PSSSB Junior Draftsman Syllabus 2022 And Exam Pattern

Layoutof drawing.Lines, Lettering, Dimensioning.

Knowledge of different types of scale. Principle of R.F.

Different types of projection views: Orthographic, Isometric, Oblique
and Perspective.

Timber (Types, Structure, disease &defects,characteristic, seasoning, preservation and utility) Alternative material to Timber (Plywood, Block board, Particle board, Fireproof reinforced plastic(FRP), Medium density fireboard (MDF)etc.), Tar, bitumen,asphalt

Protective materials:- Paints, Varnishes, Metal and Plastics

Foundation:-Purpose of foundation, Causes of failure of foundation, Bearing capacity of soils, Dead and live loads, Examination of ground, Types of foundation, Drawing of footing foundation setting out of building on ground excavation, Simple machine foundation

Types of shoring, scaffolding, Underpinning and Timbering

Carpentry joints, Doors, Windows, Ventilators

Floors, Flooring, Stairs, lift and Escalator

Roofs & Roof coverings, Truss, Shell, Dome, Roof & coverings

House drainage of building:-Introduction, Terms used in PHE, Systems of sanitation, System of house drainage, plumbing, sanitary fittings, etc, Types of sewer appurtenance, Systems of plumbing, Manholes & Septic tank, Water treatment plant, Sewerage treatment plant

Levelling:-Auto level , dumpy Level, Tilting Level, Principle of levelling Types,component / part and function, Datum Focussing&parallax ,Deduction of levels / Reduced Level, Types of leveling, Application to chain and Levelling Instrument to Building construction.

Contouring:-Definition, Characteristics,Methods, Interpolation of Contour, Contour gradient , Uses of Contour plan and Map.

Introduction to Theodolite survey

Types of building, planning & designing of residential, public and commercial building

Parks &play ground-Types of recreation, landscaping etc.

Prefabricated Structure: Method of construction and assembling

Concepts of design of earthquake resisting buildings- requirements resistance, safety, flexible building elements, special requirements, base isolation techniques.

Steel structures:-Structural fasteners , Joints, Tension & compression member, Classification,fabrication, Construction details.

Basics of Bridges & Culvert.

Basic terms used in irrigation, Hydrology like duty, delta, base period, intensity of irrigation, Hydrograph, peak flow, run off, catchment area, CCA, corps like, rabi, kharif etc.,

Storage, diversion head, work -characteristics and types.

Reservoir –types of reservoirs, i.e., single purpose and multi- purpose, area, capacity and curves of reservoir.

Dams, weir & barrages- types purposes.

Hydro electric project like Forebay ,Penstock, Turbines, Power house, etc.

Canals- classification and distribution system, canal structures.

Types of cross drainage works like Aqueduct, Super passage, Syphon, Level crossing, inlet and outlet, etc.

• Concepts of resistance, inductance, capacitance, and various factors affecting them.
• Concepts of current, voltage, power, energy and their units.
• Network elements: ideal voltage and current sources, dependent sources, R, L, C, M elements; Network solution methods: KCL, KVL, Node and Mesh analysis;
• Network Theorems: Thevenin’s, Norton’s, Superposition and Maximum Power Transfer theorem;
• Magnetic Circuit – Concepts of flux, mmf, reluctance, Different kinds of magnetic materials, Magnetic calculations for conductors of different configurations e.g. straight, circular, solenoidal, etc.
• Electromagnetic induction, self and mutual induction.
• Transient response of dc and ac networks, sinusoidal steady-state analysis, resonance, two port networks, balanced three phase circuits, star-delta transformation, complex power and power factor in ac circuits.
• Coulomb’s Law, Electric Field Intensity, Electric Flux Density, Gauss’s Law, Divergence, Electric field and potential due to point, line, plane and spherical charge distributions, Effect of dielectric medium, Capacitance of simple configurations, Biot‐Savart’s law, Ampere’s law, Curl, Faraday’s law, Lorentz force, Inductance, Magnetomotive force, Reluctance, Magnetic circuits, Self and Mutual inductance of simple configurations.

• Instantaneous, peak, R.M.S. and average values of alternating waves.
• Representation of sinusoidal waveform, simple series and parallel AC Circuits consisting of R.L. and C, Resonance, Tank Circuit.
• Poly Phase system – star and delta connection, 3 phase power, DC and sinusoidal response of R-Land R-C circuit.

• Measurement of power (1 phase and 3 phase, both active and reactive) and energy, 2 wattmeter method of 3 phase power measurement.
• Measurement of frequency and phase angle.
• Ammeter and voltmeter (both moving oil and moving iron type), extension of range wattmeter, Multimeters, Megger, Energy meter AC Bridges.
• Use of CRO, Signal Generator, CT, PT and their uses.
• Earth Fault detection.

