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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3193

Question 9381

'Peripheral Resistance' to blood flow is primarily determined by the diameter of:

Aorta
Veins
Arterioles✔️
Capillaries

Correct Answer Logic:

Arterioles are known as the 'resistance vessels' because they can significantly constrict or dilate.

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MCQs Section QUESTION #4856

Question 9382

Choose the word nearly opposite in meaning to "LARCENY"

Appropriation
Peculation
Purloining
Indemnification✔️

Correct Answer Logic:

Larceny means the unlawful taking of someone's property; theft. Its antonym is 'indemnification,' meaning compensation for harm or loss — the opposite of taking something illegally.

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English QUESTION #7549

Question 9383

Choose the most appropriate meaning of the idiomatic phrase "To run the gamut"

To repeat a mistake.
To conceal important facts.
To end a discussion abruptly.
To cover a wide range of things.✔️

Correct Answer Logic:

To run the gamut means to experience or cover the entire range or scale of something.

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English QUESTION #8355

Question 9384

Anonymous means:

foreigner
stranger
nameless✔️
outsider

Correct Answer Logic:

Anonymous means having no known name; nameless.

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Ability / HR / Governance / Special Education QUESTION #1878

Question 9385

Under which legislative authority were the Government Servants (Efficiency and Discipline) Rules 1973 framed?

Section 25 of Civil Servants Act 1973
Section 20 of Civil Servants Ordinance 1973
Section 25 of Civil Servants Ordinance 1973 (No. XIV of 1973)✔️
Article 240 of the Constitution of Pakistan

Correct Answer Logic:

Rule 1 clearly states these rules were made under Section 25 of the Civil Servants Ordinance 1973 (No. XIV of 1973).

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Bio-Technology QUESTION #10585

Question 9386

A photobioreactor is specifically designed to culture:

Obligate anaerobes such as methanogens
Photosynthetic microalgae and cyanobacteria that require light as an energy source✔️
High-density E. coli for recombinant protein production
Thermophilic bacteria growing above 70°C

Correct Answer Logic:

Photobioreactors provide controlled light, CO₂, and mixing for photosynthetic microalgae (e.g. Chlorella, Spirulina) and cyanobacteria. Products include β-carotene, astaxanthin, and biomass. Key design challenges include: photoinhibition at high light intensities, self-shading as cell density increases, and CO₂ mass transfer. Tubular loop, flat panel, and helical designs maximise surface-area-to-volume ratio for light penetration.

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Education QUESTION #6781

Question 9387

Which of the following BEST explains why portfolios have very low reliability as an assessment tool compared to standardized tests?

Portfolios always favor high-ability students because they choose their own best work
Portfolio scoring lacks the standardized criteria, uniform conditions, and objective scoring procedures that characterize reliable measurement — different assessors apply different criteria to different content✔️
Portfolios contain too many items, which statistically reduces internal consistency
Portfolios are only valid for formative purposes and reliability is not applicable to them

Correct Answer Logic:

Reliability requires consistency across administrations, scorers, and conditions. Portfolios are diverse in content (student-selected), judged subjectively by different assessors using loosely defined criteria, and lack uniform conditions. All of these factors introduce variability into scores, which by definition reduces reliability. This is listed as a known weakness of portfolios.

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The Constitution of Pakistan QUESTION #9388

Question 9388

Article 251(1) designates which language as the National Language of Pakistan?

Urdu and English equally
Urdu alone
Urdu, to be used as the official language within fifteen years✔️
English, until Parliament decides otherwise

Correct Answer Logic:

Article 251(1) states: 'The National language of Pakistan is Urdu, and arrangements shall be made for its being used for official and other purposes within fifteen years from the commencing day.' However, English may continue for official purposes until then. Clause (3) allows a Provincial Assembly to prescribe measures for teaching/use of a provincial language.

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Law QUESTION #9495

Question 9389

A plaintiff institutes a suit for recovery of a loan on the basis of a promissory note. The defendant files a written statement but does not raise the defence of limitation. The Court frames issues but the defendant never raises limitation at trial. Can the Court, on its own motion, dismiss the suit on the ground that it is time-barred?

Yes; under the Limitation Act, every suit filed after the prescribed period is barred, and the Court must dismiss it regardless of whether it is pleaded, if the suit is apparently time-barred on the face of the plaint✔️
Yes; but only in appeals
No; limitation must be specifically pleaded by the defendant and the Court cannot raise it suo motu
No; a Court can only act on issues that are framed

Correct Answer Logic:

Section 3 of the Limitation Act 1908 imposes a mandatory obligation on every Court to dismiss a suit, appeal, or application that is prima facie time-barred, even if limitation has not been pleaded as a defence. The Court acts suo motu in such cases.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3412

Question 9390

'Jaundice' is characterized by an accumulation of which pigment in the blood?

Hemoglobin
Bilirubin✔️
Melanin
Chlorophyll

Correct Answer Logic:

Bilirubin is a byproduct of heme breakdown; excess causes yellowing of skin and eyes.

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Chemistry QUESTION #7407

Question 9391

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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Nursing QUESTION #9237

Question 9392

A patient in ICU is on a Norepinephrine infusion at $0.1 \text{ mcg/kg/min}$. The patient weighs $70 \text{ kg}$. Norepinephrine is available as $4 \text{ mg in } 250 \text{ mL}$ NS. What is the infusion rate in mL/hr?

