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Urdu QUESTION #5148

Question 3901

ترقی پسند تحریک کا آغاز کب ہوا؟

1936✔️
1915
1930
1932

Correct Answer Logic:

ترقی پسند تحریک کا باضابطہ آغاز 1936ء میں لکھنؤ میں ہوا جب پہلا اجلاس ہوا اور پریم چند نے صدارت کی۔

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Architecture QUESTION #2338

Question 3902

In airport terminal design, the distance beyond which assisted passenger movement (travellators, light rail, or buses) is required is:

Over 100 m
Over 200 m
Over 300–400 m✔️
Over 500 m

Correct Answer Logic:

The Architects' Handbook states travel distances of up to 300–400 m are acceptable on foot. Beyond that, assisted movement is required: travellators for 300–1000 m, light rail systems for 1–3 km, and buses for complex multi-stop journeys such as terminal to satellite via the apron.

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Security Measures to Maintain Law and Order QUESTION #944

Question 3903

What is the purpose of 'Explosive Trace Detection' (ETD)?

To find stolen money
To detect vapors or particles of explosives✔️
To weigh heavy bags
To check for narcotics

Correct Answer Logic:

ETD technology can find microscopic traces of explosives that are invisible to the naked eye.

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Chemistry QUESTION #5567

Question 3904

Arrange the following substituted phenols in decreasing order of acidity: (I) 4-chlorophenol, (II) 4-methylphenol, (III) 4-nitrophenol, (IV) 4-methoxyphenol

II > IV > I > III
I > II > III > IV
III > I > IV > II✔️
IV > III > I > II

Correct Answer Logic:

Acidity of phenols increases with electron-withdrawing groups (EWG) and decreases with electron-donating groups (EDG). $NO_2$ (strong EWG) makes phenol most acidic; $Cl$ (weak EWG); $CH_3$ and $OCH_3$ are EDGs (reduce acidity). Order of decreasing acidity: III ($NO_2$) > I ($Cl$) > II ($CH_3$) > IV ($OCH_3$), i.e., C is correct.

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Medicinal Chemistry and Biopharmaceutics QUESTION #3826

Question 3905

What functional role do stearyl alcohol and cetyl alcohol serve when incorporated as excipients in pharmaceutical formulations?

Preservatives
Emulsifiers✔️
Binding agents
Surfactants

Correct Answer Logic:

Stearyl alcohol and cetyl alcohol are fatty alcohols that act as emulsifiers and emollient stabilisers in creams and ointments, helping to form and stabilise water-in-oil or oil-in-water emulsions.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3123

Question 3906

The 'Glomerulus' is a network of capillaries primarily involved in:

Reabsorption
Filtration✔️
Secretion
Storage

Correct Answer Logic:

Blood is filtered in the glomerulus under high pressure.

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English QUESTION #2769

Question 3907

What does the idiom 'SPILL THE BEANS' mean? (Note: An idiom is a phrase with a figurative meaning different from its literal meaning)

To cook a meal
To make a mess
To reveal a secret✔️
To waste food

Correct Answer Logic:

'Spill the beans' is an idiom meaning to reveal secret or confidential information, usually by accident. Example: 'Don't spill the beans about the surprise party!'

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Chemistry QUESTION #1015

Question 3908

Toluene (excess) is treated with $\text{CrO}_2\text{Cl}_2$, $\text{CS}_2$, then $\text{H}_3\text{O}^+$, then $\text{NaHSO}_3$ to give Residue (A). Residue (A) + HCl (dil) $\to$ Compound (B). Structure of Residue (A) and Compound (B) respectively is:

[A] = benzaldehyde (CHO), [B] = sodium benzoate (COONa)
[A] = benzaldehyde bisulphite (PhCH(OH)SO$_3$Na), [B] = benzaldehyde
[A] = $\text{CH(OCrOHCl}_2)_2$ (chromate acetal), [B] = benzaldehyde
[A] = bisulphite addition product ($\text{PhCH(OH)SO}_3\text{Na}$), [B] = benzaldehyde (PhCHO)✔️

Correct Answer Logic:

Etard reaction: toluene $+\text{CrO}_2\text{Cl}_2\to$ chromium complex $\xrightarrow{\text{H}_3\text{O}^+}$ benzaldehyde. Benzaldehyde $+\text{NaHSO}_3\to$ bisulphite addition product (Residue A). Bisulphite adduct $+\text{HCl}\to$ benzaldehyde regenerated (Compound B). So A = bisulphite adduct, B = benzaldehyde.

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Basic Mathematics QUESTION #4621

Question 3909

What is $20\%$ of $20\%$ of $100$?

$4$✔️
$40$
$20$
$8$

Correct Answer Logic:

$20\%$ of $100 = 20$. Then $20\%$ of $20 = 0.2 \times 20 = 4$

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Urdu QUESTION #5117

Question 3910

'تم مرے پاس ہوتے ہو گویا جب کوئی دوسرا نہیں ہوتا' یہ شعر کس کا ہے؟

غالب
مومن خان مومن✔️
فیض احمد فیض
ان میں سے کوئی نہیں

Correct Answer Logic:

یہ مشہور شعر مومن خان مومن کا ہے جو اردو غزل کے بڑے استادوں میں شمار ہوتے ہیں۔

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City and Regional Planning QUESTION #4922

Question 3911

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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Basic Mathematics QUESTION #2819

Question 3912

Divide Rs. 4500 among A, B, and C in the ratio $3:4:5$.

