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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3129

Question 21

The 'Hypothalamus' plays a key role in regulating:

Body temperature
Hunger and thirst
Sleep-wake cycles
All of these✔️

Correct Answer Logic:

The hypothalamus is the master regulator of the autonomic nervous system and endocrine system.

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City and Regional Planning QUESTION #4970

Question 22

What is the primary limitation of Euclidean Zoning in modern urban planning?

It allows mixed-use development
It separates incompatible uses too rigidly✔️
It provides too much flexibility
It ignores environmental concerns

Correct Answer Logic:

Euclidean Zoning (named after Village of Euclid v. Ambler Realty Co.) rigidly separates land uses into single-use zones, leading to sprawl, increased travel distances, and reduced walkability—contradicting contemporary mixed-use and sustainable development principles.

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Others section QUESTION #4708

Question 23

'Ariana' is an airline belonging to which country?

Australia
Egypt
Iran
Afghanistan✔️

Correct Answer Logic:

Ariana Afghan Airlines is the national carrier of Afghanistan, founded in 1955. It is one of the oldest airlines in Asia.

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Economics QUESTION #1709

Question 24

The Chinn-Ito index (KAOPEN), frequently cited in cross-country empirical research on financial integration and capital mobility, is specifically designed to quantify a country's:

Total factor productivity in the manufacturing sector
Degree of capital account openness based on IMF's AREAER restrictions✔️
Nominal and real exchange rate volatility over a rolling period
None of these

Correct Answer Logic:

The Chinn-Ito index (developed by Menzie Chinn and Hiro Ito) is a de jure measure of capital account openness — it quantifies the extent to which a country restricts or liberalises cross-border capital transactions, based on binary variables derived from the IMF's Annual Report on Exchange Arrangements and Exchange Restrictions (AREAER). A higher KAOPEN score indicates a more open capital account. Pakistan's score has historically been low, reflecting significant capital account restrictions.

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Others section QUESTION #4695

Question 25

Gorbachev's policy termed 'Peredyshka' referred to which concept?

Free Trade
Breathing space✔️
Terrorist Movement
Non-Alignment

Correct Answer Logic:

Peredyshka is a Russian term meaning 'breathing space' or 'respite,' referring to a tactical pause or period of consolidation in Soviet foreign policy under Gorbachev.

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Computer Science QUESTION #1140

Question 26

Which scheduling algorithm can lead to the 'Convoy Effect'?

Round Robin
Priority Scheduling
First-Come-First-Served (FCFS)✔️
Shortest Job First

Correct Answer Logic:

The Convoy Effect occurs in FCFS when a long-running process stays at the head of the queue, causing shorter processes to wait significantly longer.

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Tourism & Hospitality Management QUESTION #1617

Question 27

The Tourism and Hospitality Laws course covers 'liabilities for lost and theft' as one of the 'other related laws in Pakistan.' Which legal principle most directly governs a hotel's liability for a guest's valuables?

The Antiquity Act
The innkeeper's liability under common law and relevant Pakistani provisions, which may limit the hotel's liability if safekeeping facilities were offered and not used✔️
Forest Act provisions
Wild Life protection regulations

Correct Answer Logic:

Module 5 of the Tourism and Hospitality Laws course covers 'Liabilities for lost and theft' under Pakistan's related laws. The legal basis derives from innkeeper liability under common law — which requires hotels to exercise due care over guests' property and may limit liability if the hotel offered (and the guest declined) the use of a safe or security facility.

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Tourism & Hospitality Management QUESTION #1598

Question 28

Which of the following statements about the CPEC (China-Pakistan Economic Corridor) is correctly identified in the Pakistan Tourist Destinations course as a benefit to tourism?

CPEC is expected to damage Pakistan's natural tourist sites through industrialization
CPEC infrastructure development (roads, energy, connectivity) is expected to enhance tourism accessibility and create new investment opportunities in Pakistan's tourist destinations✔️
CPEC has no relevance to tourism development in Pakistan
CPEC focuses exclusively on industrial development with no tourism component

Correct Answer Logic:

The Pakistan Tourist Destinations course lists 'CPEC and benefits to Tourism Industry' under the Neotourism module, recognizing that CPEC's infrastructure development — improved roads, connectivity, and economic investment — creates new opportunities for tourism accessibility, accommodation investment, and regional destination development in Pakistan.

