EEE | 1st Year-1th Sem | EEE Drawing Syllabus

Electrical and Electronics Engineering Drawing

Units

Section A

1. Drawing Instruments and their use
2. Lettering techniques
3. Introduction to Scales
4. Convention Presentations
5. Principles of projections point
6. Orthographic projection of simple orthographic pictures
7. Free Hand Sketching

Section B

1. Electrical & Electronics Symbols
2. Active Devices & Telephone Components
3. Wiring Diagram
4. Rough Sketch of Circuit Diagram
5. Conversion of Size (A1, A2, A3 & A4)
6. Use of Various Graphs
7. PCB Layout

Contents

Note: Latest Indian Standards Code of Practice to be followed

Section "A"

Drawing, instruments and their uses: 1 Sheet

1. Introduction to various drawing, instruments.
2. Correct use and care of Instruments.
3. Sizes of drawing sheets and their layouts.

Lettering Techniques: 2 Sheet

1. Printing of vertical and inclined, normal single stroke capital letters.
2. Printing of vertical and inclined normal Single stroke numbers. Mini Drafter and their use.

Introduction to Scales 2 Sheet

Necessity and use, RF Types of scales used in general engineering drawing. plane and diagonal scales.

Conventional Presentation: 1 Sheet

Thread (Internal and External), Welding joint, types of lines, conventional representation of materials, Conventional representation of machine parts.

Principles of projection: 1 Sheet

1. Orthographic, Pictorial and perspective. Concept of horizontal and vertical planes. Difference between I and III angle projections. Dimensioning techniques.
2. Projections of points 1 Sheet

Orthographic projections of simple: 2 Sheet

Given orthographic pictures Concept of sectioning Cases involving cutting plane parallel to one of the reference planes and prependicular to the others. Cases involving cutting plane perpendicular to the reference planes and inclined to the other plane, true shape of the section.

Free hand sketching: 1 Sheet

Isomeric views of simple job like carpentry joints, pipe & rod cutting section, Anvil, Swange Block, Vernier calipers, Try square, step pulley, Flange coupling, etc.

Practice on AUTOCAD: 2 Sheet

Concept of AUTOCAD, Tool bars in AUTOCAD, Coordinate System, Snap, Grid and Other mode Drawing Command - point, Line, Arc, Circle, Ellipse Editing Commands - Scale Erase, Copy, Stretch, Lengthen and Explode. Dimensioning and placing text in drawing area. Sectioning and heating. Inquiry for different parameters of drawing.

Section "B"

Electrical & Electronics Symbol:

Draw the standard symbols of the following: (Different pages of ISI standard ISI 2032 may be referred)

• Resistors Capacitors: Fixed, present, variable, electrolytic and ganged types.
• Inductors: Fixed, tapped and variable types, RF & AF chokes, Air cored, Solid core & laminated cored.
• Transformers: Step-up, Step-down. AF & RF types, Auto-transformer, IF transformer.
• Electrical Symbols i.e., Ammeter, Voltmeter, Watt meter, Energy meter,Frequency meter, Thermistor, Thermo-couple.
• Draw standard symbols of NOT, AND, OR, NAND, NOR, XOR, Expandable & Tri state gates, Op, Amp, IC, Flip-flops (Combination of 2,3,4 input gates should be drawn). Antenna, Chassis, Earth, Loudspeaker, Microphone, Fuse Indicating lamp, Coaxial cable, Switches-double pole single throw (DPST), Double pole throw (DPT) and Rotary types, terminals and connecting of conductors.

Active Devices and Telephone Component:

Semiconductor: Rectifier diode, Zener diode, Varacter diode, Tunnel diode, Photo, Light emitting diode (LED), Bipolar transistor, junction field effect transistor (JFET), Mosfet, Photo transistor, Uni junction field effect transistor (JFET), Disc, Triacs outlines (with their types number e.g. TO3, TO5, TO18, T039, TO65, etc. of the different types of semiconductor diodes, Transistors Scrs, Diacs, Triacs and ICs (along with indicators for pin identification etc.) Telephone components: Telephones Instrument / Components: Transmitter, Receiver, Filters & Hybrid transformer.

Wiring Diagrams:

Connection wiring diagrams:

1. Point to point pictorial.
2. Highway or trunk line, Simple wiring diagram i.e. Staircase wiring, wiring diagram of single bulb control, one bulb with one fan and one socket control, tube light connection diagram.
3. Base line or airline. Exercise on reading & interpreting of wiring diagrams. Graphical representation of Data: Use of various graph paper and preparation of diagram from given data . Bar charts, pie graph, pictorial graph.

Rough Sketch of Circuit Diagram:

Draw the following circuit diagram: (With the help of rough sketch / clues given).

1. Circuit diagram of a Wein's bridge oscillator.
2. Circuit diagram of a Battery eliminator.
3. Circuit of Emergency light.
4. Circuit diagram of Voltage stabilizes.
5. Circuit diagram of Fan regulator.

Conversion of Size (A1, A2, A3, and A4):

1. Given the block diagram of a radio receiver on A-4 size, enlarge the same to A-2 size.
2. Block diagram of Electronic Multi Meter in A1 -A3 -A4.
3. Block diagram of a TV receiver in A-1 / A-2 size, reduce it to A-3 size.
4. Convert a rough block diagram sketch on A-4 size to a finished block diagram on A-2 size.

PCB Layout:

PCB layout of a single electronic circuit on a graph sheet keeping in view the actual size of the components.

Note:

The drawing should include dimension with tolerance where ever necessary, material list according to I.S. code. 25% of the drawing sheet should be drawn in first angle projection and rest 75% drawing sheet should be in third angle figure.