Sections of Solids :Sections of Pyramids, Prisms, Cubes, Tetrahedrons, Cones and Cylindersresting only on their bases (No problems on, axis inclinations, spheres and hollow solids), Trueshape of section. (4 Hours)
Orthographic views :Conversion of pictorial views into orthographic projections of simplemachine partswith or without section. (Bureau of Indian Standards conventions are to befollowed for the drawings), Hidden line conventions, Precedence of lines. (4 Hours)
Thread forms :Thread terminology, sectional views of threads. ISO Metric (Internal &External), BSW (Internal and External), square, Acme and Sellers thread, American Standardthread.
Fasteners :Hexagonal headed bolt and nut with washer (assembly), square headed bolt and nutwith washer (assemly) simple assembly using stud bolts with nut and lock nut. Flanged nut,slotted nut, taper and split pin for locking, counter sunk head screw, grub screw, Allen screw.
Keys and Joints: Parallel, Taper, Feather Key, Gibhead key and Woodruff keyRiveted joints:Single and double riveted lap joints, Butt joints with single/double cover straps(Chain and zigzag using snap head riveters).
Joints:Cotter joint (socket and spigot), Knuckle joint (pin joint) for two rods.
Couplings : Split muff coupling, Protected type flange coupling, Pin (bush) type flexiblecoupling, Oldham’s coupling and Universal coupling (Hook’s Joint).
Limits, Fits and Tolerances : Introduction, Fundamental tolerances, Deviations, Methods ofplacing limit dimensions, Types of fits with symbols and applications, Geometrical tolerances ondrawings, Standards followed in industry. (3 Hours)
Assembly Drawings: (Part drawings shall be given)
1. Plummer block (Pedestal Bearing)
2. Rams Bottom Safety Valve
3. I.C. Engine connecting rod
4. Screw jack (Bottle type)
5. Tailstock of lathe
6. Machine vice
7. Lathe square tool post
(17 Hours)