Page 19 - Fitter 1st Year - TT - Hindi
P. 19

80.File fit- combined, open angular and  Method of expressing tolerance as
                                                sliding sides. (08 hrs.)          per BIS Fits: Definition, types,
                                                                                  description of each with sketch.
                                             81.File internal angles 30minutes    Vernier height gauge: material
                                                accuracy open, angular fit. (12 hrs.)  construction, parts, graduations
                                                                                  (English & Metric) uses, care and
                                                                                  maintenance.  (04 hrs.)
                                             82.Make sliding fit with angles other than  Pig Iron: types of pig Iron, properties
                                                90o (21 hrs.)                     and uses.
                                                                                  Cast Iron: types, properties and
                                                                                  usesWroughtiron:- properties and
                                                                                  uses.
                                                                                  Steel: plain carbon steels, types,
                                                                                  properties and uses.
                                                                                  Non-ferrous metals (copper,
                                                                                  aluminium, tin, lead, zinc) properties
                                                                                  and uses. (05 hrs.)
                                             83.Scrap on flat surfaces, curved surfaces  Simple scraper- flat, half round,
                                                and parallel surfaces and test. (04 hrs.)  triangular and hook scraper and
                                                                                   their uses.  Blue matching of
                                             84.Make & assemble, sliding flats, plain  scraped surfaces (flat and curved
                                                surfaces. (12 hrs.)
                                                                                   bearing surfaces). Testing scraped
                                             85.Check for blue math of bearing     surfaces: ordinary surfaces without
                                                surfaces- both flat and curved surfaces  a master plate. (04 hrs.)
                                                by wit worth method. (5 hrs.)83.
                                                Scrap surfaces- both flat and curved
                                                surfaces by wit worth method. (5 hrs.)

                                             86.File and fit combined radius and angular Vernier micrometer, material, parts,
                                                surface (accuracy ± 0.5 mm), angular graduation, use, care and
                                                and radius fit. (15 hrs.)         maintenance. Calibration of
                                                                                  measuring instruments.
                                             87.Locate accurate holes & make accurate
                                                hole for stud fit. (2 hrs.)       Introduction to mechanical fasteners
                                             88.Fasten mechanical components / sub-  and its uses.
                                                assemblies together using screws, bolts Screw  thread  micrometer:
                                                and collars using hand tools. (5 hrs.)  Construction, graduation and use.
                                                                                  (05 hrs.)
                                             89.Make sliding fits assembly with parallel Dial test indicator, construction,
                                                and angular mating surface. parts, material, graduation, Method
                                                (± 0.04 mm) (21 hrs.)             of use, care and maintenance.
                                                                                  Digital dial indicator. Comparators-
                                                                                  measurement of quality in the
                                                                                  cylinder bores.  (05 hrs.)

             Professional  Produce           90.Lathe operations-                 Safely precautions to be observed
             Skill 95 Hrs;  components       91.True job on four jaw chuck using knife  while working on a lathe, Lathe
                           involving different                                    specifications, and constructional
             Professional  operations on lathe  tool. (5 hrs.)                    features. Lathe main parts
             Knowledge     observing standard  92.Face both the ends for holding between descriptions- bed, head stock,
             15 Hrs
                           procedure and        centres. (06 hrs.)                carriage, tail stock, feeding and thread
                           check for accuracy.  93.Using roughing tool parallel turn ± 0.1  cutting mechanisms. Holding of job
                           [Different           mm. (06 hrs.)                     between centres, works with catch
                           Operations     -                                       plate, dog, simple description of a
                           facing,    plain  94.Measure the diameter using outside facing and roughing tool and their
                           turning,    step     caliper and steel rule.(1 hr.)    applications. (04 hrs.)
                           turning, parting,
                           chamfering,

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