The main topics covered in DRDO exam for Mechanical Engineering include Engineering Mechanics, Theory of Machines, and Fluid Mechanics. Heat-Transfer, Thermodynamics, Engineering Materials etc are also other important sections from where questions are usually prepared for this exam. Detailed syllabus of Mechanical Engineering paper for DRDO exam is briefed in the article.

Engineering Mechanics

• Free body diagrams and equilibrium
• Virtual work
• Impulse and momentum
• Trusses and frames
• Kinematics and dynamics

Strength of Materials

• Stress and strain
• Elastic constants
• Bending and shear stresses
• Torsion of circular shafts
• Strain energy methods
• Stress-strain relationship
• Mohr’s circle
• Deflection of beams
• Euler’s theory of columns
• Thermal stresses

Theory of Machines

• Displacement
• Slider-crank mechanism
• Flywheels
• Plane mechanisms
• Gear trains

Design

• Static and dynamic loading
• Fatigue strength
• Failure theories
• S-N diagram

Fluid Mechanics

• Fluid properties
• Manometry
• Fluid acceleration
• Bernoulli’s equation
• Boundary layer
• Fluid statics
• Buoyancy
• Continuity and momentum
• Viscous flow
• Elementary turbulent flow

Heat-Transfer

• Modes of heat transfer
• Resistance concept
• Unsteady heat conduction
• Thermal boundary layer
• Radiative heat transfer
• LMTD and NTU methods
• One dimensional heat conduction
• Electrical analogy
• Fins
• Effect of turbulence
• Heat exchanger performance

Thermodynamics

• Zeroth
• Thermodynamic system and processes
• Irreversibility and availability
• Properties of pure substances
• Energy conversion
• Laws of thermodynamics
• Carnot cycle
• Behavior of ideal and real gases
• Thermodynamic cycles

Applications

• Power Engineering
• Rankine
• I.C. Engines
• Air-conditioning
• Heat pumps
• Reverse Brayton cycle
• Psychometric chart
• Turbo machinery
• Francis and Kaplan turbines
• Steam Tables
• Brayton cycles
• Refrigeration
• Vapor refrigeration cycle
• Gas refrigeration
• Moist air
• Psychometric processes
• Pelton-wheel
• Velocity diagrams

Engineering Materials

• Stress-strain diagrams
• Heat treatment

Metal Casting

• Design of patterns
• Solidification and cooling
• Design considerations
• Moulds and cores
• Riser and gating design

Forming

• Plastic deformation
• Load estimation
• Hot and cold working processes

Joining

• Welding
• Soldering
• Design in welding
• Brazing
• Adhesive bonding

Machining and Machine Tool Operations

• Mechanics of machining
• Tool geometry and materials
• Economics of machining
• Principles of work holding
• Single and multi-point cutting tools
• Tool life and wear
• Non-traditional machining processes
• Design of jigs and fixtures

Metrology and Inspection

• Limits
• Linear and angular measurements
• Interferometry
• Alignment and testing methods
• Tolerance analysis
• Fits
• Tolerances
• Comparators
• Gauge design
• Form and finish measurement

Computer Integrated Manufacturing

• CAD
• Integration tools
• CAM

Production Planning and Control

• Scheduling
• Forecasting models
• Aggregate production planning
• Materials requirement planning

Inventory Control

• Safety stock inventory control systems
• Deterministic models
• Probabilistic models

Operations Research

• Linear programming
• Transportation
• Network flow models
• PERT
• Simplex and duplex method
• Assignment
• Simple queuing models
• CPM

Aspirants should study all the portions in detail with the help of standard reference books. They can clear this entrance exam provided they have a plan by which they can cover the above mentioned steps and also practice as many previous years papers as possible.