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General Knowledge QUESTION #8802

Question 1

Which is the world's biggest seaport by cargo volume?

Rotterdam (Netherlands)
Shanghai (China)✔️
Naples (Italy)
Seattle (USA)

Correct Answer Logic:

Shanghai is the world's busiest container port.

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English Literature QUESTION #10688

Question 2

Sounds associated with letters like f, s, v, z — where air passes through a narrow constriction causing turbulent airflow and a noisy sound — are called:

Plosives
Fricatives✔️
Articulations
Allophonic

Correct Answer Logic:

Fricatives are consonant sounds produced by forcing air through a narrow constriction in the vocal tract, creating friction and a hissing or buzzing noise. Examples include /f/, /v/, /s/, /z/, /ʃ/ (shoe), /ʒ/ (measure), and /h/. Plosives involve a complete closure and sudden release of air (e.g. /p/, /b/, /t/, /d/).

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English QUESTION #8507

Question 3

The defeated army fled _______ the battlefield.

about
from✔️
off
by

Correct Answer Logic:

'Fled from' means ran away from.

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Boilers Mechanical Engineering QUESTION #2501

Question 4

Poisson's ratio $\nu$ is defined as the ratio of:

$\text{Axial strain}/\text{Lateral strain}$
$\text{Lateral strain}/\text{Axial strain}$ (magnitude)✔️
$\text{Shear strain}/\text{Normal strain}$
$\text{Normal stress}/\text{Lateral stress}$

Correct Answer Logic:

Poisson's ratio: $\nu = -\varepsilon_{lateral}/\varepsilon_{axial}$ (the negative sign makes $\nu$ positive). For most metals, $\nu \approx 0.25\text{–}0.35$.

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Maths QUESTION #4607

Question 5

Solve: $4(x + 2) = 20$

$x = 3$✔️
$x = 5$
$x = 18$
$x = 7$

Correct Answer Logic:

$4(x+2) = 20 \Rightarrow x+2 = 5 \Rightarrow x = 3$

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2954

Question 6

Which mechanism describes the 'Leaching' effect in glass containers used for alkaline preparations?

Adsorption of drug to glass
Release of alkali from glass into the preparation✔️
Evaporation of solvent
Oxidation of the active ingredient

Correct Answer Logic:

Type II and III glass can release surface alkalis when in contact with water or alkaline solutions, affecting the stability of the drug.

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MCQs Section QUESTION #5264

Question 7

آئن بائن شائن کرنے سے کیا مراد ہے؟

جھوٹ بولنا
ہاں میں ہاں ملانا
ٹال مٹول کرنا✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

آئن بائن شائن کرنا محاورے کا مطلب ہے ٹال مٹول کرنا یا حیلہ بہانہ کرنا (یہاں آپشن 2 بہتر ہے)۔

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Biology QUESTION #7269

Question 8

Nitrogen fixation in root nodules of Alnus is brought about by:

Frankia✔️
Azorhizobium
Bradyrhizobium
Clostridium

Correct Answer Logic:

Frankia is a filamentous actinomycete that forms nitrogen-fixing root nodules (actinorhizal nodules) in non-leguminous plants like Alnus (alder), Casuarina, and Ceanothus. Rhizobium and Bradyrhizobium nodulate legumes; Azorhizobium is stem-nodulating; Clostridium is a free-living anaerobic nitrogen fixer.

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Social Studies QUESTION #10025

Question 9

Socially and culturally assigned expectations attached to being male or female are referred to as:

Societal Role
Sex Role
Gender Role✔️
Gender Mainstreaming

Correct Answer Logic:

'Gender Role' describes the social and cultural expectations tied to being male or female.

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Physics QUESTION #7046

Question 10

Given a human pupil radius of $0.25 \text{ cm}$ and a viewing distance of $25 \text{ cm}$, what is the minimum distance between two objects that the eye can resolve at a wavelength of $500 \text{ nm}$?

$1 \ \mu\text{m}$
$30 \ \mu\text{m}$✔️
$100 \ \mu\text{m}$
$300 \ \mu\text{m}$

Correct Answer Logic:

The limit of resolution (angular) is $\Delta \theta = \frac{1.22 \lambda}{D}$, where $D$ is the diameter ($2 \times 0.25 = 0.5 \text{ cm} = 0.005 \text{ m}$).

Minimum separation $y = d \cdot \Delta \theta = \frac{1.22 \lambda d}{D}$

$y = \frac{1.22 \times 500 \times 10^{-9} \times 0.25}{0.005} \approx 30.5 \times 10^{-6} \text{ m} = 30.5 \ \mu\text{m}$.

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English QUESTION #8474

Question 11

Select the word OPPOSITE in meaning to: Melancholy

Cheerfulness✔️
Madness
Insanity
Truthfulness

Correct Answer Logic:

Melancholy means deep sadness; opposite is cheerfulness.

