Reading Mode - Questions

The Mean Value Theorem (Lagrange) guarantees existence of $c\in(a,b)$ such that $f'(c)=\dfrac{f(b)-f(a)}{b-a}$. This means the instantaneous rate of change equals the average rate of change over $[a,b]$.

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General Abilities QUESTION #2808

Question 906

What is the value of $(-3)^4 - (-2)^3$?

73
89✔️
81
89

Correct Answer Logic:

$(-3)^4 = 81$ (positive, since even exponent) and $(-2)^3 = -8$ (negative, since odd exponent). So $81 - (-8) = 81 + 8 = 89$.

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Pharmacology and Toxicology QUESTION #3862

Question 907

Which of the following statements regarding methadone is INCORRECT?

Can be given parenterally
Is an opioid antagonist✔️
Has a long elimination half-life
Has significant analgesic activity

Correct Answer Logic:

Methadone is a full opioid agonist, not an antagonist. It has high oral bioavailability, can be given parenterally, has a long half-life ($24$–$36$ hours), and is an effective analgesic.

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Reading and Writing (Module-1) QUESTION #5317

Question 908

Researchers observed that the bioluminescent glow of certain deep-sea jellyfish is not continuous but rather ______, occurring only when the organism is disturbed by a potential predator. Which choice completes the text with the most logical and precise word?

intermittent✔️
persistent
intense
ubiquitous

Correct Answer Logic:

Since the glow occurs 'only when disturbed,' it is not constant, thus it is 'intermittent.'

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Education QUESTION #7562

Question 909

The primary goal of teaching is considered to be:

To give information
To improve pupils in activities
To impart knowledge
Desirable change in behavior✔️

Correct Answer Logic:

The ultimate goal of teaching is to bring about a positive and desirable change in learners' behavior, knowledge, skills, attitudes, or values.

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Planning QUESTION #4987

Question 910

What is the recommended ratio of open space to built-up area in Clarence Perry's Neighborhood Unit?

1:1
1:2
1:3✔️
1:4

Correct Answer Logic:

Perry's Neighborhood Unit concept (1929) recommended approximately one-third of total area for parks, playgrounds, and open spaces, creating a 1:2 ratio with built-up area, ensuring adequate recreational facilities within walking distance (quarter-mile radius).

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Biology Zoology Botany QUESTION #1377

Question 911

Which organelle is involved in modifying, sorting, and packaging proteins for secretion?

Endoplasmic reticulum
Golgi apparatus✔️
Lysosome
Peroxisome

Correct Answer Logic:

The Golgi apparatus (Golgi complex) is the cell's main processing and distribution centre for proteins and lipids. Proteins synthesised in the rough endoplasmic reticulum are transported to the Golgi where they are modified (glycosylation, phosphorylation), sorted, and packaged into vesicles for secretion, delivery to lysosomes, or incorporation into the plasma membrane.

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Urdu QUESTION #5288

Question 912

پاکستان میں اردو کو قومی زبان کب قرار دیا گیا؟

1953
1954
1955
1956✔️

Correct Answer Logic:

پاکستان میں اردو کو 1956ء کے آئین کے ذریعے قومی زبان کا درجہ دیا گیا۔

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Ability / HR / Governance / Special Education QUESTION #1852

Question 913

Who is the appointing authority for posts in BPS 17 to 19?

Prime Minister
Secretary of the Ministry or Division concerned✔️
An officer notified by the Secretary
Establishment Division

Correct Answer Logic:

Rule 6(1) Table entry (2) specifies the Secretary of the Ministry or Division concerned as appointing authority for posts in BPS 17 to 19.

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Ability / HR / Governance / Special Education QUESTION #1854

Question 914

In Intelligence Bureau, who is the appointing authority for posts in BPS 1 to 16?

Director-General, Intelligence Bureau
Secretary Interior
PM Office
Officer(s) notified by the Director-General, Intelligence Bureau✔️

Correct Answer Logic:

Rule 6(2) Table entry 2(ii) specifies officer(s) notified by the Director-General, Intelligence Bureau as appointing authority for BPS 1-16 in IB.

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Chemistry QUESTION #5523

Question 915

Identify the reaction that is NOT part of the ozone layer depletion mechanism in the stratosphere.

$CF_2Cl_2(g) \xrightarrow{hv} \cdot Cl(g) + \cdot CF_2Cl(g)$
$Cl\dot{O}(g) + O(g) \rightarrow \cdot Cl(g) + O_2(g)$
$CH_4 + 2O_3 \rightarrow 3\,CH_2{=}O + 3H_2O$✔️
$HOCl(g) \xrightarrow{hv} \cdot OH(g) + \cdot Cl(g)$

Correct Answer Logic:

The ozone depletion cycle involves: (A) CFCs releasing Cl radicals under UV, (B) ClO reacting with O atom to regenerate Cl radical (chain propagation), (D) HOCl photolysis to give OH and Cl radicals — all are real steps. Option (C), the reaction of $CH_4$ with $O_3$ to give formaldehyde and water, is NOT a recognized step in stratospheric ozone depletion chemistry.

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Academic/Professional (Social Sciences) QUESTION #6492

Question 916

In sociology, 'Ethnocentrism' refers to:

Judging another culture by its own standards
Judging another culture by the standards of one's own culture✔️
The belief that all cultures are equal
The process of learning a new culture

Correct Answer Logic:

Ethnocentrism is the tendency to view one's own culture as superior and use it as a benchmark for others.

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Logical Reasoning QUESTION #4427

Question 917

What will come next in the series? $1,\ 4,\ 2,\ 5,\ 3,\ 6,\ 4,\ 7,\ ...$

5✔️
6
7
8

Correct Answer Logic:

The series has two interleaved sequences: Odd positions: $1,\ 2,\ 3,\ 4,\ ...$ (increasing by $1$) and Even positions: $4,\ 5,\ 6,\ 7,\ ...$ (increasing by $1$). The next term is in an odd position, continuing the sequence $1,\ 2,\ 3,\ 4,\ \mathbf{5}$. Answer: $5$.

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Civil Engineering QUESTION #6563

Question 918

An $n \times n$ matrix is said to be symmetric when:

It equals its own transpose✔️
Its determinant equals zero
It is of 2nd order
None of the above

Correct Answer Logic:

A matrix is symmetric if $A = A^T$, i.e., element $a_{ij} = a_{ji}$ for all $i$ and $j$.

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English QUESTION #2649

Question 919

Identify the tense: 'The sun sets in the west.'

Simple Present✔️
Present Continuous
Simple Past
Future Simple

Correct Answer Logic:

Simple Present is used for universal truths and habitual actions.

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Sociology QUESTION #1665

Question 920

Herbert Spencer adapted Darwinian evolutionary principles to the analysis of human societies, arguing that social progress results from competitive selection among individuals and groups. This perspective is most accurately identified as:

Survival of the fittest applied to social evolution and competition✔️
Class struggle as the engine of historical transformation
The development of social solidarity through collective consciousness
The progressive rationalization of social institutions

Correct Answer Logic:

Herbert Spencer's Social Darwinism applied the principle of 'survival of the fittest' (a phrase Spencer himself coined) to human society, arguing that social inequality and competition are natural and that social progress results from the elimination of the weak and the flourishing of the strong — a perspective later used to justify laissez-faire capitalism and imperialism.

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