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Physics QUESTION #7082

If a man's linear dimensions increase by a factor of $9$ while his density remains constant, by what factor will the stress in his leg change?

$\frac{1}{81}$
9✔️
$\frac{1}{9}$
81

Correct Answer Logic:

Stress is defined as $\frac{\text{Force}}{\text{Area}}$.

Force (Weight) $\propto \text{Volume} \propto L^3$
Area $\propto L^2$
$\text{Stress} \propto \frac{L^3}{L^2} \propto L$
Since $L$ increases by factor $9$, stress increases by factor $9$.

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Child Health QUESTION #3927

Question 3302

A 4-year-old child presents with a sudden onset of wheezing and coughing. On examination, the temperature is $37.5^\circ ext{C}$ and the respiratory rate is $30/ ext{min}$. There is dullness to percussion at the left lung base and localized wheezing. What is the most likely diagnosis?

Inhalation of a foreign body✔️
Acute bronchial asthma
Bacterial pneumonia
Congenital tracheomalacia

Correct Answer Logic:

No explanation provided for this question.

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Accounting & Finance QUESTION #6076

Question 3303

Iga suspects that some credit notes received from suppliers have not been recorded. Which of the following actions should she take to verify this?

Compare purchases ledger balances against supplier statements
Extract a trial balance of individual purchases ledger accounts
Prepare a purchases ledger control account

1 and 2
1 only✔️
2 and 3 only
3 only

Correct Answer Logic:

Comparing the business's records with the supplier's statement is the most effective way to find missing credit notes, as the supplier will have recorded the credit note even if the business forgot to. A trial balance or control account only checks internal consistency.

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General Science and Ability QUESTION #253

Question 3304

The isotopes of any element contain equal number of:

Protons✔️
Neutrons
Both electrons and protons
None of these

Correct Answer Logic:

Isotopes are atoms of the same element with the same number of protons but different neutrons.+1

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General Knowledge QUESTION #4480

Question 3305

_____ authored the book “Prisoner of Geography”.

Tim Marshall✔️
Henry Kissinger
Samuel P. Huntington
None of these

Correct Answer Logic:

Tim Marshall wrote 'Prisoners of Geography'.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3300

Question 3306

'Hypersensitivity Type I' (Immediate) is commonly mediated by which antibody?

IgG
IgM
IgE✔️
IgD

Correct Answer Logic:

Type I includes anaphylaxis and hay fever, involving IgE-mediated mast cell degranulation.

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Psychology QUESTION #9833

Question 3307

Self-assertive behaviour is an example primarily of:

An abundancy motive
A stimulation motive✔️
A survival motive
A security motive

Correct Answer Logic:

Self-assertion — expressing one's needs, opinions, and boundaries — is driven by a stimulation motive (need for agency, growth, and self-expression). It goes beyond survival needs and reflects higher-order drives for autonomy and impact.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5754

Question 3308

Which Phase of drug metabolism involves conjugation reactions with endogenous substrates?

Phase I
Phase II✔️
Phase III
Phase IV

Correct Answer Logic:

Phase II consists of conjugation reactions (like glucuronidation) to increase water solubility.

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Dairy Food Science and Technology QUESTION #5931

Question 3309

Somatic cell count (SCC) in milk is used as an indicator of:

Antibiotic contamination
Fat content variation
Udder health — elevated SCC ($>200{,}000\text{–}400{,}000\;\text{cells/mL}$) indicates mastitis✔️
Bacterial contamination from the environment

Correct Answer Logic:

SCC measures white blood cells and mammary epithelial cells shed into milk. Normal SCC $< 200{,}000\;\text{cells/mL}$; SCC $> 400{,}000\;\text{cells/mL}$ (EU limit) indicates subclinical mastitis, which reduces milk quality (lower casein, higher plasmin, reduced shelf life).

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Academic/Professional (Social Sciences) QUESTION #6508

Question 3310

What is 'Satiety' in the context of research data?

When the researcher is tired
When no new information is being obtained from additional data collection✔️
When the sample size is small
When the hypothesis is proven wrong

Correct Answer Logic:

Data saturation is the point in qualitative research where no new insights are observed.

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Nursing QUESTION #9195

Question 3311

A Head Nurse is evaluating a research instrument. The tool consistently produces the same results when administered repeatedly under the same conditions. This property is called:

Validity
Reliability✔️
Sensitivity
Specificity

Correct Answer Logic:

Correct Answer: B — Reliability

Key measurement concepts:

Concept	Definition
Reliability	Consistency and stability of measurements over repeated testing
Validity	Accuracy — does the tool measure what it claims to measure?
Sensitivity	Ability to correctly identify true positives
Specificity	Ability to correctly identify true negatives

Important relationship: A tool can be reliable without being valid (consistently wrong), but a tool cannot be valid without being reliable. Reliability is a necessary but not sufficient condition for validity.

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FIA Act QUESTION #9962

Question 3312

Administration of the Agency vests in:

The Federal Government
The Director General✔️
The Cabinet Secretary
The Chief Justice

Correct Answer Logic:

Administration vests in the Director General under Section 4.

