BHEL Artisan Syllabus 2026 & Exam Pattern: Detailed Trade-Wise Topics

Selection Process

The BHEL Artisan Selection Process 2026 primarily involves a Computer-Based Test (CBT), followed by a Skill Test and Document Verification. Candidates must qualify in each stage to be considered for final selection.

1. Computer-Based Test (CBT): Candidates will first appear for an online objective type examination. This test assesses knowledge in Trade-Related subjects, Engineering Calculations, and Reasoning.
2. Skill Test: Shortlisted candidates from the CBT will be called for a Skill Test. This stage evaluates practical knowledge and proficiency in their respective trades.
3. Document Verification (DV): Candidates who qualify the Skill Test will undergo Document Verification, where their eligibility and submitted documents will be checked.

Exam Pattern

The BHEL Artisan Exam Pattern 2026 consists of 120 objective-type multiple-choice questions for a total of 120 marks. The examination duration is 90 minutes, with a negative marking of 0.25 marks for each incorrect answer.

• The examination will have 120 questions, each carrying 1 mark.
• There will be a negative marking of 0.25 marks for every incorrect answer.
• The questions and options will be trilingual (Hindi, English, and one vernacular language), except for Foundryman and Electronics Mechanic Trades.
• Use of calculators, smart devices, and study materials is strictly prohibited.

Detailed Subject-Wise Syllabus

The BHEL Artisan Syllabus 2026 covers various trade-specific topics, engineering calculations, and reasoning ability. Candidates must focus on all sections to score well in the Computer-Based Test.

Syllabus For Electrician Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Basic Electrical Engineering: Ohm’s Law, Kirchhoff’s Laws, Resistance, Conductance, Power, Energy, Efficiency, Series and Parallel Circuits, AC/DC Circuits, Electrical Units and Measurements.
• Electrical Machines: Types of Motors (DC, Induction, Universal), Transformers (working principle, types, applications), Alternators and Generators, Motor Starters and Speed Control Methods.
• Wiring & Installation: Types of wiring (Cleat, Casing-Capping, Conduit), Wiring Accessories (MCB, DB, Fuse, etc.), Wiring diagrams (single line, schematic), Fault finding, Earthing techniques.
• Tools, Safety & Maintenance: Hand tools, PPE, Electrical Safety Practices (shock prevention, fire hazards), Preventive and breakdown maintenance.
• Electrical Drawing & Reading: Interpreting circuit diagrams, Panel wiring diagrams, Symbols in electrical drawings.
• Measuring Instruments: Multimeter, Megger, Voltmeter, Ammeter, Wattmeter, Energy Meter, Clamp Meter.
• Earthing and Grounding: Purpose, methods (Pipe, Plate, Rod), Earth resistance testing.
• Fundamentals of Electronics: Diodes, Rectifiers, LEDs, Transistors (basic function), Relays and Contactors.
• Batteries and UPS: Battery types, charging methods, safety, Inverter and UPS (working and applications).
• Industrial Electricals: Basics of PLC, control panels, Electrical motors (HT/LT), Electrical machines manufactured by BHEL.

Engineering Drawing & Workshop Calculation (30 Marks)

• Engineering Drawing: Reading Electrical Sign and Symbols, Circuit Diagram, Layout drawing, Sketches of Electrical components, Wiring diagram, Earthing diagram, Schematic diagram of plate and pipe earthing, Block diagram of Instruments & equipment.
• Workshop Calculation: Unit, Fractions, Square root, Ratio and Proportions, Percentage, Algebra, Mensuration (Area and perimeter of square, rectangle, parallelogram, triangles), Profit and loss, Simple and compound interest, Estimation and Costing, Material Science, Heat & Temperature and Pressure, Elasticity.