• Representation of continuous and discrete time signals, shifting and scaling properties, linear time invariant and causal systems, Fourier series representation of continuous and discrete time periodic signals, sampling theorem, Applications of Fourier Transform for continuous and discrete-time signals, Laplace Transform and Z transform

• Single-phase transformer: equivalent circuit, phasor diagram, open circuit and short circuit tests, regulation and efficiency;
• Three-phase transformers: connections, vector groups, parallel operation;
• Auto-transformer, Electromechanical energy conversion principles;
• DC machines: separately excited, series and shunt, motoring and generating mode of operation and their characteristics, speed control of dc motors;
• Three-phase induction machines: principle of operation, types, performance, torque-speed characteristics, no-load and blocked-rotor tests, equivalent circuit, starting and speed control;
• Operating principle of single-phase induction motors; Synchronous machines: cylindrical and salient pole machines, performance and characteristics, regulation and parallel operation of generators, starting of synchronous motors;
• Types of losses and efficiency calculations of electric machines
• Methods of braking, effect of voltage and frequency variation on
  torque speed characteristics.

• Characteristics and applications.
• Synchronous Machines – Generation of 3-phase e.m.f. armature reaction, voltage regulation, parallel operation of two alternators, synchronizing, control of active and reactive power.
•  Starting and applications of synchronous motors.

• Basic concepts of electrical power generation, ac and dc transmission concepts,
• Models and performance of transmission lines and cables,
• Series and shunt compensation, Electric field distribution and insulators,
• Distribution systems, Per‐unit quantities, Bus admittance matrix, Gauss- Seidel and Newton-Raphson load flow methods, Voltage and Frequency control, Power factor correction, Symmetrical components, Symmetrical and unsymmetrical fault analysis, Principles of over‐ current, differential, directional and distance protection;
• Circuit breakers, System stability concepts, Equal area criterion,
  Economic Load Dispatch (with and without considering transmission
  losses).

• Mathematical modeling and representation of systems,
• Feedback principle, transfer function,
• Block diagrams and Signal flow graphs,
• Transient and Steady‐state analysis of linear time-invariant systems,
• Stability analysis using Routh-Hurwitz and Nyquist criteria, Bode plots, Root loci, Lag, Lead and Lead‐Lag compensators;
• P, PI and PID controllers; State-space model, Solution of state
  equations of LTI systems, R.M.S. value, average value calculation for
  any general periodic waveform.

• Power factor improvement, various types of tariffs, types of faults,
  short circuit current for symmetrical faults.
• Switchgears – rating of circuit breakers, Principles of arc extinction by oil and air, H.R.C. Fuses, Protection against earth leakage /over current, etc. Buchholtz relay, Merz-Price system of protection of generators & transformers, protection of feeders and bus bars.
• Lightning arresters, various transmission and distribution system, comparison of conductor materials, the efficiency of different system.
• Cable – Different type of cables, cable rating and derating factor.
• Different types of power stations, Load factor, diversity factor, demand factor, cost of generation, inter-connection of power stations.

• Estimation of lighting scheme, electric installation of machines and relevant IE rules.
• Earthing practices and IE Rules.

• Illumination
• Electric heating
• Electric welding
• Electroplating
• Electric drives and motors.

• Working of various electronic devices e.g. P N Junction diodes, Transistors (NPN and PNP type) BJT and JFET.
• Simple circuits using these devices.
• Static V-I characteristics and firing/gating circuits for Thyristor, MOSFET, IGBT;
• DC to DC conversion: Buck, Boost and Buck-Boost Converters;
• Single and three-phase configuration of uncontrolled rectifiers;
• Voltage and Current commutated Thyristor based converters;
• Bidirectional ac to dc voltage source converters;
• Magnitude and Phase of line current harmonics for uncontrolled and thyristor based converters;
• Power factor and Distortion Factor of ac to dc converters;
• Single-phase and three-phase voltage and current source inverters, sinusoidal pulse width modulation.

Nomenclature, description and use of drawing instruments &various
equipment’s used in drawing office. Their care and maintenance.

Lay out and designation of a drawing sheet as per Sp -46 :2003

Recommended scale of engineeringdrawingasperSp-46:2003

Types of Lines and their application.

Folding of prints for filing Cabinets or binding as per SP: 46-2003.

Type of lettering proportion and spacing of letters and words.

Terminology – feature, functional feature, functional dimension, datum dimension, principles.

Units of dimensioning, System of dimensioning, Method of
dimensioning& common features.

Methods of obtaining orthographic view. Position of the object, selection of the views, three views of drawing. Planes and their normal projections First angle and third angle projection. Types of sectional views & their uses.Cutting plane and its representation.Selection of views for construction of orthographic drawings for clear description of the object.

Knowledge of solid section. Projection of solids like prism, cones,
pyramids and their frustums.

Methods of free hand sketching for machine parts.

Conventional signs, symbols, abbreviations & hatching for different materials.

Solution of problems to find out the true shape of surfaces when solids are cut by different cutting planes.

