This was the successful road map he followed to achieve AIR 22 in GATE-ME 2014:
(1) ENGINEERING MATHEMATICS
This constitutes 15% of the total marks of the paper. Problems on finding rank of matrix, type of solution (unique, infinitely many etc.), simple integration (using Trapezoidal, Simpson’s 1/3rd rule etc.), Simple formula based Laplace Transforms, simple probability distributions (normal, poisons, binomial distribution , uniform distribution ), directional derivatives, divergence, curl, simple dice problems, limits, simple PDE are all common.
(2) MECHANICS, SOM
This constitutes 10-15 marks of your paper. You can find simple FBD problems (just 1) for finding force, conservation of momentum, block and slope type (average stress and maximum stress for different sections like rectangle ,triangle etc.), Macaulay’s theorem (slope & deflection), one question on thin pressure vessels, problems on various theories of failure , torques, and bending moment calculation, truss.
This constitutes 10-15 marks of your paper. You can find simple FBD problems (just 1) for finding force, conservation of momentum, block and slope type (average stress and maximum stress for different sections like rectangle ,triangle etc.), Macaulay’s theorem (slope & deflection), one question on thin pressure vessels, problems on various theories of failure , torques, and bending moment calculation, truss.
(3) DESIGN OF M/C ELEMENTS, TOM
This chapter makes up a huge chunk of your marks – 15 to 20! Expect one problem on (Goodman or Soderberg or Gerber Criteria), bearings (life) calculation , torsion of a bar, loading on a plate with bolts, strain energy, S-N curve, degrees of freedom, output velocity calculation of mechanism, relative velocity approach, Instantaneous Centre Method, clutch power, brake power, belt drive, conceptual questions on D.O.F. of mechanisms, simple gearing ratio problems on spur gears, type of mechanism (based on link lengths), simple spur gear main, quick return mechanism, mobility.
This chapter makes up a huge chunk of your marks – 15 to 20! Expect one problem on (Goodman or Soderberg or Gerber Criteria), bearings (life) calculation , torsion of a bar, loading on a plate with bolts, strain energy, S-N curve, degrees of freedom, output velocity calculation of mechanism, relative velocity approach, Instantaneous Centre Method, clutch power, brake power, belt drive, conceptual questions on D.O.F. of mechanisms, simple gearing ratio problems on spur gears, type of mechanism (based on link lengths), simple spur gear main, quick return mechanism, mobility.
(4) VIBRATIONS
Questions on vibration account for 2-4 marks. You will find questions on simple single D.O.F , finding natural frequencies (underdamped, critically damped, overdamped)
Questions on vibration account for 2-4 marks. You will find questions on simple single D.O.F , finding natural frequencies (underdamped, critically damped, overdamped)
(5) FLUID MECHANICS
This chapter accounts for 5-10 marks. Expect questions on simple & differential piezometer, pressure column height calculation, Reynold’s no. calculation, hydraulic power ,nozzle velocity etc. of turbines, continuity equation, Bernoulli’s law (simple problems), tapered sections, pump parameters (speed, power, discharge), gates(of dams) force calculation, venturimeter , laminar flow.
(6) THERMAL SCIENCE
This is another chapter that accounts for 5-10 marks. Problems asked are usually based on Rankine Cycle, Brayton Cycle, Regeneration in steam cycles, and other cycles, T-S diagrams, P-V diagrams, enthalpy calculations, C.O.P., ŋ, parameters of I.C. engine (power, volume capacity, stroke, ŋ, brake power), DBT(Dry Bulb Temp.), WBT (Wet Bulb Temp.), ŋ relations (otto ,diesel cycles), work done, exit temperature in various stages of cycles , pressure of nozzle, compressor work calculations.
This chapter accounts for 5-10 marks. Expect questions on simple & differential piezometer, pressure column height calculation, Reynold’s no. calculation, hydraulic power ,nozzle velocity etc. of turbines, continuity equation, Bernoulli’s law (simple problems), tapered sections, pump parameters (speed, power, discharge), gates(of dams) force calculation, venturimeter , laminar flow.
(6) THERMAL SCIENCE
This is another chapter that accounts for 5-10 marks. Problems asked are usually based on Rankine Cycle, Brayton Cycle, Regeneration in steam cycles, and other cycles, T-S diagrams, P-V diagrams, enthalpy calculations, C.O.P., ŋ, parameters of I.C. engine (power, volume capacity, stroke, ŋ, brake power), DBT(Dry Bulb Temp.), WBT (Wet Bulb Temp.), ŋ relations (otto ,diesel cycles), work done, exit temperature in various stages of cycles , pressure of nozzle, compressor work calculations.
(7) HEAT TRANSFER
5-10 marks are generally allotted to this chapter. Make sure to study convection, conduction, radiation, Efficiency calculation, heat exchanger (parallel & counter flow) outlet temp. calculation, biot number, Prandtl number, LMTD, Heat transfer through slabs, shells,cylinders, condenser, view factor, unsteady cooling.
5-10 marks are generally allotted to this chapter. Make sure to study convection, conduction, radiation, Efficiency calculation, heat exchanger (parallel & counter flow) outlet temp. calculation, biot number, Prandtl number, LMTD, Heat transfer through slabs, shells,cylinders, condenser, view factor, unsteady cooling.
(8) MANUFACTURING SCIENCE
This is a monster chapter. It accounts for 10-15 marks. Expect formula based problems on machining (milling, drilling, EDM, ECM) machining time, current, tool geometry, punching, blanking, force; conceptual & theoretical questions; orthogonal machining , heat & power required in welding, transformations (rotations, scaling etc.), solidification time, CNC machine G codes and M Codes , sheet metal, various types of fits, clearance calculation, arc welding, cutting time ( ).
(9) INDUSTRIAL ENGINEERING
10-15 of the total marks are usually from this chapter. Be prepared with forecasting model, CPM, PERT, depreciation, cost (labour, tool grinding cost, waiting cost etc.), P-chart, C-chart, R-chart, X- chart, Time study, EOQ, standard time, demand, Poisson’s arrivals & departures , LPP problems (graphical), simplex method, GO, NO-GO gauges, Machine allocation problems, Sequencing problems , EDD, SPT rule (scheduling) etc.
All the best!
This is a monster chapter. It accounts for 10-15 marks. Expect formula based problems on machining (milling, drilling, EDM, ECM) machining time, current, tool geometry, punching, blanking, force; conceptual & theoretical questions; orthogonal machining , heat & power required in welding, transformations (rotations, scaling etc.), solidification time, CNC machine G codes and M Codes , sheet metal, various types of fits, clearance calculation, arc welding, cutting time ( ).
(9) INDUSTRIAL ENGINEERING
10-15 of the total marks are usually from this chapter. Be prepared with forecasting model, CPM, PERT, depreciation, cost (labour, tool grinding cost, waiting cost etc.), P-chart, C-chart, R-chart, X- chart, Time study, EOQ, standard time, demand, Poisson’s arrivals & departures , LPP problems (graphical), simplex method, GO, NO-GO gauges, Machine allocation problems, Sequencing problems , EDD, SPT rule (scheduling) etc.
All the best!
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