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Study questions platform-wide or filter by specific tests with correct answers revealed.
Maths
QUESTION #2908
Question 381
Find the area of a square whose perimeter is $24$ cm.
Chemistry
QUESTION #466
Question 382
Boiling point of HF is __________ H?O.
Correct Answer Logic:
HF has strong hydrogen bonding but b.p. is lower than water
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Social Studies
QUESTION #10050
Question 383
A marriage arrangement in which one woman may have multiple husbands is known as:
Correct Answer Logic:
Polyandry refers to a marriage system where a woman has more than one husband.
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Math Physics Chemistry Biology
QUESTION #11395
Question 384
Which of the following is an example of a joint called suture?
Correct Answer Logic:
Sutures are fibrous, immovable (synarthrosis) joints found exclusively in the skull. The bones of the adult skull are tightly interlocked by irregular, jagged suture lines (e.g., coronal, sagittal, lambdoid sutures). They allow no movement and provide a rigid, protective casing for the brain.
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Biology Zoology Botany
QUESTION #1360
Question 385
What is the ploidy level of the endosperm in angiosperms?
Correct Answer Logic:
In angiosperms, the endosperm is formed by triple fusion β the fusion of two polar nuclei (each haploid, n) with one male gamete (n) β 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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Library Sciences
QUESTION #1554
Question 386
The term 'Library and Information Science' reflects a merger of two disciplines. Which event most significantly drove the integration of information science into traditional library science?
Correct Answer Logic:
The mid-20th century information explosion β driven by the proliferation of scientific literature during and after World War II β and the development of computers made it necessary to combine traditional library science with information science techniques for storage, retrieval, and management of large volumes of information.
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Biology Zoology Botany
QUESTION #10830
Question 387
The synthesis of an RNA molecule using a DNA template is called:
Correct Answer Logic:
Transcription is the process of synthesising RNA from a DNA template, catalysed by RNA polymerase. The resulting RNA molecule (mRNA, tRNA, rRNA) is complementary and antiparallel to the template DNA strand. Translation converts mRNA sequence into protein; replication copies DNA to DNA; the central dogma (Crick, 1958) describes the overall flow of genetic information: DNA β RNA β Protein.
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Correct Answer Logic:
Split-half reliability correlates two halves of the test, but a half-test is less reliable than the full test. The Spearman-Brown formula corrects for this by estimating the reliability of the full-length test from the split-half correlation. This is a fundamental principle: longer tests, all else equal, are more reliable because they sample the domain more broadly.
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MCQs Section
QUESTION #5163
Question 389
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ΩΨ³ΩΨ¨ ΫΫΨ
Correct Answer Logic:
ΫΫ ΩΨΈΨ±ΫΫ Ω
ΩΩΨ§ΩΨ§ Ω
ΨΩ
Ψ― ΨΨ³ΫΩ Ψ’Ψ²Ψ§Ψ― Ϊ©Ϋ Ψ³Ψ§ΨͺΪΎ Ω
ΩΨ³ΩΨ¨ Ϊ©ΫΨ§ Ψ¬Ψ§ΨͺΨ§ ΫΫΫ
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Math Physics Chemistry Biology
QUESTION #563
Question 390
Which hormone continues to promote protein synthesis throughout the body even after the cease in growth?
Library Sciences
QUESTION #1545
Question 391
The 'Hawthorne Effect,' derived from studies at Western Electric's Hawthorne plant, contributed to library management theory by demonstrating that:
Correct Answer Logic:
The Hawthorne Studies (Elton Mayo) found that worker productivity improved when workers received attention and felt valued, regardless of physical working conditions. This gave rise to the Human Relations Theory, which influenced library management by emphasizing the importance of staff morale, communication, and social needs.
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Business, Public administration and Policy
QUESTION #10544
Question 392
Which constitutional body in Pakistan is mandated to resolve disputes between the federation and the provinces?
Correct Answer Logic:
The Council of Common Interests (CCI), established under Article 153 of the Constitution, is the constitutional forum for federal-provincial policy coordination and dispute resolution. It formulates and regulates policies for specified matters (railways, federal highways, gas/oil resources) and is chaired by the Prime Minister with all Chief Ministers as members. The NFC deals specifically with revenue distribution.
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Mathematics
QUESTION #4091
Question 393
Consider \(T:\mathbb{R}^3\to\mathbb{R}^2\) defined by \(T(x,y,z)=(|x|,y+z)\). To show \(T\) is NOT linear, the simplest counterexample uses scalar multiplication with \(c=-1\) and vector \((1,0,0)\):
Correct Answer Logic:
For linearity, \(T(c\mathbf{v})=cT(\mathbf{v})\). With \(\mathbf{v}=(1,0,0)\) and \(c=-1\): \(T(-1,0,0)=(|-1|,0)=(1,0)\), but \(-1\cdot T(1,0,0)=-1\cdot(1,0)=(-1,0)\). Since \((1,0)\neq(-1,0)\), \(T\) is NOT linear β homogeneity fails.
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General Knowledge
QUESTION #178
Question 394
Largest importer of conventional arms for year 2023 (SIPRI)?
Correct Answer Logic:
India remains the world's top arms importer according to SIPRI reports.
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FIA Act
QUESTION #9983
Question 395
Rules made under the Act may prescribe all of the following EXCEPT:
Correct Answer Logic:
The Act's rule-making power is limited to administrative/operational matters, not constitutional amendment.
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Logical Reasoning
QUESTION #3932
Question 396
Linda Greenhouse's reporting is often cited as a perfect instance of _____ because of her ability to fit complex prose into small spaces.
Professional
QUESTION #1820
Question 397
Which of the following categories of persons is expressly EXCLUDED from the definition of 'civil servant' under Section 2(b) of the Civil Servants Act 1973?
Correct Answer Logic:
Section 2(b) provides that a civil servant does not include: (i) a person on deputation from a Province; (ii) a person employed on contract, work-charged basis, or paid from contingencies; or (iii) a worker/workman under the Factories Act 1934 or Workman's Compensation Act 1923. Contract and work-charged employees are explicitly excluded.
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Administration
QUESTION #9591
Question 398
A high-performing employee consistently exceeds targets but receives the same annual increment as average performers. According to expectancy theory, what motivational consequence follows, and what retention risk does this create?
Correct Answer Logic:
Expectancy theory (Vroom) holds that motivation requires: effort β performance expectancy (effort leads to performance) AND performance β outcome instrumentality (performance leads to reward). When high performers receive identical rewards to average performers, instrumentality collapses β the employee learns that performance level is irrelevant to reward. This destroys the motivational calculus and drives high-performers (who have strongest market alternatives) to exit.
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Civil Engineering
QUESTION #2124
Question 399
The plastic moment capacity \(M_p\) of a steel section in plastic analysis is related to the elastic moment capacity \(M_y\) by the shape factor \(f\). For a rectangular cross-section, the shape factor is:
Correct Answer Logic:
Shape factor \(f = \dfrac{M_p}{M_y} = \dfrac{Z_p}{Z_e}\), where \(Z_p\) = plastic section modulus and \(Z_e\) = elastic section modulus. For a rectangle: \(Z_p = \dfrac{bd^2}{4}\) and \(Z_e = \dfrac{bd^2}{6}\). Therefore \(f = \dfrac{bd^2/4}{bd^2/6} = \dfrac{6}{4} = 1.5\). For I-sections, \(f \approx 1.12\). The shape factor quantifies the reserve strength beyond first yield β the basis of plastic design.
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