Maharashtra HSC Mechanical Technology (Vocational) study plan

Label the parts and state the function of a centre lathe (headstock, tailstock, carriage, apron, feed rod, lead screw) on a blank diagram.

Calculate cutting speed, feed rate and machining time for straight turning, facing and taper turning using standard formulae, keeping units consistent.

Describe the operations of a radial drilling machine and select the correct work-holding device (machine vice, clamp, V-block, angle plate) for a given job.

Distinguish capstan and turret lathes by tooling, batch size and operation sequence.

Compute the taper angle and tailstock set-over for a dead-centre taper-turning job.

Differentiate up-milling from down-milling and choose the suitable method for a stated surface-finish and machine-condition requirement.

Calculate dividing-head indexing for a specified number of divisions and verify the result against the available hole circles.

Compare shaping, planing and slotting by stroke, tool motion and typical workpieces.

Specify a grinding wheel in abrasive-grit-grade-structure-bond notation for three given applications.

Apply first-angle and third-angle projection rules to decide the correct placement of six views of a simple block.

Convert an isometric sketch of a stepped block into three orthographic views in first-angle projection, with hidden lines shown correctly.

Apply standard dimensioning and tolerance practice: extension lines, dimension lines, leaders, arrowheads and limit notation.

Draw a full sectional view and a half sectional view of a simple bush and a pulley.

Produce a CAD part drawing using layers, centre lines, a title block and a bill of materials.

Interpret surface-finish symbols, welding symbols and geometric tolerance frames on a supplied part drawing.

Classify ferrous and non-ferrous engineering materials and match at least eight common materials to suitable applications.

Describe annealing, normalizing, hardening, tempering and case hardening by purpose, temperature range and cooling method.

Read the key points of the iron-carbon diagram: eutectoid composition, eutectoid temperature, ferrite, pearlite, cementite and martensite.

Calculate the least count of a vernier caliper, micrometer and vernier height gauge, then use them to measure a specimen correctly.

Explain limits, fits and tolerances (clearance, interference, transition) and interpret a hole/shaft designation such as H7/g6.

List dye penetrant, magnetic particle, ultrasonic and radiographic testing with one application for each.

Sequence the bench-work operations for a fitting job: marking, centre punching, sawing, filing, drilling, tapping and reaming.

Calculate tap drill sizes for M6, M8 and M10 and explain thread nomenclature (pitch, major diameter, flank angle).

Describe scraping, lapping and honing and state one industrial application of each.

Outline sand casting step by step (pattern, moulding, gating, pouring, knockout) and name one defect arising at each stage.

Describe open-die and closed-die forging and the effect of forging on grain structure and strength.

Distinguish arc, gas, TIG, MIG and resistance welding by heat source, electrode or filler and typical application.

Identify welding defects (porosity, slag inclusion, undercut, incomplete penetration) and match each to its likely cause.

Calculate the blank size including bend allowance for a sheet-metal tray and list shearing, piercing, blanking and drawing operations.

State Pascal's law and calculate force multiplication in a hydraulic press given the two piston areas.

Trace a simple pneumatic circuit using a 5/2 directional control valve and explain the function of the FRL unit.

List causes and prevention of common machine-shop accidents and select the correct PPE for turning, welding and grinding.

Describe a preventive maintenance schedule for a lathe and an air compressor, including lubrication points and belt-tension checks.

Explain lockout/tagout and permit-to-work procedures before maintenance on a rotating machine.

Prepare a cost estimate for a turned component covering material, machining time, labour rate, overhead and profit margin.

Distinguish job-shop, batch and mass production and name the plant layout suited to each.

Solve a full-length timed mock paper covering all nine domains and record section-wise scores.

Re-attempt every question missed in the mock and write out the corrected reasoning for at least ten of them.

Reproduce from memory the 20 highest-yield formulae: speed, feed, machining time, taper and set-over, indexing, least count, tap drill, press force and cost build-up.

Review the standard diagrams of lathe, milling, drilling, casting and hydraulic circuits for label-based questions.

Practise five drawing questions under a strict 25-minute limit each.