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      <title>2d transformation by Malathi Mala</title>
      <link>https://padlet.com/malathimk/CG</link>
      <description>Assignment</description>
      <language>en-us</language>
      <pubDate>2017-11-06 04:42:10 UTC</pubDate>
      <lastBuildDate>2025-09-24 18:46:24 UTC</lastBuildDate>
      <webMaster>hello@padlet.com</webMaster>
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         <title>Computer graphics</title>
         <author>malathimk</author>
         <link>https://padlet.com/malathimk/CG/wish/203734407</link>
         <description><![CDATA[<div>Assignment - transformation</div>]]></description>
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         <pubDate>2017-11-06 04:45:43 UTC</pubDate>
         <guid>https://padlet.com/malathimk/CG/wish/203734407</guid>
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         <title></title>
         <author>malathimk</author>
         <link>https://padlet.com/malathimk/CG/wish/203735002</link>
         <description><![CDATA[<div><br>1.        Smallest size object that can be displayed on a monitor is called .....................</div><div><br>a)   Picture element  b) Point            c)Dot Pitch       d) aspect ratio</div><div><strong><br>Ans: </strong>Picture element</div><div> </div><div>2.        Each screen point is referred to as .........................</div><div><br>a)   Resolution          b)Pixel             c)Persistence    d)Dot Pitch</div><div><strong><br>Ans: </strong>Pixel</div><div> </div><div>3.        On a monochromatic monitor, the frame buffer is known as ......................</div><div><br>a)   Display file        b) Pixmap        c) Bitmap         d) Refresh buffer</div><div><strong><br>Ans: </strong>Bitmap</div><div> </div><div>4.        On a color monitor, the refresh buffer is also called ..................... a)Frame buffer                    b)Pixmap         c)Bitmap          d)Display file</div><div><strong>Ans: </strong>Pixmap</div><div> </div><div>5.        .................. refers to pixel spacing.</div><div><br>a) Pixmap    b)Resolution    c)Pixel depth    d)Persistence</div><div><strong><br>Ans: </strong>Resolution</div><div> </div><div>6.        The distance from one pixel to the next pixel is called ........... a)Resolution          b)Dot Pitch      c)Pixmap         d)ppi</div><div><strong>Ans: </strong>Resolution</div><div> </div><div>7.        The maximum number of points that can be displayed without overlap on a CRT a)Aspect Ratio                      b)Resolution    c)Brightness     d)Pixel</div><div><strong>Ans: </strong>Resolution</div><div> </div><div>8.        ..................... is the number of points per centimeter that can be plotted horizontally and vertically. a)Aspect Ratio       b)Pixel Depth   c)Resolution    d)Dot Pitch</div><div><strong>Ans: </strong>Resolution</div><div> </div><div>9.        ...................... is the ratio of horizontal points to vertical points necessary to produce equal length lines in both direction.</div><div>a) Dot Pitch             b)Resolution    c)Aspect Ratio d) Height-Width Ratio</div><div><strong><br>Ans: </strong>Aspect Ratio</div><div><br><br></div><div> </div><div><br>10.    Identify the odd one out from the following</div><div><br>a) Frame Buffer      b)Pixmap         c)Display program       d)Refresh Buffer</div><div><strong><br>Ans: </strong>Pixmap</div><div> </div><div>11.     The shortest distance between any two dots of the same color is called ................... a)Resolution          b)Dot Pitch      c)Pixel Depth   d)ppi</div><div><strong>Ans: </strong>Dot Pitch</div><div><br>12.   The standard aspect ratio for PC is ................. a) 6:5 b) 4:3   c)3:2  d)5:3</div><div><strong>Ans: </strong>4:3</div><div> </div><div>13.    In CRT, the electron intensity is adjusted using .................</div><div><br>a)   Accelerating anode        b) Control grid             c) Electron gun            d) Focusing anode</div><div><strong><br>Ans: </strong>Control grid</div><div> </div><div>14.    Brightness of a display is controlled by varying the voltage on the ......................</div><div><br>a)   Focusing anode   b)Connection pins      c)Control grid d)Power supply</div><div><strong><br>Ans: </strong>Control grid</div><div> </div><div>15.    Lower persistence phosphorus is used in</div><div>a)   Animation          b) Simple object           c) Complex object       d) All of these Ans: Animation</div><div><br> </div><div>        16.   Shadow mask method is usually used in ...............................</div><div><br>a) LCD        b)Raster Scan display  c) Random scan display           d)DVST</div><div><strong><br>Ans </strong>: Raster Scan display</div><div> </div><div>17.Identify the colors produced in beam penetration method.