Computer Graphics - Interview Questions and Answers | Basic Computer Knowledge

1.

Identify the features of DVST from the following.

   A.) Monochromatic, Flicker free, Low resolution
   B.) Monochromatic, Flicker free
   C.) Color screens, Refresh monitors, High resolution
   D.) Expensive, Low resolution 

Answer: Option 'B'

​Monochromatic, Flicker free

2.

Which one of the following adapters does not support. All points addressable display?

   A.) VGA
   B.) CGA
   C.) MGA
   D.) EGA

Answer: Option 'D'

EGA

3.

An RGB color system with 24 bits as storage per pixel is known as ____________

   A.) Color CRT 
   B.) True-color system
   C.) Color- Depth
   D.) RGB monitor

Answer: Option 'B'

True-color system

4.

_______ function is used to change the size of a character without changing the height:width ratio

   A.) setTextSize(ts)
   B.) setCharacterHeight(ch)
   C.) setCharacterSize(cs)
   D.) setTextHeight(th)

Answer: Option 'B'

setCharacterHeight(ch)

5.

The transformation in which an object is moved from one position to another in circular path around a specified pivot point is called

   A.) Rotation
   B.) Shearing
   C.) Translation
   D.) Scaling

Answer: Option 'A'

Rotation

6.

Which of the following statement is true?

   A.) Request, sample and event are the three basic modes of input
   B.) A mouse is typically a device for inputting an absolute position on the screen
   C.) Special graphics hardware support is essential for providing menu-driven user interface to an application
   D.) Keyboard is a device ideally suited for use in sample mode

Answer: Option 'A'

Request, sample and event are the three basic modes of input

7.

All the following hidden surface algorithms employ image space approach except

   A.) scan line method 
   B.) depth sort method
   C.) depth buffer method
   D.) back face removal 

Answer: Option 'D'

​back face removal 

8.

Graphics programmes are those which create?

   A.) Designs
   B.) Images
   C.) Pictures
   D.) All of the above

Answer: Option 'C'

Pictures

9.

__________ is the ratio of horizontal points to vertical points necessary to produce equal length lines in both direction.

   A.) Dot Pitch
   B.) Resolution
   C.) Aspect Ratio
   D.) Height-Width Ratio 

Answer: Option 'C'

Aspect Ratio

10.

Identify the colors produced in beam penetration method.

   A.) Red, Green, Blue, White
   B.) Green, Red, White, Orange 
   C.) Red, Orange, Yellow, Green
   D.) Red, Green, Blue 

Answer: Option 'C'

Red, Orange, Yellow, Green

11.

The purpose of refreshing a CRT is _________

   A.) To avoid flickering
   B.) To maintain steady picture
   C.) To avoid fading of pixels
   D.) All of the above

Answer: Option 'A'

To avoid flickering

12.

Graphics and image processing technique used to produce a transformation of one object into another is called?

   A.) Half toning
   B.) Morphine
   C.) Animation
   D.) None of above

Answer: Option 'C'

​Animation

13.

Each screen point is referred to as ____________

   A.) Resolution
   B.) Persistence
   C.) Pixel
   D.) Dot Pitch  

Answer: Option 'B'

​Persistence

14.

Computer Graphics models are now commonly used for making?

   A.) Television shows
   B.) Music Videos
   C.) Motion pictures
   D.) All of the above

Answer: Option 'D'

All of the above

15.

The purpose of display processor is __from the graphics routine task?

   A.) To free the secondary memory
   B.) to free the CPU
   C.) to free the main memory
   D.) none of these

Answer: Option 'B'

​to free the CPU

16.

RGB model are used for

   A.) Computer display
   B.) Painting
   C.) Printing
   D.) None of these

Answer: Option 'A'

Computer display

17.

Interlaced refresh procedure is allowed in __________

   A.) LCD
   B.) Raster scan display
   C.) DVST
   D.) Random scan display

Answer: Option 'B'

​Raster scan display

18.

Which technique of color CRT is used for production of realistic image

   A.) Beam penetration
   B.) Shadow mask
   C.) both A & B
   D.) None of above 

Answer: Option 'B'

Shadow mask

19.

Obliquee projection with an angle of 450 to the horizontal plane is called as?

   A.) Cabinaet projection
   B.) Cavalier projection
   C.) Isometric projection
   D.) None of these

Answer: Option 'B'

Oblique projection is a simple type of graphical projection used for producing pictorial, two-dimensional images of three-dimensional objects

20.

The smallest addressable screen element is called?

   A.) Pixel
   B.) voltage level
   C.) color information
   D.) Graph

Answer: Option 'A'

Pixel


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