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General Knowledge QUESTION #2607

A staff member receives a suspicious email that appears to be from their bank, asking for their password. The fraudster who created this email used knowledge of hiding deceptive messages from victims. This misuse relates to which computing discipline?

Abstraction
Open Source
Cryptography✔️
ASCII Encoding

Correct Answer Logic:

Cryptography covers the practice of coding and hiding messages from third parties. Cybercriminals misuse this concept in phishing attacks — crafting deceptive messages disguised as legitimate communications to steal sensitive information. Awareness of cryptography helps identify such threats.

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Reading and Writing (Module-1) QUESTION #5398

Question 242

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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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3143

Question 243

The 'Epididymis' is the site where sperm:

Are produced
Mature and are stored✔️
Are mixed with alkaline fluid
Are destroyed

Correct Answer Logic:

Sperm spend about $20$ days in the epididymis to gain motility.

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Chemistry QUESTION #4366

Question 244

The value of Planck's constant is:

$6.6262 \times 10^{-30}\ J\cdot s$
$6.6262 \times 10^{-32}\ J\cdot s$
$6.6262 \times 10^{+34}\ J\cdot s$
$6.6262 \times 10^{-34}\ J\cdot s$✔️

Correct Answer Logic:

Planck's constant $h = 6.626 \times 10^{-34}\ J\cdot s$. It relates the energy of a photon to its frequency: $E = h\nu$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3524

Question 245

'Ayurveda' is the traditional system of medicine originating from:

Pakistan
India✔️
China
Egypt

Correct Answer Logic:

Ayurveda means 'The Science of Life' and is an ancient Indian system.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3216

Question 246

'Ovulation' is triggered by a sudden surge in which hormone?

Estrogen
Progesterone
Luteinizing Hormone (LH)✔️
Follicle Stimulating Hormone (FSH)

Correct Answer Logic:

The LH surge on day 14 of the cycle causes the release of the egg.

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Sociology QUESTION #1678

Question 247

Louis Althusser, in his structural Marxist reformulation of the theory of ideology, distinguished between 'Repressive State Apparatuses' (which operate primarily through force) and 'Ideological State Apparatuses' (which operate primarily through ideology). Which of the following correctly identifies examples of ideological rather than repressive state apparatuses?

The military, police, and prison system
Religion, education, and media — institutions that reproduce ruling-class ideology by securing the voluntary consent of the dominated✔️
The judicial system and its courts of law
Bureaucratic administrations and formal political party structures

Correct Answer Logic:

In 'Ideology and Ideological State Apparatuses' (1970), Althusser distinguishes between Repressive State Apparatuses (army, police, prisons — which operate through force) and Ideological State Apparatuses (religion, education, family, media, political parties — which operate through ideology, securing consent). Education was, for Althusser, the dominant ISA in capitalist societies.

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General Science and Ability QUESTION #246

Question 248

When day and night are equal?

23rd Feb & 21st Sept
21st March & 23rd Sept✔️
23rd March & 21st Sept
None of these

Correct Answer Logic:

These dates represent the spring and autumnal equinoxes.+2

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Library Sciences QUESTION #1521

Question 249

Which of the following best describes a 'gazetteer' as a geographical reference source?

A collection of road maps for travelers
A geographical dictionary providing descriptions of places, physical features, and statistical data✔️
An atlas of historical maps
A directory of geography professors

Correct Answer Logic:

A gazetteer is a geographical dictionary or index that provides names, locations, and descriptive or statistical information about places — including cities, rivers, mountains, and regions — and is distinct from an atlas (which is a collection of maps).

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Chemistry QUESTION #1080

Question 250

Match List-I with List-II for Xenon compounds: (A) XeO$_3$ (B) XeF$_2$ (C) XeOF$_4$ (D) XeF$_6$; with (I) sp$^3$d; linear (II) sp$^3$; pyramidal (III) sp$^3$d$^3$; distorted octahedral (IV) sp$^3$d$^2$; square pyramidal

A-IV, B-II, C-III, D-I
A-IV, B-II, C-I, D-III
A-II, B-I, C-IV, D-III✔️
A-II, B-I, C-III, D-IV

Correct Answer Logic:

XeO$_3$: 3 bond pairs + 1 lone pair → sp$^3$, pyramidal (II). XeF$_2$: 2 bond pairs + 3 lone pairs → sp$^3$d, linear (I). XeOF$_4$: 5 bond pairs + 1 lone pair → sp$^3$d$^2$, square pyramidal (IV). XeF$_6$: 6 bond pairs + 1 lone pair → sp$^3$d$^3$, distorted octahedral (III). Matching: A-II, B-I, C-IV, D-III.

