Computer Graphics MCQ-7

Q.1 How many matrices are required to rotate an object about an arbitrary point (x,y)?

• A) 2
• B) 3
• C) 4
• D) 5

Q.2 In a vector scan display, the phosphor must be refreshed at least how many times per second to avoid flicker?

• A) 18
• B) 35
• C) 40
• D) 30

Q.3 In a raster scan display, the display image is stored in the refresh buffer in the form of?

• A) 0s
• B) 1s
• C) 1s & 0s
• D) None of these

Q.4 Which of the following techniques is used for producing images on a CRT (Cathode Ray Tube)?

• A) Vector scan
• B) Raster scan
• C) Both A & B
• D) None of these

Q.5 What is the full expansion of the DDA algorithm in computer graphics?

• A) Digital Difference analyzer
• B) Direct Difference analyzer
• C) Digital Differential analyzer
• D) Data Difference analyzer

Q.6 If the direction of rotation is the Z-axis, the direction of position for a positive rotation is typically?

• A) y to x
• B) z to x
• C) x to y
• D) y to z

Q.7 Computer graphics allow for effective communication through which of the following?

• A) Pictures
• B) Charts
• C) Diagrams
• D) All of these

Q.8 What does the acronym GPU stand for?

• A) Graphics Process Utilizer
• B) Graphics Process Unicode
• C) Graphic Process Unit
• D) None of these

Q.9 Which of the following is generally NOT classified as a primary graphics input/output device?

• A) Scanners
• B) Video Game
• C) Joystick
• D) None of these

Q.10 By whom and in which year was the CGA (Color Graphics Adapter) introduced?

• A) Microsoft 1991
• B) Microsoft 1981
• C) IBM 1981
• D) None of these

Q.11 Which of the following display types requires the lowest amount of memory for image storage?

• A) Random scan
• B) Raster Scan
• C) Both A & B
• D) None

Q.12 Raster Scan displays primarily utilize which type of tubes?

• A) VST
• B) DVST
• C) CRT
• D) None

Q.13 Which method is used interactively to construct and position straight lines, arcs, and circles on a screen?

• A) Rubber band method
• B) Gravity Method
• C) Dragging
• D) None

Q.14 A method used to test lines for total clipping in algorithms like Cohen-Sutherland is equivalent to which logical operation?

• A) Logical XOR
• B) Logical OR
• C) Logical AND
• D) Both A & B

Q.15 Computer graphics can consist of which of the following?

• A) Drawing
• B) Photographs
• C) Simulation
• D) All of these

Q.16 What does the acronym CAD stand for in engineering and design?

• A) Drawing
• B) Computer art design
• C) Computer-aided design
• D) None

Q.17 Which of the following are essential components of an interactive computer graphics system?

• A) Display controller
• B) Frame buffer
• C) Monitor
• D) All of these

Q.18 Which algorithm divides 2D space into 9 regions where only the middle region is visible?

• A) Cohen Sutherland
• B) Liang Barsky
• C) Sutherland Hodegeman
• D) H-L-N

Q.19 In digital displays, a higher number of pixels generally results in a ________?

• A) Worst image
• B) Big image
• C) Better image
• D) Smaller image

Q.20 In clipping algorithms, what is the region code of a point located inside the viewing window?

• A) 1111
• B) 0000
• C) 1000
• D) 0001