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Economics QUESTION #1708
Question 4441
Among the interrelated structural, agronomic, and environmental stressors confronting Pakistan's food system, which is increasingly regarded by food security analysts as the single most existential threat?
  • Highly skewed feudal land ownership patterns limiting smallholder productivity
  • Low agricultural factor productivity β€” in yields per hectare and water use efficiency
  • Intensifying climate-induced water stress, erratic monsoons, and glacial melt disrupting irrigationβœ”οΈ
  • None of these
Correct Answer Logic:
While land inequity and low productivity are longstanding constraints, climate change and water scarcity have emerged as the most acute and growing threat to Pakistan's food security. Pakistan is among the world's most water-stressed nations (per capita water availability has fallen below 1,000 mΒ³ β€” the scarcity threshold). Glacial lake outburst floods (GLOFs), irregular monsoons, and rising temperatures threaten both crop yields and irrigation supplies in the Indus Basin.
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MCQs Section QUESTION #4469
Question 4442
Translate: Ω„Ψ§ΫΩˆΨ± Ψ¨Ψ§ΨΊΨ§Ψͺ Ϊ©ΫŒΩ„Ψ¦Ϋ’ Ω…Ψ΄ΫΩˆΨ± ہے۔ (Lahore is famous for gardens.)
  • Lahore was known for gardens.
  • Lahore will be known for gardens.
  • Lahore were known for gardens.
  • None of theseβœ”οΈ
Correct Answer Logic:
The original sentence is in the present tense ('hai'), while the options provided are in past or future tense. Therefore, 'None of these' is correct.
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Correct Answer Logic:
These are p-block elements
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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3671
Question 4444
The 'Peltate' leaf of 'Podophyllum' is used as a:
  • Vitamin
  • Anticancer and Purgative agentβœ”οΈ
  • Flavor
  • Dye
Correct Answer Logic:
Podophyllum resin is used for warts and some cancers.
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Planning QUESTION #5020
Question 4445
In project appraisal, if Internal Rate of Return (IRR) is 8% and discount rate is 10%, the project is:
  • Economically viable
  • Economically not viableβœ”οΈ
  • Break-even
  • Requires subsidy
Correct Answer Logic:
IRR is the discount rate where NPV = 0. For viability, IRR must exceed the opportunity cost of capital (discount rate). IRR (8%) < discount rate (10%) means project returns less than alternative investmentsβ€”economically unviable without considering non-monetary benefits.
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Civil / Architecture QUESTION #2337
Question 4446
According to Darcy's law, the seepage quantity \(Q\) through a soil sample of cross-sectional area \(A\), length \(L\), head difference \(\Delta h\) and permeability \(k\) is:
  • \(Q = k \cdot A \cdot \dfrac{L}{\Delta h}\)
  • \(Q = k \cdot \dfrac{\Delta h}{L} \cdot A\)βœ”οΈ
  • \(Q = k \cdot \Delta h \cdot L \cdot A\)
  • \(Q = \dfrac{k \cdot A}{\Delta h \cdot L}\)
Correct Answer Logic:
Darcy's law: \(Q = k \cdot i \cdot A\) where the hydraulic gradient \(i = \dfrac{\Delta h}{L}\). Therefore \(Q = k \cdot \dfrac{\Delta h}{L} \cdot A\). This linear relationship is valid for laminar flow where velocity is directly proportional to hydraulic gradient.
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Geography QUESTION #6350
Question 4447
In settlement geography, 'primacy' occurs when:
  • The largest city is disproportionately larger than the second cityβœ”οΈ
  • Cities are evenly distributed by size
  • Small towns dominate the settlement hierarchy
  • Rural population exceeds urban population
Correct Answer Logic:
Primacy describes urban systems where the largest city far exceeds the second city (e.g., Bangkok is over 40 times larger than Thailand's second city). Primate cities dominate economically, politically, and culturally, contrasting with rank-size rule distributions.
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Journalism / Mass Communication QUESTION #6407
Question 4448
Which scientist is credited with first demonstrating that blood circulates through the body via the pumping of the heart, and what role did printing play in spreading this discovery?
  • Galileo (1564–1642) through his astronomical telescopic observations published in 1610
  • Andreas Vesalius (1514–1564), whose work discrediting Galen was published in De Humani Corporis Fabrica (1543) and disseminated through print
  • William Harvey (1578–1657), who demonstrated blood circulation through dissections β€” his findings were published and disseminated internationally through the printing press during the Scientific Revolutionβœ”οΈ
  • Isaac Newton (1642–1727), who incorporated circulation theory into his law of universal gravitation
Correct Answer Logic:

