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General Abilities QUESTION #7988

The equation $x + a = b$ has a solution in the set of natural numbers if:

a < b✔️
a > b
a = b
None of these

Correct Answer Logic:

$x + a = b \Rightarrow x = b - a$. For $x$ to be a natural number (positive integer), we need $b - a \geq 1$, i.e., $b > a$, or equivalently $a < b$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3410

Question 2

'Acidosis' is a clinical condition where the blood $pH$ drops below:

$7.35$✔️
$7.45$
$7.00$
$8.00$

Correct Answer Logic:

Normal blood $pH$ is maintained between $7.35$ and $7.45$.

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Biology QUESTION #7771

Question 3

The synthesis of ATP using a proton gradient across a membrane is called:

Fermentation
Glycolysis
Oxidative phosphorylation✔️
Pyruvate oxidation

Correct Answer Logic:

Oxidative phosphorylation occurs in the inner mitochondrial membrane (or bacterial plasma membrane) via the electron transport chain and ATP synthase. It couples chemiosmosis with ATP synthesis.

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General Knowledge QUESTION #4728

Question 4

Angela Merkel holds which political position in her country?

President of France
First Lady of Britain
Chancellor of Germany✔️
President of Germany

Correct Answer Logic:

Angela Merkel served as Chancellor of Germany from 2005 to 2021, becoming the first female Chancellor of Germany. The Chancellor is the head of government in Germany.

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Physics QUESTION #386

Question 5

An __________ missile is called a ballistic missile.

Un-powered and guided
Un-guided and powered
Powered and guided
Un-powered and un-guided✔️

Correct Answer Logic:

Ballistic missiles are unpowered and unguided in flight phase

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Boilers Mechanical Engineering QUESTION #2473

Question 6

The tensile strength $S_{ut}$ of spring wire of diameter $d$ is estimated by the power law $S_{ut} = A/d^m$. For music wire, the exponent $m \approx 0.163$. This means:

Strength is independent of wire diameter
Strength INCREASES as wire diameter DECREASES (smaller wire is stronger)✔️
Strength increases as wire diameter increases
Strength is linearly proportional to wire diameter

Correct Answer Logic:

Since $S_{ut}=A/d^m$ with $m>0$, smaller diameter wire has higher tensile strength due to more cold-drawing and work-hardening effect.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3368

Question 7

'Tincture' of Iodine refers to iodine dissolved in:

Water
Alcohol✔️
Oil
Vinegar

Correct Answer Logic:

Tinctures are common antiseptic solutions.

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Biology Zoology Botany QUESTION #1373

Question 8

Which type of pollination involves the transfer of pollen by wind?

Hydrophily
Anemophily✔️
Entomophily
Zoophily

Correct Answer Logic:

Anemophily is pollination by wind. Wind-pollinated plants (e.g., grasses, conifers, oak) typically produce large quantities of light, smooth, dry pollen; have reduced or absent petals; lack nectar and scent; and have feathery stigmas to catch airborne pollen. Hydrophily = water, Entomophily = insects, Zoophily = animals (including birds and bats).

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Physics QUESTION #991

Question 9

A rectangular metallic loop moves out of a uniform magnetic field region into a field-free region at constant speed. When partially inside, the plot of magnitude of induced emf $(\varepsilon)$ with time $(t)$ is:

Linearly increasing graph
Decreasing curve (exponential)
Linearly increasing then constant
Constant (horizontal line)✔️

Correct Answer Logic:

As the loop exits at constant speed, the rate of change of flux is constant ($\varepsilon = Bvl$ = constant). So the emf is constant with time — represented by a horizontal line. Answer key: option (4) = constant horizontal line.

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General Ability and Fire Fighting QUESTION #5629

Question 10

A fire in a server room with live electrical equipment is classified as:

Class A
Class B
Class C✔️
Class D

Correct Answer Logic:

A server room fire involving live electrical equipment is a Class C fire. CO2 or dry chemical (non-conductive) extinguishers should be used.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3660

Question 11

'Ginseng' is a famous tonic root used in which traditional system?

Unani
Homeopathy
Chinese Medicine✔️
Allopathy

Correct Answer Logic:

Ginseng is highly valued in Traditional Chinese Medicine (TCM).

