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Pakistan Affairs QUESTION #4676

Pakistan's first Martial Law was imposed in which month and year?

Aug-58
Sep-58
Oct-58✔️
Nov-58

Correct Answer Logic:

General Ayub Khan imposed Pakistan's first Martial Law on October 7, 1958, with President Iskander Mirza abrogating the constitution. Mirza himself was deposed by Ayub Khan on October 27, 1958.

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Logical Reasoning QUESTION #3953

Question 3362

The artist found that the _____ of the city's architecture was a stark contrast to the _____ of the rural landscape.

grandeur...simplicity✔️
chaos...vibrancy
monotony...variety
rigidity...fluidity

Correct Answer Logic:

No explanation provided for this question.

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Boilers Mechanical Engineering QUESTION #2465

Question 3363

In epicyclic (planetary) gear trains, the contour method velocity equation requires that the sum of relative angular velocities around a closed loop satisfies:

$\sum_i \omega_{i,i-1} = \omega_{input}$
$\sum_i \omega_{i,i-1} = 0$ and $\sum_i \overrightarrow{AA_i} \times \omega_{i,i-1} = 0$✔️
$\prod_i \omega_{i,i-1} = 1$
$\sum_i N_i \omega_{i,i-1} = 0$

Correct Answer Logic:

The velocity equations for a simple closed kinematic chain: $\sum_i v_{i,i-1}=0$ and $\sum_i \overrightarrow{AA_i}\times v_{i,i-1}=0$.

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General Abilities QUESTION #2842

Question 3364

What is the difference between Compound Interest and Simple Interest on Rs. 10,000 at $5\%$ per annum for 2 years?

Rs. 20
Rs. 25✔️
Rs. 30
Rs. 50

Correct Answer Logic:

SI $= \dfrac{10000 \times 5 \times 2}{100} = 1000$. CI: Amount $= 10000 \times (1.05)^2 = 10000 \times 1.1025 = 11025$. CI $= 1025$. Difference $= 1025 - 1000 = Rs.\ 25$.

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Mathematics QUESTION #4136

Question 3365

If $\vec{a} \times (\vec{b} \times \vec{c}) = (\vec{a} \times \vec{b}) \times \vec{c}$, what can we conclude about vectors $\vec{a}$ and $\vec{c}$?

$\vec{a}$ is perpendicular to $\vec{c}$
$\vec{a}$ and $\vec{c}$ are parallel✔️
$\vec{b}$ is perpendicular to both $\vec{a}$ and $\vec{c}$
$\vec{a} = \vec{c}$

Correct Answer Logic:

Using vector triple product identity: $\vec{a} \times (\vec{b} \times \vec{c}) = (\vec{a} \cdot \vec{c})\vec{b} - (\vec{a} \cdot \vec{b})\vec{c}$ and $(\vec{a} \times \vec{b}) \times \vec{c} = (\vec{a} \cdot \vec{c})\vec{b} - (\vec{b} \cdot \vec{c})\vec{a}$. Equating gives $(\vec{a} \cdot \vec{b})\vec{c} = (\vec{b} \cdot \vec{c})\vec{a}$, implying $\vec{a}$ and $\vec{c}$ are parallel.

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Education QUESTION #7574

Question 3366

The study of 'great books' and enduring works of literature is at the core of which philosophy?

Perennialism✔️
Essentialism
Progressivism
Reconstructionism

Correct Answer Logic:

Perennialism emphasizes timeless ideas and universal truths found in the 'Great Books' of Western civilization, believing these works contain enduring knowledge.

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Mathematics QUESTION #4121

Question 3367

By Mean Value Theorem on $f(x) = e^x$, for $x > 0$, there exists $c \in (0, x)$ such that:

$e^x - 1 = e^c \cdot x$✔️
$e^x - 1 = x$
$e^x = 1 + cx$
$\frac{e^x - 1}{x} = c$

Correct Answer Logic:

MVT: $\frac{f(x) - f(0)}{x - 0} = f'(c) = e^c$. So $\frac{e^x - 1}{x} = e^c$, giving $e^x - 1 = xe^c$.

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Chemistry QUESTION #7808

Question 3368

Oxidation of a secondary alcohol yields:

Carboxylic acid
Ether
Ketone✔️
Phenol

Correct Answer Logic:

Secondary alcohols oxidize to ketones (e.g., isopropanol → acetone). Primary alcohols → aldehydes → carboxylic acids; tertiary alcohols resist oxidation.

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Administration QUESTION #2950

Question 3369

"Ethical Relativism" in business ethics is the belief that:

There are universal ethical truths that apply to all cultures
Morality is dependent on cultural or individual perspectives✔️
Profit should always be prioritized over ethical considerations
None of these

Correct Answer Logic:

Relativism suggests that what is "right" or "wrong" is not absolute but varies based on the social or cultural context.

