Piezoelectric technology is used in some: MCQ with Answer and Explanation

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Piezoelectric technology is used in some:

A. Laser printers

B. Monitors

C. Keyboards

D. Inkjet printers

Answer: Option D

Solution (By JKSSB Mock Tests)

For precise ink droplet control.

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Question #1

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The main limitation of membrane keyboards is:

A. Louder

B. Less durable

C. Less tactile feedback than mechanical

D. Higher cost

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Correct Answer: Option C

Explanation:
Common in standard models.

This question belongs to: Computer Computer Hardware

Question #2

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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.

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Question #3

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What does the term DPI refer to in the context of printers and scanners?

A. Display Pixel Index

B. Dots Per Inch

C. Data Processing Index

D. Digital Print Intensity

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Correct Answer: Option B

Explanation:
DPI stands for Dots Per Inch, measuring the resolution of printers and scanners.

This question belongs to: Computer Computer Hardware

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