What is the use of a document camera? MCQ with Answer and Explanation

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What is the use of a document camera?

A. Printing

B. Audio recording

C. Scanning to file only

D. Real-time display of physical documents

Answer: Option D

Solution (By JKSSB Mock Tests)

Also called visualizer.

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Question #1

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What feature do gaming monitors often have for low latency?

A. High refresh rate and low response time

B. Large size only

C. High DPI

D. Built-in scanner

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Correct Answer: Option A

Explanation:
1ms response time is common.

This question belongs to: Computer Computer Hardware

Question #2

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Which printing technology is fastest for text documents?

A. Inkjet

B. Thermal

C. Dot matrix

D. Laser

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Correct Answer: Option D

Explanation:
Laser printers are fast for office use.

This question belongs to: Computer Computer Hardware

Question #3

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What is the full form of CPU in computer hardware?

A. Central Power Unit

B. Control Processing Unit

C. Central Processing Unit

D. Computer Personal Unit

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Correct Answer: Option C

Explanation:
CPU stands for Central Processing Unit, which is the brain of the computer responsible for processing instructions.

This question belongs to: Computer Computer Hardware

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