</div><div><br>b)   Red, Green, Blue, White            b)Red, Orange, Yellow, Green c)Red, Green, Blue                                   d) Green, Red, White, Orange</div><div><strong>Ans </strong>: Red, Orange, Yellow, Green</div><div> </div><div><br>18.   An RGB color system with 24 bits os storage per pixel is known as ........................</div><div><br>a.       Color CRT   b)True-color system     c)RGB monitor d)Color- Depth</div><div><strong><br>Ans: </strong>True-color system</div><div>                  </div><div>19.  Identify the features of Vector display</div><div><br>a.High resolution, Jagged lines, Lack in color depth b)Smooth lines, Poor resolution, Black &amp; White c)High resolution, Lack in color depth, Smooth lines d)Inexpensive, monochromatic, smooth lines</div><div><strong>Ans: </strong>High resolution, Jagged lines, Lack in color depth</div><div> </div><div>20.  Identify different type of computer graphics</div><div><br>a.       Monochrome and Color      b)CRT and Flat panel</div><div><br>c)Vector an Raster                         d)Monitors and Hardcopy devices</div><div><strong><br>Ans: </strong>Vector an Raster</div><div> </div><div>21.  DVST stands for ..........................</div><div><br>a)Digital View Storing Table          b)Direct Visual Storage Tube c)Direct View Storage Tube                        c)Digital View Storage Tube</div><div><strong>Ans: </strong>Direct View Storage Tube</div><div> </div><div>22.Refreshing is not needed in DVST because of the presence of .................</div><div><br>a)   Primary gun       b) Flood gun    c) Focusing anode        d)Control grid</div><div><strong><br>Ans: </strong>Flood gun</div><div> </div><div>23.    In DVST, the electron beam from primary electron gun strikes on ..............</div><div><br>b)   Phosphor screen  b) Collector mesh       c)Storage mesh d) Flood gun</div><div><strong><br>Ans: </strong>Storage mesh</div><div> </div><div>24.    The purpose of flood gun in DVST is ...........................</div><div><br>c)   To store the picture pattern        b) To slow down the flood electrons</div><div><br>c) To enable color pixels               d) To focus the electron beam</div><div><strong><br>Ans: </strong>To slow down the flood electrons</div><div> </div><div>25.    Identify the features of DVST from the following.</div><div><br>d)   Monochromatic, Flicker free, Low resolution    b)Monochromatic, Flicker free</div><div><br>c) Color screens, Refresh monitors, High resolution d)Expensive, Low resolution</div><div><strong><br>Ans: </strong>Monochromatic, Flicker free</div><div> </div><div>26.    Video devices with reduced volume, weight and power consumption are collectively known as .........</div><div><br>a)   Light weight monitors    b)Flat-panel displays    c)CRT d) Portable display</div><div><strong><br>Ans: </strong>Flat panel displays</div><div>27.    Pick out the odd one out</div><div><br>a)   LED       b)LCD  c) Gas Discharge tube d) Plasma Panel</div><div><strong><br>Ans: </strong>LCD</div><div> </div><div>28.    Match the following</div><div><br>Part A                                                  Part B</div><div><br>A.      Plasma panel                                        i) Polarizer</div><div><br>B.       DVST                                                  ii) Zinc sulfide</div><div><br>C.       LCD                                                     iii) Dielectric mesh</div><div><br>D.      Thin film electroluminescent               iv)Neon gas</div><div> </div><div>a) A-ii, B-iv, C-i, D-iii       b) A-ii, B-iii, C-iv, D-i</div><div>c) A-iv, B-iii, C-i, D-ii        d) A-i ,B-iv, C-ii, D-iii</div><div><strong>Ans: </strong>A-iv, B-iii, C-i, D-ii</div><div> </div><div>29. ................... is responsible for accessing the frame buffer to refresh the screen.</div><div>a)   Graphics package           b) Video controller      c) CPU             d) Monitor</div><div><strong>Ans: </strong>Video controller</div><div> </div><div>30. Digitizing a picture definition into a set of intensity values is known as .............</div><div>a)   Digitization        b) Scan conversion      c)Refreshing    d) Scanning</div><div><strong>Ans: </strong>Scan conversion</div><div> </div><div>31. ....................... will free the CPU from graphics chores.</div><div>a)   Display processor          b) Monitor       c) ALU            d)Video controller</div><div><strong>Ans: </strong>Display processor</div><div> </div><div>32. Write an example for non-emissive displays</div><div>a)   LED       b)LCD  c) Gas Discharge tube d) Plasma Panel</div><div><strong><br>Ans: </strong>LCD</div><div> </div><div>33. Identify impact printer from the following</div><div><br>a)   Drum Plotter      b)Inkjet printer c)Electrostatic printer  d) Dot-matrix printer</div><div><strong><br>Ans: </strong>Dot-matrix printer</div><div> </div><div>34. Write an example for non-impact printer</div><div><br>a)   Drum plotter      b) Electrostatic printer   c) Laser printer           d) All of the above</div><div><strong><br>Ans: </strong>All of the above</div><div> </div><div>35. Identify the odd one out.