Syllabus For Electronics Mechanic Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Hand tools and their uses: Identify, tools; filing, hacksawing, fitting, drilling, and basic metalwork.
• Basics of AC and Electrical Cables: Identify, test, measure, and prepare electrical cables; basic electrical concepts and cable specs.
• Single range meters: Set meters; check continuity; measure voltage and current.
• Cells & Batteries: Identify terminals, measure voltage, charge/discharge, test readiness, types and specifications.
• AC & DC measurements: Use multimeter, CRO/DSO, and function generator to measure and observe electrical parameters; learn meter types, controls, and maintenance.
• Digital Storage Oscilloscope: Identify controls, measure signal parameters, print signals, and build/test function generator; learn features and applications of DSO and CRO.
• Soldering/ De-soldering and Various Switches: Practice soldering/de-soldering, repair PCB tracks, identify and use various switches, and make switch panel boards.
• Active and Passive Components: Identify and test resistors, inductors, capacitors, relays, and circuit breakers; Ohm’s and Kirchhoff’s laws; RC circuits and resonance circuits.
• Power Supply Circuits: Test diodes and transformers; build and test rectifiers; measure ripple; voltage regulators; transformer types and diode basics.
• IC Regulators: Test diodes and transformers, build and test rectifiers and voltage regulators, measure ripple and regulation. Construct fixed and variable IC-based voltage regulators (78/79 series, LM317T, IC723).
• Transistor: Identify and test transistors, understand construction and terminals, learn biasing, characteristics, and applications as switches and amplifiers.
• Amplifier: Build and test various transistor amplifiers (fixed, emitter, voltage divider bias, common emitter, collector, biasing, configurations, characteristics, gain, and feedback.
• Oscillators: Build and test Colpitts, Hartley, RC phase shift, and crystal oscillators; demonstrate astable, monostable, and bistable multivibrators; understand positive feedback.
• Wave shaping circuits: Build and test shunt, series, dual clippers, clampers, and Zener diode peak clippers.
• Power Electronic Components: Identify power components; build and test FET amplifiers, SCR circuits, TRIAC dimmers, and UJT oscillators;, terminals, and applications.
• MOSFET & IGBT: Identify and test MOSFETs and IGBTs, characteristics, switching speed, and differences from FETs and transistors.
• Opto Electronics: Test LEDs, circuits with photovoltaic cells, photodiodes, and phototransistors; characteristics and applications of optical sensors and opto-isolators.
• Basic Gates: Truth tables of logic gates; build gates using NAND/NOR; test digital ICs; learn digital basics and number systems.
• Combinational Circuits: Build and test adders, subtractors, decoders, encoders, multiplexers, and demultiplexers.
• Flip Flops: Identify and test various flip-flop ICs (RS, D, T, JK), latches, and understand timing and applications.
• Op-Amp & Timer 555 Applications: Test analog ICs, Op-Amp circuits (amplifiers, integrators, comparators), and construct timer 555 circuits (astable, monostable, VCO, PWM).
• Electronic Cables & Connectors: Types of cables/connectors, soldering, testing, and PC/network cable setups.
• Basic SMD (2, 3, 4 terminal components): Identify, de-solder, and solder 2, 3, 4 terminal SMD parts; check PCB continuity; find loose solder and broken tracks. Learn SMD advantages, reflow soldering, hardware selection, and inspection.
• SMD Soldering and De-soldering: Set up SMD soldering station, use crimping tools for various IC packages, solder/de-solder ICs, rework defective components, inspect solder quality, and understand SMT equipment.
• PCB Rework: Inspect, test, and repair single and double-layer PCBs. Detect solder joint defects, fix damaged tracks, pads, and solder masks. Learn ESD prevention and non-soldering interconnections.
• Protection devices: Identify types of fuses, holders, MCBs, ELCBs, contactors, and relays; understand fuse ratings and working voltages. Test MCBs, ELCBs, DC motors, and stepper motors; understand motor control and protection devices.
• Communication electronics: Practice AM/FM modulation and demodulation, test transmitters/receivers, study antennas, modulation types, and digital signal techniques.
• Microcontroller (8051): Identify ICs, configure ports, blink LEDs, use timers, write simple programs. Learn architecture, memory, registers, and compare 8051/8052. Intro to PIC.
• Sensors, Transducers used in IoT Applications: Identify and use sensors (temperature, proximity, load cells). Measure and detect signals. Basics of transducers. Connect and program microcontroller (LED, buzzer, sensors). Intro to IoT and smart systems.
• Analog IC Applications: Build simple projects using ICs 741, 723, 555, 7106, 7107. Examples: laptop protector, battery monitor, metal detector, smoke detector, water level controller, etc.
• Digital IC Applications.
• Fiber optic communication.
• Digital Panel Meter: Use LED/LCD displays with driver ICs to show text and measure current. Learn seven-segment displays, multiplexing, and DPM ICs.
• SMPS and Inverter: Identify, dismantle, test, troubleshoot, repair, install SMPS and inverters. Build/test DC-DC converters.Learn working principles.
• UPS: Connect and test battery and load; identify UPS components and circuits; monitor voltages; perform backup load test. UPS types, principles, specs, installation, and protections.
• Solar Power (Renewable Energy System): Wire solar controller, connect batteries & inverter, test solar panel with load, install solar inverter, measure charging time. Learn solar energy principles, PV cells, modules, systems, controllers, and safety.
• LED Lights: Identify and connect LED stacks and circuits. Series/parallel LED strings and matrix. Test voltages. LED panel types and driving.
• LCD and LED TV: Identify, dismantle, troubleshoot, repair, and test TVs and remotes. Connect external devices. Learn basics of TV types, interfaces, and remotes.

