1) ----------------- is concerned with all aspects of producing pictures or images
using a computer
Graphics systems
Computer graphics
2) It contains input devices, Central Processing Unit, Graphics Processing Unit, Memory
Frame buffer, and Output devices
a- Graphics systems b- Computer graphics
3) The applications of computer graphics are ----------- ------------------------- ---------------Display of information
Design Simulation and animation User interfaces All
4) The --------------- can be viewed as the core element of a graphics system.
a-
resolution b- frame buffer
5) A ----------is a graphical interactive device, provided by either the window system
or a toolkit.
a-
Joystick
b- Data tablets c- keyboard device d-widget
6) The program can look at the event’s types into function ------------------- and decide what to
do. The operating system queries or polls the event queue regularly and executes the callbacks
corresponding to these events.
Ans: callback
7) Two basic entities must be part of any image-formation process, be it mathematical
or physical: -------------------------a-
Scene
and viewer
b- Camera and Viewer
c- object and viewer.
Each screen point is referred to as .........................
a) Resolution b)Pixel
c)Persistence
d)Dot Pitch
8) The distance from one pixel to the next pixel and also the number of points per
centimeter that can be plotted horizontally and vertically is called ...........
a)Resolution
b)Dot Pitch
c)Pixmap
d)ppi
Ans: Resolution
9) Memory area holding the intensity information of an image is called ..............
a)Refresh buffer
b)Font cache
c)Picture definition
d)Video
controller
Ans: Refresh buffer
10) ....................... will free the CPU from graphics chores.
a) Display processor
Ans: Display processor
b) Monitor
c) ALU
d)Video controller
11) The ................ simply reads each successive byte of data from the frame buffer.
a) Digital Controller
b) Data Controller
c) Display Controller
d) All of above
Ans: Display Controller
12) Vector graphics is composed of---------------------a. Pixels
b. Paths
c. Palette
d. None of these
Ans: Paths
13) Raster graphics are composed of-----------------a. Pixels
b. Paths
c. Palette
d. None of these
Ans: Pixels
14) RGB model are used for ----------------a. Computer display
b. Printing
c. Painting
d. None of these
Ans: Computer display
15) The intersection of three primary RGB color produces
a. White color
b. Black color
c. Magenta color
d. Blue color
16). The simplest output primitive is .............
a) Straight line
b) Straight line segment
c) Point d)Circle
Ans: Point
17) The intensity of a grayscale pixel is expressed within a given range between a minimum
and a maximum
a) 1 and 2
b) 2 and 1
c) 0 and 1
d)0 and 2
Ans: 0 and 1
18) Each pixel has ________basic color components
a. Two or three b. One or two c. Three or four d. None of these
Ans: Three or four
19) The quality of an image depend on
a. No. of pixel used by image b. No. of line used by image
c. No. of resolution used by image d. None
Ans: No. of pixel used by image
20) The basic geometric structures that describes a scene on display is called .................
a) Attributes b) Output primitive c) Lines d) Curves
Ans: Output primitive
21) The basic transformations include
a) Translation
b)Rotation
c)Scaling
d) All of the above
Ans: All of the above
What is rendering?
Rendering is the process of computing a two dimensional image using a combination of
a three dimensional database, scene characteristics, and viewing transformations.
Various algorithms can be employed for rendering, depending on the needs of the
application.
22) A 25 X 80 resolution with 16 colors supports
a. Text mode
b. Graphics mode
c. Both
d. None
23) Which one of the following is not the graphics library is use:
a. FastGL
b. OpenGL
c. DirectX
d. EasyGL