Table Of Content

18, Aus 03 GRAPHIC COMMUNICATIONS 4 TECHNICAL DRAWING COURSE FOR GENERAL EDUCATION PART A GRAPHIC COMMUNICATIONS A TECHNICAL ORAWING COURSE FOR GENERAL EDUCATION PART A “A PICTURE 1S WORTH HORE YAH A THOUSANO WORDS” {Old Chinese proverb) Preface THE SCOPE OF GRAPHIC COMMUNTCATION IS MUCH WIDER THAN THE CONTENTS OF THE TRADITIONAL "TECHNICAL DRAWING WilICH HAS MALWLY CONCERNED WITR TRE APPLICATION IN [MOUSTRY. BRAPIITC CONMUNICATION PROVIDES USEFUL SKILLS FOR EVERY Que LIVING 24°A MODERN SOCIETY AWD ESSENTIAL SKILLS FoR AHE GRAIG COMUNECATION COURSE WILL HELP YoU 1H LEARNING TO MAKE, REAQ AND UNDERSTAND TECHNICAL DRAWINGS, DIAGRAHS, SYNGOLS ETC, TRE COURSE 1S ARRANGED 1N A SYSTENATIC ORDER AND BASED ON MODERN EDUCATIONAL CONCEPTS. THE HORXSOOK-APPROACH APPLIES "LEARIUNG BY DOING, All EFFECTIVE HESIOD IN THIS FIELD. EACH UNIT [5 PRESENTED Ue OBJECTIVES, INFORMATION, EXERCISES AND TESTS AND CONSEQUENTLY BE LABELLEO WITH GRAPHIC SYMBOLS FOR BETTER ORIENTATION. WJECTIVES STATE WHAT YOU WIL( GE ABLE PO RTA RAT TOUHAVE LeaRAT. AFTER TOU HAVE STUDIED THIS WNIT AND COMPLETED THE EXERCISES. PAGES HARKED HIT THIS SYHBOL PROWIDE HEORMATIOY WITCH YOU SHOULD STUDY CAREFULLY. ‘THIS SYNBOL INDICATES TAT THE PAGE CONTAINS EXERCISES, ‘ORANING-PROBLENS ETC. PRACTICE TS AN ESSENTIAL ELEMENT TH THE LEARNING PROCESS, ESTS ARE HARKED WITH TIS SYMBOL, USUALLY OU WILL FIND A SELF-TEST AT THE WHODLE AAD THE PIRAL TEST AT THE END OF TRE UNIT, poco THE FIRST VERSION OF THE COURSE HAS BEEN TESTED IN 20 DIFFERENT COUNTRIES AND THE RESULTS ‘OF THIS EXPERINENT HAVE AEEN INCORPORATED IM THE PRESENT VERSION, UNEsco WISHES TO THANK ALL WHO MADE USEFUL CONTR BUTTON: FOR IMPROVEHENTS. WE HOPE THAT YOU ENJOY THE COURSE ANO INCREASE YOUR JATERHATIONAL COMMUNICATION SKILLS. Contents UNIT UNIT UNIT UNIT UNIT UNIT Al A2 A3 A4 AS AG TYPES OF LINES SAUNDERS BASIC DRAWING TOOLS BASIC DRAWING TECHATQUE BASIC SKETCHING TECHNIQUE TYPES OF SKETCHES SKETCHING A KORKING DRAWING SKETCHING AN ISGHETRIG PROJECTION HULTI-Y1EN_ORAWIRGS HIDDEN FOGES TYPES OF PICTORIAL DRAWINGS ISOMETRIC DRAWING OF SIMPLE OBJECTS SHAPE, MEASUREMENT AND SIZE ELEWERTS OF DINENSEORING DIWENSIONTG RULES HEASURING HN AND INCHES SCALING HAP READING ARCHITECTURAL DRAWINGS UNIT Al BASICS OF DRAWING TYPES OF LINES NUMBERS BASIC DRAWING TOOLS BASIC DRAWING TECHNIQUE oes mT BIE) COMMUNICATIONS Eya l= 0 1 THIS COURSE 1S ADOT COMMUNICATION. coMAUNICATION HEANS TRANSHITTING IDEAS, EXPERIENCES Of MESSAGES, .OFTEH DETHECR PEOPLE, THEREFORE, YOU ARE COMMUNICATING WHEN YOU SHIPLY TALK TO SOMEONE. PEOPLE COMMUNICATE TH: MANY DIFFERENT WAYS: GY TALKING, BY WAITING AND OFTEN ALSO CY ORAHTNG! CONHUNTCATION BY ORAWING, OR PICTURES, 15 CALLED GRAPULG COMMUNFCATION. PEOPLE LIKE ENGINEERS GR TECHNICIANS OFTEN EXPLAIN [fOW A HACHINE WORKS BY MEANS OF DRANG, MICH IS A SPFGIAL TYPE DF GRAPHIC COMMUAICATION CALLED TECHNICAL DRAWING. TECHRECAL DRAWING 15 OFTEN CALLED THE UNIVERSAL LANGUAGE OF TECIIVOLOGY SINCE PEOPLE ALL OVER THE WORLD USE TECHNICAL DRAWING TO EXPLAIN. HOW TINGS WORK, TF YOU WANT TO UNDERSTAHO THIS TECHNICAL LANGUAGE THEN YOU HUST LEARN VERY WELL lIOW IT TS HRITTEN. 