Engineering Drawing & Workshop Calculation (30 Marks)

• Engineering Drawing: Engineering Drawing and Drawing Instruments, Conventions, Sizes and layout of drawing sheets, Title Block, Free hand drawing of Geometrical figures and blocks with dimension, Free hand drawing of hand tools and measuring tools, Lines - Types and applications, Geometrical figures, Lettering & Numbering, Electronic Circuit Diagram, Electronic Layout drawing, Electronics Sign and Symbols, Electronics components, Block diagram of Instruments & equipment of trades.
• Workshop Calculation: Unit, Fractions, Square root, Ratio and Proportions, Percentage, Algebra, Estimation and Costing, Material Science, Heat & Temperature and Pressure, Trigonometry.

Syllabus For Fitter Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Marking off and layout tools: Dividers, scribing block, try square, ordinary depth gauge, protractor – description, classification, material, care & maintenance.
• Cold chisels: Materials, types, cutting angles.
• Metal cutting machines: Power Saw, band saw, Circular saw.
• Measuring Instruments: Micrometer (outside, inside, depth), Digital micrometer, Vernier calipers, Vernier bevel protractor, Dial Vernier Caliper, Digital Vernier caliper, Vernier height gauge.
• Drilling processes: Common types (bench, pillar, radial), gang and multiple drilling machine, Determination of tap drill size.
• Marking and measuring tools: Wing compass, tinman’s square tools, snips, Tinman’s hammers and mallets, sheet metal tools.
• Trammel: Description, parts, uses.
• Hand grooves: Specifications and uses.
• Sheet and wire gauge.
• Welding: Precautions in electric and gas welding, safety equipment, Machines and accessories, welding transformer, welding generators, Welding hand tools, carbon dioxide welding, H.P. welding equipment, L.P. welding equipment.
• Types of Joints: Butt and fillet as per BIS SP:46-1988 specifications. Gases and gas cylinder description, kinds, main difference and uses.
• ARC welding: Setting up parameters, selection of Welding electrodes.
• Oxygen acetylene cutting: Machine description, parts, uses, method of handling cutting torch.
• Drill: Material, types (Taper shank, straight shank), parts and sizes, Drill angle, cutting speed feed, R.P.M., Drill holding devices, Drill troubles, Drill kinds, grinding of drill.
• Counter sink, counter bore and spot facing: Tools and nomenclature.
• Reamer: Material, types (Hand and machine reamer), kinds, parts and their uses, Determining hole size, Reaming procedure.
• Screw threads: Terminology, parts, types and their use, Screw pitch gauge, taps (B.S.W., B.S.F., B.A. & B.S.P., metric /BIS).
• Grinding wheel: Abrasive, grade structures, bond, specification, use, mounting and dressing, Selection of grinding wheels. Bench grinder parts and use.
• Interchangeability: Necessity in Engg, field definition, BIS Definition, types of limit, terminology of limits and fits.
• Maintenance: Total productive maintenance, Autonomous maintenance, Routine maintenance, Maintenance schedule, Preventive maintenance, Section inspection, lubrication survey, system of symbol and colour coding.
• Templates and Radius/fillet gauge, feeler gauge, hole gauge.
• Metallurgical and metal working processes: Heat treatment (normalizing, annealing, hardening and tempering, case hardening and carburising).
• Gauges: Types of gauge commonly used in gauging finished product, Method of selective assembly.

