Maharashtra HSC Workshop Science & Calculation study guide
Maharashtra HSC Workshop Science & Calculation · Work through your exam, one topic at a time.
Workshop Science & Calculation is a Vocational stream subject in the Maharashtra State Board HSC curriculum, taken by students who pair shop-floor trade practice with the theory that supports it. It suits candidates who intend to move into machining, fitting, fabrication, maintenance or a small manufacturing enterprise, and who need to read a drawing, choose a material, set a machine and cost a job with confidence. The Maharashtra HSC Workshop Science & Calculation study guide has 11 sections and about 3,221 words.
01Workshop Safety
Workshop safety is tested through hazard recognition, correct selection of PPE and fire equipment, and simple quantitative checks such as ventilation or floor loading. Questions often ask why a control is needed, not just its name.
293 words, about 1 min02Tools and Measuring Instruments
Tool and instrument questions test least count, reading technique, zero error and instrument selection. Match the instrument to the tolerance: steel rule for rough work, vernier for 0.02 mm, micrometer for 0.01 mm, dial gauge for deflection or runout, sine bar and slip gauges for angles.
317 words, about 2 min03Engineering Materials and Material Properties
Material questions link composition and structure to properties and to the test used. Know ferrous versus non-ferrous metals, typical carbon ranges and where each is used.
304 words, about 2 min04Applied Workshop Calculations (length, area, volume, mass, density)
Workshop calculations convert a drawing into material quantity. The chain is length to area to volume to mass using density.
249 words, about 1 min05Units, Measurement Systems and Percentage/Proportion in Workshop Contexts
Units questions check that you can convert cleanly, use SI prefixes and apply percentage or proportion to tolerances and mixtures. Base units are metre, kilogram, second, ampere, kelvin, mole and candela.
292 words, about 1 min06Machining Calculations (cutting speed, feed, rpm, machining time)
Machining calculations relate cutting speed, spindle speed, feed and length to time and output. Standard formulas use diameter in mm and speed in m/min.
285 words, about 1 min07Taper, Thread and Gear Calculations
Taper, thread and gear questions are formula-recognition questions with a small calculation. Write the formula, substitute in consistent units, then check whether the answer is an angle, a ratio or a length.
320 words, about 2 min08Basic Electrical and Power Calculations in the Workshop
Electrical questions in the workshop test Ohm's law, power, energy and motor input current. Always distinguish input power from output shaft power, and kW from kWh.
275 words, about 1 min09Costing, Estimation and Material Requirement Calculations
Estimation converts a drawing and process plan into material, labour, overhead and price. The exam favours a clean build-up per piece with allowances shown explicitly.
297 words, about 1 min10Workshop Drawing Interpretation and Geometric Calculations
Drawing interpretation questions ask you to read views, symbols, tolerances and scales, then calculate a missing dimension. First-angle and third-angle projection, line conventions and geometric tolerancing carry easy marks.
283 words, about 1 min11Maintenance, Lubrication and Energy/Consumption Calculations
Maintenance questions cover maintenance strategy, lubrication selection and energy or cost calculations. Reliability numbers and kWh costs are common.
306 words, about 2 min