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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5756

Question 1

Which enzyme is permanently inactivated by organophosphate compounds like Echothiophate?

Monoamine Oxidase
Angiotensin Converting Enzyme
Acetylcholinesterase✔️
Carbonic Anhydrase

Correct Answer Logic:

Echothiophate is an organophosphate that covalently binds and permanently inactivates acetylcholinesterase.

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Urdu QUESTION #1398

Question 2

پریم چند کا اصل نام بتائیے؟

مادھو رام
امرت لال
دھنپت رائے✔️
سدرشن

Correct Answer Logic:

منشی پریم چند (1880–1936) کا اصل نام دھنپت رائے تھا۔ وہ اردو اور ہندی کے یکساں عظیم افسانہ نگار اور ناول نگار تھے۔ ان کے مشہور ناولوں میں ''گؤدان''، ''بازارِ حسن'' (اردو: ''سوزِ وطن'') شامل ہیں۔ انہیں ''افسانے کا باوا آدم'' بھی کہا جاتا ہے۔

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Reading and Writing (Module-1) QUESTION #5420

Question 3

While researching a topic, a student has taken the following notes: • Chemical leavening agents cause carbon dioxide to be released within a liquid batter, making the batter rise as it bakes. • Baking soda and baking powder are chemical leavening agents. • Baking soda is pure sodium bicarbonate. • To produce carbon dioxide, baking soda needs to be mixed with liquid and an acidic ingredient such as honey. • Baking powder is a mixture of sodium bicarbonate and an acid. • To produce carbon dioxide, baking powder needs to be mixed with liquid but not with an acidic ingredient. The student wants to emphasize a difference between baking soda and baking powder. Which choice most effectively uses relevant information from the notes to accomplish this goal?

To make batters rise, bakers use chemical leavening agents such as baking soda and baking powder.
Baking soda and baking powder are chemical leavening agents that, when mixed with other ingredients, cause carbon dioxide to be released within a batter.
Baking soda is pure sodium bicarbonate, and honey is a type of acidic ingredient.
To produce carbon dioxide within a liquid batter, baking soda needs to be mixed with an acidic ingredient, whereas baking powder does not.✔️

Correct Answer Logic:

This choice directly contrasts the key difference: baking soda requires an acidic ingredient while baking powder doesn't.

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Dairy Food Science and Technology QUESTION #5877

Question 4

The alcoholic acidity test on milk works on the principle that:

Alcohol raises the pH of milk
Unstable proteins due to high acidity or colostrum precipitate in alcohol✔️
Fat globules dissolve in alcohol revealing acidity
Lactose ferments rapidly in alcohol

Correct Answer Logic:

The alcohol precipitation test relies on ethanol ($68\text{–}72\%$) dehydrating proteins. Milk with elevated acidity, high calcium ions, or abnormal protein (colostrum, mastitic milk) has destabilized casein micelles that precipitate upon alcohol addition.

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Dairy Food Science and Technology QUESTION #5971

Question 5

Why is it critical to maintain the cold chain for milk below $4^{\circ}\text{C}$ throughout distribution?

To prevent lactose crystallization
To inhibit growth of psychrotrophic bacteria (e.g. $Pseudomonas\;fluorescens$, $Listeria\;monocytogenes$) that grow efficiently at refrigeration temperatures ($0\text{–}7^{\circ}\text{C}$)✔️
To prevent vitamin D degradation
To maintain homogenization stability

Correct Answer Logic:

Psychrotrophic bacteria (cold-tolerant, growing at $0\text{–}7^{\circ}\text{C}$) are the primary spoilage concern for refrigerated milk. $Pseudomonas$ spp. produce heat-stable proteases and lipases that survive pasteurization causing bitterness, rancidity, and gelation in UHT milk. $Listeria\;monocytogenes$ is a cold-tolerant pathogen.

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Ability / HR / Governance / Special Education QUESTION #1916

Question 6

Under Rule 8(1) when a case concerns more than one Division the Division in charge must consult other Divisions and no orders shall issue until all Divisions have been consulted. Under what condition can this requirement be dispensed with?

With the approval of the Cabinet
With the approval of the Prime Minister in cases of urgency✔️
With the approval of the Secretary concerned
With the approval of the Finance Division

Correct Answer Logic:

The proviso to Rule 8(1) states that in cases of urgency and with the approval of the Prime Minister this consultation requirement may be dispensed with but the case must be brought to other Divisions at the earliest opportunity.

