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Education QUESTION #1483

Aristotle is the originator of which educational philosophy, which holds that reality exists independent of the human mind?

Idealism
Pragmatism
Realism✔️
Reconstructionism

Correct Answer Logic:

Realism holds that the world of physical objects is the ultimate reality and that reality exists independent of the human mind. Its originator is Aristotle.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3211

Question 1062

'Negative Feedback' mechanism is used by the body to:

Increase a stimulus continuously
Oppose a change and restore balance✔️
Store fat
Produce sound

Correct Answer Logic:

Most hormones are regulated by negative feedback to maintain homeostasis.

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English Literature QUESTION #696

Question 1063

In "Hamlet," who says "To be, or not to be"?

Claudius
Polonius
Hamlet✔️
None of these

Correct Answer Logic:

This is the opening line of Hamlet's most famous soliloquy on the nature of existence and death.

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Library Sciences QUESTION #1514

Question 1064

According to Katz (2002), which of the following best defines a 'reference source' in library science?

Any book available on the library shelf
A work designed to be consulted for specific information rather than read cover to cover✔️
A source exclusively available in digital format
A periodical published on a regular basis

Correct Answer Logic:

Katz (2002) in 'Introduction to Reference Work' defines reference sources as works designed for consultation — to retrieve specific facts, data, or guidance — rather than for continuous reading from beginning to end.

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Boilers Mechanical Engineering QUESTION #2551

Question 1065

Kinetic friction coefficient $\mu_k$ versus static friction coefficient $\mu_s$ for identical surfaces satisfies:

Always $\mu_k > \mu_s$
Always $\mu_k = \mu_s$
Always $\mu_k < \mu_s$✔️
Can be either, depending on normal force magnitude

Correct Answer Logic:

Kinetic (sliding) friction is always less than maximum static friction: $\mu_k<\mu_s$. Once relative motion begins, the friction force drops because molecular adhesion bonds are continuously broken rather than built up.

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Electrical Engineering QUESTION #2160

Question 1066

A signal $x(t) = 5\cos(200\pi t) + 3\sin(400\pi t)$ is sampled at $f_s = 300\,\text{Hz}$. Which frequency component(s) experience aliasing?

Both $100\,\text{Hz}$ and $200\,\text{Hz}$✔️
$100\,\text{Hz}$ only
$200\,\text{Hz}$ only
No aliasing occurs

Correct Answer Logic:

The two components have frequencies $100\,\text{Hz}$ and $200\,\text{Hz}$. The Nyquist limit is $f_s/2 = 150\,\text{Hz}$. Since both exceed $150\,\text{Hz}$, both components alias.

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Physics QUESTION #7865

Question 1067

Two waves same frequency and amplitude meet in phase:

Destructive interference
Constructive (double amplitude)✔️
Zero amplitude
Same amplitude

Correct Answer Logic:

Constructive interference: amplitude = A₁+A₂ = 2A.

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English QUESTION #8563

Question 1068

What does the idiom 'to be at loggerheads' mean?

To cooperate with enemies
To be in strong disagreement or dispute✔️
To face stiff opposition
To tax one's mind and body

Correct Answer Logic:

'At loggerheads' means in disagreement.

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Contracts QUESTION #5858

Question 1069

A Seller sends a shipment of 'FOB Seller’s City.' The goods are damaged in a train wreck. Who bears the risk of loss?

The Seller, until the goods reach the Buyer.
The Buyer, because risk passed when the goods were delivered to the carrier.✔️
The Train Company, automatically.
The Buyer and Seller share the loss.

Correct Answer Logic:

In a 'Shipment Contract' (FOB Place of Shipment), the risk of loss passes to the buyer when the goods are delivered to the carrier.

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The Elections Act 2017 QUESTION #9458

Question 1070

Under Section 139(1), a fundamental limitation on election disputes is that no election shall be called in question except by an election petition filed by a:

Registered voter of the constituency
Candidate for that election✔️
Political party that participated in the election
Any citizen of Pakistan

Correct Answer Logic:

Section 139(1) states: 'No election shall be called in question except by an election petition filed by a candidate for that election' — standing is strictly limited to candidates, not voters or parties generally.

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Nursing QUESTION #9163

Question 1071

In epidemiology, a cohort study is best described as:

A study that starts with diseased and non-diseased individuals and looks back at exposure
A study that starts with exposed and unexposed groups and follows them forward to observe outcomes✔️
A study of a population at a single point in time
A study based on existing medical records

Correct Answer Logic:

A Cohort Study (also called a prospective study) is an observational analytical study where:

A group of exposed individuals and a group of unexposed individuals are identified
Both groups are followed forward in time to compare the incidence of disease
It calculates Relative Risk (RR)

Comparison of study designs:

Study Type	Direction	Measure
Cohort	Forward (prospective)	Relative Risk (RR)
Case-Control	Backward (retrospective)	Odds Ratio (OR)
Cross-sectional	Single point in time	Prevalence

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English Literature QUESTION #693

Question 1072

What is "Negative Capability" according to Keats?

Artistic weakness
Ability to accept uncertainty✔️
Pessimism
None of these

Correct Answer Logic:

Keats defined it as being "capable of being in uncertainties, Mysteries, doubts, without any irritable reaching after fact & reason."

