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General Knowledge QUESTION #2631

Question 1901

The NORTHBRIDGE chipset is responsible for managing which of the following?

Hard drives and USB devices (input/output controllers)
High-speed components such as RAM and video cards✔️
The power supply and fan speed control
External peripheral connections like keyboards and mice

Correct Answer Logic:

The Northbridge interconnects high-speed components like RAM and video cards with the CPU. The Southbridge, by contrast, maintains the IO (input/output) controllers like hard drives and USB devices. Together they form the system chipset that manages component communication.

Uploaded by: Fani Warraich

English QUESTION #2746

Question 1902

Choose the CORRECT sentence.

Between you and I✔️
this is wrong.
Between you and me
this is wrong.

Correct Answer Logic:

this is wrong.

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Physics QUESTION #378

Question 1903

The force required to bend the normally straight path of a particle into a circular path is called __________ force.

Traveling
Bending
Centrifugal
Centripetal✔️

Correct Answer Logic:

Centripetal force causes circular motion

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Reading and Writing (Module-1) QUESTION #5405

Question 1904

Earth's atmosphere is bombarded by cosmic dust originating from several sources: short-period comets (SPCs), particles from the asteroid belt (ASTs), Halley-type comets (HTCs), and Oort cloud comets (OCCs). Some of the dust's material vaporizes in the atmosphere in a process called ablation, and the faster the particles move, the higher the rate of ablation. Astrophysicist Juan Diego Carrillo-Sánchez led a team that calculated average ablation rates for elements in the dust (such as iron and potassium) and showed that material in slower-moving SPC or AST dust has a lower rate than the same material in faster-moving HTC or OCC dust. For example, whereas the average ablation rate for iron from AST dust is 28%, the average rate for _______. Which choice most effectively uses data from the table to complete the example?

iron from SPC dust is 20%.
sodium from OCC dust is 100%.
iron from HTC dust is 90%.✔️
sodium from AST dust is 75%.

Correct Answer Logic:

The example illustrates lower ablation in slower-moving AST dust (28% for iron) versus higher ablation in faster-moving HTC dust (90% for iron).

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3617

Question 1905

The 'Stomata' and 'Trichomes' of a leaf are studied during which type of evaluation?

Chemical
Microscopical✔️
Physical
Organoleptic

Correct Answer Logic:

Microscopy is essential for identifying cellular characteristics of organized drugs.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3404

Question 1906

'Thyroxine' ($T_4$) contains which essential trace element?

Iron
Zinc
Iodine✔️
Magnesium

Correct Answer Logic:

Iodine deficiency can lead to goiter (enlarged thyroid).

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Boilers Mechanical Engineering QUESTION #3994

Question 1907

If an Inspector discovers a 'Structural Flaw' that makes a boiler dangerous, they are empowered to:

Give a verbal warning only
Immediately prohibit the use of the boiler✔️
Suggest a paint job
Wait until the next annual inspection

Correct Answer Logic:

Safety is the priority; the Inspector can issue an order to stop operation until repairs are certified.

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Economics QUESTION #1695

Question 1908

The empirical inverse relationship between the inflation rate and the unemployment rate — suggesting a short-run trade-off between the two — is represented by which of the following economic concepts?

Okun's Law
The Phillips Curve✔️
Say's Law
The U-shaped average cost curve

Correct Answer Logic:

The Phillips Curve (A.W. Phillips, 1958) depicts the empirical inverse relationship between unemployment and inflation: when unemployment is low, inflation tends to be high, and vice versa. It represents the short-run trade-off policymakers face. Okun's Law relates unemployment to GDP growth. Say's Law states supply creates its own demand. The short-run Phillips Curve has been challenged by stagflation and the natural rate hypothesis.

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Mathematics QUESTION #1333

Question 1909

A power series solution $y=\sum_{n=0}^\infty a_n x^n$ to an ODE converges in a neighbourhood of an ordinary point $x_0$ up to the distance to the nearest:

Irregular singular point
Singular point✔️
Ordinary point
Boundary point

Correct Answer Logic:

By the theorem on power series solutions, if $x_0$ is an ordinary point of the ODE, the power series solution converges in the interval \(|x-x_0|

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Urdu QUESTION #5075

Question 1910

فصیلِ شب کس شاعر کی تحریر ہے؟

حفیظ جالندھری
محمد حسین آزاد
علامہ اقبال
مرزا ادیب✔️

Correct Answer Logic:

فصیلِ شب مرزا ادیب کی مشہور ادبی تصنیف ہے۔

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Reading and Writing (Module-1) QUESTION #5354

Question 1911

This text is adapted from Ann Petry’s 1946 novel The Street. Lutie is at her home in Harlem. The sunset was casting a radiant glow over the neighborhood. The street is nice in this light, [Lutie] thought. Children were everywhere, playing ball or darting across the pavement in tag. Girls were jumping rope with great rhythm, moving through the center of the double ropes. Which choice best describes what is happening in the text?

