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MCQs Section QUESTION #5215

Question 1

دنیا میں زبانوں کے کتنے بڑے خاندان ہیں؟

5
14✔️
3
8

Correct Answer Logic:

ماہرینِ لسانیات کے مطابق دنیا میں زبانوں کے تقریباً 14 بڑے خاندان ہیں۔

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Education QUESTION #6760

Question 2

In constructing an effective matching exercise, a teacher has 6 premises in column A and 6 responses in column B, with a strict one-to-one matching rule. What key principle of matching exercise construction is being VIOLATED?

Using homogeneous content
Arranging responses in logical order
Providing an unequal number of responses and premises to reduce systematic guessing✔️
Placing shorter items in the response column

Correct Answer Logic:

One of the most important rules for constructing matching exercises is to include more responses than premises (or allow responses to be used more than once) so that the last premise cannot be answered by elimination. A strict one-to-one correspondence with equal numbers allows students to answer the final item through process of elimination, without any content knowledge.

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MCQs Section QUESTION #4830

Question 3

Select the word nearly similar in meaning to "IONIC"

Indian stone monument
Greek architecture✔️
Roman Sculpture
Mediterranean Sea

Correct Answer Logic:

Ionic refers to one of the classical orders of Greek architecture, characterized by scroll-shaped ornaments (volutes) on the capital of the column.

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Library Sciences QUESTION #1564

Question 4

In library automation, the MARC 21 format is used primarily for:

Designing library building layouts
Encoding bibliographic, authority, holdings, and community information in a machine-readable structure✔️
Providing digital access to rare manuscripts
Managing library staff payroll

Correct Answer Logic:

MARC 21 (Machine-Readable Cataloguing) is a standard format for encoding bibliographic and related data so that records can be created, stored, exchanged, and processed by computer systems. It is the backbone of shared cataloguing and ILS operations worldwide.

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Professional QUESTION #1843

Question 5

Under Section 22(2), where no provision for appeal or review exists under the rules, a civil servant aggrieved by any order may make a representation to the authority next above the authority which made the order. However, no representation shall lie on matters relating to what?

Determination of pay or allowances
Determination of fitness to hold a particular post or to be promoted to a higher post or grade✔️
Disciplinary action taken against the civil servant
Transfer orders issued by the appointing authority

Correct Answer Logic:

The proviso to Section 22(2) explicitly bars representations on matters relating to the determination of fitness of a person to hold a particular post or to be promoted to a higher post or grade. Fitness determinations are matters of discretion reserved for the competent authority and are not subject to representational challenge.

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General Knowledge QUESTION #4742

Question 6

The Mahbub ul Haq Human Development Centre is located in which city?

Karachi
Lahore
Islamabad✔️
Peshawar

Correct Answer Logic:

The Mahbub ul Haq Human Development Centre is located in Islamabad, Pakistan. It was founded by Dr. Mahbub ul Haq, who also developed the Human Development Index.

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Mathematics QUESTION #1304

Question 7

For $\vec{F}=\left(\dfrac{1}{2}xy^4,\;\dfrac{1}{2}x^4y\right)$, the quantity $\dfrac{\partial Q}{\partial x}-\dfrac{\partial P}{\partial y}$ needed for Green's Theorem equals:

$2x^3y-2xy^3$✔️
$x^3y-xy^3$
$2x^3y+2xy^3$
$x^3y+xy^3$

Correct Answer Logic:

Here $P=\dfrac{1}{2}xy^4$ and $Q=\dfrac{1}{2}x^4y$. $\dfrac{\partial Q}{\partial x}=\dfrac{1}{2}\cdot4x^3y=2x^3y$. $\dfrac{\partial P}{\partial y}=\dfrac{1}{2}\cdot4xy^3=2xy^3$. So $\dfrac{\partial Q}{\partial x}-\dfrac{\partial P}{\partial y}=2x^3y-2xy^3$.

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English Literature QUESTION #10699

Question 8

Who was the principal contributor to the development of the linguistic (historical/comparative) period in language study?

Bartlett
Piaget
Hermann Paul✔️
Chomsky

Correct Answer Logic:

Hermann Paul (1846–1921) was a leading figure of the Neogrammarian school, which dominated 19th-century historical-comparative linguistics. His major work Principien der Sprachgeschichte (Principles of Language History, 1880) systematised the study of language change. Chomsky belongs to the generative/transformational period; Piaget to cognitive development; Bartlett to memory psychology.

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Contracts QUESTION #5845

Question 9

A Buyer orally agrees to purchase a used car for $5,000. The Buyer pays a $500 deposit, which the Seller accepts. Is the contract enforceable?

No, because the total price is over $500 and there is no signed writing.
Yes, but only for $500 worth of the car.
Yes, the entire contract is enforceable because partial payment was accepted.✔️
No, unless the car is a 'unique' good.

Correct Answer Logic:

Under UCC §2-201(3)(c), a contract is enforceable with respect to goods for which payment has been made and accepted.

