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Maths QUESTION #2908
Question 381
Find the area of a square whose perimeter is $24$ cm.
  • $36\text{ cm}^2$βœ”οΈ
  • $16\text{ cm}^2$
  • $48\text{ cm}^2$
  • $24\text{ cm}^2$
Correct Answer Logic:
Side $= 24/4 = 6$. Area $= 6^2 = 36$.
Uploaded by: Fani Warraich
Chemistry QUESTION #466
Question 382
Boiling point of HF is __________ H?O.
  • Lower than
  • Higher thanβœ”οΈ
  • Equal to
  • Almost same as
Correct Answer Logic:
HF has strong hydrogen bonding but b.p. is lower than water
Uploaded by: Fani Warraich
Social Studies QUESTION #10050
Question 383
A marriage arrangement in which one woman may have multiple husbands is known as:
  • Polygamy
  • Polyandryβœ”οΈ
  • Polygyny
  • None of these
Correct Answer Logic:
Polyandry refers to a marriage system where a woman has more than one husband.
Uploaded by: Fani Warraich
Math Physics Chemistry Biology QUESTION #11395
Question 384
Which of the following is an example of a joint called suture?
  • Micropodial disc
  • Pelvis
  • Elbow
  • Skullβœ”οΈ
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.
Uploaded by: Fani Warraich
Biology Zoology Botany QUESTION #1360
Question 385
What is the ploidy level of the endosperm in angiosperms?
  • Haploid (n)
  • Diploid (2n)
  • Triploid (3n)βœ”οΈ
  • Tetraploid (4n)
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.
Uploaded by: Fani Warraich
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?
  • The invention of the printing press in the 15th century
  • The emergence of digital computers and information explosion in the mid-20th centuryβœ”οΈ
  • The establishment of the British Museum Library
  • The publication of Melvil Dewey's classification system
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.
Uploaded by: Fani Warraich
Biology Zoology Botany QUESTION #10830
Question 387
The synthesis of an RNA molecule using a DNA template is called:
  • Translation
  • Central dogma
  • Transcriptionβœ”οΈ
  • Replication
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.
Uploaded by: Fani Warraich
Education QUESTION #6774
Question 388
A test developer wants to use the Split-Half method to estimate reliability. After splitting the test into odd and even items and correlating the halves, they get r = 0.70. However, this underestimates the reliability of the full test. Which formula corrects for this, and why is the correction necessary?
  • The KR-20 formula; because internal consistency must account for item difficulty
  • The Spearman-Brown prophecy formula; because reliability increases with test length, and the correlation between two halves reflects reliability of a test only half as longβœ”οΈ
  • The inter-rater reliability coefficient; because two independent scorers are effectively two test halves
  • The KR-21 formula; because it handles non-dichotomous scoring
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.
Uploaded by: Fani Warraich
MCQs Section QUESTION #5163
Question 389
اردو Ψ¨Ψ±Ψ§Ψ¬ Ψ¨ΪΎΨ§Ψ΄Ψ§ Ψ³Ϋ’ Ω†Ϊ©Ω„ΫŒ ΫΫ’ΨŒ یہ Ϊ©Ψ³ ادیب Ψ³Ϋ’ Ω…Ω†Ψ³ΩˆΨ¨ ΫΫ’ΨŸ
  • Ω…ΩˆΩ„Ψ§Ω†Ψ§ Ω…Ψ­Ω…Ψ― Ψ­Ψ³ΫŒΩ† Ψ’Ψ²Ψ§Ψ―βœ”οΈ
  • Ω…ΩˆΩ„Ψ§Ω†Ψ§ الطاف Ψ­Ψ³ΫŒΩ† Ψ­Ψ§Ω„ΫŒ
  • Ω…Ω‚Ψ΅ΩˆΨ― Ψ­Ψ³ΫŒΩ†
  • Ψ§Ω† Ω…ΫŒΪΊ Ψ³Ϋ’ کوئی Ω†ΫΫŒΪΊ
Correct Answer Logic:
یہ Ω†ΨΈΨ±ΫŒΫ Ω…ΩˆΩ„Ψ§Ω†Ψ§ Ω…Ψ­Ω…Ψ― Ψ­Ψ³ΫŒΩ† Ψ’Ψ²Ψ§Ψ― Ϊ©Ϋ’ Ψ³Ψ§ΨͺΪΎ Ω…Ω†Ψ³ΩˆΨ¨ کیا Ψ¬Ψ§ΨͺΨ§ ہے۔
Uploaded by: Fani Warraich
Correct Answer Logic:
Somatotropin (STH/GH) promotes protein synthesis
Uploaded by: Fani Warraich
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:
  • Strict supervision increases worker productivity
  • Workers' productivity is influenced by social factors, attention, and the feeling of being observed, not only physical conditionsβœ”οΈ
  • Financial incentives are the only reliable motivators
  • Bureaucratic structure improves staff morale
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.
Uploaded by: Fani Warraich
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?
  • National Finance Commission (NFC)
  • Council of Common Interests (CCI)βœ”οΈ
  • Election Commission of Pakistan
  • Senate of Pakistan
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.
Uploaded by: Fani Warraich
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 \((1,0,0)\):
  • Both \(T(c\mathbf{v})\) and \(cT(\mathbf{v})\) equal \((1,0)\)
  • Both equal \((-1,0)\)
  • They differ: \(T(-1,0,0)=(1,0)\) but \(-T(1,0,0)=(-1,0)\)βœ”οΈ
  • They differ: \(T(-1,0,0)=(0,-1)\) but \(-T(1,0,0)=(0,1)\)
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.
Uploaded by: Fani Warraich
General Knowledge QUESTION #178
Question 394
Largest importer of conventional arms for year 2023 (SIPRI)?
  • Indiaβœ”οΈ
  • Saudi Arabia
  • UAE
  • None of these
Correct Answer Logic:
India remains the world's top arms importer according to SIPRI reports.
Uploaded by: Fani Warraich
FIA Act QUESTION #9983
Question 395
Rules made under the Act may prescribe all of the following EXCEPT:
  • Terms and conditions of service of Agency members
  • Powers and functions relating to inquiries
  • Nature of assistance to Provincial agencies
  • Amendments to the Constitution of Pakistanβœ”οΈ
Correct Answer Logic:
The Act's rule-making power is limited to administrative/operational matters, not constitutional amendment.
Uploaded by: Fani Warraich
Correct Answer Logic:
1
Uploaded by: Fani Warraich
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?
  • A member of an All-Pakistan Service
  • A person holding a civil post connected with defence
  • A person employed on contract or on work-charged basisβœ”οΈ
  • A person holding a permanent post in a civil service of the Federation
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.
Uploaded by: Fani Warraich
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?
  • The high-performer will maintain performance because achievement motivation is intrinsic and unaffected by extrinsic equity
  • The high-performer will reduce effort because the perceived link between high performance and valued reward is broken β€” the effort-performance-outcome chain in expectancy theory is severed, and the organization faces attrition of its best talent to competitors who reward performance differentiallyβœ”οΈ
  • The high-performer will become a mentor to average performers, raising team standards through social influence
  • The high-performer will increase effort to demonstrate value and justify a higher increment in the next cycle
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
General Knowledge QUESTION #8947
Question 400
'Philately' is the hobby of:
  • Science of drugs
  • Stamp collectionβœ”οΈ
  • The study of written records
  • The study of animal behavior
Correct Answer Logic:
Philately is stamp collecting.
Uploaded by: Fani Warraich