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Boilers Mechanical Engineering QUESTION #2400

Question 3370

In the general Bernoulli energy equation, the term $H_A$ represents:

Head loss due to friction
Energy added to the fluid by a pump (pump head)✔️
Energy extracted from the fluid by a turbine
Velocity head at section A

Correct Answer Logic:

In the extended Bernoulli equation: $H_A$ is the head added by a pump, $H_L$ is the head loss due to friction, and $H_E$ is the head extracted by a turbine.

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General Abilities QUESTION #2896

Question 3371

At what rate will $\$500$ yield $\$100$ interest in $4$ years?

4%
5%✔️
10%
6%

Correct Answer Logic:

$R = (I \times 100) / (P \times T) = (100 \times 100) / (500 \times 4) = 10000 / 2000 = 5\%$.

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Disaster Management QUESTION #6515

Question 3372

In the context of anticipatory action mechanisms, what distinguishes them from traditional disaster preparedness?

They focus on post-disaster recovery
They trigger pre-disaster interventions based on forecast thresholds✔️
They only involve early warning dissemination
They replace the need for emergency response

Correct Answer Logic:

Section 7.2 defines anticipatory action as proactive measures taken before disasters strike, based on credible forecasts and predefined triggers. This represents a paradigm shift from reactive response to forecast-based financing and pre-emptive intervention.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3615

Question 3373

Substituting a genuine drug with look-alike exhausted or exhausted materials is called:

Sophistication
Admixture
Substitution✔️
Deterioration

Correct Answer Logic:

Substitution is the replacement of the original with something totally different or inferior.

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Urdu QUESTION #5238

Question 3374

جس سے کسی چیز کو تشبیہ دی جائے اسے کہتے ہیں؟

مشبہ
مشبہ بہ✔️
وجہِ شبہ
حرفِ تشبیہ

Correct Answer Logic:

مشبہ بہ وہ ہے جس سے تشبیہ دی جائے۔ مشبہ وہ ہے جسے تشبیہ دی جائے۔

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General Knowledge QUESTION #271

Question 3375

The capital of Costa Rica is:

San Jose✔️
Tegucigalpa
Managua
None of these

Correct Answer Logic:

San Jose is the largest city and capital of Costa Rica.

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Geography QUESTION #6312

Question 3376

The Demographic Transition Model's Stage 5 (proposed for post-industrial societies) is characterized by:

Birth rate slightly exceeding death rate
Death rate exceeding birth rate with negative natural increase✔️
High birth and death rates in equilibrium
Fluctuating rates with no clear pattern

Correct Answer Logic:

Stage 5 (debated) describes societies like Japan and Germany where death rates exceed birth rates (fertility below 2.1 replacement level), resulting in negative natural increase and population decline despite low mortality.

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Dairy Food Science and Technology QUESTION #5902

Question 3377

The phenomenon of lactose crystallization in concentrated milk products causing a gritty texture is called:

Syneresis
Maillard browning
Sandiness due to $\alpha$-lactose monohydrate crystal formation (crystals $>30\;\mu\text{m}$)✔️
Creaming

Correct Answer Logic:

When lactose supersaturation occurs in condensed or sweetened condensed milk or ice cream, large $\alpha$-lactose monohydrate crystals ($>30\;\mu\text{m}$) form causing sandiness or grittiness. Control involves rapid cooling, seeding with fine lactose crystals, or use of lactase.

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Math Physics Chemistry Biology QUESTION #7782

Question 3378

Which function is NOT controlled by the autonomic nervous system?

Cardiac muscle contraction
Salivation
Smooth muscle contraction
Thoughts and emotions✔️

Correct Answer Logic:

Autonomic (sympathetic/parasympathetic) controls involuntary functions: heart rate, digestion, salivation, smooth muscle. Thoughts and emotions are controlled by the central nervous system (cerebrum/limbic system).

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Boilers Mechanical Engineering QUESTION #4026

Question 3379

'Condensate' is considered valuable because:

It is already hot and is pure distilled water
It contains chemicals✔️
It is heavy
It is blue

Correct Answer Logic:

Returning condensate to the boiler saves fuel (heat) and reduces water treatment costs.

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Geography QUESTION #6313

Question 3380

Von Thünen's agricultural land use model assumes all of the following EXCEPT:

A single central market (isolated state)
Uniform transportation costs per unit distance in all directions✔️
Homogeneous land quality and topography
Farmers maximizing profit by minimizing transportation costs

Correct Answer Logic:

Von Thünen's model assumes transportation costs are proportional to distance AND weight/bulk of products, not uniform per distance. Perishable/bulky items locate closer to market; less perishable/lighter goods locate farther out.

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