1H THES LESSON WE WILL Siow YOU EXAMPLES OF TECHNICAL DRAWING AND WILL TEACH YOU THE BASIC ELEMENTS OF TECHNICAL pRAHING OBJECTIVES . AFTER YOU HAVE STUDIED THIS UNST AND COMPLETED ALL. TWE EXERCISES YOU WILL BE ABLE TO: @ OW HORIZONTAL, VERTICAL AND iHELINED Limes USING A T~SQUARE AND TRIANGLES, ORAM VISIGLE LINES AND HIDOEN LIRES. WRITE LETTERS AUD NUMBERS FOR DRAWINGS. NAME TIE DASIO DRAWING TOOLS AHD SUPPLIES. SELECT THE CORRECT DEFINITIONS OF TECHRECAL DRAWING. RANE THE GASIC ELENERTS OF TECHNICAL DRAWIiG, ee0e6e GRAPHIC COMMUNICATIONS A1-02 WHAT_1S TECHMICAL_ DRAWING? TECHUICAL ORAWHG 1S A GRAPITC Heats OF COMMUNICATING WHICH 15 INTERNAT (OHACLT UNDERSTOOD. 17 1S, THEREFORE, OTTER CALLED THE UNIVERSAL LANGUAGE OF TECII- naLosY TECHNICAL DRAWING COMMUNICATES IDEAS OY MEANS OF PICTURES, DRARINGS, GRAPHS ARD SYHBOLS. WHEN A ORAWIUS 15 WADE WITH THE HELE OF DRAWING TOOLS, IT Is CALLED WECHAMICAL DRAWING, WHEN A SRAMING 1S HADES FREENARD TP Ts USUALLY CALLED A SKETCH. THE BASIC ELEMENTS OF TECHNICAL DRAWING ARE 1. LINES: 2, SYRBOLS 3. HWHBERS THE TYPES OF LINES USED ARE: 1, VESEBLE LINE 2, HIODEN LINE 3. CENTER LINE 4, DIMENSTON LINE howl bee 2 THERE ARE THREE TYPES OF TECHNICAL brawine: job 1, MULTI¥IEW {onTuocRAPdC} fi OUE OR None VieM (PROJECT Con) (IEA SYSTEMATICALLY ARRANGED. PICTORIAL o e}® ONE VIEW DRAWN AT A speciric ANGLE, AS {HA PHOTOGRAPH, SCHEMATIC - SOHPLEFIED FUNCTIONAL DRAWIAG. Graphic. COMMUNICATIONS | A | ' A 1 “ 03 WRO USES TECHNICAL ORAWTAG? ARCHITECTS Nilo CREATE BUTLOINGS ano HOUSES, ENGINEERS NO CREATE URIOGES AND AIRPLANES. OFSIGHERS WHO CREATE MACHINES AND CARS TECHNIGIANS WHO DESIGN HACATHES AND EARS. TECHNOLOGISTS NIIO DESIGN oRiDGES AND AIRPLANES, DRAFTSHEN WHO DESIGN BYILOINGS AND HACRINES, WORKERS WIID BUILD MACHINES AND CARS. GPERATORS HilD BUTLD SAEDGES AND AIRPLANES, CRAFTSHEN Wit GUILD Houses AND AUTLDINGS, REPAIQNEN WHO HAINTALN AND REPAIR HACHINES, THSTRUMENTS, CARS ETC. WHERE CAN YOU RECEIVE SPECTAL 120 TRATRING? VOCATIONAL tusreTUres TECHNICAL “INSTITUTES. POLYTEGHHICAL INSTiTUrEs ENGINEERING $uSTITUTES. Tl comics PY A1-04 worxaook THE SIBPLEST DRAWING TOOL REEDED FoR THIS WORKEOOK 1S A TRIANGLE WITH SCALE AND A RASTER or A LOCALLY HADE DRAWIHG=60ARD AdD TRIAWSLE, THE BASIC DRAING TOOLS ARE: 1, DRANING-BOARD 2, T-SQUARE 3, TRIANGLES 4, RULER [HE _DASIG DRAWING SUPPLIES ARE: 1, PeWeIL 2, ERASER 3. PAPER — 1 pL COMHIUNTENTIONS w A1=05: BASIC DRARING TECHRIOUE 1. HOLDERG roUR PENCIL 2, POSITIONING YoUR 1-SQUAHE, 3, DRAWLWG HORIZONTAL LINES: 4. DRAWING VERTICAL LIMES. 5. DRAWING INCLINED Lines.