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Physics QUESTION #1189

Question 1073

The Ultraviolet catastrophe means:

The spectral energy concentration towards longer wavelength.
The spectral energy concentration at the middle of the spectrum.
The spectral energy concentration towards shorter wavelength side.✔️
None of these

Correct Answer Logic:

The ultraviolet catastrophe was a prediction of classical physics (Rayleigh-Jeans law) that a blackbody should radiate infinite energy at very short (ultraviolet) wavelengths: $u(\nu) \propto \nu^2 T$. The spectral energy density was predicted to increase without bound towards shorter wavelengths, which was catastrophically wrong and was resolved by Planck's quantum hypothesis.

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Physics QUESTION #998

Question 1074

A light source of wavelength $\lambda$ illuminates a metal and electrons are ejected with maximum KE of 2 eV. If the same surface is illuminated by wavelength $\dfrac{\lambda}{2}$, the maximum KE of ejected electrons will be (work function $= 1\ \text{eV}$):

3 eV
2 eV
6 eV
5 eV✔️

Correct Answer Logic:

From first case: $\frac{hc}{\lambda} = \phi + 2 = 1+2 = 3\ \text{eV}$. With $\frac{\lambda}{2}$: energy $= \frac{2hc}{\lambda} = 6\ \text{eV}$. Max KE $= 6 - 1 = 5\ \text{eV}$.

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Chemistry QUESTION #7186

Question 1075

One gram of a metal carbonate ($M_{2}CO_{3}$) reacts with an excess of $HCl$ to produce $0.01186 \text{ moles}$ of $CO_{2}$. Calculate the molar mass of $M_{2}CO_{3}$ in $\text{g mol}^{-1}$.

$84.3$✔️
$118.6$
$11.86$
$1186$

Correct Answer Logic:

The reaction is $M_{2}CO_{3} + 2HCl \rightarrow 2MCl + H_{2}O + CO_{2}$:

From stoichiometry, $1 \text{ mole}$ of $M_{2}CO_{3}$ produces $1 \text{ mole}$ of $CO_{2}$.
Moles of $M_{2}CO_{3} = \text{Moles of } CO_{2} = 0.01186$.
Molar Mass = $\text{Mass} / \text{Moles} = 1 \text{ g} / 0.01186 \approx 84.3 \text{ g/mol}$.

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Math Physics Chemistry Biology QUESTION #563

Question 1076

Which hormone continues to promote protein synthesis throughout the body even after the cease in growth?

TSH
ADH
ACTH
STH✔️

Correct Answer Logic:

Somatotropin (STH/GH) promotes protein synthesis

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Chemistry QUESTION #7520

Question 1077

1 g of a carbonate M$_2$CO$_3$ reacts with excess HCl and produces 0.01186 mol of CO$_2$. What is the molar mass of M$_2$CO$_3$ (in g mol$^{-1}$)?

84.3✔️
118.6
11.86
1186

Correct Answer Logic:

From the reaction: M$_2$CO$_3 + 2\text{HCl} \to 2\text{MCl} + \text{H}_2\text{O} + \text{CO}_2$

1 mol M$_2$CO$_3$ produces 1 mol CO$_2$.

Moles of M$_2$CO$_3 =$ moles of CO$_2 = 0.01186\ \text{mol}$

Molar mass $= \dfrac{1\ \text{g}}{0.01186\ \text{mol}} \approx \mathbf{84.3\ \text{g mol}^{-1}}$

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Quantitative Reasoning QUESTION #8048

Question 1078

DEFERENCE: Choose the word most nearly opposite in meaning to this word.

aversion
resignation
suspicion
contempt✔️

Correct Answer Logic:

DEFERENCE means respectful submission or yielding to another's judgment or authority — showing high regard. Its antonym is contempt, which means a feeling that someone is worthless or beneath consideration — the complete opposite of respectful regard. 'Aversion' means strong dislike. 'Resignation' means acceptance. 'Suspicion' means distrust. 'Contempt' is the strongest direct antonym.

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Dairy Food Science and Technology QUESTION #5981

Question 1079

What is the function of rennet paste vs. liquid rennet or chymosin powder in traditional artisan cheese production?

Rennet paste provides only lipase activity, not proteolytic coagulation
Rennet paste from kid/lamb abomasum contains both chymosin (coagulation) and pregastric esterase (PGE, a lipase), developing characteristic sharp lipolytic flavor in Italian hard cheeses like Pecorino and Provolone✔️
Rennet paste has slower proteolytic activity but faster whey drainage
Rennet paste is used exclusively for soft cheeses like Camembert

Correct Answer Logic:

Traditional rennet paste (from kid/lamb stomachs) contains chymosin for milk coagulation PLUS pregastric esterase (PGE), a lipase that hydrolyzes short-chain fatty acids (particularly butyric acid at $sn$-3 position of triglycerides). This produces the characteristic peppery, piquant flavor of Italian artisan cheeses (Pecorino Romano, Provolone Piccante).

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MCQs Section QUESTION #5026

Question 1080

طوطا کہانی کا اردو ترجمہ کس شخصیت نے کیا؟

پریم چند
امتیاز علی تاج
حیدر بخش حیدری✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

طوطا کہانی سنسکرت کی مشہور کہانی ہے جسے اردو میں حیدر بخش حیدری نے 'توتا کہانی' کے نام سے ترجمہ کیا۔

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