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MCQs Section QUESTION #4867

Choose the correct antonym of "CAPRICIOUS"

Firm
Decided
Inflexible
Constant✔️

Correct Answer Logic:

Capricious means given to sudden and unaccountable changes of mood or behavior. Its antonym is 'constant,' meaning unchanging and steady in behavior or opinions.

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Information Technology QUESTION #1130

Question 1542

What is the time complexity of searching for an element in a hash table?

O(1)✔️
O(n)
O(nlogn)
None of these

Correct Answer Logic:

In an ideal scenario (with a good hash function and minimal collisions), the average time complexity for searching in a hash table is constant time, O(1).

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Education QUESTION #6888

Question 1543

In designing outdoor activities as part of the curriculum, which of the following is a PREREQUISITE condition that must be satisfied before any outdoor activity can be undertaken, according to sound classroom management principles?

Students must first demonstrate exemplary classroom behavior for a defined period
Outdoor activities must be manageable, age-appropriate, aligned with curriculum objectives, and preceded by student training✔️
The principal must personally approve every outdoor activity before it is conducted
Parental consent must be individually obtained for each outdoor excursion

Correct Answer Logic:

Outdoor activities are a legitimate part of the curriculum but require careful management prerequisites: they must be safe, developmentally appropriate, curriculum-aligned, time-bound, and students must receive prior preparation. Teachers must also be trained to handle outdoor contexts. These conditions collectively prevent the loss of control that can occur outside the structured classroom.

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Nursing QUESTION #9257

Question 1544

A nurse is preparing to administer the pentavalent vaccine to a 6-week-old infant as per Pakistan's Expanded Programme on Immunization (EPI) schedule. The pentavalent vaccine protects against which combination of diseases?

Diphtheria, Tetanus, Pertussis, Polio, Measles
Diphtheria, Tetanus, Pertussis, Hepatitis B, Haemophilus influenzae type b (Hib)✔️
Tuberculosis, Polio, Tetanus, Hepatitis B, Measles
Diphtheria, Tetanus, Pertussis, Pneumococcal, Rotavirus

Correct Answer Logic:

Pakistan EPI Schedule (current):

Age	Vaccines
Birth	BCG, OPV-0, Hepatitis B (birth dose)
6 weeks	Pentavalent (DTP-HepB-Hib), OPV-1, PCV-1, Rotavirus-1, IPV-1
10 weeks	Pentavalent-2, OPV-2, PCV-2, Rotavirus-2
14 weeks	Pentavalent-3, OPV-3, PCV-3, IPV-2
9 months	Measles-1, Vitamin A (1st dose)
15 months	Measles-2 (MMR)

Pentavalent vaccine = 5-in-1 vaccine protecting against:

Diphtheria
Tetanus
Pertussis (whooping cough)
Hep B (Hepatitis B)
Hib (Haemophilus influenzae type b)

Contraindications: Previous anaphylaxis to vaccine component, progressive neurological disorder (for pertussis component), severe febrile illness (defer, not contraindicate).

Cold chain: Pentavalent stored at $2{-}8°C$; never frozen (freeze-sensitive).

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Journalism / Mass Communication QUESTION #6392

Question 1545

The concept of static meanings in language refers to which communication problem?

The meaning of words changes so rapidly that communication becomes impossible within a few years
Words become attached to people or situations and continue to carry those meanings long after circumstances have changed, because language lacks a dynamic mechanism for updating associations✔️
Static meanings are beneficial because they provide stability and predictability in communication
Static meanings refer to the way religious texts preserve the original meaning of words across millennia

Correct Answer Logic:

Static meanings is one of the behaviours of language that the textbook identifies as a communication problem. Languages attach meanings to words and associate characteristics with people, places, or groups — and these associations can persist long after they are no longer accurate or fair. The textbook gives these illustrative examples:

A university classmate once regarded as “nuts” is still referred to as such by friends even years after he has matured and changed
A traveller cheated once in a foreign country continues to call all people of that nation “cheats” decades later
Historical ruling tribes described with certain characteristics have their descendants judged by those same labels for generations

This is contrasted with natural sciences like physics or chemistry, where measurements change objectively as conditions change. Language has no such automatic update mechanism — human bias preserves outdated associations, harming communication and perpetuating injustice.

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Geology QUESTION #10657

Question 1546

Which of the following can serve as raw material for the manufacture of Portland cement?

Limestone
Iron ore (hematite)
Marine shells (calcium carbonate)
All of these✔️

Correct Answer Logic:

Portland cement is manufactured by heating a mixture of calcium carbonate ($\text{CaCO}_3$) and silica/alumina/iron sources. Suitable raw materials include:

Limestone (most common CaCO₃ source)
Marine shells (also CaCO₃)
Hematite/iron ore (iron source for the iron phase in cement clinker)

The kiln product (clinker) contains alite (C₃S), belite (C₂S), aluminate (C₃A), and ferrite (C₄AF) phases. All three options are valid raw materials.

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Chemistry QUESTION #7125

Question 1547

Identify the absolute configuration ($R/S$) for the chiral centers at positions 2 and 3 in the following Fischer projection: $CO_{2}H$ at top, $H$ and $OH$ on C2, $H$ and $Cl$ on C3, and $CH_{3}$ at bottom.

