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WHAT ARE THE VIVA QUESTIONS THAT CAN BE ASKED FROM THE TOPICS BELOW
Introduction: Computer in Engineering design, Elements of CAD, Essential requirements of CAD, CAD Tools, Concepts of integrated CAD/CAM, Necessity & benefits, Engineering Applications. Computer Graphics Hardware: Graphics systems, Graphics Input devices-cursor control devices, Graphics output devices. UNIT 2 Geometric Transformation: Translation, Scaling, Shearing, Rotation & Reflection Matrix representation-homogeneous coordinates, Rotation and scaling about arbitrary point, Reflection through arbitrary line, Composite transformation, 3D transformations, multiple transformation, Projections Viewing and Clipping: Windowing and clipping, clipping other graphic entities, and windowing transformation. UNIT-3 Geometrical Modelling: Analytical and synthetic curves, curve manipulations, Surface representation and surface analysis, analytical and synthetic surfaces, surface manipulations, NURBS. Solid Modeling: Geometry and topology, solid entities, solid representation, fundamental of solid modeling, half spaces, boundary representation, constructive solid geometry, sweeps, solid manipulations.
UNIT 4 Features of NC Machines: Fundamental of Numerical Control, elements of NC machine tools, classification of NC machine tools, Advantages, suitability and limitations of NC machine tools, Application of NC system, Methods for improving Accuracy considering the factors such as tool deflection and chatter, Methods for improving productivity. NC Systems: Open anii closed loops, Control of point-to-point systems - Incremental open loop control, Incremental close loop, Absolute close loop: Control loop in contouring systems; Adaptive control. UNIT-5 Computer Numerical Control (CNC): Features of CNC, Elements of CNC machines, the machine control unit for CNC, Direct Numerical Control (DNC) and Adaptive Controls. CNC Part Programming: Part programming fundamentals, Manual programming for drilling, turning and milling operations, canned cycles, Do loops, Subroutine, and Macros. Computer aided part programming, APT programming. Geometry, Motion and additional statements, Macro-statement.