syllabi 10+1 voc streams - Government Senior Secondary School ...

104
SEMESTER-II
Time: 2 hrs THEORY Marks: 30
Int. Ass./CCE: 15
PLANE GEOMETRY Total Marks: 45
6. Section of Solids :
Need for sectioning and sectional views. Horizontal Trace and Vertical Trace of cutting planes.
Procedure of drawing sectional solids (cube, prism, pyramid, cylinder, cone) when solids rest on
base. Procedure of drawing sectional views of solids when axis is inclined to one plane and
parallel to other.
7. Orthographic Projections :
SOLID GEOMETRY
Meaning of H.P., Quardrants, I angle and III angle projection methods, Projections (Front, Top
and Side of Simle block.
8. Symbols and Conventions :
Necessity of symbols & conventions , conventions for
(a) Bricks work, R.C.C., stone , wood, earth, rock, plaster, glass, fibre board, doors,
windows, fencing, building, roads, railway lines, bridge canal, district, state and
international boundary, Industry, School.
(b) Valve, pumps, screw theads, springs, knurling, holes on linear pitch circular pitch,
gears, bearings, glass, gun metal, cast iron, mild steel, copper, aluminium, lead, zinc,
white metal, brass, bronze, asbestos, rubber.
(c) Buld, tube, fuse, earthing, plug, socket, switch, Main switch, cell, Battery, conductor,
resistance, capacitance, inductance, ammeter, voltmeter, bell, buzzer, laud specker,
fans, regulator, field poles, armature.
9. Fasteners
(a) Meaning / definations of pitch, crest, root, depth of threads, minor diameter & major
diameter of screw thread.
(b) Freehand sketches of bolts, nuts, washers.
(c) Freehand sketches of riveted joints, butt and lap joints.
(d) Freehand sketches of studs, set screws and forms of threads like British Association ,
British standard, Whitworth, square, Butteres, Unified, Sellers.
(e) Freehand Sketches f locking nuts.
(f) Freehand sketches of foundation bolts like eya bolt, Lewis, Rag, Cotter.
(g) Freehand sketches of key like square, rectangular, sunk, flat & round, saddle Gib
headed key.
10. Sectionalo orthographics projections :
Need for sectional views, procedure for drawing section views from the given orthographics
projections of block.
11. Development of surface of solids :
Importance of development, list out the applications where developed surfaces are used.
Differentiate between parallel line and radial line development, Selection of proper methods of
development, procedure for drawing the development of simple and truncated solids.
Development of the surface of cube, prism, pyramid, cone, cylinder, and trustrum of pyramid
and cones.