Engineering Drawing & Workshop Calculation (30 Marks)

• Engineering Drawing: Engineering Drawing and Drawing Instruments, Conventions, Sizes and layout of drawing sheets, Title Block, Free hand drawing of Geometrical figures and blocks with dimensions, Freehand drawing of hand tools and measuring tools, Lines - Types and applications, Geometrical figures, Lettering & Numbering, Reading of dimension and Dimensioning Practice, Concept of axes plane and quadrant, Concept of Orthographic and Isometric projections, Method of first angle and third angle projections and Symbolic representation.
• Workshop Calculation: Unit, Fractions, Square root, Ratio and Proportions, Percentage, Algebra, Mensuration (Area and perimeter of square, rectangle, parallelogram, Triangles, circle, semi-circle, circular ring, sector of circle, hexagon and ellipse, Surface area and volume of solids), Levers and Simple machines, Trigonometry, Centre of gravity, Area of cut out regular surfaces and area of irregular surfaces, Elasticity, Heat treatment and advantages, Estimation and Costing.

Syllabus For Foundryman Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Introduction to Foundry: Principles, types, advantages of metal castings, quality assurance.
• Gating System: Elements, types, functions, risers, feeder’s fluxes, chills, directional solidification, exothermic materials.
• Sand Testing and Casting Process: Types of sand, moisture content test, permeability test, Pressure die casting, resin bonded sand mold casting, CO2 (Carbon Dioxide) Moulding process.
• Mould Coating: Types and process of applying coatings, Removal of cores, cleaning, and inspection of casting.
• Mould and Moulding Process: Types of moulds (green sand, dry sand), Parts of Mould (Pouring basin, ingate, cope), Hand Moulding (Bench, floor), Machine Moulding (Hand-operated, power-operated).
• Moulding Sand: Properties (porosity, permeability, collapsibility), Principal Ingredients, Types of sand, Classification of Sand, Characteristics of sand, Preparation of Sand.
• Foundry Tools: Marking, measuring, and other types of tools.
• Patterns: Various types of patterns used in casting.
• Furnaces: Types used for melting and refining (induction furnace, VAD), Melting Charge Calculation for cast iron and steel, Non-Ferrous Metals casting processes.
• Heat Treatment Furnaces: Fundamentals and types (normalizing, tempering).
• Iron-Carbon Equilibrium Diagram: Carbon steel phases and microstructure.
• Occupational Safety and Health: Causes of accidents and fire, use of personal protective equipment (PPE).

Engineering Drawing & Workshop Calculation (30 Marks)

• Workshop Calculations: Units, Fractions, Square root, Ratio and Promotions, Percentage, Material Science, Mass, Weight, Volume and Density, Work, Power and Energy, Mensuration, Levers and Simple Machines, Trigonometry.
• Engineering Drawing: Drawing Conventions, Sizes and Scales of a drawing, Drawings Instruments (2D & 3D Tools), Projection Systems (Orthographic & Isometric views), Sectional Views and Assembly Views, Various types of Lines and free-hand drawing, Drawing of Geometrical Figures, Dimensioning (Position, Sizing etc.), Concepts of dimensional Tolerances, Concept and Reading of an Engineering Drawing, Symbolic Representation (Surface Roughness, Cylindricity, Concentricity etc.).

