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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3344

Question 10181

'Tuberculin' test (Mantoux test) is an example of which hypersensitivity?

Type I
Type II
Type III
Type IV (Delayed)✔️

Correct Answer Logic:

It takes $48-72$ hours for a positive skin reaction to appear.

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MBBS QUESTION #10162

Question 10182

A patient with spinal cord hemisection (Brown-Séquard syndrome) shows ipsilateral loss of proprioception and fine touch below the lesion, together with contralateral loss of pain and temperature. This pattern reflects the differing decussation levels of which two pathways?

Dorsal columns (decussate in medulla) and spinothalamic tract (decussate near level of entry)✔️
Corticospinal tract and dorsal columns (both decussate at the same spinal level)
Spinocerebellar tracts only
Vestibulospinal and rubrospinal tracts

Correct Answer Logic:

The dorsal columns ascend ipsilaterally and decussate only in the medulla (internal arcuate fibers), whereas the spinothalamic tract decussates almost immediately at the segmental level of entry. This difference explains the classic dissociated sensory pattern in Brown-Séquard syndrome.

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Education QUESTION #6795

Question 10183

What is the MOST fundamental reason why 'Depth of Knowledge' (DOK) Level 3 (Strategic Thinking) and Level 4 (Extended Thinking) items should appear in assessments designed for Teacher/Subject Specialist examination — as opposed to relying primarily on DOK Levels 1 and 2?

Higher DOK levels require longer answers, which increases test validity
Subject specialists must demonstrate the ability to analyze real-world educational problems and synthesize solutions over time — capacities that DOK 1 (recall) and 2 (skills/concepts) items structurally cannot elicit✔️
Higher DOK levels have easier scoring rubrics
DOK 3 and 4 items are faster to construct than lower-level items

Correct Answer Logic:

DOK Level 3 (Strategic Thinking) requires short-term higher-order thinking — analysis and evaluation applied to real-world problems. DOK Level 4 (Extended Thinking) requires synthesis, reflection, and adjustment over time. These are the cognitive capacities central to professional educator competence. Assessments limited to recall and basic skills cannot distinguish candidates who can genuinely solve complex educational problems from those who merely memorize content.

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Pakistan Affairs QUESTION #9091

Question 10184

Which pass connects Pakistan with China?

Khunjerab Pass✔️
Khojak Pass
Khyber Pass
Bolan Pass

Correct Answer Logic:

The Khunjerab Pass is on the Karakoram Highway.

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Dairy Food Science and Technology QUESTION #5989

Question 10185

Sodium hexametaphosphate and trisodium citrate are used as emulsifying salts in processed cheese. Their mechanism involves:

Acting as antimicrobial agents preventing mold growth
Chelating $\text{Ca}^{2+}$ from the casein-calcium phosphate complex, solubilizing and dispersing casein proteins to form a stable protein-fat emulsion upon heating ('creaming of casein')✔️
Lowering the $\text{pH}$ to improve acid-gel formation
Crosslinking casein proteins through phosphate bridges

Correct Answer Logic:

Emulsifying salts in processed cheese work via $\text{Ca}^{2+}$ chelation (sequestration). By removing $\text{Ca}^{2+}$ from casein-calcium-phosphate linkages, they break down the protein matrix, allowing individual casein molecules to hydrate, unfold, and interact with fat at the interface during heating ('creaming of casein').

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Disaster Management QUESTION #6530

Question 10186

Which data integration challenge poses the greatest obstacle to evidence-based DRR planning?

Insufficient satellite imagery
Lack of inter-agency data sharing mechanisms and interoperability between systems✔️
Outdated computers
Limited GIS expertise

Correct Answer Logic:

Section 6.1 emphasizes developing secure data-sharing mechanisms between government stakeholders. Despite technological advances, institutional silos, data ownership concerns, and incompatible systems prevent the integration necessary for comprehensive risk assessments and decision-making.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3466

Question 10187

'Negative Nitrogen Balance' occurs when:

Nitrogen intake equals output
Nitrogen output exceeds intake (as in starvation or severe illness)✔️
Muscles are growing
During pregnancy

Correct Answer Logic:

Indicates body protein is being broken down faster than it is replaced.

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General Science and Ability QUESTION #256

Question 10188

Which contains a greater number of carbon atoms in one mole?

Chloroform
Methanol
Water
Ethanol✔️

Correct Answer Logic:

Ethanol (C2H5OH) has 2 carbon atoms per molecule, more than Chloroform (CHCl3) or Methanol (CH3OH).+1

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English Literature QUESTION #10762

Question 10189

To which language family does the English language belong?

Romance
Germanic✔️
Celtic
American

Correct Answer Logic:

English belongs to the Germanic branch of the Indo-European language family. Specifically, it is a West Germanic language, related to German, Dutch, Frisian, and Yiddish. It developed from the dialects brought to Britain by the Angles, Saxons, and Jutes. While English has absorbed enormous vocabulary from French (a Romance language) and Latin, its grammatical core and basic vocabulary remain Germanic.

