components and failure modes.
320 words, about 2 min05Fasteners and Fits
This domain covers ISO metric threads, thread pitch, bolt grades, torque, locking methods, washers, circlips, keys and the ISO hole-basis fit system. Questions test whether you can select a fastener and predict whether a joint will slide, locate or press.
366 words, about 2 min06Motorcycle Engine Construction and Working Principles
Questions cover four-stroke and two-stroke operation, bore, stroke, swept volume, compression ratio, valve timing, camshaft drive, valve clearance, piston rings, crankshaft and bearing arrangements. You must relate component geometry to gas flow and power.
338 words, about 2 min07Fuel, Ignition, Lubrication and Cooling Systems
This section spans carburettor and fuel-injection basics, air-fuel ratio, ignition coils, CDI/TCI, spark-plug heat range and gap, ignition timing, wet-sump lubrication, oil pumps and filters, and air or liquid cooling. Expect cause-and-effect questions linking mixture and ignition to overheating, fouling and knock.
366 words, about 2 min08Transmission, Clutch and Final Drive
This domain covers primary reduction, wet multiplate clutches, constant-mesh gearboxes, shift drums and forks, and chain, belt or shaft final drive. Questions ask you to calculate ratios and diagnose slip, drag, jumping out of gear and chain wear.
354 words, about 2 min09Frame, Suspension, Steering and Wheels
Questions cover frame types and materials, rake and trail, wheelbase, telescopic forks, swingarm and monoshock suspension, spring preload, damping, steering-head bearings, wheel runout, spokes and balancing. The exam expects you to link geometry and adjustment to stability and handling.
351 words, about 2 min10Brakes, Tyres and Wheel Alignment
This domain examines drum and disc brakes, hydraulic principles, brake fluid, bleeding, pad wear, ABS basics, tyre construction, pressure, tread wear, wheel balance and alignment. Questions often use hydraulic ratios or wear patterns to test reasoning.
355 words, about 2 min11Electrical, Battery and Electronic Systems
This domain covers Ohm's law, series and parallel circuits, lead-acid and lithium batteries, charging systems, stator and regulator-rectifier, starting, lighting, CDI/TCI, ECU, sensors, fuses and wiring faults. Expect voltage-drop and current calculations.
357 words, about 2 min12Diagnostics, Maintenance, Service and Repair
The final domain tests systematic fault finding, scheduled maintenance, service checks, repair decisions and road testing. Questions expect a logical sequence: verify the complaint, inspect, test, repair, confirm.
345 words, about 2 min