Lutie is observing the appearance of the street at a particular time of day and the events occurring on it.✔️
Lutie is annoyed by the noise of children playing games on her street.
Lutie is puzzled by the rules of certain children's games.
Lutie is spending time alone in her apartment because she doesn't want to interact with her neighbors.

Correct Answer Logic:

The passage focuses on Lutie's thoughts about the 'nice' light and her observations of the children playing outside.

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Chemistry QUESTION #427

Question 1912

__________ serve as carriers of heredity from one generation to the other.

Lipids
Caseins
Formaldehydes
Nucleoproteins✔️

Correct Answer Logic:

DNA and RNA (nucleoproteins) carry genetic information

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English QUESTION #4420

Question 1913

Identify the sentence among the following which is punctuated correctly:

The teaching staff asked the principal what time the meeting would start.
The teaching staff asked the principal: 'What time would the meeting start'?
The teaching staff asked the principal, 'What time would the meeting start?'✔️
The teaching staff asked the principal; 'What time would the meeting start?'

Correct Answer Logic:

When reporting direct speech, a comma separates the reporting clause from the quotation, the quoted speech begins with a capital letter, and the question mark goes inside the quotation marks. Option C follows all these rules correctly.

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Agronomy QUESTION #2101

Question 1914

Leghemoglobin in legume root nodules serves the critical function of:

Providing carbon skeleton for amide synthesis and nitrogen export to shoots
Maintaining microaerophilic conditions within the infected nodule cells — binding O₂ at high affinity to supply it to bacteroid respiration while keeping free O₂ concentration low enough to protect the oxygen-sensitive nitrogenase enzyme from irreversible inactivation✔️
Transporting fixed nitrogen (as ureides or amides) from nodule to xylem
Synthesizing ATP required for the high energy demand of the nitrogenase reaction

Correct Answer Logic:

Leghemoglobin (a plant-encoded heme protein, heme supplied by bacteroid) maintains the paradox of nodule metabolism: bacteroids need O₂ for ATP production (nitrogenase is highly energy-demanding: 16 ATP/N₂) but nitrogenase is irreversibly destroyed by O₂. Leghemoglobin buffers O₂ at ~10⁻⁸ M (vs atmospheric ~0.2 mM), supplying O₂ for respiration while keeping free O₂ below inhibitory levels — the pink nodule color indicates active BNF.

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Reading and Writing (Module-1) QUESTION #5447

Question 1915

Ming Tang's 2019 study explains Earth's arcs, ridges that form when an oceanic plate subducts under a continental plate, melts, rises, and bursts through the ____

continents geological
continents: geological✔️
continents: geological
continents. Geological

Correct Answer Logic:

A colon introduces an appositive or clarification; here it separates "continental crust" from "geological structures" though the original text has no punctuation. Given options, colon is least incorrect.

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Security Measures to Maintain Law and Order QUESTION #885

Question 1916

According to Section 7-A, an ASF officer who "willfully neglects" to follow a Law & Order command can be:

Fined 500 Rupees
Dismissed without trial
Court-martialed✔️
Suspended for 2 days

Correct Answer Logic:

Since the 2012 amendment, ASF personnel are subject to the Pakistan Army Act 1952 for serious service offenses, including court-martial.

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English QUESTION #681

Question 1917

In "King Lear," who disguises himself as "Poor Tom"?

Kent
Gloucester
Edgar✔️
Edmund

Correct Answer Logic:

Edgar, the legitimate son of Gloucester, disguises himself as a mad beggar to escape his brother's treachery.

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Mathematics QUESTION #4150

Question 1918

What is the general solution of $y'' - 3y' + 2y = 0$?

$y = c_1e^x + c_2e^{2x}$✔️
$y = c_1e^{-x} + c_2e^{-2x}$
$y = c_1\cos(x) + c_2\sin(x)$
$y = e^x(c_1 + c_2x)$

Correct Answer Logic:

Characteristic: $r^2 - 3r + 2 = 0 \Rightarrow (r-1)(r-2) = 0 \Rightarrow r = 1, 2$. General solution: $y = c_1e^x + c_2e^{2x}$.

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Library Sciences QUESTION #1502

Question 1919

In verbal subject approaches, a pre-coordinated subject heading system combines multiple subject concepts at which stage?

At the time of searching
At the time of indexing✔️
At the time of acquisition
At the time of shelving

Correct Answer Logic:

Pre-coordination occurs at the time of indexing — the cataloguer combines multiple concepts into a single complex heading before the record is stored. Post-coordination allows users to combine terms at the time of searching.

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MCQs Section QUESTION #4908

Question 1920

A President entering the final two years of a second term _____ carry out a legislative program.

likely to be at a severe disadvantage and is often unable to✔️
likely severely disadvantaged and often unable to
liable to be severely disadvantaged and cannot often
liable that he or she is at a severe disadvantage and cannot often

Correct Answer Logic:

Likely to be' is the correct idiom and 'is often unable to' provides the needed parallel auxiliary structure. 'Liable' in options C and D implies legal responsibility, which is the wrong meaning here. Option E (not shown) is structurally incoherent. Option B omits a linking verb, making 'likely' a dangling adjective.

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