Computer Graphics Solved MCQs

The basic element of a picture in volume graphics is Pixel Volsel Voxel None of above       _____________________________________________________________________________________

The ISO standard for computer Graphics is Graphics Kernel System Graphics Standard System Computer graphics standard None of above       _____________________________________________________________________________________

The amount of light emitted by the phosphor coating depends on the? Number of electrons striking the screen Speed of electrons striking the screen Distance from the cathode to the screen None of above       _____________________________________________________________________________________

The best hidden surface removal algorithm is Painters Depth buffer Area subdivision Depends on the application       _____________________________________________________________________________________

Computer generated models of physical,financial and economic systems are often used for ? Entertainment Quality Control Educational Aid None of above       _____________________________________________________________________________________

The ......... simply reads each successive byte of data from the frame buffer Digital Controller Data Controller Display Controller All of above       _____________________________________________________________________________________

The subcategories of orthographic projection are Cavalier, cabinet, isometric Cavalier, cabinet Isometric, dimetric, trimetric Isometric, cavalier, trimetric       _____________________________________________________________________________________

The anti - aliasing technique which allows shift of 1/4,1/2 and 3/4 of a pixel diameter enabling a closer path of a line is ? Pixel phasing Filtering Intensity compensation Sampling technique       _____________________________________________________________________________________

The perspective anomaly in which the object behind the centre of projection is projected Perspective foreshortening Vanishing view View confusion Topological distortion       _____________________________________________________________________________________

The refresh rate below which a picture flickers is 25 30 35 60       _____________________________________________________________________________________

Back face removal is an example of Object space method Image space method Combination of both None of above       _____________________________________________________________________________________

All the hidden surface algorithms employee image space approach except ? Back face removal Depth buffer method Scan line method Depth sort method       _____________________________________________________________________________________

Input function are used for Control the data flow from these interactive devices Process the data flow from these interactive devices Both a & b None of these       _____________________________________________________________________________________

Fractals deals with curves that are Irregularly irregular Regularly irregular Irregularly regular Regularly regular       _____________________________________________________________________________________

The point at which a set of projected parallel lines appear to converge in called as a Convergence point Vanishing point Point of illusion Point of delusion       _____________________________________________________________________________________

Graphics and image processing technique used to produce a transformation of one object into another is called Animation Morphine Half toning None of above       _____________________________________________________________________________________

Which of the following device has a relative origin Joystick Track ball Mouse None of above       _____________________________________________________________________________________

The technique used to summarize the financial, statistical, mathematical,scientific and economic data is ? Computer Art Image processing Presentation Graphics None of above       _____________________________________________________________________________________

The maximum number of points that can be displayed without overlap on a CRT is refereed to as Resolution Persistence Attenuation None of above       _____________________________________________________________________________________

A view graph is An oversized slide designed for presentation on an O.H.P Designed and created by exposing film to the output of the graphics system A hard copy chart None of the above       _____________________________________________________________________________________

Computer Graphics models are now commonly used for making ? Motion pictures Music Videos Television shows All of above       _____________________________________________________________________________________

Assuming that one allows 256 depth value levels to be used how much memory would a 512 x 512 pixel display require to store the z-buffer 5l2 k 256 k 1024 k 128 k       _____________________________________________________________________________________

Raster scan systems display a picture from a definition in a Display file program Frame buffer Display controller None of the above       _____________________________________________________________________________________

In a clipping algorithm of Cohen & Sutherland using region codes, a line is already clipped if the Logical AND of the end point code is not 0000 Logical OR of the end points code is 0000 Logical AND of the end point code is 0000 A and B       _____________________________________________________________________________________

In displaying a clipped picture the efficient method is ? Clipping against the window and then applying the window transformation Applying window transformation and then clipping against the viewport Both A and B have the same efficiency Efficiency depends on whether the window is an aligned rectangle or not       _____________________________________________________________________________________

A surface appearing block Reflects all the incident colors Reflects all the incident colors expect block Reflects only block and absorbs the rest Reflects none       _____________________________________________________________________________________

Interactive computer graphics uses various kind of input devices such as Mouse Graphic tablet Joystick All of these       _____________________________________________________________________________________

........ used to regulate the flow of elections in CRT ? Electronic Gun Focusing electrode Control electrode All of the above       _____________________________________________________________________________________

The light pen is an Graphics input device Graphics output device Both a & b None of these       _____________________________________________________________________________________

A joystick is a Graphics input device Graphics output device Both a & b None of these       _____________________________________________________________________________________

The glow given off by the, phosphor during exposure of the electron beam is known as ? Fluorescence Phosphorescence Persistence All of the above       _____________________________________________________________________________________

If a and b are the end points of a line, then which one of the following is true ? If a and b are the end points of a line, then which one of the following is true ? If both end points are left, right, above or below the window, the line is completely visible. If both end points are left, right, above or below the window, the line is trivially visible. If both end points are left, right, above or below the window, the line is trivially invisible       _____________________________________________________________________________________

If the eccentricity is less than one then the conic is Circle Parabola Ellipse Hyperbola       _____________________________________________________________________________________

Special System designed for some training application are known as ? GUI Simulators Video Display Devices None of above       _____________________________________________________________________________________

When several types of output devices are available in graphics installation, it is convenient to use ? Bundled attributes Unbundles attributes Inquiry attributes All of above       _____________________________________________________________________________________

Gray scale is used in ? Monitor that have color capability Monitor that have no color capability Random scan display None of above       _____________________________________________________________________________________