What is the primary function of a scanner's light source? MCQ with Answer and Explanation

What is the primary function of a scanner's light source?
A. Cool the device
B. Illuminate document for sensor capture
C. Print image
D. Store data
Answer: Option B
Solution (By JKSSB Mock Tests)
CCD or CIS sensors need light.

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Practice More Computer Hardware Questions

Question #1
What does 'hyper transport' or 'infinity fabric' refer to?
A. Storage protocol
B. AMD's high-speed CPU interconnect
C. Monitor cable
D. Intel technology

Correct Answer: Option B


Explanation:
Internal CPU communication.

This question belongs to: Computer Computer Hardware
Question #2
What does 'silicon lottery' refer to in hardware?
A. Variation in CPU overclocking potential
B. Printer luck
C. RAM quality
D. Monitor lottery

Correct Answer: Option A


Explanation:
Manufacturing differences.

This question belongs to: Computer Computer Hardware
Question #3
The main advantage of vector graphics output in plotters is:
A. Color photos
B. Fast text
C. Low cost
D. Scalability without loss of quality

Correct Answer: Option D


Explanation:
Precise lines for technical drawings.

This question belongs to: Computer Computer Hardware