Computer Graphics MCQs with Answers
Practice important Computer Graphics MCQs with answers and explanations.
Chapter: 4
Q101:
Which graphics mode supports 640x480 resolution and 16 colors?
A. Mode 13
B. Mode 6
C. Mode 18
D. Mode 3
Correct Answer:
C
Chapter: 4
Q102:
Which of the following supports 320x200 resolution with 8-bit colors?
A. Mode 3
B. Mode 6
C. Mode 19
D. Mode 7
Correct Answer:
C
Chapter: 4
Q103:
Mode 6 represents pixels using ________.
A. 2 bytes per pixel
B. 1 byte per character
C. 1 bit per pixel
D. 4 bits per pixel
Correct Answer:
C
Chapter: 4
Q104:
In text mode, how many bytes are used to represent one character on the screen?
A. 1
B. 2
C. 3
D. 4
Correct Answer:
B
Chapter: 4
Q105:
In text mode, the attribute byte controls the ________.
A. Font size
B. Location of character
C. Color of character
D. Speed of rendering
Correct Answer:
C
Chapter: 4
Q106:
Which part of display adapter converts ASCII to actual character on screen?
A. VDU
B. VGA
C. Character Generator
D. RAM
Correct Answer:
C
Chapter: 4
Q107:
The character generator of MA uses ______ pixels per scan line.
A. 8
B. 9
C. 14
D. 16
Correct Answer:
C
Chapter: 4
Q108:
In VGA, how many pixels are used for character width?
A. 8
B. 9
C. 14
D. 16
Correct Answer:
B
Chapter: 4
Q109:
The character generator in older adapters is located in ______.
A. ROM
B. RAM
C. Cache
D. Disk
Correct Answer:
A
Chapter: 4
Q110:
In VGA, character generator data is stored in ______.
A. ROM
B. Display Plane 2
C. BIOS
D. Page file
Correct Answer:
B
Chapter: 4
Q111:
How many character sets can VGA support simultaneously?
A. 1
B. 2
C. 4
D. 8
Correct Answer:
D
Chapter: 4
Q112:
The active character set is selected using ________.
A. Attribute byte
B. ASCII value
C. Scan line number
D. Color value
Correct Answer:
A
Chapter: 4
Q113:
Which component in the attribute byte allows a character to blink?
A. Bit 5
B. Bit 6
C. Bit 7
D. Bit 4
Correct Answer:
C
Chapter: 4
Q114:
In text mode, the background color is defined in the ________.
A. ASCII byte
B. Foreground bits
C. Attribute byte
D. Scan lines
Correct Answer:
C
Chapter: 4
Q115:
In graphics mode, how many colors can a pixel have in Mode 13h?
A. 0-1
B. 0-15
C. 0-255
D. Unlimited
Correct Answer:
C
Chapter: 4
Q116:
In graphics mode, pixels have ________.
A. Only foreground color
B. Only background color
C. No color
D. One discrete color only
Correct Answer:
D
Chapter: 4
Q117:
Which interrupt is used to set video mode in BIOS?
A. INT 21H
B. INT 13H
C. INT 10H
D. INT 1AH
Correct Answer:
C
Chapter: 4
Q118:
To set Mode 13h in BIOS, which value is moved to AL register?
A. 03h
B. 10h
C. 13h
D. 19h
Correct Answer:
C
Chapter: 4
Q119:
To write a pixel in BIOS, which service number is used?
A. 0Ah
B. 0Ch
C. 0Fh
D. 10h
Correct Answer:
B
Chapter: 4
Q120:
In BIOS pixel writing, what is stored in register CX?
A. Color number
B. Page number
C. Column number
D. Row number
Correct Answer:
C