India · CBSE Learning Outcomes
Class 12 Engineering Graphics.
This curriculum for Class 12 Engineering Graphics develops students' spatial visualization and technical drawing skills in accordance with the CBSE framework. It covers isometric projections, machine parts, and assembly drawings to prepare students for engineering disciplines.
01Isometric Projections of Solids
Students learn to construct isometric scales and draw isometric projections of various geometric solids and their combinations.
Introduction to the isometric scale and its application in drawing single regular solids like prisms and pyramids.
Techniques for visualizing and drawing frustums of pyramids and cones, as well as truncated solids.
Drawing complex objects formed by placing one solid centrally over another.
02Drawing of Machine Parts
Detailed study and drafting of standard machine elements including screw threads, nuts, bolts, and rivets.
Drafting standard thread profiles such as BSW, Metric, and Square threads to scale.
Orthographic projection of hexagonal and square nuts and bolts.
Drafting plain washers, various rivet heads, and standard riveted joints.
Understanding and drawing various types of keys and cotters used in shaft connections.
03Assembly Drawing of Machine Blocks
Creating full assembly drawings from given details of individual machine parts.
Drafting the assembly of open and bushed bearings showing all internal and external features.
Assembling the components of a footstep bearing used to support vertical shafts.
Drafting the assembly of socket and spigot cotter joints and knuckle joints.
Creating assembly drawings of standard flange pipe joints.
04Disassembly Drawing and Tie-Rod Joints
Breaking down assemblies into individual components and studying specialized tie-rod joints.
Disassembling a turnbuckle and drawing its individual components like the body and threaded rods.
Drafting the disassembled parts of a gib and cotter joint used for square rods.
Creating detailed drawings of the sleeve, cotters, and shaft ends from an assembled view.