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Professional QUESTION #1838

Question 12

Section 12(3) provides the right to show cause before dismissal. However, the proviso lists two exceptions where this right does NOT apply. Which of the following is one of those exceptions?

Where the civil servant has been absent without leave for more than thirty days
Where the civil servant is dismissed on the ground of conduct leading to conviction on a criminal charge✔️
Where the civil servant holds an ad hoc appointment
Where the civil servant is on extended probation

Correct Answer Logic:

Section 12(3) provides two exceptions to the right to show cause: (i) where the civil servant is dismissed on grounds of conduct leading to conviction on a criminal charge; and (ii) where the President or an authorized person is satisfied, for recorded reasons, that in the interest of the security of Pakistan it is not expedient to give such opportunity. Criminal conviction and national security are the two exceptions.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3075

Question 13

Which cavity contains the lungs and the heart?

Abdominal cavity
Thoracic cavity✔️
Pelvic cavity
Cranial cavity

Correct Answer Logic:

The thoracic cavity is protected by the rib cage and contains the primary organs of the cardiovascular and respiratory systems.

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Dairy Food Science and Technology QUESTION #5882

Question 14

In cheese making, coagulation of milk by rennet involves:

Reduction of pH by lactic acid bacteria
Proteolytic cleavage of $\kappa$-casein by chymosin at the $\text{Phe}_{105}\text{–Met}_{106}$ bond✔️
Calcium precipitation of whey proteins
Denaturation of $\beta$-lactoglobulin by heat

Correct Answer Logic:

Chymosin specifically cleaves $\kappa$-casein at the $\text{Phe}_{105}\text{–Met}_{106}$ peptide bond, releasing the hydrophilic glycomacropeptide (GMP) into whey. This removes steric stabilization of casein micelles, allowing calcium-mediated aggregation and gel formation.

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Reading and Writing (Module-1) QUESTION #5405

Question 15

Earth's atmosphere is bombarded by cosmic dust originating from several sources: short-period comets (SPCs), particles from the asteroid belt (ASTs), Halley-type comets (HTCs), and Oort cloud comets (OCCs). Some of the dust's material vaporizes in the atmosphere in a process called ablation, and the faster the particles move, the higher the rate of ablation. Astrophysicist Juan Diego Carrillo-Sánchez led a team that calculated average ablation rates for elements in the dust (such as iron and potassium) and showed that material in slower-moving SPC or AST dust has a lower rate than the same material in faster-moving HTC or OCC dust. For example, whereas the average ablation rate for iron from AST dust is 28%, the average rate for _______. Which choice most effectively uses data from the table to complete the example?

iron from SPC dust is 20%.
sodium from OCC dust is 100%.
iron from HTC dust is 90%.✔️
sodium from AST dust is 75%.

Correct Answer Logic:

The example illustrates lower ablation in slower-moving AST dust (28% for iron) versus higher ablation in faster-moving HTC dust (90% for iron).

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Pakistan Affairs QUESTION #595

Question 16

Quaid-i-Azam M. A. Jinnah breathed his last in:

Quetta
Lahore
Karachi✔️
None of These

Correct Answer Logic:

The Quaid passed away in Karachi on September 11, 1948.

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English QUESTION #11593

Question 17

As soon as I saw her, I realized I had met her _____ .

ago
earlier
before✔️
None of these

Correct Answer Logic:

Before is the correct choice. When the reference is to an earlier time relative to another past event (here: seeing her), we use before without specifying a time gap. Ago is used with a specific time period and a simple past tense (e.g., “I met her two years ago”), not with the past perfect. Earlier can work in some contexts but is less precise and less idiomatic here.

Correct Answer: C — before.

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MCQs Section QUESTION #5112

Question 18

مسدسِ حالی کس بحر میں لکھی گئی ہے؟

بحرِ ہزج✔️
بحرِ متدارک
بحرِ کامل
بحرِ رمل

Correct Answer Logic:

مسدسِ حالی بحرِ ہزج میں لکھی گئی ہے۔

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Math Physics Chemistry Biology QUESTION #571

Question 19

How many grams of nitrogen can be eliminated in form of uric acid by 50 ml of water?

20
25
30
50✔️

Correct Answer Logic:

50 ml water can eliminate ~50g nitrogen as uric acid

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Mathematics QUESTION #1321

Question 20

The area enclosed between two curves $y=f(x)$ and $y=g(x)$ where $f(x)\geq g(x)$ on $[a,b]$ is given by:

$\int_a^b[f(x)+g(x)]\,dx$
$\int_a^b[f(x)-g(x)]\,dx$✔️
$\int_a^b[f(x)\cdot g(x)]\,dx$
$\dfrac{1}{2}\int_a^b[f(x)-g(x)]\,dx$

Correct Answer Logic:

The area between two curves is the integral of the top curve minus the bottom curve: $A=\int_a^b[f(x)-g(x)]\,dx$ where $f(x)\geq g(x)$ on $[a,b]$. The limits $a$ and $b$ are the $x$-coordinates of the intersection points.

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