Reading Mode - Questions

Planning QUESTION #4987

What is the recommended ratio of open space to built-up area in Clarence Perry's Neighborhood Unit?

1:1
1:2
1:3✔️
1:4

Correct Answer Logic:

Perry's Neighborhood Unit concept (1929) recommended approximately one-third of total area for parks, playgrounds, and open spaces, creating a 1:2 ratio with built-up area, ensuring adequate recreational facilities within walking distance (quarter-mile radius).

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Statistics QUESTION #2009

Question 5902

In the ANOVA table for an RCB design with $SS_{error} = 2.6249$ and error $df = 24$, the standard error for the difference between two treatment means $(\bar{y}_{i.} - \bar{y}_{j.})$ is:

$\sqrt{\dfrac{MS_E}{b}}$
$\sqrt{\dfrac{2 \cdot MS_E}{b}}$✔️
$\sqrt{MS_E}$
$\dfrac{MS_E}{b}$

Correct Answer Logic:

The standard error for comparing two treatment means in RCBD is $SE_{diff} = \sqrt{\dfrac{2 MS_E}{b}}$, where $b$ is the number of blocks (replications per treatment). Here $MS_E = 2.6249/24 = 0.1094$, so $SE_{diff} = \sqrt{2(0.1094)/9} \approx 0.1559$.

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Administration QUESTION #9565

Question 5903

The principle of 'crowding out' in public finance describes a negative externality of government borrowing. Explain the precise mechanism by which excessive government borrowing from the domestic banking sector crowds out private investment.

Government borrowing increases money supply, causing inflation, which reduces real returns on private investment
Government borrowing absorbs available credit in the banking system, reducing funds available for private lending, which raises interest rates and suppresses private sector investment and economic growth✔️
Government borrowing forces banks to hold government securities instead of foreign exchange, reducing private firms' ability to import capital goods
Government borrowing is repaid through higher future taxes, which reduces consumer spending and therefore reduces the demand that private firms invest to meet

Correct Answer Logic:

When government borrows extensively from domestic banks, it competes with private borrowers for a finite pool of lendable funds. This drives up interest rates (cost of credit), making private investment more expensive and less profitable — reducing private capital formation. This is the crowding out mechanism that classical economists warned about and why fiscal discipline is considered essential for private sector growth.

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Boilers Mechanical Engineering QUESTION #4003

Question 5904

A 'Hydraulic Test' (Hydrotest) of a boiler is usually conducted at:

Half the working pressure
The exact working pressure
$1.5$ times the design pressure✔️
$10$ times the working pressure

Correct Answer Logic:

This test uses water to check for leaks and structural integrity at pressures higher than normal operation.

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Physics QUESTION #7082

Question 5905

If a man's linear dimensions increase by a factor of $9$ while his density remains constant, by what factor will the stress in his leg change?

$\frac{1}{81}$
9✔️
$\frac{1}{9}$
81

Correct Answer Logic:

Stress is defined as $\frac{\text{Force}}{\text{Area}}$.

Force (Weight) $\propto \text{Volume} \propto L^3$
Area $\propto L^2$
$\text{Stress} \propto \frac{L^3}{L^2} \propto L$
Since $L$ increases by factor $9$, stress increases by factor $9$.

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Psychology QUESTION #11357

Question 5906

Size constancy refers to the fact that:

the retinal image of the object remains constant irrespective of the changed distance of the object
the perceived size of the object depends on the size of the retinal image
a given object tends to be perceived as the same size regardless of its distance from the observer✔️
the same object at a fixed distance always looks the same size

Correct Answer Logic:

Size constancy refers to the perception of an object as the same size regardless of its distance.

