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Basic Mathematics QUESTION #4505

Question 1

What is $5 \div 0$?

$0$
$5$
Undefined✔️
$\infty$

Correct Answer Logic:

Division by zero is undefined. We cannot divide any number by zero.

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Math Physics Chemistry Biology QUESTION #808

Question 2

Which is not a calcareous material?

Clay✔️
Marble
Lime
Marine shell

Correct Answer Logic:

Calcareous materials contain calcium carbonate $(\text{CaCO}_3)$. Marble, lime, and marine shells are all calcareous. Clay is an aluminosilicate and is not calcareous.

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Security Measures to Maintain Law and Order QUESTION #837

Question 3

An AD ASF finds a suspicious bag. Under Section 7, what is the legal requirement before a search?

Written warrant
Judicial permission
Reasonable suspicion✔️
Owner's consent

Correct Answer Logic:

Section 7(1) allows search of persons/baggage based on reasonable suspicion to ensure security.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3347

Question 4

'Lyophilization' is a process used for:

Killing microbes with heat
Freeze-drying to preserve microbial cultures✔️
Staining slides
Testing water

Correct Answer Logic:

Water is removed under vacuum while the sample is frozen, allowing for long-term storage.

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Civil Engineering QUESTION #2117

Question 5

According to Euler's theory, the critical buckling load for a column with both ends pinned (hinged) is $P_{cr} = \dfrac{\pi^2 EI}{L^2}$. For the same column with one end fixed and other end free, the critical load becomes:

The same $\dfrac{\pi^2 EI}{L^2}$
$\dfrac{2\pi^2 EI}{L^2}$
$\dfrac{\pi^2 EI}{4L^2}$✔️
$\dfrac{4\pi^2 EI}{L^2}$

Correct Answer Logic:

Effective length $L_e$ for different end conditions: both pinned $= L$; one fixed one free $= 2L$. Euler's formula $P_{cr} = \dfrac{\pi^2 EI}{L_e^2}$. For fixed-free: $P_{cr} = \dfrac{\pi^2 EI}{(2L)^2} = \dfrac{\pi^2 EI}{4L^2}$. This is the minimum possible buckling load — the fixed-free condition is the least stable of all standard end conditions.

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City and Regional Planning QUESTION #5016

Question 6

In environmental planning, what does the concept of 'ecological footprint' quantify?

Number of species in an area
Land area needed to support consumption✔️
Air pollution levels
Water quality

Correct Answer Logic:

Ecological footprint measures the biologically productive land and water area required to produce resources consumed and absorb wastes generated by a population, typically expressed in global hectares per capita—indicating sustainability of consumption patterns.

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Physics and Math QUESTION #782

Question 7

$\dfrac{1 - \cos\alpha}{\sin\alpha} = ?$

$\tan\dfrac{\alpha}{2}$✔️
$\cot\dfrac{\alpha}{2}$
$\sin\dfrac{\alpha}{2}$
None

Correct Answer Logic:

Using half-angle identities: $1 - \cos\alpha = 2\sin^2\dfrac{\alpha}{2}$ and $\sin\alpha = 2\sin\dfrac{\alpha}{2}\cos\dfrac{\alpha}{2}$, so the ratio $= \tan\dfrac{\alpha}{2}$.

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Physics QUESTION #1158

Question 8

X-rays are electromagnetic waves of wavelengths of the order of:

1 nm
0.1 nm✔️
2 nm
100 nm

Correct Answer Logic:

X-rays have wavelengths in the range of approximately $0.01\ \text{nm}$ to $10\ \text{nm}$, with a typical order of $0.1\ \text{nm}$ (1 Å). This is comparable to the spacing between atoms in crystals, which is why X-rays are used in crystallography.

