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The second battle was the Battle of Uhud fought in 3 AH (625 CE). It occurred after the Battle of Badr and before the Battle of Khandak. Although Muslims initially gained the upper hand, the battle ended inconclusively after some archers disobeyed orders and left their positions.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3156

Question 4145

Which organ is most active in children for the 'T-cell' maturation and immune development?

Spleen
Thymus✔️
Tonsils
Appendix

Correct Answer Logic:

The thymus gland shrinks (atrophies) after puberty.

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Math Physics Chemistry Biology QUESTION #817

Question 4146

The reactivity order of alkyl halides for a particular alkyl group is:

$\text{F} > \text{Cl} > \text{Br} > \text{I}$
$\text{I} > \text{Br} > \text{Cl} > \text{F}$✔️
$\text{Cl} > \text{Br} > \text{F} > \text{I}$
$\text{Br} > \text{I} > \text{Cl} > \text{F}$

Correct Answer Logic:

Reactivity of alkyl halides in nucleophilic substitution follows bond strength (C–X bond): C–I is weakest so iodide is most reactive. Order: $\text{I} > \text{Br} > \text{Cl} > \text{F}$.

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Math Physics Chemistry Biology QUESTION #4315

Question 4147

The main idea in Darwin's Theory of 'Origin of species by natural selection' is:

Inheritance of acquired traits
Use and disuse of organs
Species never change
Evolution occurs through gradual accumulation of adaptations through successive generations✔️

Correct Answer Logic:

Darwin's theory states that individuals with favorable heritable variations survive and reproduce better (natural selection), leading to gradual evolution of species over successive generations.

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Accounting & Finance QUESTION #6219

Question 4148

In an 'Operational Audit', the auditor focuses on 'Efficiency' and 'Effectiveness'. These criteria are often considered:

Clearly defined by International Financial Reporting Standards (IFRS)
Subjective and difficult to evaluate objectively✔️
Strictly limited to accounting and financial records
Mandated by the Companies Ordinance 1984 for all firms

Correct Answer Logic:

Efficiency and effectiveness are more difficult to evaluate objectively than compliance or financial presentation, making operational auditing more like management consulting.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3074

Question 4149

The term 'Proximal' describes a position that is:

Further from the point of attachment
Closer to the point of attachment✔️
Towards the midline
Away from the surface

Correct Answer Logic:

Proximal means nearer to the trunk or the point of origin of a part.

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Agronomy QUESTION #2077

Question 4150

Herbicides classified as ACCase (acetyl-CoA carboxylase) inhibitors are selective for:

Broad-leaved dicotyledonous weeds in cereal crops
Grass (monocot) weeds — because the ACCase enzyme in grasses is sensitive to these herbicides whereas the dicot ACCase is inherently tolerant, providing selectivity✔️
All weed species regardless of their photosynthetic pathway
Weeds with deep root systems and high water use

Correct Answer Logic:

ACCase inhibitors (FOPs — aryloxyphenoxypropionates, and DIMs — cyclohexanediones) inhibit the first committed step in fatty acid synthesis. The ACCase enzyme in grass plastids is sensitive to these herbicides while dicot ACCase is insensitive (different isoform), providing inherent biochemical selectivity. They control grasses post-emergence without harming dicot crops or weeds.

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General Knowledge QUESTION #8823

Question 4151

Bill Gates is the founder of which technology company?

AMD
Dell
HP
Microsoft✔️

Correct Answer Logic:

Bill Gates co-founded Microsoft.

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MCQs Section QUESTION #4898

Question 4152

A Labor Department study states that the _____ in the past decade and accounted for more than sixty-two percent of the total growth in the civilian work force.

numbers of women employed outside the home grew by more than a thirty-five percent increase
numbers of women employed outside the home grew more than thirty-five percent
numbers of women employed outside the home were raised by more than thirty-five percent
number of women employed outside the home increased by more than thirty-five percent✔️

Correct Answer Logic:

Singular 'number' is correct for a specific measured quantity. 'Increased by more than thirty-five percent' is concise and non-redundant. Options A and E are redundant ('grew by a thirty-five percent increase'). Options B and C use 'numbers' (plural) incorrectly for a singular measured count.

