Maharashtra SSC Workshop Science & Calculation ITI case studies
Maharashtra SSC Workshop Science & Calculation ITI · Put your knowledge to work in context.
The Maharashtra SSC Workshop Science & Calculation ITI paper is a state-level written examination that tests the science and calculation foundations taught in Industrial Training Institute (ITI) trades. It is intended for ITI trainees and trade candidates who need to demonstrate competence in applied workshop arithmetic and basic science, typically as part of their ITI assessment or as a qualification check for further technical study or employment. The Maharashtra SSC Workshop Science & Calculation ITI case studies are 5 cases and about 3,634 words.
1Coolant Batch Reconciliation in the Machine-Shop Store
The store at a district ITI holds one 20-litre drum of soluble cutting-oil concentrate, bought for ₹420. The wall chart specifies 1 part concentrate to 20 parts water for turning and 1 part to 40 for surface grinding.
758 words, about 4 min2Open-Top Coolant Tank: Sheet Area, Floor Loading and Thickness Choice
A farm-equipment repair unit needs an open-top rectangular water tank for a coolant sump. Internal dimensions are 900 mm × 600 mm × 500 mm deep.
720 words, about 4 min3Drilling 150 Plates: HSS Versus Carbide on a Worn Radial Drill
A batch of 150 mild-steel plates, each 40 mm thick, must have a 20 mm diameter hole drilled through. The radial drilling machine has seven spindle speeds - 80, 125, 200, 315, 500, 800 and 1250 r/min - and four feeds - 0.10, 0.15, 0.20 and 0.25 mm/rev.
733 words, about 4 min4Lathe Set-Up: M20 × 2.5 Thread and a 1:50 Taper on the Same Machine
A 1.5 kW centre lathe has a 6 mm pitch lead screw and a change-gear set containing 20, 24, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90, 100, 110 and 120 teeth. The job is an M20 × 2.5 external thread, 60 mm long, cut on a 45 mm diameter mild-steel bar held in a chuck.
746 words, about 4 min5Furnace Batch Heating and Quench-Pump Motor Protection
A heat-treatment bay has an electrically heated tempering furnace rated 6 kW at 415 V three-phase, and a 5.5 kW three-phase induction motor driving the quench-oil pump. The motor nameplate gives 88% efficiency and 0.85 power factor.
677 words, about 3 min