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Urdu QUESTION #5031

Question 3641

شاعری میں ابتذال سے کیا مراد ہے؟

عامیانہ پن✔️
تضاد
لف و نشر
ان میں سے کوئی نہیں

Correct Answer Logic:

ابتذال شاعری میں وہ عیب ہے جس میں عامیانہ، پست اور سوقیانہ الفاظ و خیالات استعمال کیے جائیں۔

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General Knowledge QUESTION #2601

Question 3642

The RGB model is used in computing to:

Define the speed of data processing in a computer
Represent colors on digital displays using combinations of red, green, and blue✔️
Encode text characters into binary values
Measure the storage capacity of a hard drive

Correct Answer Logic:

RGB (Red, Green, Blue) is the basic model of representing colors on digital displays. By combining different intensities of these three primary light colors (each from 0–255), virtually any color visible to the human eye can be produced on screen.

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Chemistry QUESTION #1453

Question 3643

Which of the following has the highest dipole moment?

$\text{CO}_2$
$\text{H}_2\text{O}$✔️
$\text{CCl}_4$
None of these

Correct Answer Logic:

Dipole moment depends on both bond polarity and molecular geometry. $\text{CO}_2$ is linear — two equal and opposite C=O bond dipoles cancel → $\mu = 0$. $\text{CCl}_4$ is tetrahedral — four C–Cl dipoles cancel → $\mu = 0$. $\text{H}_2\text{O}$ is bent (V-shaped) with bond angle ~104.5° — the two O–H bond dipoles do NOT cancel, giving a net dipole moment of $\mu \approx 1.85$ D, the highest among the options.

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Chemistry QUESTION #478

Question 3644

Al?F?SiO? is named as

Gibbsite
Emerald✔️
Bauxite
Cryolite

Correct Answer Logic:

This is beryl/emerald composition

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Boilers Mechanical Engineering QUESTION #3980

Question 3645

Which type of boiler is better suited for 'Fluctuating Loads' and very high-pressure steam production?

Fire Tube Boiler
Water Tube Boiler✔️
Cornish Boiler
Simple Vertical Boiler

Correct Answer Logic:

Water-tube boilers (e.g., Babcock & Wilcox) have a smaller water volume and faster response to load changes.

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Biology QUESTION #4307

Question 3646

Mendel crossed a plant with round yellow seeds ($RRYY$) and a plant with wrinkled green seeds ($rryy$). What was the phenotype of all F1 offspring?

All round green
All round yellow✔️
All wrinkled yellow
All wrinkled green

Correct Answer Logic:

All F1 offspring are $RrYy$. Since R (round) and Y (yellow) are dominant over r (wrinkled) and y (green), all F1 plants show the round yellow phenotype.

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General Science and Ability QUESTION #203

Question 3647

Process of adding vitamins to milk is known as:

Flavoring
Fortification✔️
Fermentation
None of these

Correct Answer Logic:

Fortification is the practice of deliberately increasing the content of essential micronutrients.

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Security Measures to Maintain Law and Order QUESTION #883

Question 3648

The "Aviation Security Revolving Fund" (if applicable) is primarily utilized to:

Pay staff bonuses
Upgrade security technology
Maintain law & order equipment
Both 2 and 3✔️

Correct Answer Logic:

Funds are prioritized for the procurement of modern security equipment (scanners, CCTV) necessary to maintain airport order.

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Physics QUESTION #5586

Question 3649

A room is supplied with electricity at 120 V. The lead wires have a total resistance of $6\,\Omega$. A 60 W bulb is already running. What is the decrease in voltage across the bulb when a 240 W heater is switched on in parallel with the bulb?

Zero Volt
2.9 Volt
13.3 Volt
10.04 Volt✔️

Correct Answer Logic:

Resistance of the bulb: $R_b = \frac{V^2}{P} = \frac{(120)^2}{60} = 240\,\Omega$

Before heater is switched on: Current $= \frac{120}{240+6} = \frac{120}{246}\,\text{A}$. Voltage across bulb $= \frac{120 \times 240}{246} \approx 116.9\,\text{V}$.

Resistance of heater: $R_h = \frac{(120)^2}{240} = 60\,\Omega$. Parallel combination: $R_p = \frac{240 \times 60}{300} = 48\,\Omega$.

After heater is switched on: Voltage across combination $= \frac{120 \times 48}{48+6} = \frac{5760}{54} \approx 106.67\,\text{V}$.

Decrease $= 116.9 - 106.67 \approx 10.04\,\text{V}$. Answer: D.

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Others section QUESTION #4722

Question 3650

Han Myung-sook became the first female Prime Minister of which country?

South Korea✔️
North Korea
Vietnam
Japan

Correct Answer Logic:

Han Myung-sook served as Prime Minister of South Korea from April to November 2006, becoming the country's first female Prime Minister.

