Jkssb JE Mechanical syllabus 2020 Jkssb Junior Engineer(JE) Mechanical syllabus Syllabus for Junior Engineer Mechanical 2020
Jammu and Kashmir service selection board (JKSSB) has announced 30 vacancies of Junior Engineer(Mechanical) UT in Public Works(R&B) Department.
Syllabus for Junior Engineer Mechanical 2020
Name of the post:- Junior Engineer(Mechanical)
Name of department:- Public Works(R&B) Department
Advertisement No:- 05 of 2020
Total Vacancies:- 30
Jkssb Junior Engineer(JE) Mechanical syllabus 2020
Total Marks = 120
Time = 120 Minutes
1. Theory of Machines and Machine Design: (15 Marks)
Four bar linkage and link motion, Flywheels and fluctuation of energy, Power transmission by belts-V-belts and Flat belts. Gears-Type of gears, gear profile and gear ratio calculation. Cams. Governors-Principles and classification. Design of keys, shafts, Riveted joint, couplings.
2. Engineering Mechanics and Strength of Materials: (15 Marks)
Laws of forces, Equilibrium of Forces, Moment of Inertia, Laws of motion. Friction. Concept of simple machines, M A, V R, %age. Concepts of stress and strain, Elastic limit and elastic constants. Bending moments and shear force diagram. Stress in composite bars. Torsion in circular shafts. Columns: Euler’s and Rankine’s theories. Thin-walled pressure vessels.
3. Thermal Engineering and Refrigeration & Air-conditioning: (20 Marks)
Thermodynamics: Heat, work and temperature, First and second laws of thermodynamics. Carnot, Rankine, Otto and Diesel Cycles. P-v & P-T diagrams H2O. Saturated, wet & superheated steam. Definition of dryness fraction of steam, degree of superheat of steam. Rankine cycle of steam: Simple Rankine cycle, plot on P-V, T-S, h-s planes, Rankine cycle efficiency with & without pump work. Concept of COP, Carnot Cycle, Vapour compression cycle. Refrigerants. Psychometry, DBT, WBT, DPT.
4. Fluid Mechanics & Machinery: (15 Marks)
Properties & Classification of Fluids, Newton’s law of viscosity, Fluid Statics, Measurement of Fluid Pressure by Manometers, U-tube, Inclined tube. Fluid Kinematics: Stream line, laminar & turbulent flow, external & internal flow, continuity equation. Dynamics of ideal fluids: Bernoulli’s equation, Total head; Velocity head; Pressure head. Measurement of Flow rate, Basic Principles & working of Venturi meter, Pitot tube, Orifice meter. Hydraulic Turbines & Centrifugal Pumps
5. Material Science & Production Engineering: (20 Marks)
Structure of metals, Space lattice, Unit cell, BCC, FCC etc. Iron carbon diagram, Classification of Steels: mild steel & alloy steel. Heat treatment of steel. Welding – Arc Welding, Gas Welding, Resistance Welding, Special Welding Techniques i.e. TIG, MIG. Brazing & Soldering, Welding Defects & Testing. Foundry & Casting methods, defects, different casting processes. Forging, Extrusion etc. Metal cutting principles, cutting tools. Basic Principles of machining with Lathe, Milling, Drilling, Shaping, Grinding. Machine tools & manufacturing processes.
6. Metrology and Automobile Engineering: (15 Marks)
Tools used in Linear Measurements, Angular Measurement, Surface finish. Limits, fits & Tolerance, Error, Classification of Automobiles. Transmission, Steering, Braking, Suspension system. IC Engine Performance, IC Engine Combustion process, Cooling and Lubrication system in I.C Engine
7. Industrial Management and CAD/CAM: (20 Marks)
Planning, Organizing, Leading, Controlling. Inventory Control, Inspection & Quality Control. Basic concepts of CAD/CAM. NC, DNC, CNC machines.
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