$26.25 \text{ mL/hr}$✔️
$10.5 \text{ mL/hr}$
$6.56 \text{ mL/hr}$
$52.5 \text{ mL/hr}$

Correct Answer Logic:

Correct Answer: B — $10.5 \text{ mL/hr}$

Step-by-step calculation:

Step 1: Calculate the required dose in mcg/min:
\[\text{Dose} = 0.1 \text{ mcg/kg/min} \times 70 \text{ kg} = 7 \text{ mcg/min}\]

Step 2: Convert to mcg/hr:
\[7 \text{ mcg/min} \times 60 = 420 \text{ mcg/hr}\]

Step 3: Calculate concentration of solution:
\[\text{Concentration} = \frac{4 \text{ mg}}{250 \text{ mL}} = \frac{4000 \text{ mcg}}{250 \text{ mL}} = 16 \text{ mcg/mL}\]

Step 4: Calculate infusion rate:
\[\text{Rate} = \frac{420 \text{ mcg/hr}}{16 \text{ mcg/mL}} = 26.25 \text{ mL/hr}\]

Wait — rechecking: correct answer is 26.25 mL/hr → option A is correct.

Correct Answer is A — $26.25 \text{ mL/hr}$

Norepinephrine is the vasopressor of choice in septic shock (SSC guidelines). Always verify drug calculations using the formula: \[\text{Rate (mL/hr)} = \frac{\text{Dose (mcg/kg/min)} \times \text{Weight (kg)} \times 60}{\text{Concentration (mcg/mL)}}\]

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General Knowledge QUESTION #8668

Question 9393

How much time do sun rays take to reach the Earth?

5 minutes
7 minutes
8 minutes✔️
10 minutes

Correct Answer Logic:

Sunlight takes about 8 minutes and 20 seconds.

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English Literature QUESTION #10747

Question 9394

Who is the creator of the fictional detective character Sherlock Holmes?

Edgar Allan Poe
Agatha Christie
Arthur Conan Doyle✔️
John Lehmann

Correct Answer Logic:

Arthur Conan Doyle (1859–1930) created Sherlock Holmes, who first appeared in A Study in Scarlet (1887). Holmes, the brilliant detective of 221B Baker Street, and his companion Dr. Watson became the most famous fictional detective duo in literature. Edgar Allan Poe created the earlier detective character C. Auguste Dupin, who influenced Holmes; Agatha Christie created Hercule Poirot and Miss Marple.

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Chemistry QUESTION #477

Question 9395

The electron present in a particular orbit __________ energy.

Releases
Does not radiate✔️
Absorbs
None of these

Correct Answer Logic:

Electron in stationary orbit does not radiate energy

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Reading and Writing (Module-1) QUESTION #10449

Question 9396

Far from being ------- about the proposed budget cuts, the faculty voiced ------- opposition at the town hall meeting.

indifferent . . vociferous✔️
outraged . . muted
supportive . . enthusiastic
neutral . . mild

Correct Answer Logic:

'Far from being indifferent' sets up a contrast, so the faculty actually voiced strong, 'vociferous' opposition.

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Mathematics QUESTION #11227

Question 9397

The range of $\sec^{-1} x$ is:

$[0,\pi]$
$\left[0,\pi\right]\setminus\left\{\dfrac{\pi}{2}\right\}$✔️
$\left[-\dfrac{\pi}{2},\dfrac{\pi}{2}\right]$
$\left[-\dfrac{\pi}{2},\dfrac{\pi}{2}\right]\setminus\{0\}$

Correct Answer Logic:

The range of $\sec^{-1}x$ (arcsecant) is $[0,\pi]\setminus\{\pi/2\}$, since $\sec(\pi/2)$ is undefined. The domain is $|x|\geq 1$ (i.e. $x\leq -1$ or $x\geq 1$), and the range is $[0,\pi]$ excluding the point $\pi/2$ where secant is undefined.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3107

Question 9398

Where does the actual gas exchange ($O_2$ and $CO_2$) occur in the lungs?

Trachea
Bronchi
Alveoli✔️
Pharynx

Correct Answer Logic:

Alveoli are tiny air sacs with thin walls optimized for diffusion.

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Mathematics QUESTION #11194

Question 9399

Let $\mathbf{t}$, $\mathbf{n}$, $\mathbf{b}$ denote the tangent, principal normal, and binormal to a curve. The osculating plane at $P$ contains:

$\mathbf{t},\mathbf{b}$
$\mathbf{n},\mathbf{b}$
$\mathbf{t},\mathbf{n}$✔️
$\mathbf{t},\mathbf{n},\mathbf{b}$

Correct Answer Logic:

The osculating plane is the plane containing the tangent vector $\mathbf{t}$ and the principal normal $\mathbf{n}$ at a point on a curve. It is the plane that most closely approximates the curve near that point. The binormal $\mathbf{b} = \mathbf{t}\times\mathbf{n}$ is perpendicular to the osculating plane. The normal plane contains $\mathbf{n}$ and $\mathbf{b}$; the rectifying plane contains $\mathbf{t}$ and $\mathbf{b}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3397

Question 9400

Which vitamin is 'Fat-Soluble' and essential for blood clotting?

Vitamin B12
Vitamin C
Vitamin K✔️
Vitamin A

Correct Answer Logic:

Vitamins A, D, E, and K are fat-soluble; B and C are water-soluble.

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