</div><div><br>b)   Mouse    b) Keyboard    c) Trackball     d) Space ball</div><div><strong><br>Ans</strong>: Keyboard</div><div><br>36.  GIF stands for ......................</div><div><br>a) Global Image Format     b) Graphics Interchange Format</div><div><br>c) Graphics Image Format  d) None of the above</div><div><strong><br>Ans: </strong>Graphics Interchange Format</div><div> </div><div>37.  The ................ simply reads each successive byte of data from the frame buffer.</div><div><br>a)   Digital Controller           b) Data Controller        c) Display Controller   d) All of above Ans: Display Controller</div><div> </div><div>38. The refresh rate below which a picture flicker is ................ a) 25                 b) 30    c)35     d)60</div><div>Ans: 25</div><div> </div><div>39. ........ used to regulate the flow of elections in CRT ?</div><div><br>b)   Electron gun       b) Focusing anode       c) Control grid d) All of the above Ans: Control grid</div><div> </div><h1>40. The technique used to summarize the financial, statistical, mathematical,scientific and economic data is ?</h1><div>c)    Computer Art    b) Image processing    c) Presentation Graphics         d)None of the above Ans: Presentation Graphics</div><div> </div><div>41.  Graphics and image processing technique used to produce a transformation of one object into another is called</div><div>d)   Animation         b) Morphing    c) Half toning d) None of the above Ans: Animation</div><div> </div><div>42.  The amount of light emitted by the phosphor coating depends on the?</div><div><br>e)    Number of electrons striking the screen</div><div><br>f)     Speed of electrons striking the screen</div><div><br>g)   Distance from the cathode to the screen d)None of above</div><div>Ans: Number of electrons striking the screen</div><div> </div><div>43.     Gray scale is used in ............................</div><div><br>a)   A Monitor that have color capability</div><div><br>b)   A Monitor that have no color capability</div><div><br>c)   Random scan display</div><div><br>d)   Raster scan display</div><div><br>Ans: A Monitor that have no color capability</div><div>44. A wireless mouse works on</div><div><br>a)Infra blue radiation                       b) Infra Red radiation  c) X-rays          d) UV rays Ans: Infrared radiation</div><div><br>45.       Vector graphics is composed of</div><div>a. Pixels           b. Paths           c. Palette`         d. None of these Ans: Paths</div><div> </div><div>46.     Raster graphics are composed of</div><div><br>a.     Pixels       b.     Paths        c.      Palette     d.     None of these Ans: Pixels</div><div> </div><div>47.     EPS image file format is used for</div><div><br>a.                       Vector graphics                        b) Bitmap c) Both a &amp; b   d)                    None of these Ans: Both a &amp; b</div><div> </div><div>48.       TIFF (tagged image file format )are used for</div><div><br>a.      Vector graphics                     b.     Bitmap     c.      Both a &amp; b          d.      None of these Ans: Bitmap</div><div> </div><div>49.    Two dimensional color model are</div><div>a.      RGB and CMKY                  b.      RBG and CYMK c.     RGB and CMYK d.     None Ans: RGB and CMYK</div><div> </div><div>50.       RGB model are used for</div><div><br>a.     Computer display       b.      Printing   c.      Painting   d.      None of these Ans: Computer display</div><div> </div>]]></description>
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         <pubDate>2017-11-06 04:49:56 UTC</pubDate>
         <guid>https://padlet.com/malathimk/CG/wish/203735002</guid>
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         <title>parvadha</title>
         <author>parvadha_ramar</author>
         <link>https://padlet.com/malathimk/CG/wish/203739316</link>
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         <pubDate>2017-11-06 05:23:17 UTC</pubDate>
         <guid>https://padlet.com/malathimk/CG/wish/203739316</guid>
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         <title>mala</title>
         <author></author>
         <link>https://padlet.com/malathimk/CG/wish/204250043</link>
         <description><![CDATA[<div>&nbsp;hfsd<br>fs</div>]]></description>
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         <pubDate>2017-11-07 09:25:34 UTC</pubDate>
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