MECHANIC

MECHANIC 

KERALA AGRO MACHINERY CORPORATION LTD 

CATEGORY NO. 287/2012 

PART-I
MOTOR MECHANIC / TRACTOR MECHANIC / MECHANIC / AGRICULTURAL MACHINERY
1. Shock Absorbers :- Function, Types, Hydraulic Shock Absorbers 
2 Steering Geometry:- Checking and adjusting wheel alignment, camber angle,  caster angle, kingpin inclination, toe-in, toe-out. 
3. Brake System:- Function, Types of Brake, Power Brake, Hydraulic  Brake, Air Brake 
4. Clutch:- Function, Types of Clutch, Cone Clutch, Hydraulic  Operated Clutch, Multi Plate Clutch. 

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5. Fluid Fly Wheel:- Introduction. Main parts of fluid fly wheel, Torque convertor. 
6. Gear Box:- Resistance on Moving Vehicle, Gear Ratio, Mechanic Advantage using gear, Types of Gears. 
7. Engine:- Spark Ignition Engine, 4Stroke and 2Stroke Engine 
8. Compression Ignition Engine, 4Stroke and 2Stroke Engine 
9. Vankel Engine and Turbine 
10. Engine Components:- Piston, Rings, Crank Shaft, Fly wheel, Bearing, Valve, 
 Timing Gears. 
11. Cooling System:- Necessity of Cooling System, Air cooling, Water cooling 
12. Lubricating System: Necessity of Lubricating System, Forced Lubricating  System, Oil Pump, Oil Cooler, Oils, Oil relief Valve, Oil  Pressure Gauge
13. Fuel Supply System: Gravity Feed System, Force Feed System, Carburettor, 
 Fuel Injection Pump, Injector, Governor (Speed), Feed  Pump,

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PART----II
FITTER
(1) Marking and Measuring Tools : 
 Surface Plate – Scriber – Caliper – Trammel – Punches – Surface Gauge – V block – protractor – combination set ( including safety rules). 
(2) Hand Tools:-
 Hammer – Vices – Screwdrivers – spanners – pliers – socket spanners 
(3) Measuring Tools : 
 Measurement – System of Units – STEEL RULE – Trisquare – Micrometer – Vernier caliper – Dial caliper – Vernier Bevel protractor – (internal, external, depth, thread and various types of measurements) 
(4) Gauges :- 
 LIMIT gauges and Fixed gauges – Plug gauges – Ring gauges – snap gauges – Telescopic 
gauges – Ample gauges – Radius gauges – Screw pitch gauges – Bevel gauges – Bore gauges – Drill gauges – Vernier tooth gauge – Slip gauges – sine bar 
(5) Cutting Tools and Operations :-
 FILE – parts – cut – grade – type – specification – filing techniques – convexity of file – 
HACKSAW – CHISELS – SCRAPER – DRILLING & DRILLS – Type of Drilling Machines – RPM – CUTTING SPEED – DRILLING TIME – Safety – REAMING – BORING – TAPING – THREAD CUTTING – DIES – GRINDING – Speed of Grinding Wheels 
(6) Screw thread and Fasteners:-
 Screw Thread – Element of Thread – Types – Single start – Multi start – right hand – left hand – Foundation Bolts – Type of Bolts – NUTS – STUDS – KEYS - PINS – SPLINES – FLANGES – COUPLINGS – CIRCLIPS – SOLDERING – BRAZING – TINNING – REVETING – SPRINGS – TAPER – Types of Taper. 
(7) LIMITS AND FITS 
 SURFACE FINISH – GEOMETRICAL TOLERANCE –SURFACE FINISHING 
OPERATIONS 
(8) POWER TRANSMISSION  
BELT – GEAR – CLUTCHES – BEARINGS – CAM 
(9) LUBRICATION 
 COOLANTS – GENERAL MAINTENANCE 
(10) JIG AND FIXTURES 
FERROUS AND NON FERROUS METALS – CAST IRON – WROUGHT IRON – 
STEEL – ALLOYS – NON METALS – Heat Treatment – Forging – Sheet Metal Work – Welding – Pipe and pipe fitting 
(11) HYDRAULICS  :- 
 Types of Valves – Symbols – Hydraulic Fluids – Hydraulic Pumps – Pascal’s Law – Hydraulic Actuators – Hydraulic Circuits. 

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PART----III
WORKSHOP CALCULATION AND SCIENCE
1. Simple Fraction :- Addition, Subtraction, Multiplication & Division 
2. Ratio and Proportion
3. Percentage 
4. Algebra :- Algebraic equations, Quadratic equations 
5.Trigonometry :- Trigonometric ratios, Trigonometric identities, Height and Distance 
 Trigonometric values of certain angles 
6.Mensuration:- Area of Plane figures (Triangle, Square, Rectangles, Polygons) 
 Volume of Solids (Pyramids and Prisms) , Lengths of Belts 
7.Heat and Temperature:- Definition, Unit, Scales, Co-efficient of Linear Expansion, 
 Latent heat of fusion, Latent heat of vaporization, Thermal 
 Capacity, Interchange of heat, Tansmission of heat, 
 Temperature measuring instrument. 
8.Friction:- Definition, Advantages and Disadvantages of Friction, Normal Reaction, 
 Limiting Friction, Law of Limiting Friction, Co-efficient of Friction, Angle 
 of Friction, Inclined Plane. 
9.Work, Power, Energy:- Definition, Units, Types of Energy, Kinetic Energy, Potential 
 Energy, Horse Power of Engine, 1 H.P., B.H.P, F.H.P., 
 Mechanical Efficiency, Transmission of Power by a Belt Pully 
 Drive, I H.P. of Steam and Petrol Engines. 
10. Moment and Lever:- Definition, Types of Lever, Application of Lever 
11. Simple Machines:- Effort, Load, Mechanical Advantage, Velocity Ratio, Efficiency of 
 Machine Screw Jack 
12. Forces:- Newton’s Law of Forces, Parallelogram Law, Triangle Law, Conditions of 
 Equilibrium, Kinds of Equilibrium, Moment of Inertia. 
13. Mass, Weight, Density and Relative Density. 

PART- IV

FACTS ABOUT INDIA & KERALA