MCQ | Graphics Hardware and Display Devices in Computer Graphics

Multiple choice questions and answers (MCQ) based on the graphics hardware and display devices in computer graphics with 4 choices, correct answer and explanation.
Submitted by Monika Sharma, on June 12, 2020

Question 1: Which of the following is defined by the number of pixels present in the frame buffer?

  1. Resolution
  2. Depth
  3. Both a. and b.
  4. None of the above

Answer: a. Resolution

Explanation:

The number of pixels in the frame buffer determines the resolution of the image.


Question 2: Consider the following statement:

"The limited range of number of points that can be displayed without overlap on a CRT."

Determine whether the given condition is true or false.

  1. True
  2. False
  3. Can't be determined

Answer: a. True

Explanation:

The given statement is true as maximum number of points can be displayed without overlap on a CRT, and is called as Resolution.


Question 3: Which of the following defines the mapping of points from some domain to bits?

  1. Pix-map
  2. Graph
  3. Bitmap
  4. All of the mentioned

Answer: c. Bitmap

Explanation:

Bit map frame buffer is always 1 bit per pixel and it defines the mapping of points from domain to bits. It is also referred to as a bit array.


Question 4: Which of the following statements best define Scan conversion?

  1. The process of digitizing a known picture definition into a set of pixel-intensity for storage in the frame buffer.
  2. Encoding the pixels into bits
  3. Converting the draw able image into a graphical image
  4. None of the above

Answer: a. The process of digitizing a known picture definition into a set of pixel-intensity for storage in the frame buffer.

Explanation:

The process of digitizing a given picture definition into a set of pixel-intensity for storage in the frame buffer is called Scan conversion.


Question 5: In which of the following parts of the cathode ray tube, is a huge amount of heat released to the cathode by directing a current through a coil of wire?

  1. Electron gun
  2. Phosphorus coated tube
  3. Filament
  4. Anode and cathode

Answer: c. Filament

Explanation:

In CRT, the filament is responsible to supply power when an electron gun release the electron then it focusing to hit the phosphorus screen to display the picture.







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