PPSC Computer Science Full Book test With Answers

PPSC Computer Science Full Book test

Sr. # Questions Answers Choice
1 Plasma device converts Electrical energy into light Light into electrical energy Light into graphical energy None
2 Plasma panel is an _________ device. Emissive Non emissive Expensive None
3 LCD is an _____ device. Emissive None emissive Gas discharge None
4 LCD means Liquid crystal display Liquid chromes data Liquid crystal data None
5 The division of the computer screen into rows and columns the define the no of pixel to display a picture is called. Persistence Resolution Encapsulated post script None
6 What is the name of temporary memory where the graphics data is stored to be displayed on screen. RAM ROM Frame buffer None
7 Printer produce output by either Impact method None impact method Both a and b None
8 Non impact use various techniques to combine three color pigment ___ to produce a range of color patterns. Cyan, magenta and yellow Cyan, white and black Cyan , white and yellow Black, magenta and yellow
9 A example of black and white laser printer is. HP 4000 MS Both a and b None
10 The hardware devices contain Color printer/black white printer Plotters Both a and b None
11 The method which uses array of dots for generating a character is called. Stoke method Bitmap method Star dust method None
12 To generate the characters which are requied. Hardware Software Both a and b None
13 An example of impact deviceis. Electrostatic printer Inkjet printer Line printer Laser printer
14 Graphics data is computed by processor in form of. Electrical singnals. Analog signals Digital signals None
15 Shadow mask method is used in random scan system Raster scan system Both a and b None
16 Beam penetration method is used in Random scan system Raster scan system Both a and b None
17 In which method of CRT convergence problem occur Beam penetration method Shadow mask method Both a and b None
18 Which technique of color CRT is used by production of realistic image. Shadow mask method Beam penetration method Both a and b None
19 Cyan color is produced when the blue and green are activated Eually Unequally Both a and b None
20 Which color is a produced with the blue and red dots. Blue Yellow Magenta White
21 Which color is produced with the green and red cots only Blue Yellow Magnets White
22 A shadow mask CRT has ____ phosphor color dots at each pixel position. 1 2 3 None
23 In beam penetration method of color CRT which layer is red and which is green Outer is red and inner is green Inner is red and outer is green Inner is green and outer is blue None
24 In beam penetration method of color CRT two layer of phosphor coated are. Red and blue Red and green Blue and green None
25 The basic technique for producing color display with a CRT are. Shadow mask and random scan Beam penetration method and shadow mask method Random scan and raster scan None
26 Solid pattern in random scan display is. ______ to fill. Difficult Easy No fill None
27 Random scan system are designed for Line drawing application Pixel drawing application Color drawing application None
28 The resolution of raster can display is. Low High Medium None
29 GKS was developed by the international standards organization National standard organization Both a and b None
30 GKS stand for Graphics kernel system Graphics kernel stnads Generic kernel system None
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