Computer Graphics Questions & Answers – Input Devices – 2

This section of our 1000+ Computer Graphics multiple choice questions focuses on Input Devices.

1. __________ allows screen positions to be selected with the touch of a finger.
a) Touch panels
b) Image scanner
c) Light pen
d) Mouse
View Answer

Answer: a
Explanation: None.

2. What is the disadvantage of the light pen?
a) It’s shape
b) They cannot detect positions
c) Accurate reading
d) Cannot detect positions within black areas
View Answer

Answer: d
Explanation: light pen requires special implementations and sometimes gives false reading due to background lighting in a room.

3. ________ is used in graphics workstation as input devices to accept voice commands.
a) Touch panels
b) Speech recognizers
c) Only a
d) All of the mentioned
View Answer

Answer: b
Explanation: Through speech recognizers user can give voice commands.

4. What voice the use of voice system?
a) To initiate graphics operation
b) To enter data
c) Neither a nor b
d) Both a and b
View Answer

Answer: d
Explanation: The voice system input can be used to initiate graphics operations or to enter data.
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5. When a voice command is given, the system searches the _____________for a frequency-pattern match.
a) Memory
b) Input data
c) Dictionary
d) Hard disk
View Answer

Answer: c
Explanation: System searches the dictionary for frequency pattern matching.

6. The device which is designed to minimize the background sound is
a) Microphone
b) Digitizers
c) Data glove
d) Joy stick
View Answer

Answer: a
Explanation: Microphone is designed to minimize the background sound.

7. The quality of a picture obtained from a device depends on
a) Dot size
b) Number of dots per inch
c) Number of lines per inch
d) All of the mentioned
View Answer

Answer: d
Explanation: quality depends on these attributes.

8. Which of the following device is not the input device?
a) Trackball and space ball
b) Data glove
c) Only d
d) Impact printers
View Answer

Answer: c
Explanation: printer is an output device.
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9. Which device contains thumbwheel, trackball and a standard mouse ball?
a) Z mouse
b) Joystick
c) Mouse
d) Trackball
View Answer

Answer: a
Explanation: These 3 buttons are the Z mouse features.

10. Virtual reality, CAD, and animations are the application of
a) Z mouse
b) Digitizers
c) Data tablets
d) Image scanners
View Answer

Answer: a
Explanation: Application of Z mouse includes virtual reality, CAD, and animations.
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Sanfoundry Global Education & Learning Series – Computer Graphics.

To practice all areas of Computer Graphics, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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