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General Science and Ability QUESTION #191

Question 521

Maximum amount of carbohydrates are obtained from:

Nuts
Plant oil
Whole grain food✔️
None of these

Correct Answer Logic:

Whole grains are primary sources of complex carbohydrates.

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Accounting & Finance QUESTION #9628

Question 522

In the LIFO method of stock valuation compared to FIFO, which of the following is correct during a period of rising prices?

LIFO produces a higher closing stock value and lower cost of sales
LIFO produces a lower gross profit and a lower closing stock value than FIFO✔️
LIFO produces the same gross profit as FIFO because total cost is the same
LIFO and FIFO only differ in the treatment of opening stock

Correct Answer Logic:

Under rising prices, LIFO assigns the most recent (higher) costs to cost of sales, resulting in a higher COGS and thus lower gross profit. Conversely, the older (lower) costs remain in closing stock, giving a lower closing stock value. FIFO does the opposite: lower costs to COGS, higher gross profit, and higher closing stock.

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Biology Zoology Botany QUESTION #1368

Question 523

The process of transcription involves the synthesis of:

RNA from DNA✔️
Protein from RNA
DNA from RNA
RNA from protein

Correct Answer Logic:

Transcription is the process by which a segment of DNA is used as a template to synthesise a complementary RNA molecule (specifically mRNA) by the enzyme RNA polymerase. The central dogma of molecular biology is: DNA → (transcription) → RNA → (translation) → Protein. DNA from RNA would be reverse transcription.

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Security Measures to Maintain Law and Order QUESTION #873

Question 524

Under Section 7, if a disaster occurs, ASF's power to "search and seize" extends to:

Only passengers
Anyone within aerodrome limits✔️
Only airline staff
Only suspected criminals

Correct Answer Logic:

The authority to maintain order and conduct searches applies to "any person" within the limits of the aerodrome.

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Nursing QUESTION #9178

Question 525

The Five-Star Doctor concept was proposed by WHO for health professionals. For nurses, the equivalent Five-Star Nurse roles include care provider, communicator, and which others?

Administrator, teacher, and researcher✔️
Supervisor, auditor, and manager
Consultant, controller, and inspector
Pharmacist, technician, and designer

Correct Answer Logic:

The Five-Star Nurse concept (adapted from WHO's Five-Star Doctor model) identifies five key roles for community nurses:

Care Provider — direct clinical care
Communicator — therapeutic communication with patients and families
Community Leader / Decision-Maker — community mobilization
Teacher/Health Educator — health promotion and education
Administrator/Manager — managing nursing services and resources

Some frameworks also include Researcher. A Charge/Head Nurse must embody all these roles for comprehensive community health nursing practice.

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Accounting & Finance QUESTION #6210

Question 526

In the audit of a 'Bank Overdraft' of $Rs. 10,250$, the assertion that it is 'repayable on demand' is a matter of:

Existence
Occurrence
Presentation and Disclosure✔️
Valuation

Correct Answer Logic:

Classifying an overdraft as a current liability implies it is repayable on demand, which is a 'Presentation and Disclosure' assertion.

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General Knowledge QUESTION #8621

Question 527

Which tribal agency of FATA (Federally Administered Tribal Areas) is the largest by area?

South Waziristan✔️
North Waziristan
Orakzai
Bajaur

Correct Answer Logic:

South Waziristan is the largest agency.

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Security Measures to Maintain Law and Order QUESTION #859

Question 528

An AD ASF's duty toward a "Whistleblower" within the Force is to:

Arrest them
Protect their identity✔️
Ignore them
Publicize their name

Correct Answer Logic:

Ethical leadership involves protecting those who report internal corruption or security breaches to maintain the Force's integrity.

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Math Physics Chemistry Biology QUESTION #7745

Question 529

The genetic information inherited from your parents for a specific trait like hair color is called your:

Genotype✔️
Karyotype
Phenotype
None

Correct Answer Logic:

Genotype refers to the actual alleles present (e.g., BB, Bb, bb). Phenotype is the physical expression. Karyotype is the chromosome set.

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Mathematics QUESTION #1266

Question 530

For $f(x,y)=xy-2x$ on the triangular region with vertices $(0,0)$, $(4,0)$, $(0,4)$, the absolute minimum value is:

$-8$✔️
$0$
$-4$
$4$

Correct Answer Logic:

On boundary edge from $(0,0)$ to $(4,0)$ ($y=0$): $f=-2x$, minimum at $x=4$: $f=-8$. Interior critical point: $f_x=y-2=0\Rightarrow y=2$; $f_y=x=0\Rightarrow x=0$, giving $f(0,2)=0$. Checking all boundaries, the absolute minimum is $-8$ at $(4,0)$.

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Dairy Food Science and Technology QUESTION #5988

Question 531

The concentration of lactose in cow's milk ($\approx 4.7\%$) controls milk yield because:

Lactose concentration in milk is independent of blood osmolarity
Milk yield is primarily determined by lactose synthesis in the mammary gland, because water follows osmotically; cows that synthesize more lactose produce more milk✔️
Blood glucose directly determines cheese yield
Lactose synthesis is inhibited by mastitis because inflammation increases blood lactose

Correct Answer Logic:

Lactose is synthesized by lactose synthase ($\beta$-1,4-galactosyltransferase $+$ $\alpha$-lactalbumin) in the Golgi apparatus. Lactose is the main osmotic driver — water follows osmotically into the alveolar lumen. Mastitis reduces $\alpha$-lactalbumin synthesis, impairing lactose synthase activity and reducing milk yield.

