Computer Hardware MCQs with Answers and Explanations

Question #341

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The ink level monitoring in printers uses:

A. Weight measurement

B. Sensors or software estimation

C. Manual check only

D. Color detection

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Correct Answer: Option B

Explanation:
Alerts users.

This question belongs to: Computer Computer Hardware

Question #342

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Which input device is essential for accessibility?

A. Laser printers

B. Standard only

C. High-end monitors

D. Special keyboards, mice, or voice recognition

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Correct Answer: Option D

Explanation:
For users with disabilities.

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Question #343

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What is the advantage of M.2 SSD form factor?

A. Large physical size

B. Higher power use

C. Compact size and high speed

D. Slower than SATA

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Correct Answer: Option C

Explanation:
Ideal for thin devices.

This question belongs to: Computer Computer Hardware

Question #344

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Flicker-free technology in monitors reduces:

A. Brightness

B. Contrast

C. Eye strain by eliminating PWM flicker

D. Resolution

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Correct Answer: Option C

Explanation:
Better for health.

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Question #345

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A MICR reader is specialized for:

A. Banking cheques

B. Photos

C. General documents

D. Barcodes

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Correct Answer: Option A

Explanation:
Magnetic ink characters.

This question belongs to: Computer Computer Hardware

Question #346

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The integrated graphics in CPU shares:

A. System RAM

B. Dedicated VRAM

C. HDD space

D. No memory

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Correct Answer: Option A

Explanation:
For cost-effective setups.

This question belongs to: Computer Computer Hardware

Question #347

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What is the purpose of a calibration report for monitors?

A. Factory or user verified color accuracy

B. Size measurement

C. Power consumption

D. Speed test

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Correct Answer: Option A

Explanation:
Professional use.

This question belongs to: Computer Computer Hardware

Question #348

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Which technology allows printers to connect via mobile apps?

A. Serial

B. Parallel cable

C. USB only

D. Wi-Fi Direct or cloud services

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Correct Answer: Option D

Explanation:
Modern convenience.

This question belongs to: Computer Computer Hardware

Question #349

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The pipeline in CPU refers to:

A. Memory pipeline

B. Instruction processing stages

C. Graphics pipeline

D. Power pipeline

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Correct Answer: Option B

Explanation:
Superscalar architecture.

This question belongs to: Computer Computer Hardware

Question #350

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A handheld scanner is best for:

A. Photo negatives

B. Batch processing

C. Scanning irregular or large objects

D. High quality flat documents

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Correct Answer: Option C

Explanation:
Flexibility.

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Question #351

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What is 'power gating' in processors?

A. Shutting off unused parts to save power

B. Increasing voltage

C. Display control

D. Memory management

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Correct Answer: Option A

Explanation:
Energy efficiency.

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Question #352

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The standard color depth for high-quality monitors is:

A. 1-bit

B. 2-bit

C. 8-bit or 10-bit per channel

D. 4-bit

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Correct Answer: Option C

Explanation:
Millions of colors.

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Question #353

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Which device is used for signature capture?

A. Keyboard

B. Scanner

C. Electronic signature pad

D. Standard mouse

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Correct Answer: Option C

Explanation:
Digital transactions.

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Question #354

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What causes coil whine in hardware?

A. Printer motor

B. Monitor issue

C. Vibrations in inductors under load

D. Keyboard switches

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Correct Answer: Option C

Explanation:
Common in GPUs/PSUs.

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Question #355

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The main benefit of 32GB+ RAM is:

A. Scanning

B. Printing

C. Basic web browsing

D. Heavy multitasking and content creation

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Correct Answer: Option D

Explanation:
Future-proofing.

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Question #356

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What is the function of a print head in inkjet?

A. Scan image

B. Eject ink droplets

C. Feed paper

D. Heat toner

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Correct Answer: Option B

Explanation:
Core printing mechanism.

This question belongs to: Computer Computer Hardware

Question #357

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FreeSync and G-Sync are technologies for:

A. Color management

B. Input lag reduction only

C. Adaptive refresh rate synchronization

D. Power saving

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Correct Answer: Option C

Explanation:
Smooth gaming experience.

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Question #358

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A trackpoint is found in:

A. Desktops only

B. Monitors

C. Printers

D. Some laptop keyboards

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Correct Answer: Option D

Explanation:
Pointing stick for navigation.

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Question #359

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What does 'silicon lottery' refer to in hardware?

A. Variation in CPU overclocking potential

B. RAM quality

C. Printer luck

D. Monitor lottery

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Correct Answer: Option A

Explanation:
Manufacturing differences.

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Question #360

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The best way to clean a keyboard is:

A. Water wash

B. Vacuum only

C. Compressed air and isopropyl alcohol carefully

D. No cleaning

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Correct Answer: Option C

Explanation:
Prevents damage.

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