Which device uses stepper motors for movement? MCQ with Answer and Explanation

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Which device uses stepper motors for movement?

A. Dot matrix printers and scanners

B. CPUs

C. RAM modules

D. LED monitors

Answer: Option A

Solution (By JKSSB Mock Tests)

Precise mechanical positioning.

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Question #1

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The main reason for using multiple fans in a PC case is:

A. Improved airflow and cooling

B. Noise reduction

C. Power saving

D. Aesthetics only

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Correct Answer: Option A

Explanation:
Prevents thermal throttling.

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Question #2

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Which device uses toner for printing?

A. Inkjet

B. Laser

C. Dot Matrix

D. Thermal

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Correct Answer: Option B

Explanation:
Laser printers use toner powder.

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Question #3

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Laser printers use which type of memory for buffering print jobs?

A. Flash memory only

B. No memory needed

C. Printer's internal RAM

D. ROM

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Correct Answer: Option C

Explanation:
Printer RAM helps in handling complex print jobs.

This question belongs to: Computer Computer Hardware

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