Tamil Nadu HSE First Year Basic Mechanical Engineering study plan
Tamil Nadu HSE First Year Basic Mechanical Engineering · Give each week a clear focus.
8 weeks · About 6 hours per week
Engineering Materials & Hand Tools and Work Bench Operations
Classify engineering materials into ferrous, non-ferrous, alloys and non-metals, and write one property (strength, ductility, hardness, conductivity) that decides each use.
List the standard hand tools used at a bench and state the single job each one performs, so no tool is confused with another.
Explain why each tool's material and heat treatment (e.g. hardened cutting edge versus soft striking head) suits its function.
Demonstrate correct holding and striking posture for a hammer and correct gripping for a file, and note the common misuse that damages each tool.
Your checkpoint
A hand-written one-page material-and-tool chart: 12 materials with one property and one use each, plus 10 bench tools with their job, material and one misuse warning.
Hand Tools and Work Bench Operations & Fitting and Bench Work
Identify marking-out and measuring tools used in fitting (scriber, punch, dividers, try square, vernier caliper) and state the accuracy limit of each.
Describe the sequence of operations to mark out and cut a rectangular job: measuring, scribing, centre-punching, sawing, filing.
Explain the purpose and cutting action of files of different grades and cross-sections, and choose the right file for a given surface.
State the safety rules for hacksawing and filing, including blade selection, tension and workpiece clamping.
Your checkpoint
A written step-by-step method sheet for producing a rectangular block to given dimensions, listing every tool in order of use with the check made after each step.
Fitting and Bench Work & Sheet Metal Work
Explain drilling, tapping and reaming in bench work: drill size selection for a tap, tap drill versus clearance drill, and the role of lubricant.
Describe sheet metal operations: shearing, bending, folding, seaming, riveting and the use of stakes.
Calculate the blank size for a simple bend allowance and state why the neutral axis is used.
Compare the tools of sheet metal work (snips, stakes, mallet, groover) with those of fitting, and justify each choice.
Your checkpoint
A worked example calculating blank length for a right-angle bend in 1.5 mm sheet, plus a labelled list of eight sheet metal tools with their function.
Sheet Metal Work & Carpentry and Wood Working
Name the parts of a tree cross-section (pith, heartwood, sapwood, cambium, bark) and link each to a working property of timber.
Distinguish softwood from hardwood and state two workshop uses of each with the reason.
Describe carpentry joints (lap, mortise and tenon, dovetail, dowel) and the marking and cutting sequence for each.
Explain seasoning of timber, its purpose, and the defects that appear in badly seasoned wood.
Your checkpoint
A comparison table of four carpentry joints giving a labelled sketch description, the tools used, and one application each, plus a 10-line note on seasoning and wood defects.
Forging and Smithy & Foundry and Casting
Describe the forging operations: upsetting, drawing down, bending, punching and setting down, and the tools used for each.
Explain the effect of heating temperature on forgeability and the signs of correct forging heat, including colour indication.
Outline the sand casting sequence from pattern to finished casting: moulding, core, gating, pouring, shakeout, cleaning.
Identify casting defects (blowhole, shrinkage cavity, misrun, hot tear) and state one cause of each.
Your checkpoint
A flow diagram of the casting process with at least eight stages, annotated with one defect that can arise at each stage and its cause.
Welding and Joining Processes & Machining and Machine Tools
Compare arc welding, gas welding, soldering and brazing on heat source, filler, and typical application.
Explain electrode selection, polarity, and the difference between AC and DC welding sets for a given job.
Identify the main parts of a lathe and a drilling machine and state the operation each part enables.
Describe turning operations: facing, plain turning, step turning, knurling, and the cutting parameters that control each.
Your checkpoint
A two-column comparison sheet covering four joining processes and a labelled-parts list for lathe and drilling machine with the operation enabled by each part.
Mechanical Power Transmission and Simple Mechanisms & Safety, Measurement and Workshop Practice
Explain the simple machines and mechanisms: lever classes, pulley systems, gear types, and belt and chain drives, with one workshop example of each.
Calculate velocity ratio and mechanical advantage for a simple pulley or lever arrangement.
State measurement practice: least count of vernier caliper and micrometer, and how to read each scale correctly.
List workshop safety rules for each shop visited (fitting, sheet metal, carpentry, smithy, foundry, welding, machine shop).
Your checkpoint
A single reference sheet with two worked velocity-ratio calculations, one vernier and one micrometer reading worked out fully, and a 10-point shop safety checklist.
Engineering Materials & Hand Tools and Work Bench Operations & Fitting and Bench Work & Sheet Metal Work & Carpentry and Wood Working & Forging and Smithy & Foundry and Casting & Welding and Joining Processes & Machining and Machine Tools & Mechanical Power Transmission and Simple Mechanisms & Safety, Measurement and Workshop Practice
Revise all eleven domains using the deliverable sheets produced in weeks 1 to 7, marking any topic still unclear.
Answer at least 60 mixed practice questions under timed conditions and record the score per domain.
Re-study the two weakest domains and re-test only those, aiming for a clear improvement.
Memorise the small set of high-value facts: tool names and uses, standard joint names, casting and welding terms, and least-count values.
Your checkpoint
A timed mock-test record showing score per domain before and after targeted revision, with a final list of no more than five facts still to confirm.
Milestones
Week 2: Can name every bench tool in the week 1 chart and state its job without looking, and can write the full marking-out-to-filing sequence from memory.
Week 4: Can explain blank-size calculation for a bend and describe four carpentry joints with tools, without notes; half the syllabus by weight is now covered.
Week 6: Can draw the casting flow and label lathe and drilling machine parts from memory, and compare four joining processes in a table.
Week 8: Timed mock score improves in the two weakest domains after targeted revision, and no domain is left without a written summary sheet.