The textbook discusses the Scientific Revolution in the context of how print media accelerated scientific discovery by allowing findings to spread rapidly across Europe. Key scientists mentioned include:

  • Andreas Vesalius (1514–1564): Published De Humani Corporis Fabrica (1543), which discredited Galen's anatomical views and assembled the first accurate human skeleton from cadaver dissections. The textbook also states that Vesalius “found that the circulation of blood resolved from pumping of the heart” β€” though this is more fully attributed to Harvey
  • William Harvey (1578–1657): The textbook explicitly states Harvey “demonstrated that blood circulates via dissections and various other experimental techniques” β€” making Harvey the correct answer for demonstrating blood circulation specifically

The printing press enabled Harvey's findings, published in Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus (1628), to reach the international scientific community, contributing to the rapid accumulation of medical knowledge in the 17th century.

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Nursing QUESTION #9214
Question 4449
A researcher calculates Cronbach's Alpha (\(\alpha = 0.87\)) for a 20-item nursing satisfaction questionnaire. What does this indicate?
  • The tool has poor internal consistency and needs revision
  • The tool has excellent validity and measures what it intends to
  • The tool has good internal consistency reliabilityβœ”οΈ
  • The tool is valid only for populations with similar cultural backgrounds
Correct Answer Logic:
Correct Answer: C β€” Good internal consistency reliability

Cronbach's Alpha (\(\alpha\)) measures the internal consistency of a multi-item scale β€” the degree to which items within the scale measure the same construct.

Interpretation benchmarks:
Cronbach's \(\alpha\)Internal Consistency
\(\alpha \geq 0.90\)Excellent
\(0.80 \leq \alpha < 0.90\)Good
\(0.70 \leq \alpha < 0.80\)Acceptable
\(0.60 \leq \alpha < 0.70\)Questionable
\(\alpha < 0.60\)Poor β€” tool needs revision
\(\alpha = 0.87\) falls in the 'Good' range, meaning the 20 items are cohesively measuring the same concept. Cronbach's Alpha measures reliability, not validity β€” a distinction critical for Head Nurse research appraisal.
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English QUESTION #8587
Question 4450
ZEALOT means:
  • beginner
  • patron
  • fanaticβœ”οΈ
  • murderer
Correct Answer Logic:
Zealot means fanatic.
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Mathematics QUESTION #6975
Question 4451

The integral $\displaystyle\int\dfrac{\sin^2x\cos^2x}{(\sin^5x+\cos^3x\sin^2x+\sin^3x\cos^2x+\cos^5x)^2}dx$ equals (where $C$ is a constant):

  • $\dfrac{1}{1+\cot^3x}+C$
  • $\dfrac{-1}{1+\cot^3x}+C$
  • $\dfrac{1}{3(1+\tan^3x)}+C$βœ”οΈ
  • $\dfrac{-1}{3(1+\tan^3x)}+C$
Correct Answer Logic:

Factor the denominator: $\sin^5x+\cos^5x+\sin^3x\cos^2x+\cos^3x\sin^2x$

$=(\sin^3x+\cos^3x)(\sin^2x+\cos^2x)=\sin^3x+\cos^3x$

So integral $=\displaystyle\int\dfrac{\sin^2x\cos^2x}{(\sin^3x+\cos^3x)^2}dx$. Divide by $\cos^6x$:

$=\displaystyle\int\dfrac{\tan^2x\sec^2x}{(\tan^3x+1)^2}dx$. Let $t=\tan^3x+1$, $dt=3\tan^2x\sec^2x\,dx$:

$=\dfrac{1}{3}\displaystyle\int\dfrac{dt}{t^2}=\dfrac{-1}{3t}+C=\dfrac{-1}{3(1+\tan^3x)}+C$

