MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
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Correct Answer: C. 25
Explanation:
The decreases are 5, 10, 15, and 20.
The next decrease is 25, leaving 25.
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Correct Answer: D. 37
Explanation:
Each term is n² + 1 for n = 1, 2, 3, 4, 5.
The next term is 6² + 1 = 37.
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Correct Answer: C. Convert data for transmission between digital devices and communication networks
Explanation:
A modem modulates and demodulates signals for data communication.
Modern devices connect computers or routers to internet services.
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Correct Answer: D. Central Processing Unit
Explanation:
The CPU executes program instructions and coordinates operations.
It is often called the processor.
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Correct Answer: A. metamorphic rock
Explanation:
Metamorphism alters rock minerals and texture without complete melting.
Marble forms from limestone.
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Correct Answer: A. Temporary storage of data and programs currently in use
Explanation:
RAM provides fast working memory for active tasks.
Its contents are usually lost when power is removed.
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Correct Answer: B. The gravitational pull of the Moon and, to a lesser extent, the Sun
Explanation:
The Moon's gravity creates tidal bulges in Earth's oceans.
The Sun modifies the tidal range according to alignment.
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Correct Answer: B. It increases the number of possible combinations
Explanation:
Longer, less predictable passwords are harder to guess or brute-force.
Unique passwords also limit damage from credential leaks.
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Correct Answer: C. Earth rotates on its axis
Explanation:
Earth completes one rotation in about 24 hours.
The side facing the Sun experiences daylight.
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Correct Answer: C. A fraudulent attempt to trick users into revealing sensitive information
Explanation:
Phishing messages imitate trusted sources to steal passwords or financial data.
Users should verify links and requests independently.
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Correct Answer: D. Earth's axial tilt changes sunlight angle during its orbit
Explanation:
Earth's axis is tilted relative to its orbital plane.
This changes day length and solar intensity through the year.
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Correct Answer: D. It contains valuable materials and potentially toxic substances
Explanation:
E-waste can release lead, mercury, and other hazards if mishandled.
Specialized recycling also recovers metals and components.