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Math Physics Chemistry Biology QUESTION #11254

Question 10

The main function of the large intestine is to:

Digest proteins
Absorb water and electrolytes✔️
Secrete digestive enzymes
Produce bile

Correct Answer Logic:

The large intestine primarily absorbs water, electrolytes, and vitamins (like vitamin K and B-complex produced by gut bacteria). It does not secrete digestive enzymes or produce bile.

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Math Physics Chemistry Biology QUESTION #4245

Question 11

This given organelle is involved in the synthesis of oil, phospholipids and steroids:

Mitochondria
Golgi complex
Endoplasmic reticulum✔️
Ribosomes

Correct Answer Logic:

Endoplasmic reticulum synthesizes lipids.

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Biology Zoology Botany QUESTION #10838

Question 12

TRH (Thyrotropin-Releasing Hormone) follows which type of cell-to-cell signalling?

Paracrine
Autocrine
Intracrine
Neurocrine✔️

Correct Answer Logic:

TRH is secreted by neurosecretory neurons of the hypothalamus and released into the hypothalamic-pituitary portal blood to act on thyrotroph cells of the anterior pituitary. This is neurocrine (neuroendocrine) signalling — a neuron secretes a chemical messenger that travels in blood to act on a distant endocrine target. This differs from classical paracrine (local) or autocrine (self) signalling.

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Physics QUESTION #7319

Question 13

A stone dropped from height $h$ hits the ground with momentum $P$. If the same stone is dropped from height $2h$ (100% more), the momentum on hitting the ground changes by approximately:

200%
100%
68%
41%✔️

Correct Answer Logic:

$v = \sqrt{2gh}$, so $P = mv = m\sqrt{2gh}$

New momentum: $P' = m\sqrt{2g(2h)} = \sqrt{2}\,P$

Percentage change $= (\sqrt{2}-1)\times 100 \approx 0.414 \times 100 = \mathbf{41\%}$

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Biology QUESTION #7236

Question 14

Which of the following features distinguishes conifers from grasses?

Absence of pollen tubes
Formation of endosperm before fertilization✔️
Production of seeds from ovules
Lack of xylem tracheids

Correct Answer Logic:

Conifers (gymnosperms) form endosperm before fertilization — this pre-fertilization endosperm (the female gametophyte tissue) is a key gymnosperm feature. In angiosperms (grasses), endosperm forms after fertilization (triple fusion). Both groups have pollen tubes, xylem tracheids, and seeds from ovules.

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Information Technology QUESTION #1140

Question 15

Which scheduling algorithm can lead to the 'Convoy Effect'?

Round Robin
Priority Scheduling
First-Come-First-Served (FCFS)✔️
Shortest Job First

Correct Answer Logic:

The Convoy Effect occurs in FCFS when a long-running process stays at the head of the queue, causing shorter processes to wait significantly longer.

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Chemistry QUESTION #445

Question 16

Sulphuric acid is used to manufacture

HCl and HNO?
H?PO?
Both A and B
Both HCl and 2COOH✔️

Correct Answer Logic:

H?SO? is used to make HCl, HNO?, and other acids

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Biology Zoology Botany QUESTION #1360

Question 17

What is the ploidy level of the endosperm in angiosperms?

Haploid (n)
Diploid (2n)
Triploid (3n)✔️
Tetraploid (4n)

Correct Answer Logic:

In angiosperms, the endosperm is formed by triple fusion — the fusion of two polar nuclei (each haploid, n) with one male gamete (n) — resulting in a triploid (3n) nucleus. The endosperm develops into a nutritive tissue that nourishes the developing embryo. This is a unique feature of double fertilization in angiosperms.

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Boilers Mechanical Engineering QUESTION #2553

Question 18

The second moment of area of a rectangle $b \times h$ about its centroidal axis parallel to $b$ is:

$\dfrac{bh^3}{3}$
$\dfrac{b^3h}{12}$
$\dfrac{bh^3}{12}$✔️
$\dfrac{bh^2}{6}$

Correct Answer Logic:

The centroidal second moment about the horizontal centroidal axis of a rectangle is $\bar{I}_x=\frac{bh^3}{12}$. The value $\frac{bh^3}{3}$ is about the base (bottom edge), obtained by the parallel-axis theorem.

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Pakistan Affairs QUESTION #126

Question 19

What is the total length of Pakistan's coastline?

758 km
1058 km✔️
1258 km
990 km

Correct Answer Logic:

The coastline of Pakistan is approximately 1058 km (sometimes cited as 1046 km) along the Arabian Sea.

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Mathematics QUESTION #1262

Question 20

Which of the following is the solution set of $x^2+x>2$?

($-\infty,-2)\cup(1,\infty)$✔️
($-2,1$)
($-\infty,-1)\cup(2,\infty)$
($-1,2$)

Correct Answer Logic:

Factor: $x^2+x-2>0\Rightarrow(x+2)(x-1)>0$. The product is positive when both factors are positive ($x>1$) or both negative ($x<-2$). Solution: $x\in(-\infty,-2)\cup(1,+\infty)$.

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