Which device helps in reducing noise from printers? MCQ with Answer and Explanation

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Which device helps in reducing noise from printers?

A. Higher DPI setting

B. Enclosures or soundproof covers

C. Laser instead of dot matrix

D. All of above

Answer: Option D

Solution (By JKSSB Mock Tests)

Laser is inherently quieter.

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Question #1

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Which hardware is used for 3D scanning?

A. Standard flatbed scanner

B. Laser printer

C. Inkjet printer

D. Specialized 3D scanners

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Correct Answer: Option D

Explanation:
3D scanners create digital models of objects.

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Question #2

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What type of device is a webcam?

A. Input device

B. Processing device

C. Storage device

D. Output device

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Correct Answer: Option A

Explanation:
Webcam captures video input for the computer.

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Question #3

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What manages power states in hardware?

A. OS only

B. BIOS only

C. Printer driver

D. ACPI

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Correct Answer: Option D

Explanation:
Advanced Configuration and Power Interface.

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