BASIC TECH JSS1 SECOND TERM LESSON NOTE
ALL LESSON NOTES | QUESTIONS AND ANSWERS | JOBS | TRAININGS FOR TEACHERS | WORKSHEETS BASIC TECH JSS1 SECOND TERM LESSON NOTE DRAWING INSTRUMENTS AND MATERIALS CONTENT 1. Definition of Technical Drawing 2. Drawing Instrument and Materials Definition of Technical Drawing Technical drawing is a universal language used for communication among technical people. A good and accurate drawing can only be made through constant practice with the aid of drawing instruments and materials. Technical drawing can also be defined as a language of communication making use of lines, curves, symbols and conventions. Drawing Instrument and Materials Drawing instruments and materials for technical drawing are: 1. Drawing board 2. Tee square 3. Sets squares 4. Protractor 5. Compasses 6. Dividers 7. Drawing paper clips 8. Scale rules 9. French curves 10. Metric rules 11. Drawing paper 12. Drawing pencils 13. Eraser 14. Sharpener or bl...