$(2S, 3R)$✔️
$(2S, 3S)$
$(2R, 3R)$
$(2R, 3S)$

Correct Answer Logic:

At C2: Priority order is $-OH > -COOH > -C(H)(Cl)CH_3 > -H$. The sequence is counter-clockwise, but since $H$ is on the horizontal line, it is 2S.
At C3: Priority order is $-Cl > -CH(OH)COOH > -CH_3 > -H$. The sequence is clockwise, but with $H$ on the horizontal line, it is 3R.

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General Knowledge QUESTION #11585

Question 1548

What key combination cuts selected text or files to the clipboard?

Ctrl + C
Ctrl + V
Ctrl + X✔️
Ctrl + K

Correct Answer Logic:

Ctrl+X cuts selected text, files, or objects — removing them from the current location and placing them on the clipboard for pasting elsewhere. The universal clipboard shortcuts: Ctrl+C = Copy (copies without removing), Ctrl+X = Cut (copies and removes), Ctrl+V = Paste (inserts from clipboard).

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Aptitude QUESTION #11020

Question 1549

A figure consists of a square with both its diagonals drawn. How many total triangles are present in the figure?

$4$
$6$
$8$✔️
$10$

Correct Answer Logic:

A square with both diagonals contains $8$ triangles: $4$ small triangles formed by the intersecting diagonals, and $4$ larger triangles each using one side of the square and half of each diagonal.

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Geology QUESTION #10639

Question 1550

Which of the following processes represents chemical weathering?

Spheroidal weathering
Hydrolysis and hydration✔️
Thermal expansion and contraction
Frost wedging (freeze-thaw)

Correct Answer Logic:

Hydrolysis (reaction of minerals with water, breaking chemical bonds) and hydration (incorporation of water molecules into mineral structure, e.g. anhydrite → gypsum) are classic chemical weathering processes that alter mineral composition. Spheroidal weathering involves corners and edges weathering faster — it is a form of chemical weathering in appearance but driven by differential chemical attack. Thermal expansion and frost wedging are physical/mechanical weathering processes.

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General Knowledge QUESTION #8625

Question 1551

Who wrote the biography 'Quaid-i-Azam Jinnah - the story of a nation'?

M.A.H. Isphani
G. Allana✔️
Khalid Bin Saeed
Akbar S. Ahmed

Correct Answer Logic:

G. Allana authored this biography.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3228

Question 1552

'Metabolic Acidosis' occurs when the blood $pH$ falls below:

$7.45$
$7.35$✔️
$7.0$
$8.0$

Correct Answer Logic:

Acidosis is defined as $pH < 7.35$.

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Boilers Mechanical Engineering QUESTION #2491

Question 1553

A mechanism is defined in mechanism theory as:

Any collection of rigid bodies
A kinematic chain in which at least one link has been grounded (fixed to the frame)✔️
A chain with exactly one degree of freedom
A system with more links than kinematic pairs

Correct Answer Logic:

By Reuleaux's definition, a mechanism is a kinematic chain where at least one link is grounded (fixed) to the frame.

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Math Physics Chemistry Biology QUESTION #752

Question 1554

If intensity and frequency of light is doubled then emission of electrons is:

Doubled
Increases four times
Half
Same✔️

Correct Answer Logic:

In photoelectric effect the number of electrons depends on intensity not frequency. Doubling frequency does not increase electron count if it's already above threshold. The emission rate stays the same with respect to frequency change; doubling intensity doubles electrons but the net effect here is 'same' per the paper's answer.

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Civil Procedure QUESTION #3734

Question 1555

A defendant is acquitted of murder in state court. Can the federal government later charge the defendant with 'violating the victim's civil rights' based on the same killing without violating Double Jeopardy?

No, Double Jeopardy prevents being tried twice for the same act.
Yes, under the 'Dual Sovereignty' doctrine.✔️
No, unless new evidence is discovered.
Yes, but only if the first trial was a bench trial.

Correct Answer Logic:

The 'Dual Sovereignty' doctrine allows different sovereign entities (State and Federal) to prosecute a person for the same conduct if it violates the laws of both sovereigns.

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Psychology QUESTION #9851

Question 1556

In essence, defense mechanisms are:

Defenses against anxiety✔️
Ways of convincing others of one's rightness
Escape reactions
Conscious self-deceptions

Correct Answer Logic:

Defense mechanisms (Freud) are unconscious psychological strategies protecting the ego from anxiety arising from id-superego-reality conflicts. They operate unconsciously and are not deliberate deceptions or escape routes.

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Political Science QUESTION #6660

Question 1557

Which philosopher is known for the statement 'Man is by nature a political animal'?

Plato
Aristotle✔️
Hobbes
None of these

Correct Answer Logic:

Aristotle famously argued that human beings are meant to live in a 'polis' or city-state.

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Islamic Studies QUESTION #8254

Question 1558

Which was the first revealed divine book?

Torait✔️
Zabur
Anjeel
Holy Quran

Correct Answer Logic:

The Torah (Tawrat) revealed to Prophet Musa (Moses) AS is considered the first of the major revealed books, though scrolls (Suhuf) were given to earlier prophets like Ibrahim (AS). The four major revealed books in chronological order are: (1) Torah to Musa (AS), (2) Zaboor to Daud (AS), (3) Injeel (Gospel) to Isa (AS), and (4) Quran to Muhammad (PBUH). Muslims believe in all divine revelations but consider the Quran as the final and preserved scripture.

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