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Tourism & Hospitality Management QUESTION #1621

Question 7

The Tourism Management course covers 'managing urban tourism.' Which of the following is identified as a key challenge specific to urban tourism management?

Lack of accommodation in rural areas
Balancing the needs of resident populations with the demands of tourists, managing heritage sites in urban contexts, and addressing overcrowding and infrastructure strain✔️
The absence of natural attractions in cities
The high cost of adventure sports in urban environments

Correct Answer Logic:

Module 3 of the Tourism Management course — 'Managing Tourism in Its Environment' — covers urban tourism and identifies key challenges including: integrating tourism within existing urban infrastructure, managing heritage sites, balancing resident quality of life against tourist demand, and addressing overcrowding — issues that differ fundamentally from rural or natural-area tourism management.

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General Knowledge QUESTION #4471

Question 8

_____ is the author of “Essay on Population (1798)”.

Thomas Malthus✔️
Ester Boserup
Garret Hardin
None of these

Correct Answer Logic:

Thomas Malthus authored 'An Essay on the Principle of Population' in 1798.

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Physics QUESTION #7070

Question 9

An ideal gas is contained in an isolated closed chamber. During an adiabatic expansion, the average time between molecular collisions increases as $V^q$, where $V$ is the volume. Determine the value of $q$ in terms of $\gamma = C_p/C_v$.

$\frac{3\gamma+5}{6}$
$\frac{3\gamma-5}{6}$
$\frac{\gamma+1}{2}$✔️
$\frac{\gamma-1}{2}$

Correct Answer Logic:

Average time between collisions $\tau$ is given by $\tau = \frac{\lambda}{v_{rms}}$, where $\lambda$ is the mean free path.

1. $\lambda \propto \frac{1}{n} \propto V$ (where $n$ is number density).
2. $v_{rms} \propto \sqrt{T}$.
3. For an adiabatic process, $TV^{\gamma-1} = \text{constant}$, so $T \propto V^{1-\gamma}$ and $\sqrt{T} \propto V^{\frac{1-\gamma}{2}}$.

Therefore, $\tau \propto \frac{V}{V^{\frac{1-\gamma}{2}}} = V^{1 - \frac{1-\gamma}{2}} = V^{\frac{2-1+\gamma}{2}} = V^{\frac{\gamma+1}{2}}$.
Hence, $q = \frac{\gamma+1}{2}$.

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Boilers Mechanical Engineering QUESTION #2499

Question 10

For triaxial principal stresses ordered as $\sigma_1 > \sigma_2 > \sigma_3$, the absolute maximum shear stress is:

$\tau_{max} = \frac{\sigma_1 - \sigma_2}{2}$
$\tau_{max} = \frac{\sigma_2 - \sigma_3}{2}$
$\tau_{max} = \frac{\sigma_1 - \sigma_3}{2}$✔️
$\tau_{max} = \frac{\sigma_1 + \sigma_3}{2}$

Correct Answer Logic:

In triaxial stress state with $\sigma_1 > \sigma_2 > \sigma_3$, the maximum is $\tau_{max}=\tau_{1/3}=(\sigma_1-\sigma_3)/2$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3399

Question 11

Which vitamin is synthesized in the skin by 'Ultraviolet (UV) Sunlight'?

Vitamin A
Vitamin B
Vitamin D✔️
Vitamin E

Correct Answer Logic:

Vitamin D is essential for calcium absorption and bone health.

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Library Sciences QUESTION #1553

Question 12

The evaluation of library and information services is most effectively conducted using which combination of measures?

Only quantitative measures such as circulation statistics
Only qualitative measures such as user satisfaction surveys
Both quantitative measures (inputs, outputs, usage statistics) and qualitative measures (user satisfaction, outcomes, impact) used together✔️
Neither quantitative nor qualitative measures; evaluation should rely on expert opinion only

Correct Answer Logic:

Effective library evaluation requires both quantitative measures — such as circulation figures, reference transactions, and collection size — and qualitative measures — such as user satisfaction, perceived quality, and community impact. Stueart and Moran (2007) argue that neither approach alone provides a complete picture of library performance.

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Sociology QUESTION #1660

Question 13

Among the categories of social norms, which type carries the highest moral weight, typically represents a society's core ethical boundaries, and is most commonly enforced through formal legal codification?

Folkways
Mores✔️
Taboos
Customs

Correct Answer Logic:

Mores (singular: mos) are norms with strong moral significance that a society considers essential to its welfare and core values. Unlike folkways (minor etiquette norms), mores are typically codified into law and their violation is met with severe social sanctions. Taboos are the most extreme prohibition, but mores is the category most associated with legal codification.