Syllabus For Machinist Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Drill, Tap, Die: Types & application, Determination of tap drill size, Basic terminology related to screw thread.
• Reamer: Material, types (Hand and machine reamer), parts and their uses, determining hole size for reaming, Reaming procedure.
• Measuring Instruments: Vernier height gauge, Vernier calliper, Outside micrometre, Reading of Vernier Micrometre, Inside Micrometer, Bore Dial Gauge, Telescopic gauge, Gauges.
• Drilling machines: Types & their application, construction of Pillar & Radial drilling machine, Countersunk, counter bore and spot facing-tools and nomenclature, Cutting Speed, feed, depth of cut and Drilling time calculations.
• Interchangeability: Necessity in Engg., field, Limit- Definition, types, terminology of limits and fits.
• Slotter: Classification, principle, construction, Safety precaution, Indexing process, Driving mechanisms, quick return motion, Job holding devices, Slotting tools, Spline.
• Coolant & lubricant: Introduction, types, properties, application & applying methods.
• Milling Machine: Introduction, types, parts, construction and specification, Driving and feed mechanism, Different types of milling cutters & their use, Cutter nomenclature, Different milling operations, Up and down milling, Different types of milling attachments.
• Jigs and Fixtures: Introduction, principle, types, use, advantages & disadvantages.
• Properties of metals: General idea of physical, mechanical properties of metals.
• Heat Treatment: Introduction, necessity, types, Purposes, different methods of Heat Treatment, Heat Treatment of Plain Carbon Steel.
• Indexing: Introduction & types, Indexing head, Calculation for direct and simple indexing.
• Grinding: Introduction, grinding wheel- abrasive, types, bond, grade, grid, structure, standard marking system, selection of the grinding wheel, Dressing, Glazing and Loading of wheels, Roughness values.
• Surface Grinder: Types, Parts, construction, use, methods of surface grinding.
• Cylindrical grinder: Introduction, parts, construction, types, specification, safety, different methods of cylindrical grinding, Cutting speed, feed, depth of cut, machining time calculation, Wet grinding and dry grinding, grinding defects and remedies.
• Tool & cutter grinder: Introduction, parts, construction, use and specification, different types of tool rest & their application, Various methods of cutter grinding, Various cutter grinding attachments.
• Geometrical tolerances: Definition, symbol and their application.
• Gear: Introduction, use and type, Elements of a spur gear, Gear tooth of each forms types, merits and demerits of each.
• Vertical Milling Machine: Its parts, Method of boring, Difference between Horizontal and Vertical Milling Machine.
• VMC.CNC technology basics: Comparison between CNC VMC and conventional milling machines, Concepts of positioning accuracy, repeatability, CNC VMC machine elements and their functions, Machining operations and the tool paths, Co-ordinate geometry& polar coordinate points, machine axis, axes convention, work zero, machine zero.
• Programming: Absolute and incremental programming, Programming - sequence, formats, different codes and words, ISO G and M codes for CNC milling, Canned cycles, Subprograms.
• Writing part programs: As per drawing & check using CNC program verification software, Process planning, work holding, tool and cutting parameters selection, Program checking.
• Work offset, tool length offset, tool radius offset.
• Machine operation modes: Jog, MDI, MPG, Edit, Memory.
• Collisions: Due to program errors, effects of collisions, Costs associated with collisions, Recovering from collisions.
• Tool wear: Necessity for wear offsets change, entering wear offsets.
• Program transfer: Through electronic media.
• Productivity concepts: Cycle time, machine down time, causes of down time, Effect of down time on profitability, reducing down time, Machine hour rate, components of machine hour rate, Calculation of machining cost, cost of down time.
• Cutter radius compensation (CRC).
• Cutting tool materials: Application of various materials, Cutting tool geometry, Insert holding methods, Insert cutting edge geometry, Cutting parameters, Tool wear, tool life.
• Calculations for cutting helical slab/ cylindrical cutter, End Mill cutter.
• Bevel gear: Elements, types, application, calculation for cutting bevel gear.
• Cam: Types, elements & application, Plate cam manufacturing & calculations, Drum cam.
• Worm wheel: Application, elements & calculation, Worm-calculation.
• Types of Keys and their uses.
• Variation: Types and causes. Testing of Gear and error.

