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Boilers Mechanical Engineering QUESTION #2516
Question 5581
In normal-tangential (n-t) coordinates, the acceleration of a particle moving along a curved path with speed \(v\) and radius of curvature \(\rho\) is:
  • Only the tangential component \(\dot{v}\,\hat{e}_t\)
  • Only the normal component \(\frac{v^2}{\rho}\hat{e}_n\)
  • Both \(a_t = \dot{v}\) tangentially and \(a_n = \frac{v^2}{\rho}\) normallyβœ”οΈ
  • A single vector directed toward the center of curvature
Correct Answer Logic:
In n-t coordinates: \(\mathbf{a}=\dot{v}\hat{e}_t + \frac{v^2}{\rho}\hat{e}_n\). The tangential component \(a_t=\dot{v}\) reflects speed change; the normal (centripetal) component \(a_n=v^2/\rho\) reflects direction change.
Uploaded by: Fani Warraich
Psychology QUESTION #9926
Question 5582
What are the problems associated with low birth weight?
  • Susceptibility to infection
  • Difficulty maintaining body temperature
  • Difficulty with breathing, sucking, swallowing, and digestion
  • All of the aboveβœ”οΈ
Correct Answer Logic:
Low birth weight (LBW) infants face multiple serious health risks: infection susceptibility (weak immune system), thermal instability (underdeveloped temperature regulation), and breathing/sucking/swallowing/digestion difficulties. All are documented complications.
Uploaded by: Fani Warraich
MCQs Section QUESTION #5224
Question 5583
Ψ§Ψ³ΨͺΨΉΨ§Ψ±Ϋ’ Ϊ©Ϋ’ Ω„ΨΊΩˆΫŒ Ω…ΨΉΩ†ΫŒ ہیں؟
  • Ψ§Ψ―ΪΎΨ§Ψ± Ω„ΫŒΩ†Ψ§βœ”οΈ
  • اشارہ Ϊ©Ψ±Ω†Ψ§
  • Ω†Ω‚Ψ― کی Ϊ†ΫŒΨ² Ω„ΫŒΩ†Ψ§
  • Ψ§Ω† Ω…ΫŒΪΊ Ψ³Ϋ’ کوئی Ω†ΫΫŒΪΊ
Correct Answer Logic:
Ψ§Ψ³ΨͺΨΉΨ§Ψ±Ϋ’ Ϊ©Ϋ’ Ω„ΨΊΩˆΫŒ Ω…ΨΉΩ†ΫŒ Ψ§Ψ―ΪΎΨ§Ψ± Ω„ΫŒΩ†Ψ§ یا Ω…Ψ³ΨͺΨΉΨ§Ψ± Ω„ΫŒΩ†Ψ§ ΫΫŒΪΊΫ” یہی وجہ ہے کہ Ψ§Ψ³ Ω…ΫŒΪΊ ایک Ϊ†ΫŒΨ² Ϊ©Ψ§ Ω†Ψ§Ω… دوسری کو دیا Ψ¬Ψ§ΨͺΨ§ ہے۔
Uploaded by: Fani Warraich
Islamic Studies QUESTION #657
Question 5584
The Muslim rule in Spain ended in:
  • 1492 CEβœ”οΈ
  • 1258 CE
  • 1099 CE
  • None of these
Correct Answer Logic:
The fall of Granada in 1492 marked the end of Muslim rule in the Iberian Peninsula.
Uploaded by: Fani Warraich
Business, Public administration and Policy QUESTION #10531
Question 5585
Marxist structuralist thinkers characteristically argue that:
  • Individuals have agency to shape their own destinies independently
  • Capitalists are inherently immoral by personal character
  • Even well-intentioned capitalists are compelled by systemic logic to exploit their workersβœ”οΈ
  • None of these
Correct Answer Logic:
Marxist structuralism argues that the capitalist system's structural logic β€” the need to extract surplus value, compete for market share, and accumulate capital β€” compels even well-meaning capitalists to exploit labor. It is not about individual moral failing but systemic necessity. This structural determinism challenges liberal individualism, which assumes people freely choose their economic behavior.