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Math Physics Chemistry Biology QUESTION #801
Question 4452
Oxidation of \(\text{NO}\) in air gives:
  • \(\text{N}_2\text{H}_4\)
  • \(\text{NH}_4^+\)
  • \(\text{NH}_3\)
  • Noneβœ”οΈ
Correct Answer Logic:
Oxidation of NO in air gives \(\text{NO}_2\): \(2\text{NO} + \text{O}_2 \rightarrow 2\text{NO}_2\). Since \(\text{NO}_2\) is not listed, the answer is None.
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MCQs Section QUESTION #5033
Question 4453
علامہ Ψ§Ω‚Ψ¨Ψ§Ω„ کی Ϊ©Ψ³ فارسی Ϊ©ΨͺΨ§Ψ¨ Ϊ©Ψ§ Ψ―ΫŒΨ¨Ψ§Ϊ†Ϋ اردو Ω…ΫŒΪΊ ΫΫ’ΨŸ
  • ارمغانِ Ψ­Ψ¬Ψ§Ψ²βœ”οΈ
  • ΩΎΫŒΨ§Ω…Ω Ω…Ψ΄Ψ±Ω‚
  • آربِ Ϊ©Ω„ΫŒΩ…
  • Ψ§Ω† Ω…ΫŒΪΊ Ψ³Ϋ’ کوئی Ω†ΫΫŒΪΊ
Correct Answer Logic:
علامہ Ψ§Ω‚Ψ¨Ψ§Ω„ کی فارسی Ϊ©ΨͺΨ§Ψ¨ 'ارمغانِ Ψ­Ψ¬Ψ§Ψ²' Ϊ©Ψ§ Ψ―ΫŒΨ¨Ψ§Ϊ†Ϋ اردو Ψ²Ψ¨Ψ§Ω† Ω…ΫŒΪΊ Ω„Ϊ©ΪΎΨ§ گیا ہے۔
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MBBS QUESTION #10262
Question 4454
Production of concentrated (hypertonic) urine depends on which key physiological mechanism operating in the loop of Henle and collecting duct?
  • The countercurrent multiplier system generating a hypertonic renal medullary interstitium, combined with ADH-regulated water permeability of the collecting ductβœ”οΈ
  • Simple glomerular filtration alone, with no further tubular modification
  • Active water secretion by the distal convoluted tubule
  • Complete, fixed impermeability of the collecting duct to water under all conditions
Correct Answer Logic:
The loop of Henle's countercurrent multiplier establishes a progressively hypertonic medullary interstitium; in the presence of ADH, the collecting duct becomes permeable to water, which is then reabsorbed osmotically into this hypertonic interstitium, producing concentrated urine β€” impaired in both central and nephrogenic diabetes insipidus, though by different mechanisms.
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Professional QUESTION #1819
Question 4455
Under Section 4 of the Civil Servants Act 1973, every civil servant holds office during the pleasure of whom?
  • The Prime Minister
  • The Federal Cabinet
  • The Presidentβœ”οΈ
  • The Chairman Federal Public Service Commission
Correct Answer Logic:
Section 4 of the Civil Servants Act 1973 explicitly states that every civil servant shall hold office during the pleasure of the President. This is an overriding constitutional principle that governs the tenure of all civil servants in the service of Pakistan.
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Nursing QUESTION #9170
Question 4456
A Head Nurse is evaluating nursing staff performance. According to Donabedian's Model of quality care, which component evaluates the process of care?
  • Availability of adequate nursing staff (structure)
  • Whether nursing procedures were followed correctly (process)βœ”οΈ
  • Patient outcomes after discharge (outcome)
  • Number of beds in the facility (structure)
Correct Answer Logic:

Donabedian's Model of Quality (1966) has three components:

ComponentDefinitionExamples
StructureResources and organizational featuresStaff ratios, equipment, facility design
ProcessActivities that constitute health care deliveryAdherence to protocols, documentation, patient assessment techniques
OutcomeChanges in patient health statusMortality rates, patient satisfaction, complication rates

Whether nursing procedures were followed correctly is a process indicator.

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Correct Answer Logic:
Rule 13 second proviso states that for Pakistan Missions abroad, relaxation of citizenship requirement shall not be accorded for a period exceeding one year at a time.
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Academic/Professional (Social Sciences) QUESTION #10141
Question 4458
Following Mead, a child who begins to understand and anticipate the expectations of society as a whole, rather than just specific individuals, has developed the capacity for:
  • Preparatory stage only
  • The 'I' exclusively
  • Taking the role of the 'generalized other'βœ”οΈ
  • Pure biological instinct
Correct Answer Logic:
This describes the developmental step of internalizing the 'generalized other,' representing societal expectations broadly.
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English Literature QUESTION #10751
Question 4459
What is defined as "the study of sentence structure"?
  • Morphology
  • Semantics
  • Phonology
  • Syntaxβœ”οΈ
Correct Answer Logic:
Syntax is the branch of linguistics concerned with the rules and principles governing sentence structure β€” how words combine to form phrases, clauses, and sentences. It examines word order, grammatical relations (subject, object), and hierarchical structure (phrase structure trees). Morphology studies word formation; Semantics studies meaning; Phonology studies sound systems.
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Math Physics Chemistry Biology QUESTION #570
Question 4460
Name the nutrition resulted by feeding on dead and decaying matter.
  • Saprophyticβœ”οΈ
  • Parasitic
  • Symbiotic
  • Both B and C
Correct Answer Logic:
Saprophytic nutrition involves decomposing matter
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