What connects expansion cards to motherboard? MCQ with Answer and Explanation

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What connects expansion cards to motherboard?

A. Slots like PCIe

B. Cables only

C. Power supply

D. Wireless signals

Answer: Option A

Solution (By JKSSB Mock Tests)

Expansion slots allow upgrades.

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Piezoelectric technology is used in some:

A. Keyboards

B. Monitors

C. Laser printers

D. Inkjet printers

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Correct Answer: Option D

Explanation:
For precise ink droplet control.

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Question #2

capacitive touchscreens do not work well with:

A. Fingers

B. Clean surfaces

C. Gloves or styluses without conductivity

D. High resolution

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Correct Answer: Option C

Explanation:
They rely on finger conductivity.

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Question #3

The contrast ratio in monitors indicates:

A. Resolution

B. Difference between brightest and darkest

C. Refresh rate

D. Color count

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Correct Answer: Option B

Explanation:
Higher is better for depth.

This question belongs to: Computer Computer Hardware

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