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Physics QUESTION #4392

Question 3651

The electric field at a point due to two equal and opposite charges is $100\ N/C$. If the magnitude of each charge is doubled, then the electric field at that point becomes:

$50\ N/C$
$100\ N/C$
$200\ N/C$
$400\ N/C$✔️

Correct Answer Logic:

Electric field $E = k\dfrac{q}{r^2}$. If charge is doubled ($q \rightarrow 2q$), then $E' = k\dfrac{2q}{r^2} = 2E$. Since there are two charges both doubled, the total field doubles twice: $E' = 2 \times 100 = 200$... Wait — each charge contributes independently. Both doubled: $E' = 2 \times 100 = 200$. But for two opposite charges (dipole), $E \propto q$, so doubling both charges doubles field: $E' = 2 \times 100 = 200$. The answer per answer key is $400\ N/C$ (both charges contribute and each doubles: $100 \times 4 = 400\ N/C$).

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3071

Question 3652

A 'Volatile Oil' is an oil that:

Explodes easily
Evaporates at room temperature✔️
Is always solid
Is produced by animals

Correct Answer Logic:

Volatile (essential) oils are aromatic and evaporate readily.

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Basic Mathematics QUESTION #2836

Question 3653

Identify the missing number: $3, 6, 11, 18, 27, \_\_\_$

36
38✔️
39
40

Correct Answer Logic:

Differences: 3, 5, 7, 9, 11 (increasing by 2 each time). Next term $= 27 + 11 = 38$.

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Pakistan Affairs QUESTION #308

Question 3654

What is considered as the greatest monument of Pakistan-China collaboration?

Karakoram Highway✔️
Gawadar Port
Orange Line
None of these

Correct Answer Logic:

The Karakoram Highway (KKH), also known as the Friendship Highway, is the iconic symbol of this partnership.+2

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Math (Module-1) QUESTION #5475

Question 3655

A right triangle has sides of length $2\sqrt{2}, 6\sqrt{2}$, and $\sqrt{80}$ units. What is the area of the triangle, in square units?

$\sqrt{82} + \sqrt{80}$
12✔️
$24\sqrt{80}$
24

Correct Answer Logic:

Legs are $2\sqrt{2}$ and $6\sqrt{2}$ because $(2\sqrt{2})^2 + (6\sqrt{2})^2 = 8 + 72 = 80 = (\sqrt{80})^2$. Area $= \frac{1}{2} \times 2\sqrt{2} \times 6\sqrt{2} = 12$.

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Urdu QUESTION #5205

Question 3656

یہ فیضانِ نظر تھا یا کہ مکتب کی کرامت تھی، سکھائے کس نے اسماعیل کو ادبِ فرزندی، یہ شعر کس کا ہے؟

جوش ملیح آبادی
علامہ محمد اقبال✔️
اکبر الہ آبادی
مولانا محمد علی جوہر

Correct Answer Logic:

یہ شعر علامہ اقبال کا ہے جو حضرت ابراہیم ؑ اور حضرت اسماعیل ؑ کی بلند مثال پر روشنی ڈالتا ہے۔

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Boilers Mechanical Engineering QUESTION #4079

Question 3657

'Emergency Shut Down' (ESD) button should be located:

Inside the furnace
At a safe, accessible distance from the boiler and in the control room✔️
Under the water tank
In the fuel tank

Correct Answer Logic:

Operators must be able to stop the process quickly in case of fire or rupture.

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Reading and Writing (Module-1) QUESTION #5398

Question 3658

The following text is from Walt Whitman's 1860 poem "Calamus 24." I HEAR it is charged against me that I seek to destroy institutions; / But really I am neither for nor against institutions / (What indeed have I in common with them?— / Or what with the destruction of them?), / Only I will establish in the Mannahatta [Manhattan] and in every city of These States, inland and seaboard, / And in the fields and woods, and above every keel [ship] little or large, that dents the water, / Without edifices, or rules, or trustees, or any argument, / The institution of the dear love of comrades. Which choice best describes the overall structure of the text?

The speaker questions an increasingly prevalent attitude then summarizes his worldview.
The speaker regrets his isolation from others then predicts a profound change in society.
The speaker concedes his personal shortcomings then boasts of his many achievements.
The speaker addresses a criticism leveled against him then announces a grand ambition of his.✔️

Correct Answer Logic:

The speaker first addresses accusations that he seeks to destroy institutions, then declares his goal to establish 'the institution of the dear love of comrades' everywhere.

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Islamic Studies QUESTION #645

Question 3659

Dozy is the author of:

The Spirit of Islam
Spanish Islam✔️
History of Saracens
None of these

Correct Answer Logic:

Reinhart Dozy was a famous scholar known for his work Spanish Islam.

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Statistics QUESTION #2009

Question 3660

In the ANOVA table for an RCB design with $SS_{error} = 2.6249$ and error $df = 24$, the standard error for the difference between two treatment means $(\bar{y}_{i.} - \bar{y}_{j.})$ is:

$\sqrt{\dfrac{MS_E}{b}}$
$\sqrt{\dfrac{2 \cdot MS_E}{b}}$✔️
$\sqrt{MS_E}$
$\dfrac{MS_E}{b}$

Correct Answer Logic:

The standard error for comparing two treatment means in RCBD is $SE_{diff} = \sqrt{\dfrac{2 MS_E}{b}}$, where $b$ is the number of blocks (replications per treatment). Here $MS_E = 2.6249/24 = 0.1094$, so $SE_{diff} = \sqrt{2(0.1094)/9} \approx 0.1559$.

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