Uploaded by: Fani Warraich
Aptitude QUESTION #11011
Question 5586
A $3 \times 3 \times 3$ cube is built from $27$ unit cubes. If the outer layer is removed, how many unit cubes remain?
  • $8$
  • $12$
  • $18$
  • $1$βœ”οΈ
Correct Answer Logic:
Removing the outer layer from a $3 \times 3 \times 3$ cube leaves a $1 \times 1 \times 1$ inner cube. So only $1$ unit cube remains.
Uploaded by: Fani Warraich
Maths QUESTION #2871
Question 5587
If the price of a book increases from $\$40$ to $\$50$, what is the percentage increase?
  • 10%
  • 20%
  • 25%βœ”οΈ
  • 30%
Correct Answer Logic:
Increase $= 50 - 40 = 10$. Percentage $= (10/40) \times 100 = 25\%$.
Uploaded by: Fani Warraich
Academic/Professional (Social Sciences) QUESTION #6492
Question 5588
In sociology, 'Ethnocentrism' refers to:
  • Judging another culture by its own standards
  • Judging another culture by the standards of one's own cultureβœ”οΈ
  • The belief that all cultures are equal
  • The process of learning a new culture
Correct Answer Logic:
Ethnocentrism is the tendency to view one's own culture as superior and use it as a benchmark for others.
Uploaded by: Fani Warraich
Maths QUESTION #2809
Question 5589
What is \(35\%\) of 480?
  • 152
  • 162
  • 168βœ”οΈ
  • 172
Correct Answer Logic:
\(35\% \text{ of } 480 = \dfrac{35}{100} \times 480 = \dfrac{35 \times 480}{100} = \dfrac{16800}{100} = 168\).
Uploaded by: Fani Warraich
Biology Zoology Botany QUESTION #1365
Question 5590
A cross between an individual with an unknown genotype and a homozygous recessive individual is called a:
  • Back cross
  • Test crossβœ”οΈ
  • Monohybrid cross
  • Dihybrid cross
Correct Answer Logic:
A test cross involves crossing an organism with an unknown genotype (possibly homozygous dominant or heterozygous) with a homozygous recessive individual (e.g., aa). The phenotypic ratio of offspring reveals the unknown genotype. If all offspring show the dominant phenotype, the unknown parent is homozygous dominant; if a 1:1 ratio appears, it is heterozygous.
Uploaded by: Fani Warraich
FIA Act QUESTION #9952
Question 5591
Public Servant' under this Act is defined by reference to which law?
  • Section 21, Pakistan Penal Codeβœ”οΈ
  • Section 5, Police Act 1861
  • Section 3, FIA Act
  • Section 10, Elections Act 2017
Correct Answer Logic:
Public servant carries the same meaning as Section 21 of the Pakistan Penal Code, plus employees of Federal Government-controlled bodies.
Uploaded by: Fani Warraich
Boilers Mechanical Engineering QUESTION #2459
Question 5592
Gear interference occurs when:
  • The pressure angle exceeds 25Β°
  • The addendum circle of one gear extends beyond the tangent points (interference points) on the line of actionβœ”οΈ
  • The contact ratio exceeds 2.0
  • The module is less than 1 mm
Correct Answer Logic:
Interference occurs when the dedendum of one gear extends below its base circle. The maximum addendum radius without interference is \(r_{a,max}=\sqrt{r_b^2+c^2\sin^2\phi}\).
Uploaded by: Fani Warraich
Agronomy QUESTION #2086
Question 5593
An ideal seedbed for small-seeded crops (wheat, canola) must achieve which combination of physical characteristics?