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Biology QUESTION #540

Question 9

The attraction among water molecules which hold water together is called

Tension
Adhesion
Cohesion✔️
Ambibition

Correct Answer Logic:

Cohesion is water-water attraction

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Federal Rules of Evidence (US) QUESTION #3785

Question 10

An attorney is defending a client in a murder trial. The attorney hires a private investigator to interview witnesses. The prosecution subpoenas the investigator's notes. Are the notes discoverable?

Yes, because the investigator is not an attorney.
No, they are protected by the Attorney-Client Privilege.
No, they are protected by the Work-Product Doctrine (Rule 26/Common Law/FRE 502).✔️
Yes, unless the investigator is also a licensed attorney.

Correct Answer Logic:

The work-product doctrine protects documents and tangible things prepared in anticipation of litigation by or for another party or its representative (including investigators).

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Basic Mathematics QUESTION #4559

Question 11

Compare $1.83$ and $1.823$:

$1.83 > 1.823$✔️
$1.83 < 1.823$
$1.83 = 1.823$
Cannot compare

Correct Answer Logic:

Write as $1.830$ and $1.823$. Since $1830 > 1823$, we have $1.83 > 1.823$

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3134

Question 12

The 'Medulla Oblongata' contains vital centers for:

Memory and emotion
Heart rate and respiration✔️
Vision and hearing
Digestion only

Correct Answer Logic:

The brainstem controls basic life-sustaining functions.

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Urdu QUESTION #5158

Question 13

قاضی جی اردو کا مشہور مزاحیہ کردار کس کی تخلیق ہے؟

پریم چند
بانو قدسیہ
اشفاق احمد
شوکت تھانوی✔️

Correct Answer Logic:

قاضی جی کردار شوکت تھانوی کی تخلیق ہے جو اردو مزاح نگاری میں مشہور ہے۔

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Basic Mathematics QUESTION #2861

Question 14

In a right-angled triangle, the two shorter sides are 8 cm and 15 cm. Find the hypotenuse.

16 cm
17 cm✔️
18 cm
19 cm

Correct Answer Logic:

By Pythagoras theorem: $h^2 = 8^2 + 15^2 = 64 + 225 = 289$. So $h = \sqrt{289} = 17$ cm.

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Islamic Studies QUESTION #327

Question 15

How many heads (categories) of Zakat are mentioned in the Quran?

5
6
7
8✔️

Correct Answer Logic:

Surah At-Tawbah (Verse 60) mentions eight categories of people eligible for Zakat.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3378

Question 16

The 'Inversion' of sugar refers to the hydrolysis of sucrose into:

Glucose and Galactose
Glucose and Fructose✔️
Two Glucose molecules
Starch and Water

Correct Answer Logic:

The resulting mixture is called 'Invert Sugar' because the optical rotation changes.

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Security Measures to Maintain Law and Order QUESTION #934

Question 17

How should an AD ASF manage a large, angry crowd during a flight cancellation?

Use physical force immediately
Provide clear information and maintain a presence✔️
Lock all the terminal doors
Leave the area to avoid conflict

Correct Answer Logic:

Clear communication and visible presence are key to preventing a frustrated crowd from turning into a security riot.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3672

Question 18

'Coriander' (Dhania) is used as a:

Stimulant and Carminative✔️
Poison
Narcotic
Hormone

Correct Answer Logic:

Coriandrum sativum is a common digestive aid.

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Biology QUESTION #4255

Question 19

According to Lamarck, the evolution of long necks in giraffes is explained by:

Natural selection
Genetic mutation
Survival of the fittest
Stretching of necks over generations✔️

Correct Answer Logic:

Lamarck's theory of use and disuse states that giraffes stretched their necks to reach higher leaves, and this acquired characteristic was passed to offspring over generations.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3372

Question 20

'Opsonization' is the process where:

Bacteria are killed by heat
Pathogens are coated with antibodies/complement to enhance phagocytosis✔️
Viruses enter a cell
DNA is copied

Correct Answer Logic:

It makes the 'prey' (pathogens) easier for the 'predators' (WBCs) to catch.

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