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Chemistry QUESTION #1004

Question 29

The correct order of the following complexes in terms of their crystal field stabilization energies (CFSE) is:

$[\text{Co(NH}_3)_4]^{2+} < [\text{Co(NH}_3)_6]^{2+} < [\text{Co(en)}_3]^{3+} < [\text{Co(NH}_3)_6]^{3+}$
$[\text{Co(NH}_3)_6]^{2+} < [\text{Co(NH}_3)_6]^{3+} < [\text{Co(NH}_3)_4]^{2+} < [\text{Co(en)}_3]^{3+}$
$[\text{Co(en)}_3]^{3+} < [\text{Co(NH}_3)_6]^{3+} < [\text{Co(NH}_3)_6]^{2+} < [\text{Co(NH}_3)_4]^{2+}$
$[\text{Co(NH}_3)_4]^{2+} < [\text{Co(NH}_3)_6]^{2+} < [\text{Co(NH}_3)_6]^{3+} < [\text{Co(en)}_3]^{3+}$✔️

Correct Answer Logic:

CFSE depends on oxidation state and ligand field strength. $\text{Co}^{2+}$ complexes have lower CFSE than $\text{Co}^{3+}$. Among $\text{Co}^{3+}$: en (bidentate) produces a stronger field than $\text{NH}_3$ due to chelate effect. Tetrahedral $[\text{Co(NH}_3)_4]^{2+}$ has the lowest CFSE $(= 0.4\Delta_t)$. Order: $[\text{Co(NH}_3)_4]^{2+} < [\text{Co(NH}_3)_6]^{2+} < [\text{Co(NH}_3)_6]^{3+} < [\text{Co(en)}_3]^{3+}$.

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Computer Science QUESTION #1133

Question 30

When do data hazards occur in a pipeline?

During performance loss
When pipeline changes the order of read/write access to operands✔️
When a unit is not fully pipelined
When machine size is limited

Correct Answer Logic:

Data hazards happen when the pipeline changes the timing or order of operand access, leading to an instruction attempting to use data before it is updated by a previous instruction.

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Biology QUESTION #4268

Question 31

Which component of a reflex arc connects the sensory neuron to the motor neuron within the spinal cord?

Receptor
Effector
Muscle fiber
Associative neuron✔️

Correct Answer Logic:

The associative neuron (interneuron) is located in the spinal cord and connects the sensory (afferent) neuron to the motor (efferent) neuron in a reflex arc.

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Statistics QUESTION #1960

Question 32

If $P(A)$ is the probability of event A, which expression correctly gives the probability of its complement $A^c$?

$1 + P(A)$
$1 - P(A)$✔️
$P(A)$
$P(A) - 1$

Correct Answer Logic:

By the complement rule of probability, $P(A^c) = 1 - P(A)$. Since $P(A) + P(A^c) = 1$, the complement probability is always $1 - P(A)$.

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Urdu QUESTION #5310

Question 33

یہ مجھے چین کیوں نہیں پڑتا ایک ہی شخص تھا جہاں میں کیا؟

غالب
جان ایلیا✔️
ان میں سے کوئی نہیں
پروین شاکر

Correct Answer Logic:

یہ مشہور شعر جان ایلیا کا ہے جو اپنی انوکھی شاعرانہ فکر اور غمزدہ انداز کے لیے مشہور تھے۔

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Physics and Math QUESTION #735

Question 34

If the radius of circle is doubled then centripetal force becomes:

Doubled
Remains same
Half✔️
Reduces four times

Correct Answer Logic:

Centripetal force F = mv²/r. If r is doubled F becomes mv²/2r = F/2. So the force is halved.

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General Knowledge QUESTION #4656

Question 35

Advertising rose 20% while garment consumption rose 25%. All explain this EXCEPT:

Per capita consumption of unstitched garments declined✔️
Advertising effectiveness increased
Sewing machine production doubled
Readymade garments were available in more shops

Correct Answer Logic:

No explanation provided for this question.

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Economics QUESTION #1688

Question 36

The doctrine of comparative advantage predicts that mutual gains from international trade arise when:

Both absolute and comparative advantage are present in both trading countries simultaneously
Opportunity costs for the same good are identical across all trading partners
Significant economies of scale exist in both trading economies
Each country specialises in producing goods in which its relative opportunity cost is lowest✔️

Correct Answer Logic:

David Ricardo's Law of Comparative Advantage (1817) states that a country should specialise in and export the good in which it has the lowest opportunity cost (relative efficiency), even if it is absolutely less efficient at producing all goods. The key is relative (comparative) not absolute efficiency. Gains from trade arise from differences in opportunity costs — not from their equality.

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Others section QUESTION #4705

Question 37

Which organization is considered the world's oldest international human rights body?

Amnesty International
Freedom House
Anti-Slavery International✔️
Human Rights Watch

Correct Answer Logic:

Anti-Slavery International, founded in 1839, is the world's oldest international human rights organization, predating Amnesty International (1961) and Freedom House (1941).

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