Definition of development, its need in industry & different method
of developing the surfaces.

Development of surfaces bounded by plane of revolution intersecting each other.

Development of an oblique cone with elliptical base etc Calculation of developed lengths of geometrical solids.

Definition of Intersection & interpenetration curve.Common method to find out the curve of interpenetration.

Principle of isometric projection and Isometric drawing. Methods of
isometric projection and dimensioning. Isometric scale. Difference between Isometric drawing & Isometric projection.

Principles of making orthographic views from isometric drawing.

Principle and types of oblique projection.

Advantage of oblique projection over isometric Projection.

Types of bolts, nuts and studs, and their proportion, uses.

Different types of locking devices. Different types of machine screws, cap screws, set screws as per specification. Different types of foundation bolts and their uses.

Description of Welded Joints and their representation (Actual and Symbolic) Indication of Welding Symbol on drawing as per SP-46.

Different types of keys(Heavy duty and Light duty) cotters, splined shaft, pins and circlips. Calculation of sizes and proportions of keys.

Pipe Joints: selection of materials as per carrying fluid and conditions. Description of different pipe joints fitted onpipe.Expansion joint, loopand other pipe fittings.

Types of rivets, their size proportion sand uses.Types of riveted joints, terms and proportions of riveted joints. Conventional representation. Relation between rivet size and thickness of plates and calculation for arrangement of rivets position.Causes of failureof riveted joint efficiency of riveted joints.

Limits, fit, tolerance. Toleranced dimensioning, geometrical tolerance. Indications of symbols for machining and surface finishes on drawing(grades and micron values)

Knowledge of design, manufacture, and operation of pressure vessels.

Maintaining sequence of operation in fitting shop and safety
precaution.
Description of parts of Lathe &its accessories. Description of different job holding devices in lathe operation. Safety precaution for lathes.Method of using precision measuring instrument such as inside & outside micrometers, depth gauges, vernier callipers, dial indicators, slip gauges, sine bars,universal bevel protractor,etc.

Brief Description of milling, shaping, slotting and planning machines.Quick return mechanism of these machines. Different clamping devices on milling operation.Different clamping devices on shaping operation.
Brief description of common equipment required for sheet metal work. Different types of joints used in sheet metal work.
Introduction to Die casting, gating system design, force calculation, defects and remedies and estimation.

Brief description of the hand tools used gas & arc welding. Different types of welded joints and necessary preparation required for these.

Safety precautions, Handtools used for molding. The description,use and care of hand tools.

Safety precaution maintained in electrician shop.

Knowledge of various parts of press tools and their function.

Knowledge of different moulding processes.

Lay out of Machine foundations.

Consideration of ergonomics (human factor)for shop layout.

Proper measurement practice in workshop. Principles of good measurement result:right measurement,right tools, right sketching,review and right procedures.

Knowledge of production drawing, name plate and bill of materials, etc.

Study of production drawing. Procedure of preparing Revision Drawing: putting revision mark, writing remarks in the table as per check list.

Electrical units and quantities.

Laws of electricity.

Introduction to Solid Works/ AutoCAD Inventor/ 3D Modeling

Knowledge of different pipe materials and specifications of Steel, W.I. & PVC pipes.

Brief description of different types of pipe joints.Pipe threads.

Pipe fittings(threaded, welded and pressed).Specifications of pipe fittings.

Different types of valves.

Gear drive- Different types of gears. Cast gears and machined gears.

Knowledge of profile of gears etc.

Use of Cams in industry. Types of cam,kinds of motion in cam,displacement diagrams.Terms used in cam.Types of follower.

Knowledge of engine mechanism.

Transmission of motion from reciprocating to circular through eccentric,crank and connecting rod.

Couplings, necessity of coupling, classification of couplings.Uses and proportion of different types of couplings. Materials used for couplings.

Knowledge of bearing to reduce friction, types of bearing, frictional and anti-frictional bearings.Material used for frictional bearings. Properties of frictional bearing (sliding bearing) materials. Parts of anti-frictional bearings (ball, roller, thrust ball, needle & taper roller). Materials and proportion of parts.Difference between frictional and anti-frictional bearings. Advantages of anti-frictional bearings.

Gears and gear drives- uses, types, nomenclature and tooth profiles.

Working principle of valves and their description.

Knowledge of simple stationary fire tube boiler, boiler mountings. Function and purpose of blow offcock.

Brief description of internal combustion engines, such as cylinder block piston, carburettor spark plug, camshaft, crank shaft, injector fuel pump etc. Knowledge of fuel injection system in petrol and diesel engine.

Description of different parts of petrol engine.

Knowledge of typical pneumatic system, FRLorair service unit and pneumaticactuator.

Different types of turbines, their classification, characteristic curves etc

Different types of pump systems. Characteristics of a pump system: pressure, friction and flow. Energy and head in pump systems.

Coding, Decoding