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Urdu QUESTION #5161

Question 12

قہوۂ عبارت سے کیا مراد ہے؟

عبارت کی تلخیص✔️
عبارت کا مفہوم
عبارت کا ترجمہ
ان میں سے کوئی نہیں

Correct Answer Logic:

قہوۂ عبارت سے مراد کسی عبارت کا خلاصہ یا تلخیص ہے۔

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Planning QUESTION #4922

Question 13

Which surveying method is most appropriate for establishing control points over large areas?

Chain surveying
Compass surveying
Triangulation surveying✔️
Plane table surveying

Correct Answer Logic:

Triangulation surveying is most suitable for large areas because it provides high accuracy through a network of triangles, using trigonometric calculations to establish precise control points.

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Disaster Management QUESTION #6526

Question 14

Which capacity-building approach would most effectively create sustained DRR expertise at the district level?

One-time training workshops
Establishing a cascading training model with local Centers of Excellence, mentorship programs, and certification✔️
Sending district officers to international training
Distributing training manuals

Correct Answer Logic:

Sections 11.2 and 11.3 emphasize sustained capacity building through Centers of Excellence, mentorship, certification programs, and local resilience hubs. Cascading training creates institutional memory and local expertise rather than dependence on external trainers.

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Physics QUESTION #7001

Question 15

The graph best representing the variation of acceleration due to gravity $g$ with distance $d$ from Earth's centre (Earth's radius $= R$) shows which behaviour?

$g$ peaks sharply at $d = R$ with linear rise inside and $1/d^2$ fall outside
$g$ increases exponentially throughout with no peak
$g$ rises linearly from 0 to a peak at $d = R$ then falls as $1/d^2$ outside✔️
$g$ is constant inside and decreases outside

Correct Answer Logic:

The correct behaviour of $g$:

Inside the Earth ($d < R$): $g = \frac{GM}{R^3}d$ — linear increase from $g=0$ at centre to $g_{surface}$ at $d=R$.
Outside the Earth ($d > R$): $g = \frac{GM}{d^2}$ — decreases as $1/d^2$.

The graph shows a straight line from origin to $(R, g_{max})$, then a smooth $1/d^2$ curve decreasing afterward. This is a linear rise inside and inverse-square fall outside, meeting at a sharp peak at $d = R$.

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Math Physics Chemistry Biology QUESTION #810

Question 16

Which is not present abundantly in Earth's crust?

Na
Al
Ba✔️
Ca

Correct Answer Logic:

Barium (Ba) is a trace element in Earth's crust. Oxygen, silicon, aluminium, calcium, and sodium are among the most abundant elements.

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General Abilities QUESTION #4556

Question 17

What is $15\%$ of $80$?

$12$✔️
$15$
$95$
$1200$

Correct Answer Logic:

$15\%$ of $80 = \frac{15}{100} \times 80 = 0.15 \times 80 = 12$

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General Abilities QUESTION #2809

Question 18

What is $35\%$ of 480?

152
162
168✔️
172

Correct Answer Logic:

$35\% \text{ of } 480 = \dfrac{35}{100} \times 480 = \dfrac{35 \times 480}{100} = \dfrac{16800}{100} = 168$.

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Education QUESTION #6728

Question 19

A teacher notices students memorize facts but cannot explain underlying principles or apply knowledge. To promote deeper understanding, the teacher should emphasize:

More drill and practice
Conceptual understanding and relational knowledge✔️
Faster memorization techniques
Increased homework quantity

Correct Answer Logic:

Deeper understanding requires moving beyond instrumental understanding (knowing procedures) to relational understanding (knowing why and how concepts connect). Emphasis should shift from memorization to conceptual grasp, relationships, and application.

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Boilers Mechanical Engineering QUESTION #3986

Question 20

What is 'Water Hammer' in a steam line?

A tool used to fix pipes
A loud noise and vibration caused by steam hitting condensate water✔️
A type of pressure gauge
A method of cleaning tubes

Correct Answer Logic:

Rapidly moving steam can propel slugs of water against fittings, potentially causing pipe rupture.

Uploaded by: Fani Warraich

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