Engineering Drawing & Workshop Calculation (30 Marks)

• Engineering Drawing: Introduction to Engineering Drawing and Drawing Instruments, Conventions, Sizes and layout of drawing sheets, Title Block, Drawing Instrument, Lines- Types and applications, Free hand drawing of Geometrical figures and blocks with dimension, Free hand drawing of hand tools and measuring tools, Drawing of Geometrical figures, Lettering & Numbering, Dimensioning, Symbolic representation, Concept and reading of Drawing, Reading of Job drawing of related trades.
• Workshop Calculation: Unit, Fractions, Classification of unit system, Fundamental and Derived units, Measurement units and conversion, Fractions - Addition, subtraction, multiplication & division, Decimal fractions, Solving problems by using calculator, Square root, Ratio and Proportions, Percentage, Mass, Weight, Volume and Density, Speed and Velocity, Work, Power and Energy, Heat & Temperature and Pressure, Basic Electricity, Trigonometry.

Syllabus For Turner Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• General Safety precautions: In Workshop, Use of PPEs and Housekeeping practices.
• Basics Machine shop Tools: Hand Tools, Marking Tools, Fitting Tools, Surface plates, V-Block etc.
• Measuring Instruments: Vernier Calliper, Micrometer, Height Gauge, Steel Rule, Thread gauge, Plug Gauges, Slip gauges, Dial Gauges etc.
• Geometry of Single point Cutting tool: Various types of single point cutting tools, Cutting Tool Materials/ Grades, Cutting Inserts, Tool holders etc.
• Parts of Lathe Machine: Lathe Machine Specifications, various types of Lathe Machines and their applications.
• Setting of Jobs on Lathe: Lathe machine Attachments & Accessories.
• Basics of Turning operations: Cutting Speed, Feed & Depth of Cut, setting of different Speed, Depth of Cut and Feed according to Job Materials and Operations.
• Various types of Lathe machine operations: Centering, Facing, Plain turning, Taper cutting, Threading & types of threads (Screw thread, Square thread, Acme thread, Buttress Thread etc.), Knurling, Trepanning, Grooving, parting off, Beveling, Drilling, Boring, Shouldering etc.
• Application of Coolant & Lubricants: And their Benefits.
• Introduction to CNC Machines: CNC Part programing, various CNC controls etc.

Engineering Drawing & Workshop Calculation (30 Marks)

• Workshop Calculations: Units, Fractions, Square root, Ratio and Promotions, Percentage, Material Science, Mass, Weight, Volume and Density, Work, Power and Energy, Mensuration, Levers and Simple Machines, Trigonometry.
• Engineering Drawing: Drawing Conventions, Sizes and Scales of a drawing, Drawings Instruments (2D & 3D Tools), Projection Systems (Orthographic & Isometric views), Sectional Views and Assembly Views, Various types of Lines and Free hand drawing, Drawing of Geometrical Figures, Dimensioning (Position, Sizing etc.), Concepts of dimensional Tolerances, Concept and Reading of an Engineering Drawing, Symbolic Representation (Surface Roughness, Cylindricity, Concentricity etc.).

Syllabus For Welder Trade (70 Marks Theory + 30 Marks Engg. Drawing & Workshop Calculation)

Theory (70 Marks)

