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General Knowledge QUESTION #284

Question 2421

The 2023 SDG Summit took place in September 2023 in:

New York✔️
Washington DC
Chicago
None of these

Correct Answer Logic:

The summit was held at the UN Headquarters in New York.+1

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General Knowledge QUESTION #4790

Question 2422

According to Rousseau, legitimate political authority is based on which concept?

Slavery
Force
Social Contract✔️
Divine Right

Correct Answer Logic:

Jean-Jacques Rousseau argued in 'The Social Contract' (1762) that legitimate political authority derives from a social contract among citizens, not from divine right or force.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3440

Question 2423

'Ketone Bodies' (like Acetone) are produced when there is excessive metabolism of:

Glucose
Fats✔️
Proteins
Vitamins

Correct Answer Logic:

Common in untreated diabetes or very low-carb diets.

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Physics QUESTION #7229

Question 2424

The dimensional formula of angular momentum is:

$ML^2T^{-1}$✔️
$M^2L^2T^{-2}$
$M^1L^2T^{-3}$
$M^1L^3T^{-1}$

Correct Answer Logic:

Angular momentum $L = I\omega = mvr$ (for a particle)

$[L] = [m][v][r] = M \cdot LT^{-1} \cdot L = ML^2T^{-1}$

This is the same as the dimension of Planck's constant $h$, which makes sense since $E = h\nu$ and angular momentum appears in quantum mechanics through $\hbar = h/2\pi$.

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Biology Zoology Botany QUESTION #1365

Question 2425

A cross between an individual with an unknown genotype and a homozygous recessive individual is called a:

Back cross
Test cross✔️
Monohybrid cross
Dihybrid cross

Correct Answer Logic:

A test cross involves crossing an organism with an unknown genotype (possibly homozygous dominant or heterozygous) with a homozygous recessive individual (e.g., aa). The phenotypic ratio of offspring reveals the unknown genotype. If all offspring show the dominant phenotype, the unknown parent is homozygous dominant; if a 1:1 ratio appears, it is heterozygous.

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Physics and Math QUESTION #78

Question 2426

Asim is now three times as old as Irfan. After 10 years, Asim will be twice as old as Irfan. Asim’s at this time is:

40
30✔️
20
10

Correct Answer Logic:

Asim’s current age = 30 years.

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Education QUESTION #6706

Question 2427

When implementing cooperative learning, a teacher notices one student dominates while others remain passive. What is the PRIMARY cooperative learning principle being violated?

Positive interdependence
Individual accountability✔️
Equal participation structures
Group processing

Correct Answer Logic:

Individual accountability ensures each member is responsible for learning and contributing. Without structured accountability mechanisms (individual assessments, assigned roles, random selection for reporting), group work can become dominated by one member while others disengage.

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Chemistry QUESTION #1087

Question 2428

Total number of possible isomers (both structural and stereoisomers) of cyclic ethers of molecular formula $\text{C}_4\text{H}_8\text{O}$ is:

10✔️
11
6
8

Correct Answer Logic:

Cyclic ethers with formula C$_4$H$_8$O: (1) Oxetane ring with methyl substituents, (2) Tetrahydrofuran (THF) — 1 structure, (3) Oxetane + methyl: 2-methyloxetane (2 enantiomers), 3-methyloxetane (1), (4) Oxirane + ethyl/dimethyl: 2-ethyloxirane (2 enantiomers), 2,2-dimethyloxirane (1), 2,3-dimethyloxirane (cis+trans = 3). Total = 1+2+1+2+1+3 = 10.

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Urdu QUESTION #5149

Question 2429

وہ جملہ یا الفاظ کا مجموعہ جس میں ایک بامعنی لفظ کے ساتھ بے معنی یا غیر ضروری لفظ استعمال کیا جائے، کیا کہلاتا ہے؟

تابع مہمل✔️
مرکب اشاری
مرکب تابع مہمل
تابع موضوع

Correct Answer Logic:

تابع مہمل وہ لفظ ہے جو ایک بامعنی لفظ کے ساتھ آئے لیکن خود بے معنی ہو، جیسے چائے وائے۔

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Dairy Food Science and Technology QUESTION #5981

Question 2430

What is the function of rennet paste vs. liquid rennet or chymosin powder in traditional artisan cheese production?

Rennet paste provides only lipase activity, not proteolytic coagulation
Rennet paste from kid/lamb abomasum contains both chymosin (coagulation) and pregastric esterase (PGE, a lipase), developing characteristic sharp lipolytic flavor in Italian hard cheeses like Pecorino and Provolone✔️
Rennet paste has slower proteolytic activity but faster whey drainage
Rennet paste is used exclusively for soft cheeses like Camembert

Correct Answer Logic:

Traditional rennet paste (from kid/lamb stomachs) contains chymosin for milk coagulation PLUS pregastric esterase (PGE), a lipase that hydrolyzes short-chain fatty acids (particularly butyric acid at $sn$-3 position of triglycerides). This produces the characteristic peppery, piquant flavor of Italian artisan cheeses (Pecorino Romano, Provolone Piccante).

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Information Technology QUESTION #1135

Question 2431

Which mechanism allows a device to inform the CPU that it is ready for data transfer?

Polling
Interrupt✔️
DMA
None of these

Correct Answer Logic:

An interrupt is a signal sent by hardware to the CPU to request immediate attention, allowing the CPU to perform other tasks until the device is ready.

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English QUESTION #2721

Question 2432

Which word is a PRONOUN in the sentence: 'She gave him a gift.'?

She✔️
gave
gift
a

Correct Answer Logic:

'She' is a personal pronoun that replaces a noun (a person's name). 'Gave' is a verb, 'gift' is a noun, and 'a' is an article.

