Importance Of Graphic Language – Need For Correct Drawings – Classification Of Drawings – Machine Drawing – Production Drawing – Part Drawing – Assembly Drawing – Introduction – Drawing Sheet – Sheet Sizes – Designation Of Sizes – Title Block – Borders And Frames – Centring Marks – Metric Reference Graduation – Grid Reference System (Zoning) – Trimming Marks – Scales – Designation – Recommended Scales – Scale Specification – Lines – Thickness Of Lines – Order Of Priority Of Coinciding Lines – Termination Of Leader Lines – Lettering – Dimensions – Xii Machine Drawing – Sections – Hatching Of Sections – Cutting Planes – Revolved Or Removed Section – Half Section – Local Section – Arrangement Of Successive Sections – Conventional Representation – Materials – Machine Components – Dimensioning – General Principles – Method Of Execution .