A=Rs.900 B=Rs.1200 C=Rs.1500
A=Rs.1000 B=Rs.1500 C=Rs.2000
A=Rs.1125 B=Rs.1500 C=Rs.1875✔️
A=Rs.1200 B=Rs.1500 C=Rs.1800

Correct Answer Logic:

Total parts $= 3 + 4 + 5 = 12$. A $= \dfrac{3}{12} \times 4500 = 1125$, B $= \dfrac{4}{12} \times 4500 = 1500$, C $= \dfrac{5}{12} \times 4500 = 1875$.

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Computer Science QUESTION #1120

Question 3913

What is the main purpose of using Trojans?

To get passwords✔️
To delete data
To corrupt files
None of these

Correct Answer Logic:

While Trojans can do many things, they are primarily designed to provide a "backdoor" to hackers to steal sensitive information like passwords and credit card data.

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Reading and Writing (Module-1) QUESTION #5407

Question 3914

Mycorrhizal fungi in soil benefits many plants, substantially increasing the mass of some. A student conducted an experiment to illustrate this effect. The student chose three plant species for the experiment, including two that are mycorrhizal hosts (species known to benefit from mycorrhizal fungi) and one nonmycorrhizal species (a species that doesn't benefit from and may even be harmed by mycorrhizal fungi). The student then grew several plants from each species both in soil containing mycorrhizal fungi and in soil that had been treated to kill mycorrhizal and other fungi. After several weeks, the student measured the plants' average mass and was surprised to discover that _______. Which choice most effectively uses data from the table to complete the statement?

broccoli grown in soil containing mycorrhizal fungi had a slightly higher average mass than broccoli grown in soil that had been treated to kill fungi.✔️
corn grown in soil containing mycorrhizal fungi had a higher average mass than broccoli grown in soil containing mycorrhizal fungi.
marigolds grown in soil containing mycorrhizal fungi had a much higher average mass than marigolds grown in soil that had been treated to kill fungi.
corn had the highest average mass of all three species grown in soil that had been treated to kill fungi while marigolds had the lowest.

Correct Answer Logic:

The student would be surprised that broccoli (a nonmycorrhizal species) had slightly higher mass with fungi (7.5g vs 7g), contradicting the expectation that fungi wouldn't help or might harm it.

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Mathematics QUESTION #4115

Question 3915

Consider vectors $\mathbf{a} = (1, 2, 3)$, $\mathbf{b} = (2, 5, 7)$, $\mathbf{c} = (1, 3, 5)$ in $\mathbb{R}^3$. Compute $\det \begin{pmatrix} 1 & 2 & 1 \ 2 & 5 & 3 \ 3 & 7 & 5 \end{pmatrix}$. What does this indicate?

Determinant is $0$, vectors are linearly dependent
Determinant is $1$, vectors are linearly independent✔️
Determinant is $-1$, vectors are linearly independent
Determinant is $2$, vectors are linearly dependent

Correct Answer Logic:

$\det = 1(25-21) - 2(10-9) + 1(14-15) = 4 - 2 - 1 = 1 \neq 0$. Since determinant is non-zero, the vectors are linearly independent.

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General Knowledge QUESTION #2624

Question 3916

THERMAL PASTE is used in a computer to:

Lubricate the moving parts inside a hard disk drive
Better connect the CPU and heat sink so heat transfers more efficiently between them✔️
Protect the motherboard from electrical surges and short circuits
Improve the connection speed between RAM and the CPU

Correct Answer Logic:

Thermal paste is a substance used to better connect our CPU and heat sink so that heat transfers from one to the other more efficiently. It fills microscopic gaps between the CPU surface and the heatsink base, improving thermal conductivity and cooling effectiveness.

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Basic Mathematics QUESTION #4625

Question 3917

A number is multiplied by $4$ and then divided by $2$. The result is $18$. What is the number?

$9$✔️
$4.5$
$36$
$72$

Correct Answer Logic:

Let number be $x$. $\frac{4x}{2} = 18 \Rightarrow 2x = 18 \Rightarrow x = 9$

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Physics QUESTION #4385

Question 3918

A $0.5\ kg$ ball moving at $6\ m/s$ has kinetic energy:

$9\ J$✔️
$18\ J$
$6\ J$
$3\ J$

Correct Answer Logic:

$KE = \dfrac{1}{2}mv^2 = \dfrac{1}{2} \times 0.5 \times (6)^2 = \dfrac{1}{2} \times 0.5 \times 36 = 9\ J$.

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Agronomy QUESTION #2084

Question 3919

A moldboard plow is agronomically superior to a disc plow for primary tillage in soils that are:

Sandy with low organic matter and prone to wind erosion
Heavy clay or loam soils with thick crop residues, where the moldboard's inversion action effectively buries residues, controls perennial weeds, and breaks compacted layers — though it increases erosion risk on sloping land✔️
Light sandy soils where minimal soil disturbance is needed
Waterlogged for extended periods requiring subsoil drainage

Correct Answer Logic:

The moldboard plow inverts the furrow slice completely (150–180° rotation), burying surface residues, weed seeds, and crop stubble effectively. It excels in heavy-textured soils with dense residues and perennial weeds. Its limitation is leaving bare soil exposed to erosion. Disc plows cut and partially invert soil, better suited to hard, dry, stony soils where moldboards would break.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3107

Question 3920

Where does the actual gas exchange ($O_2$ and $CO_2$) occur in the lungs?

Trachea
Bronchi
Alveoli✔️
Pharynx

Correct Answer Logic:

Alveoli are tiny air sacs with thin walls optimized for diffusion.

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