NDSS Academy

Workshop Calculation & Science - Year 2 (ITI Draughtsman Group)

Mensuration of areas and volumes, centre of gravity, moment of inertia, simple stresses, beams, levers and estimation calculations for draughtsman trades.

12 MonthsDuration 6Chapters30Topics
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Syllabus · पाठ्यक्रम

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01Unit 1: Mensuration of Areas and Volumes 5 topics
  1. Areas of trapezium and composite figures
  2. Irregular areas: mid-ordinate, trapezoidal and Simpson's rules
  3. Volume of frustum of cone and pyramid
  4. Prismoidal formula and earthwork volume
  5. Surface area of composite solids
02Unit 2: Centre of Gravity 4 topics
  1. Centre of gravity and centroid
  2. Centroid of triangle, circle, semicircle and quadrant
  3. Centroid of T, L, I and channel sections
  4. Centroid of figures with cut-outs
03Unit 3: Moment of Inertia 5 topics
  1. Moment of inertia of an area
  2. MI of rectangle, triangle and circle
  3. Parallel and perpendicular axis theorems
  4. MI of composite sections
  5. Section modulus and radius of gyration
04Unit 4: Simple Stresses and Strains 5 topics
  1. Tensile, compressive and shear stress
  2. Linear and lateral strain, Poisson's ratio
  3. Hooke's law and Young's modulus
  4. Stress-strain curve, ultimate and working stress
  5. Factor of safety
05Unit 5: Beams, Shear Force and Bending Moment 6 topics
  1. Types of beams, supports and loads
  2. Support reactions
  3. Shear force and bending moment
  4. SF and BM diagrams of cantilevers
  5. SF and BM diagrams of simply supported beams
  6. Point of contraflexure (introduction)
06Unit 6: Levers, Simple Machines and Estimation 5 topics
  1. Classes of levers and principle of moments
  2. MA, VR and efficiency
  3. Screw jack and pulley systems
  4. Estimation of bricks, cement, sand and steel
  5. Cost estimation of simple jobs

About

You will be able to

  • Calculate areas of irregular figures and volumes of solids and earthwork
  • Find the centre of gravity of plane and composite figures
  • Calculate moment of inertia, section modulus and radius of gyration of simple sections
  • Calculate stress, strain, elongation and working stress with factor of safety
  • Find reactions and draw shear force and bending moment diagrams of simple beams
  • Solve lever and simple machine problems and estimate material quantities

Who it is for

  • ITI Draughtsman Civil and Draughtsman Mechanical trainees - Year 2 (NCVT / DGT CTS)
  • Trainees preparing for the Workshop Calculation & Science paper of the AITT

What you need

  • Workshop Calculation & Science Year 1
  • A basic scientific calculator

Questions

Which syllabus does this course follow?

The NCVT / DGT CTS (NSQF) Workshop Calculation & Science syllabus for draughtsman trades, Year 2. The centre follows the student's own ITI syllabus where it differs.

Why do draughtsmen need beam and stress calculations?

They help in reading structural and machine drawings and in checking sizes, quantities and loads shown on them.

Are solved examples given?

Yes, every unit is taught with solved numericals followed by practice sheets.

Download the syllabus (PDF)

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