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Mathematics QUESTION #6966

Question 3313

If $\cos^{-1}x - \cos^{-1}\!\dfrac{y}{2}=\alpha$ where $-1\leq x\leq1,\ -2\leq y\leq2,\ x\leq\dfrac{y}{2}$, then $4x^2-4xy\cos\alpha+y^2$ equals:

$4\sin^2\alpha$✔️
$2\sin^2\alpha$
$4\sin^2\alpha-2x^2y^2$
$4\cos^2\alpha+2x^2y^2$

Correct Answer Logic:

Let $\cos^{-1}x=A$ and $\cos^{-1}(y/2)=B$, so $A-B=\alpha$.

Then $\cos A=x,\ \cos B=y/2,\ \sin A=\sqrt{1-x^2},\ \sin B=\sqrt{1-y^2/4}$.

Using $\cos\alpha=\cos(A-B)=\cos A\cos B+\sin A\sin B=\dfrac{xy}{2}+\sqrt{1-x^2}\sqrt{1-\frac{y^2}{4}}$

$4x^2-4xy\cos\alpha+y^2 = (2x-y\cos\alpha)^2+y^2(1-\cos^2\alpha)$... expanding directly: $= 4x^2+y^2-4xy\cos\alpha$.

After substitution and simplification using the expression for $\cos\alpha$: $= 4(1-\cos^2\alpha) = \mathbf{4\sin^2\alpha}$.

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Academic/Professional (Social Sciences) QUESTION #10112

Question 3314

G. H. Mead's concept of the 'self' develops through:

Genetic inheritance alone
Social interaction and role-taking✔️
Isolation from society
Economic competition

Correct Answer Logic:

Mead argued the self emerges through social interaction, particularly role-taking with others.

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Biology QUESTION #7277

Question 3315

Which one is the wrong pairing for the disease and its causal organism?

Root-knot of vegetables — Meloidogyne sp.
Late blight of potato — Alternaria solani✔️
Black rust of wheat — Puccinia graminis
Loose smut of wheat — Ustilago nuda

Correct Answer Logic:

The wrongly matched pair is Late blight of potato — Alternaria solani. Late blight of potato is caused by Phytophthora infestans (an oomycete), not Alternaria solani. Alternaria solani causes early blight of potato. The other pairings are correct: Meloidogyne causes root-knot, Puccinia graminis causes black rust, Ustilago nuda causes loose smut.

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Islamic Studies QUESTION #341

Question 3316

Imam Muslim Bin Hijaj Qusheri (author of Sahih Muslim) died in:

260 AH
261 AH✔️
262 AH
263 AH

Correct Answer Logic:

He passed away in 261 AH in Nishapur.

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Education QUESTION #6777

Question 3317

A teacher asks students to sort unseen essay papers by quality (best to worst), then assigns grades based on relative rank. According to holistic rubric theory, which grading philosophy does this approach embody, and what is its key limitation?

Criterion-referenced philosophy; it lacks discriminating power
Norm-referenced philosophy; papers are ranked relative to each other rather than against absolute quality criteria, which makes it unsuitable for large numbers of papers✔️
Absolute standard philosophy; it can be applied consistently to any number of papers
Analytic philosophy; sub-criteria are implicitly weighted differently

Correct Answer Logic:

This is the fourth approach to holistic scoring — ranking papers relative to each other — which aligns with norm-referenced or relative standard grading. Its critical limitation: it cannot be applied to large sets of papers because it requires reading and comparing all papers simultaneously, and scores depend on the composition of the specific group rather than absolute quality.

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Pakistan Affairs QUESTION #127

Question 3318

The Tashkent Agreement was signed on:

10-Jan-66✔️
10-Feb-66
10-Mar-66
10-Apr-66

Correct Answer Logic:

The Tashkent Declaration was a peace agreement between India and Pakistan signed on 10 January 1966.

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Accounting & Finance QUESTION #1223

Question 3319

In normal circumstances, taxes are charged on:

Gross Receipt
Total Income
Taxable Income✔️
Gross Income

Correct Answer Logic:

Under income tax law, taxes are assessed on taxable income — which is the income remaining after all allowable deductions, exemptions, and tax credits are subtracted from gross or total income. Gross receipts and gross income include items that may be exempt or deductible, so they are not the direct basis for tax calculation.

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Civil Procedure QUESTION #5665

Question 3320

A party wishes to depose an expert witness who has been retained by the opposing side for trial preparation but is not expected to be called as a witness at trial. Under Rule 26(b)(4)(D), when is this allowed?

Always, as long as the party pays the expert's reasonable fee.
Only upon a showing of 'substantial need' and 'undue hardship'.
Only as provided in Rule 35(b) or on showing 'exceptional circumstances' where it is impracticable to obtain facts or opinions by other means.✔️
Never; non-testifying experts are completely protected from discovery.

Correct Answer Logic:

Rule 26(b)(4)(D) provides that a party may not discover facts known or opinions held by a non-testifying expert except as provided in Rule 35(b) or on showing exceptional circumstances.

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