• Importance of trade Training: Elementary First Aid, Industry Safety, Precautions in Shielded Metal Arc, Oxy-Acetylene and Cutting.
• Definition of: Arc and Gas Equipments, tools and accessories, Various Processes and its applications, Arc and Gas terms and definitions.
• Types of joints and its applications.
• Preparation and fit up for different thickness.
• Surface Cleaning.
• Basic electricity: Applicable to arc and related electrical terms & definitions, Heat and temperature and its terms related to principle of arc and characteristics of arc.
• Common gases: Used for & cutting, flame temperatures and uses, Types of oxy-acetylene flames and uses, Oxy-Acetylene Cutting Equipment principle, parameters and application.
• Arc power sources: Transformer, Rectifier and Inverter type machines and its care & maintenance, Advantages and disadvantages of A.C. and D.C. machines.
• Positions as per EN & ASME: Flat, horizontal, vertical and over head position, Weld slope and rotation, symbols as per BIS & AWS.
• Arc length: Types – effects of arc length, Polarity: Types and applications, Weld quality inspection, common mistakes and appearance of good and defective welds, Weld gauges & its uses.
• Calcium carbide: Uses and hazard, Acetylene gas properties and flash back arrestor.
• Oxygen gas: Its properties, uses in, Charging process of oxygen and acetylene gases, Oxygen and Dissolved Acetylene gas cylinders and Color coding, Uses of single and double stage Gas regulators.
• Oxy acetylene gas Systems: Low pressure and High pressure, Difference between gas blow pipe (LP & HP) and gas cutting blow pipe, Gas techniques- Rightward and Leftward techniques.
• Arc blow: Causes and methods of controlling, Distortion in arc & gas and methods employed to minimize distortion, Arc defects, causes and Remedies.
• Specification of pipes: Various types of pipe joints, pipe all positions, and procedure, Difference between pipe and Plate.
• Pipe development: For Elbow joint, T joint, Y joint and branch joint, Brief use of Manifold system.
• Gas filler rods: Specifications and sizes, Gas fluxes – types and functions, Gas Brazing & Soldering: principles, types fluxes & uses, Gas defects, causes and remedies.
• Electrode: Types, functions of flux, coating factor, size specifications of electrode, Effects of moisture pick up, Storage and baking of electrodes.
• Weldability of metals: Importance of pre heating, post heating and maintenance of inter pass temperature.
• Induction, brazing of copper tubes.
• Brass: Types properties and methods.
• Copper: Types properties and methods.
• Brazing cutting tools.
• Types of Inspection methods: Classification of destructive and NDT methods, economics and Cost estimation.
• Safety precautions: In Gas Metal Arc and Gas Tungsten Arc, Introduction to GMAW - equipment – accessories, Various other names of the process. (MIG/MAG/CO2).
• Advantages of GMAW over SMAW: Limitations and applications- Process variables of GMAW.
• Wire feed system: Types – care and maintenance.- wires used in GMAW, standard diameter and codification as per AWS.
• Shielding gases: Used in GMAW and its applications.- Flux cored arc – description, advantage, wires, coding as per AWS.
• Edge preparation: Of various thicknesses of metals for GMAW. - GMAW defects, causes and remedies.
• Heat input: And techniques of controlling heat input during, Heat distribution and effect of faster cooling.
• Pre-heating & Post Weld Heat Treatment: Use of temperature indicating crayons.
• Submerged arc process: Principles, equipment, advantages and limitations.
• Thermite process: Types, principles, equipments, Thermite mixture types and applications. - Use of backing strips and backing bars.
• GTAW process: Brief description, Difference between AC and DC, equipments, polarities and applications, Power sources for GTAW - AC & DC.
• Tungsten Electrodes: Types & uses, sizes and preparation, GTAW Torches- types, parts and their functions, GTAW filler rods and selection criteria.
• Edge preparation and fit up.
• GTAW parameters: For of different thickness of metals.
• Argon / Helium gas: Properties – uses. GTAW Defects causes and remedy.
• Plasma Arc (PAW) cutting (PAC) process: Equipments and principles of operation, Types of Plasma arc, advantages and applications.
• Reading of assembly drawing: Procedure specification (WPS) and Procedure Qualification Record (PQR).

Engineering Drawing & Workshop Calculation (30 Marks)

• Engineering Drawing: Engineering Drawing and Drawing Instruments, Conventions, Sizes and layout of drawing sheets, Title Block, Drawing Instrument, Free hand drawing of Geometrical figures and blocks with dimension, Free hand drawing of hand tools and measuring tools, Lines - Types and applications, Geometrical figures, Lettering & Numbering, Reading of dimension and Dimensioning Practice, Reading of fabrication drawing, sectional view of different types of Joints, Sectional view of different pipe joints, Symbolic representation.
• Workshop Calculation: Unit, Fractions, Square root, Ratio and Proportions, Percentage, Algebra, Mensuration (Area and perimeter of square, rectangle, parallelogram, Triangles), Profit and loss, Simple and compound interest, Estimation and Costing, Material Science, Heat & Temperature and Pressure, Trigonometry.