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Physics and Math QUESTION #780

Question 532

$R = ?$ (circumradius of a triangle)

$\dfrac{abc}{4\Delta}$✔️
$abc$
$\dfrac{abc}{\Delta}$
None

Correct Answer Logic:

The circumradius of a triangle is $R = \dfrac{abc}{4\Delta}$, where $\Delta$ is the area of the triangle.

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Administration QUESTION #9600

Question 533

A supply chain manager implements an AI-driven demand forecasting system that integrates point-of-sale data, social media sentiment, and weather patterns. Compared to traditional time-series forecasting, which specific forecasting characteristic is most improved, and what new risk is introduced?

Accuracy of long-range forecasts is most improved; new risk is data privacy regulation compliance
Responsiveness to causal drivers of demand (beyond historical patterns) is most improved, enabling detection of demand shifts before they appear in sales data; new risk is model opacity ('black box' problem) where managers cannot explain or audit forecast logic, reducing trust and creating accountability gaps✔️
Speed of forecast generation is most improved; new risk is over-reliance on technology reducing human judgment
Forecast bias is most improved through algorithmic objectivity; new risk is that AI systems amplify existing data biases rather than correcting them

Correct Answer Logic:

AI/ML forecasting improves causal intelligence — it captures leading indicators (social sentiment, weather) that precede demand changes, addressing the fundamental weakness of pure time-series models that only extrapolate past patterns. The critical new risk is model opacity: complex neural networks cannot explain their predictions in ways humans can verify or challenge, creating accountability failures when forecasts are wrong and reducing managerial confidence in overriding automated recommendations — the 'automation bias' and 'black box' risks.

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General Abilities QUESTION #4538

Question 534

What is $(\sqrt{a})^2$ for $a > 0$?

$a$✔️
$\sqrt{a}$
$a^2$
$2a$

Correct Answer Logic:

$(\sqrt{a})^2 = a$ for any positive $a$. The square and square root cancel each other.

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Administration QUESTION #9568

Question 535

McClelland's research on achievement motivation identified a correlation between high achievement needs and occupational success. A public manager with high nCh (need for achievement) is assigned to a highly routine regulatory role with fixed procedures and no discretion. According to McClelland's framework, what is the likely organizational outcome?

The manager will apply their achievement drive to improve the efficiency of procedures within existing constraints
The manager will be demotivated because high achievers require challenging work, autonomy and frequent feedback — a misalignment between individual needs and job design✔️
The manager will transition toward high nPow (need for power) as an alternative outlet for their motivational drive
The manager will exhibit Theory Y behavior regardless of job design, as intrinsic motivation overrides situational constraints

Correct Answer Logic:

McClelland found that employees with high achievement needs are most motivated by challenging, autonomy-rich work with clear feedback on performance. A routine regulatory role with fixed procedures satisfies none of these conditions. The misalignment between the individual's dominant need and job characteristics produces demotivation, reduced performance and likely turnover — demonstrating why person-job matching is a critical HRM function.

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Islamic Studies QUESTION #230

Question 536

At what time is the Kusoof prayer performed?

Wind
Solar eclipse✔️
Lunar eclipse
None of these

Correct Answer Logic:

Salat al-Kusoof is offered during a solar eclipse; Salat al-Khusoof is for a lunar eclipse.

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General Abilities QUESTION #4527

Question 537

If $0 < x < 1$ and $a > 0$, then:

$x^a > x$
$x^a < x$✔️
$x^a = x$
Cannot determine

Correct Answer Logic:

For $0 < x < 1$, raising to positive power makes it smaller. Example: $0.5^2 = 0.25 < 0.5$

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Library Sciences QUESTION #1499

Question 538

Authority control in cataloguing serves which primary function?

To assign Dewey Decimal numbers to resources
To ensure consistency and uniqueness of access points such as names, titles, and subjects✔️
To digitize physical library collections
To generate acquisition orders for new materials

Correct Answer Logic:

Authority control ensures that a single, consistent, and authoritative form of a name, title, or subject heading is used across all records, preventing duplicate or inconsistent access points in a catalogue.

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General Knowledge QUESTION #8735

Question 539

'Ornithology' is the scientific study of:

Animals
Reptiles
Sea Plants
Birds✔️

Correct Answer Logic:

Ornithology is the study of birds.

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Chemistry QUESTION #7387

Question 540

Among the isoelectronic species $\text{O}^{2-}$, $\text{F}^-$, $\text{Na}^+$, $\text{Mg}^{2+}$ and $\text{Al}^{3+}$, their ionic radii show which trend?

An increase from $\text{O}^{2-}$ to $\text{F}^-$ then decrease from $\text{Na}^+$ to $\text{Al}^{3+}$
A decrease from $\text{O}^{2-}$ to $\text{F}^-$ then increase from $\text{Na}^+$ to $\text{Al}^{3+}$
A significant overall increase from $\text{O}^{2-}$ to $\text{Al}^{3+}$
A significant overall decrease from $\text{O}^{2-}$ to $\text{Al}^{3+}$✔️

Correct Answer Logic:

Isoelectronic species all have 10 electrons. Their size depends on nuclear charge:

$\text{O}^{2-}(Z=8) > \text{F}^-(Z=9) > \text{Na}^+(Z=11) > \text{Mg}^{2+}(Z=12) > \text{Al}^{3+}(Z=13)$

More protons = stronger pull on same electron cloud = smaller radius. There is a steady significant decrease across the series. No increase occurs — all species have the same number of electrons but increasing nuclear charge.

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