Which component is responsible for fan control in a PC? MCQ with Answer and Explanation

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Which component is responsible for fan control in a PC?

A. RAM

B. CPU only

C. BIOS/UEFI

D. Hard disk controller

Answer: Option C

Solution (By JKSSB Mock Tests)

BIOS manages hardware including cooling.

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Question #1

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Which port is used for high-speed data transfer in modern systems?

A. Parallel port

B. Serial port

C. USB 3.0 or Thunderbolt

D. PS/2 port

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Correct Answer: Option C

Explanation:
USB 3.x and Thunderbolt offer high speeds.

This question belongs to: Computer Computer Hardware

Question #2

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What connects expansion cards to motherboard?

A. Cables only

B. Slots like PCIe

C. Power supply

D. Wireless signals

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Correct Answer: Option B

Explanation:
Expansion slots allow upgrades.

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Question #3

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What is the main difference between active and passive matrix displays?

A. No difference

B. Active uses more power always

C. Passive is always better

D. Active has transistors per pixel for better quality

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Correct Answer: Option D

Explanation:
TFT active matrix is standard in modern LCDs.

This question belongs to: Computer Computer Hardware

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