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Pakistan Affairs QUESTION #607

Question 4153

Who is the author of the book, 'The Charismatic leader: Quaid-i-Azam M.A. Jinnah and the Creation of Pakistan'?

Hector Bolitho
Sikandar Hayat✔️
I.H. Qureshi
None of these

Correct Answer Logic:

This book was authored by the historian Sikandar Hayat .

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Electrical Engineering QUESTION #2185

Question 4154

A $100\,\text{kVA}$, $11\,\text{kV}/400\,\text{V}$ transformer has iron losses $P_i = 500\,\text{W}$ and full-load copper losses $P_{cu} = 1200\,\text{W}$. The efficiency at half full-load and $0.8$ pf lagging is:

$98.0\%$✔️
$96.1\%$
$97.3\%$
$94.5\%$

Correct Answer Logic:

Output at half load $= 0.5\times100\times10^3\times0.8 = 40{,}000\,\text{W}$. Cu loss $= (0.5)^2\times1200 = 300\,\text{W}$. Iron loss $= 500\,\text{W}$ (constant). $\eta = \frac{40000}{40000+800}\times100 = \frac{40000}{40800} \approx 98.0\%$.

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General Abilities QUESTION #4613

Question 4155

If $a = 3b - 2$ and $b = 4$, what is $a$?

$10$✔️
$14$
$6$
$5$

Correct Answer Logic:

Substitute $b=4$: $a = 3(4) - 2 = 12 - 2 = 10$

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Physics QUESTION #409

Question 4156

A pipe varies uniformly in diameter from 2 m to 4 m. An incompressible fluid enters the pipe with velocity 16m/sec. What is velocity of fluid when it leaves the pipe?

64 m/sec
32 m/sec
8 m/sec
4 m/sec✔️

Correct Answer Logic:

Using continuity equation: A?v? = A?v?

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Physics QUESTION #1172

Question 4157

A charge moving in a uniform static magnetic field experiences:

A force perpendicular to magnetic field and velocity✔️
Increase in momentum
Decrease in momentum
Decrease in velocity

Correct Answer Logic:

The magnetic force on a moving charge is given by the Lorentz force: $\vec{F} = q(\vec{v} \times \vec{B})$. The cross product means the force is always perpendicular to both the velocity $\vec{v}$ and the magnetic field $\vec{B}$. Since the force is perpendicular to velocity, it does no work, so speed (and hence momentum magnitude and kinetic energy) remains unchanged.

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General Ability and Fire Fighting QUESTION #5592

Question 4158

Which of the following is an example of the 'Starving' method of fire extinguishment?

Applying CO2 gas to the fire
Turning off a gas valve✔️
Using a fire blanket
Spraying water on flames

Correct Answer Logic:

Starving a fire means removing the fuel source. Turning off a gas valve removes the fuel supply and therefore extinguishes the fire.

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Verbal Reasoning QUESTION #8155

Question 4159

Given that $x < y < z$, compare the following:

Quantity A: $\dfrac{x + y + z}{3}$

Quantity B: $y$

Quantity A is greater
Quantity B is greater
The two quantities are equal
The relationship cannot be determined from the information given✔️

Correct Answer Logic:

The expression $\dfrac{x+y+z}{3}$ is the arithmetic mean (average) of $x$, $y$, and $z$.

Since $x < y < z$, the mean lies strictly between the smallest and largest values. However, we cannot determine whether the mean is greater than, equal to, or less than $y$ (the middle value) without knowing the exact values.

Example 1: $x=1, y=2, z=3$. Mean $= 2 = y$. Equal.

Example 2: $x=1, y=2, z=10$. Mean $= 4.33 > y$. Quantity A greater.

Example 3: $x=1, y=9, z=10$. Mean $= 6.67 < y$. Quantity B greater.

Since different cases give different results, the relationship cannot be determined from the given information.

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Pakistan Affairs QUESTION #9063

Question 4160

Pakistan is located in which tropical zone?

South
North✔️
East
West

Correct Answer Logic:

Pakistan is north of the Equator (temperate/tropical north).

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