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Mathematics QUESTION #11157

Question 10190

$\displaystyle\int_0^1 \frac{4}{1+x^2}\,dx =$

$0$
$\pi$✔️
$\dfrac{4\pi}{3}$
$-\pi$

Correct Answer Logic:

$\displaystyle\int_0^1 \frac{4}{1+x^2}\,dx = 4\left[\arctan x\right]_0^1 = 4\left(\frac{\pi}{4} - 0\right) = \pi$.

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Geography QUESTION #1245

Question 10191

The point in the sky directly over the observer is called:

Horizon
Zenith✔️
Aphelion
None of these

Correct Answer Logic:

The zenith is the point in the celestial sphere directly above an observer — the point at exactly 90° from all points on the observer's horizon. The horizon is the line where the sky meets the Earth. Aphelion is the point in Earth's orbit farthest from the Sun. The zenith is used as a reference point in astronomy and navigation.

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Reading and Writing (Module-1) QUESTION #10395

Question 10192

Rather than ------- the criticism, the author welcomed it as an opportunity to refine her argument.

embracing
resenting✔️
soliciting
endorsing

Correct Answer Logic:

'Rather than X, she welcomed it' signals X is the opposite of welcoming, matching 'resenting.'

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Law QUESTION #9698

Question 10193

Under Article 118, the burden of proof in a suit lies on that person who:

Makes the first allegation
Would fail if no evidence at all were given on either side✔️
Has the most to gain from the verdict
Is the plaintiff in a civil suit

Correct Answer Logic:

Article 118 states the burden of proof lies on that person who would fail if no evidence at all were given on either side.

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Law QUESTION #9682

Question 10194

Under Article 40, when a fact is discovered as a result of information received from a person in police custody, how much of such information may be proved?

The entire statement
Only so much as relates distinctly to the fact thereby discovered✔️
None, as it is completely excluded
Only the part that amounts to a confession

Correct Answer Logic:

Article 40 allows proof of only so much of the information as relates distinctly to the fact thereby discovered, whether or not it amounts to a confession.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3222

Question 10195

The 'Organ of Corti' is the actual organ of hearing located inside the:

Semicircular canals
Utricle
Cochlea✔️
Middle ear

Correct Answer Logic:

Hair cells in the cochlea convert mechanical sound waves into electrical impulses.

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Chemistry QUESTION #7407

Question 10196

Which is the correct order for the first ionisation potential (IP₁)?

$\text{Na} > \text{Al}$
$\text{Mg} > \text{Al}$✔️
$\text{Ga} > \text{Ca}$
$\text{Mg} > \text{Be}$

Correct Answer Logic:

IE₁ irregularities:
Generally IE₁ increases left to right, but Al (3p¹) has lower IE₁ than Mg (3s²) because:

Mg has a full 3s² subshell (extra stability)
Al's 3p electron is shielded by 3s electrons and easier to remove

Therefore $\text{Mg} > \text{Al}$ is a correct and expected inequality. This is one of the classic exceptions to the smooth IE trend across period 3.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5691

Question 10197

During the sterilization of parenteral preparations, the $F_{0}$ value represents the equivalent time at what temperature?

$100^{\circ}C$
$121^{\circ}C$✔️
$115^{\circ}C$
$134^{\circ}C$

Correct Answer Logic:

$F_{0}$ is the equivalent time (in minutes) at $121^{\circ}C$ to provide the same lethality as the actual thermal process.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5804

Question 10198

Communication through facial expressions and body posture is called:

Verbal
Kinesics✔️
Writing
Proxemics

Correct Answer Logic:

Kinesics is the study of body movement and facial expressions[cite: 7].

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Maths QUESTION #2855

Question 10199

If $x + \dfrac{1}{x} = 5$, find $x^2 + \dfrac{1}{x^2}$.

23✔️
25
27
29

Correct Answer Logic:

$\left(x + \dfrac{1}{x}\right)^2 = x^2 + 2 + \dfrac{1}{x^2}$. So $25 = x^2 + 2 + \dfrac{1}{x^2} \Rightarrow x^2 + \dfrac{1}{x^2} = 23$.

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Electrical Engineering QUESTION #2145

Question 10200

A system is described by the transfer function $H(s) = \frac{10}{s^2 + 2s + 10}$. What is the natural frequency $\omega_n$ of this system?

$10\text{ rad/s}$
$\sqrt{10}\text{ rad/s}$✔️
$2\text{ rad/s}$
$5\text{ rad/s}$

Correct Answer Logic:

Comparing with the standard form $\frac{\omega_n^2}{s^2 + 2\zeta\omega_n s + \omega_n^2}$, we see $\omega_n^2 = 10$, so $\omega_n = \sqrt{10}\text{ rad/s}$.

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