Syllabus – Junior Engineer (Mechanical) Recruitment

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Assam Public Service Commission (APSC) – Junior Engineer (Mechanical)

Department: Water Resources Department, Govt. of Assam
Advt. No.: 18/2025
Date: 05.05.2025

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PAPER-I: Mechanical Engineering (Diploma Standard)

Marks: 100 | Time: 2 Hours | OMR-Based MCQ

1. Engineering Mechanics

• Coplanar concurrent & non-concurrent forces
• Triangle & Polygon Law of Forces
• Moment (Bell Crank Lever, Simply supported beam)
• Friction (Coefficient determination on horizontal & inclined plane)
• Pulley systems (Simple pulleys, Screw jack)
• Power measurement (Rope/Prony brake)
• Mechanical advantage, velocity ratio, efficiency

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2. Fluid Mechanics & Fluid Machines

• Fluid Mechanics Fundamentals: Solid, liquid, gas; Properties: density, specific weight, viscosity, surface tension
• Fluid Statics: Pressure, Pascal’s law, hydrostatics, buoyancy, meta-centre
• Fluid Kinematics: Laminar & turbulent, steady/unsteady, continuity equation, Bernoulli’s theorem
• Fluid Measurements: Piezometer, manometers, Venturimeter, Orifice meter, Pitot tube
• Pipe & Open Channel Flow: Losses, Chezy & Manning formula
• Fluid Machines: Impact of jet, hydraulic turbines (Pelton, Francis, Kaplan), Pumps (reciprocating, centrifugal)

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3. Fundamentals of Electrical Engineering

• Basics: Current, voltage, resistance, capacitance, Ohm’s law, Kirchhoff’s laws, Wheatstone bridge
• DC machines: Generators & motors, types and comparison
• AC & Transformers: Amplitude, frequency, RMS, RLC circuits, step-up/down transformer
• House wiring & safety

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4. Manufacturing Technology

• Machine tools, cutting tools, chip formation, tool wear
• Welding: Arc, TIG, MIG, Submerged arc, Plasma, Laser
• Powder metallurgy
• Lathe, Drilling, Shaper, Planer, Slotter, Milling, Grinding
• Non-traditional machining: Ultrasonic, EDM, Abrasive jet, Laser
• Jigs & fixtures, Cutting fluids & coolants

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5. Thermodynamics

• Systems, properties, work, heat, laws of thermodynamics
• Gas laws, thermodynamic processes (isothermal, adiabatic, polytropic, etc.)
• Fuels & combustion, calorific value
• Air standard cycles (Carnot, Otto, Diesel, Dual)
• Steam properties, Rankine cycle, heat transfer, heat exchangers

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6. Engineering Materials

• Mechanical properties: strength, ductility, hardness, fatigue, creep
• Structure of solids & crystal systems
• Ferrous & non-ferrous metals, alloys
• Cutting tool materials, plastics
• Material testing: Destructive & non-destructive methods
• Heat treatment, corrosion, surface engineering

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7. Theory of Machines

• Kinematics of machines, links, pairs, chains, mechanisms
• Friction (journal, pivot, collar bearings)
• Dynamometers, transmission of power (belt drives, ropes)
• Gears & gear trains, cams, mechanical vibrations, balancing, governors

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8. Strength of Materials

• Stress & strain, axial, lateral, thermal stresses
• Riveted joints, shear force & bending moments
• Theory of simple bending, beam deflection
• Torsion of shafts, springs, columns & struts

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9. Thermal Engineering

• Steam generators & boilers, accessories & fuels
• Steam nozzles, turbines, condensers, cooling towers
• Internal Combustion Engines (Otto, Diesel, dual cycles), fuel & ignition systems
• Engine lubrication, cooling, exhaust systems
• Governing & performance testing

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10. Automobile Engineering

• Automobile basics: chassis, frame, engine components
• Engine fuel systems, supercharging
• Lubrication & cooling systems
• Automotive electrical systems (starting, charging, ignition)
• Suspension, steering, power transmission, brakes, wheels & tyres

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11. Refrigeration & Air Conditioning

• Refrigeration terms, methods, systems (Vapour compression & absorption)
• Refrigerants & their properties
• Components & safety devices
• Applications: food preservation, cold storage, ice cream plant, water cooler
• Air conditioning & psychometrics

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PAPER-II: General Studies & General English

Marks: 100 | Time: 2 Hours | OMR-Based MCQ

Sl. No.	Topics
1	Current Affairs (India & Assam)
2	Indian History & National Movement
3	Assam History
4	Geography (India & Assam)
5	Indian Polity & Constitution
6	Sports / Books / Authors / Important People of Assam
7	Economy of India & Assam
8	Environment of Assam
9	General Mental Ability
10	Literature, Culture & Festivals of Assam & North East
11	English Grammar

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