  • Deep (30+ cm), fine, loose structure with maximum air pore space
  • Firm at depth for capillary water supply to germinating seeds, fine and friable at the surface (clods < 5–10 mm), level for uniform sowing depth, and free from large clods that create air pockets around seeds causing poor seed-soil contactβœ”οΈ
  • Saturated with water to maximum field capacity before sowing
  • Rough and cloddy to prevent wind erosion of the seedbed before germination
Correct Answer Logic:
Small seeds have limited food reserves β€” they need intimate seed-soil contact for water imbibition (capillary supply from firm subsoil), precise sowing depth (1–3 cm), and fine tilth for rapid, uniform emergence. Large clods create air gaps around seeds, disrupting water supply. However, over-pulverization destroys structure, causing surface crusting that impedes seedling emergence.
Uploaded by: Fani Warraich
Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3442
Question 5594
'Vitamin B3' (Niacin) deficiency results in the '3 Ds': Dermatitis, Diarrhea, and Dementia. This disease is:
  • Beri-beri
  • Pellagraβœ”οΈ
  • Scurvy
  • Rickets
Correct Answer Logic:
Pellagra is often associated with corn-based diets.
Uploaded by: Fani Warraich
English QUESTION #2779
Question 5595
What does the PHRASAL VERB 'RUN INTO' mean?
  • To jog inside a building
  • To encounter someone unexpectedlyβœ”οΈ
  • To crash into something on purpose
  • To organize a running event
Correct Answer Logic:
'Run into' is a phrasal verb meaning to meet someone by chance or to encounter an unexpected problem. Example: 'I ran into my old teacher at the supermarket.'
Uploaded by: Fani Warraich
Islamic Studies QUESTION #661
Question 5596
Bait-ul-Hikmah (House of Wisdom) was established in:
  • Damascus
  • Cairo
  • Baghdadβœ”οΈ
  • None of these
Correct Answer Logic:
It was a major intellectual center in Baghdad during the Abbasid Caliphate.
Uploaded by: Fani Warraich
Psychology QUESTION #9931
Question 5597
According to Erikson's theory, the central struggle during adolescence is:
  • Intimacy versus isolation
  • Initiative versus guilt
  • Identity versus role confusionβœ”οΈ
  • Competence versus inferiority
Correct Answer Logic:
Erikson's stage for adolescence (ages 12–18) centers on Identity versus Role Confusion β€” forming a coherent self-concept. Success produces a stable identity; failure leads to role confusion and identity diffusion.
Uploaded by: Fani Warraich
Mathematics QUESTION #4105
Question 5598
The absolute maximum value of \(f(x,y)=xy-2x\) over the entire triangular region with vertices \((0,0),(4,0),(0,4)\) is:
  • \(0\)
  • \(1\)βœ”οΈ
  • \(4\)
  • \(8\)
Correct Answer Logic:
Boundary analysis: Edge \(y=0\): \(f=-2x\leq0\). Edge \(x=0\): \(f=0\). Edge \(y=4-x\): \(f=-x^2+2x\), max at \(x=1\) giving \(f=1\). Vertex values: \(f(0,0)=0\), \(f(4,0)=-8\), \(f(0,4)=0\). The absolute maximum is \(\boxed{1}\) at \((1,3)\).
Uploaded by: Fani Warraich
Accounting &amp; Finance QUESTION #9651
Question 5599
In an Independent Branch reconciliation, which of the following is a reason for the difference between the Head Office Account balance in branch books and the Branch Account balance in HO books?
  • Different depreciation rates applied
  • Goods in transit from HO to branchβœ”οΈ
  • Different accounting policies
  • Year-end accruals at the branch
Correct Answer Logic:
The two balances may differ due to: (1) cash in transit, (2) goods in transit, and (3) mistakes committed by either party. Goods dispatched by HO but not yet received at branch create a timing difference, causing a temporary mismatch in both parties' books.
Uploaded by: Fani Warraich
Pakistan Affairs QUESTION #602
Question 5600
The Third Battle of Panipat (1761) was fought between Ahmad Shah Abdali and:
  • The Mughals
  • The Marhattasβœ”οΈ
  • The British
  • None of These
Correct Answer Logic:
The battle was a major conflict between the Durrani Empire and the Maratha Empire.
Uploaded by: Fani Warraich
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