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General Science and Ability QUESTION #195

Question 251

The amount of data transmitted for a given amount of time is called:

Noise
Bandwidth✔️
Frequency
None of these

Correct Answer Logic:

Bandwidth is the capacity of a wired or wireless network communications link.

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Biology QUESTION #4217

Question 252

Which of the following hormone is not produced in older women?

Estrogen✔️
Gastrin
Secretin
Renin

Correct Answer Logic:

Estrogen production decreases after menopause.

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Boilers Mechanical Engineering QUESTION #4034

Question 253

A 'Manhole' in a boiler is provided for:

Looking at the fire
Entry of a person for internal inspection and cleaning✔️
Filling the fuel
Letting air out

Correct Answer Logic:

Every large boiler must have access points for maintenance.

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Boilers Mechanical Engineering QUESTION #4082

Question 254

'Boiler Log Book' is a legal and technical record used to:

Write poems
Track daily readings, maintenance, and water chemistry for safety/legal proof✔️
Record the weight of the operator
List the price of steam

Correct Answer Logic:

In the event of an accident, the log book is the first thing investigators look at.

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Chemistry QUESTION #4355

Question 255

Amount of energy needed to weaken the existing bonds to an extent that can be broken through collision is called:

Bond energy
Activation energy✔️
Average energy
Enthalpy

Correct Answer Logic:

Activation energy ($E_a$) is the minimum energy required to break existing bonds and initiate a chemical reaction. It is the energy barrier that reactants must overcome.

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Biology QUESTION #568

Question 256

The African sleeping sickness is caused by __________

Entamoeba histolytica
Trypanosoma✔️
Zooflagellates
Ciliates

Correct Answer Logic:

Trypanosoma causes sleeping sickness

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Basic Mathematics QUESTION #4625

Question 257

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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Professional QUESTION #1866

Question 258

Under Rule 13, who can approve relaxation of the citizenship requirement for appointment?

Prime Minister
Ministry concerned
Establishment Division✔️
FPSC

Correct Answer Logic:

Rule 13 proviso states the citizenship requirement may be relaxed with the approval of the Establishment Division.

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Physics QUESTION #1026

Question 259

The kinetic energies of cars A and B are 100 J and 225 J. Car A stops after 1000 m and car B stops after 1500 m. The ratio $F_A/F_B$ is:

$\dfrac{1}{3}$
$\dfrac{1}{2}$✔️
$\dfrac{3}{2}$
$\dfrac{2}{3}$

Correct Answer Logic:

By work-energy theorem: $F \cdot d = KE$. So $F_A = \frac{100}{1000} = 0.1\ \text{N}$ and $F_B = \frac{225}{1500} = 0.15\ \text{N}$. Ratio: $\frac{F_A}{F_B} = \frac{0.1}{0.15} = \frac{2}{3}$. Wait: $\frac{0.1}{0.15}=\frac{2}{3}$. Answer is option (4) = $\frac{2}{3}$... re-checking: $\frac{100/1000}{225/1500}=\frac{0.1}{0.15}=\frac{2}{3}$. Correct option index: 3.

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Electrical Engineering QUESTION #2180

Question 260

A full-wave bridge rectifier with capacitor filter has $V_s = 220\,\text{V}$ (rms) at $50\,\text{Hz}$, $R_L = 1\,\text{k}\Omega$, and $C = 1000\,\mu\text{F}$. The approximate peak-to-peak ripple voltage is:

$3.11\,\text{V}$✔️
$6.22\,\text{V}$
$1.56\,\text{V}$
$12.4\,\text{V}$

Correct Answer Logic:

$V_{peak} = 220\sqrt{2} \approx 311\,\text{V}$. For a full-wave rectifier: $V_r = \frac{V_{peak}}{2fR_LC} = \frac{311}{2\times50\times1000\times10^{-3}} = \frac{311}{100} \approx 3.11\,\text{V}$.

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