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Biology Zoology Botany QUESTION #1344

Question 2433

Most crustaceans have blue blood due to the presence of:

Haemoglobin
Erythrocruorin
Haemocyanin✔️
None of these

Correct Answer Logic:

Haemocyanin (haemocyanine) is a copper-containing respiratory pigment found in the blood (haemolymph) of most crustaceans (crabs, lobsters, shrimps) and molluscs. It appears blue when oxygenated because the copper atoms bind oxygen and cause the blue coloration, similar to how iron in haemoglobin gives blood its red color. Erythrocruorin is an iron-based pigment in some worms.

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Chemistry QUESTION #7424

Question 2434

For second period elements, the correct increasing order of first ionisation enthalpy is:

$\text{Li} < \text{Be} < \text{B} < \text{C} < \text{N} < \text{O} < \text{F} < \text{Ne}$
$\text{Li} < \text{B} < \text{Be} < \text{C} < \text{O} < \text{N} < \text{F} < \text{Ne}$
$\text{Li} < \text{B} < \text{Be} < \text{C} < \text{N} < \text{O} < \text{F} < \text{Ne}$
$\text{Li} < \text{Be} < \text{B} < \text{C} < \text{O} < \text{N} < \text{F} < \text{Ne}$✔️

Correct Answer Logic:

IE₁ anomalies in Period 2:

B < Be: Be (2s², full subshell) has higher IE₁ than B (2p¹, easier to remove)
O < N: N (2p³, half-filled, extra stable) has higher IE₁ than O (2p⁴, one paired electron easier to remove)

Correct order: Li < B < Be < C < O < N < F < Ne

Option (4) captures exactly these two inversions: Be before B is wrong; N before O is correct. Answer = option (2) per key. Li < B < Be < C < O < N < F < Ne.

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Reading and Writing (Module-1) QUESTION #5437

Question 2435

In Shakespeare's?King Lear, Lear tests his daughters' devotion and later regrets his actions. Which quotation best illustrates his regret?

"I am a man / more sinned against than sinning."
"This tempest will not give me leave to ponder / On things would hurt me more."
"Beat at this gate that let thy folly in / And thy dear judgement out!"✔️
"I will do such things... they shall be / The terrors of the earth!"

Correct Answer Logic:

Striking his head and blaming his own "folly" shows self-directed regret.

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MCQs Section QUESTION #4902

Question 2436

A majority of the international journalists surveyed view nuclear power stations as unsafe at present but _____ be made sufficiently safe in the future.

that they will, or could,
that they would, or could,
they will be or could
think the power stations would or could✔️

Correct Answer Logic:

The sentence requires a second verb parallel to 'view' — 'think' fills that role. It explicitly names 'the power stations' to avoid pronoun ambiguity and uses 'would or could' appropriately for a speculative future. Options A, B, and C lack the required parallel verb 'think,' creating a grammatical fragment.

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Math (Module-1) QUESTION #5389

Question 2437

A line in the $xy$-plane passes through the origin $(0, 0)$ and has a slope of $\frac{1}{7}$. Which of the following equations represents this line?

$y = x + 7$
$y = 7x$
$y = \frac{1}{7}x$✔️
$y = x + \frac{1}{7}$

Correct Answer Logic:

The slope-intercept form is $y = mx + b$. Here, $m = \frac{1}{7}$ and $b = 0$ (since it passes through the origin), giving $y = \frac{1}{7}x$.

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Boilers Mechanical Engineering QUESTION #2469

Question 2438

The wear load $F_w$ on a gear tooth (Buckingham equation) depends on which key gear geometry parameter related to the smaller gear?

$F_w \propto r_g^2$ (gear pitch radius squared)
$F_w = d_p B K Q$ where $d_p$ is the PINION pitch diameter✔️
$F_w \propto N_p/N_g$ (tooth ratio)
$F_w \propto P_d^2$ (diametral pitch squared)

Correct Answer Logic:

Buckingham's wear load: $F_w=d_p B K Q$, where $d_p$ is the pinion pitch diameter, $B$ is face width, $K$ is the stress-fatigue factor, and $Q=2N_g/(N_p+N_g)$ is the ratio factor.

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Reading and Writing (Module-1) QUESTION #5316

Question 2439

Ecologists have long noted that different species in an ecosystem often occupy distinct niches to avoid direct competition. This process, known as niche partitioning, ensures that resources are used ______ by the various inhabitants. Which choice completes the text with the most logical and precise word?

efficiently✔️
randomly
sparingly
equally

Correct Answer Logic:

Niche partitioning allows resources to be distributed in a way that minimizes waste and competition, making 'efficiently' the best fit.

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Journalism / Mass Communication QUESTION #6366

Question 2440

The first Indian sound film, Alam Ara (1931), directed by Ardeshir Irani, was significant for multiple reasons. Which of the following is the MOST historically accurate statement about this film?

It was the first film shot in colour in the Indian subcontinent
It was the first Indian film with a soundtrack, released on March 14, 1931, and contained seven songs✔️
It was the first film produced in Pakistan after independence
It was the first silent film produced in the subcontinent

Correct Answer Logic:

Alam Ara (1931), directed by Ardeshir Irani for Imperial Film Company, holds the distinction of being India's first talkie film (a film with a recorded sound track). It was released on 14 March 1931 at Bombay's Majestic Cinema. The film was 10,500 feet long, ran for seven weeks, contained seven songs, and was a romantic costume drama. Its success proved that there was a huge market for “talkies and musicals,” and the entire film industry quickly switched to sound production. Note: Ardeshir Irani also directed Kisan Kanya (1937), which was the first colour film (Option A is therefore incorrect). The first silent feature film of the subcontinent was Raja Harishchandra (1913) by Dadasaheb Phalke. The first Pakistani film after independence was Teri Yaad (1948).

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