What causes dead pixels in monitors? MCQ with Answer and Explanation

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What causes dead pixels in monitors?

A. Low brightness

B. Manufacturing defect in LCD pixels

C. High usage

D. Wrong cable

Answer: Option B

Solution (By JKSSB Mock Tests)

Non-functional sub-pixels.

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Question #1

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A common resolution for business projectors is:

A. XGA or WXGA

B. SDTV

C. Only 4K

D. VGA only

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Correct Answer: Option A

Explanation:
Suitable for presentations.

This question belongs to: Computer Computer Hardware

Question #2

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The main purpose of a wrist rest on keyboards is:

A. Ergonomics to prevent strain

B. Increase speed

C. Wireless charging

D. RGB effect

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Correct Answer: Option A

Explanation:
Comfort during long typing.

This question belongs to: Computer Computer Hardware

Question #3

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What is the purpose of a calibration report for monitors?

A. Power consumption

B. Size measurement

C. Speed test

D. Factory or user verified color accuracy

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Correct Answer: Option D

Explanation:
Professional use.

This question belongs to: Computer Computer Hardware

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