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MCQ | Scan Conversion in Computer Graphics

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

Question 1: Which of the following best defines Scan Conversion in computer graphics?

1. It is a process of representing graphics objects as a collection of pixels
2. It is a process of converting colored images to grayscale images.
3. It is a process of converting handmade drawing to computer pictures through a scanner
4. None of the above

Answer: a. It is a process of representing graphics objects as a collection of pixels

Explanation:

All the other definitions are wrong as per defining the Scan Conversion in computer graphics.

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Question 2: What is the main reason behind developing algorithms for scan conversion?

1. The algorithms can generate graphics objects at a faster rate here.
2. Here, the memory can be efficiently used
3. Both a. and b.
4. None of the above

Answer: c. Both a. and b.

Explanation:

The algorithms are being developed in the Scan conversion technique because of its faster rate of generation of objects and efficient use of memory.

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Question 3: Which among the following objects can be scan converted?

1. Point, Line, Sector, Arc
2. Characters
3. Ellipse, Rectangle, Polygons
4. All of the above

Answer: d. All of the above

Explanation:

All the mentioned objects can be scan converted. Hence the correct option is: d. All of the above.

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Question 4: Stare whether the following statement is true or false
"The term pixel is a short form for Electronic Picture."

1. True
2. False

Answer: b. False

Explanation:

The term pixel is not the short form for electronic picture. Rather, it is an abbreviation for 'Picture Element'.

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Question 5: Fill in the blank:
"Each pixel has some intensity value which is represented in memory of the computer. This memory part is known as the ____________."

1. Frame Buffer
2. Random Access Memory (RAM)
3. Picture Memory
4. None of the above

Answer: a. Frame Buffer

Explanation:

Frame buffer is a storage area for storing pixel values.

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