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Planning QUESTION #4966

Question 14

Which urban planning concept emphasizes 15-minute accessibility to daily needs?

Garden City
15-Minute City✔️
Radburn Layout
Satellite Town

Correct Answer Logic:

The 15-Minute City concept, popularized by Carlos Moreno, aims to create neighborhoods where residents can access daily needs (work, shopping, education, healthcare) within a 15-minute walk or bike ride.

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Physical Education QUESTION #6807

Question 15

A Subject Specialist implementing 'Pragmatism' in Physical Education would most likely prioritize:

Strict adherence to historical sports rules
Activities that solve social problems and encourage democratic cooperation✔️
Individual isolation and solitary meditation
The memorization of physiological terminology

Correct Answer Logic:

Pragmatism emphasizes 'learning by doing' and the social utility of activities in a community setting.

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Physics QUESTION #7339

Question 16

A projectile is fired at $45°$ to the horizontal. The elevation angle of the projectile at its highest point, as seen from the point of projection, is:

$45°$
$60°$
$\tan^{-1}\!\left(\dfrac{1}{2}\right)$✔️
$\tan^{-1}\!\left(\dfrac{\sqrt{3}}{2}\right)$

Correct Answer Logic:

At max height $H = \dfrac{u^2}{4g}$; horizontal distance $= \dfrac{R}{2} = \dfrac{u^2}{2g}$

Elevation angle: $\tan\phi = \dfrac{H}{R/2} = \dfrac{u^2/(4g)}{u^2/(2g)} = \dfrac{1}{2}$

$\phi = \mathbf{\tan^{-1}\!\left(\dfrac{1}{2}\right)}$

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English QUESTION #7549

Question 17

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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Physics QUESTION #7315

Question 18

A stone is dropped from rest from the top of a $20\text{ m}$ tower. Its speed on hitting the ground is ($g = 10\text{ m/s}^2$):

$10.0\text{ m/s}$
$20.0\text{ m/s}$✔️
$40.0\text{ m/s}$
$5.0\text{ m/s}$

Correct Answer Logic:

Using $v^2 = u^2 + 2gh = 0 + 2(10)(20) = 400$

$v = \sqrt{400} = \mathbf{20\text{ m/s}}$

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Chemistry QUESTION #7109

Question 19

Consider the following reduction potentials:

$Zn^{2+} + 2e^{-} \rightarrow Zn(s)$; $E^{0} = -0.76\text{ V}$
$Ca^{2+} + 2e^{-} \rightarrow Ca(s)$; $E^{0} = -2.87\text{ V}$
$Mg^{2+} + 2e^{-} \rightarrow Mg(s)$; $E^{0} = -2.36\text{ V}$
$Ni^{2+} + 2e^{-} \rightarrow Ni(s)$; $E^{0} = -0.25\text{ V}$

What is the correct increasing order of the reducing power of these metals?

$Ca < Zn < Mg < Ni$
$Ni < Zn < Mg < Ca$✔️
$Zn < Mg < Ni < Ca$
$Ca < Mg < Zn < Ni$

Correct Answer Logic:

Reducing power is inversely proportional to the standard reduction potential ($E^0$). The more negative the $E^0$ value, the stronger the reducing agent. Comparing the values: $Ni$ (-0.25) is the weakest, followed by $Zn$ (-0.76), then $Mg$ (-2.36), and $Ca$ (-2.87) is the strongest.

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Ability / HR / Governance / Special Education QUESTION #5656

Question 20

A CFAO discovers that departmental accounts have not been reconciled with CGA/AGPR figures for three consecutive months. Under his duties what is the MOST SERIOUS institutional risk this creates?

Risk of salary delays for government servants
Risk of undetected unauthorized expenditure going unreported to Parliament and the PAC because the liability register and actual figures will diverge — rendering financial control and audit ineffective✔️
Risk of loss of budget allocation for the next year
Risk that the Financial Adviser will be held personally liable

Correct Answer Logic:

The CFAO must systematize maintenance of accounts and their timely reconciliation with CGA/AGPR figures and maintenance of the Liability Register. Failure to reconcile means that unauthorized expenditure excess spending and liabilities cannot be detected compared against the actual figures — this fundamentally undermines the entire financial control architecture including audit PAC accountability and the PAO's personal answerability. This is analytically the most serious institutional risk.

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