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Civil / Architecture QUESTION #2369

Question 5907

In the Slope-Deflection Method for analysis of indeterminate beams and frames, the slope-deflection equation for the near-end moment $M_{AB}$ of member $AB$ with near-end rotation $\theta_A$, far-end rotation $\theta_B$, chord rotation $\psi = \Delta/L$, and Fixed-End Moment $FEM_{AB}$ is:

$M_{AB} = \dfrac{2EI}{L}(2\theta_A + \theta_B - 3\psi) + FEM_{AB}$✔️
$M_{AB} = \dfrac{EI}{L}(4\theta_A + 2\theta_B - 6\psi) + FEM_{AB}$
$M_{AB} = \dfrac{2EI}{L}(\theta_A + 2\theta_B - 3\psi) + FEM_{AB}$
$M_{AB} = \dfrac{4EI}{L}(\theta_A - \theta_B) + FEM_{AB}$

Correct Answer Logic:

The slope-deflection equation is $M_{AB} = \dfrac{2EI}{L}(2\theta_A + \theta_B - 3\psi) + FEM_{AB}$, where $\theta_A$ is near-end rotation, $\theta_B$ is far-end rotation, and $\psi = \Delta/L$ is the chord rotation due to relative settlement or sway. The near-end joint rotation carries a coefficient twice that of the far-end (reflecting the carry-over factor of 1/2). The chord rotation term $-3\psi$ accounts for sidesway. This equation is the foundation of the Slope-Deflection Method for all prismatic members.

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Math Physics Chemistry Biology QUESTION #4326

Question 5908

Which type of joint is present in the pubis?

Fibrous joints
Immoveable joints
Cartilaginous joints✔️
Freely moveable joints

Correct Answer Logic:

The pubic symphysis is a cartilaginous joint (symphysis) held together by fibrocartilage, allowing slight movement during childbirth and normal activities.

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Physics QUESTION #4383

Question 5909

If two speakers emit sound at the same frequency and phase, maximum loudness occurs when:

Path difference $= \dfrac{\lambda}{2}$
Path difference $= \lambda$✔️
Path difference $= \dfrac{\lambda}{4}$
Path difference $= \dfrac{3\lambda}{4}$

Correct Answer Logic:

Maximum loudness (constructive interference) occurs when the path difference is a whole number multiple of wavelength: $\Delta x = n\lambda$ where $n = 0, 1, 2, ...$. For $n=1$, path difference $= \lambda$.

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MCQs Section QUESTION #4903

Question 5910

A migraine typically afflicts one side of the head, lasts for hours or days, and may recur _____.

as infrequently as once every other month or often, as daily
as infrequently as once every other month or as often as daily✔️
infrequently, as often as once every other month, or often, like
infrequently, like once every other month, or often, like

Correct Answer Logic:

It uses fully parallel 'as…as' constructions: 'as infrequently as once every other month or as often as daily.' Option A omits the second 'as,' breaking the parallel. Options C and D incorrectly use 'like' in place of 'as' in comparative constructions. Option E mixes constructions inconsistently.

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Reading and Writing (Module-1) QUESTION #5321

Question 5911

While many people believe that the primary function of a museum is to preserve artifacts, some curators argue that the ______ of those objects is equally important, as it allows the public to engage with history. Which choice completes the text with the most logical and precise word?

accessibility✔️
storage
origin
cost

Correct Answer Logic:

Engaging the public requires that objects be 'accessible,' making 'accessibility' the correct choice.

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Chemistry QUESTION #7807

Question 5912

Reaction of an alcohol with sodium metal produces:

Aldehyde
Alkoxide✔️
Ethane
Ethene

Correct Answer Logic:

Alcohols react with Na to form sodium alkoxide and hydrogen gas: $2\mathrm{ROH} + 2\mathrm{Na} \rightarrow 2\mathrm{RO}^-\mathrm{Na}^+ + \mathrm{H}_2$.

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Agronomy QUESTION #2019

Question 5913

Seed certification ensures that:

Seeds are chemically treated with fungicides before packaging
Varieties maintain their genetic identity, physical purity, and germination standards through a regulated multiplication chain✔️
Seeds are produced exclusively on government farms
All certified seeds are hybrid and thus superior to open-pollinated varieties

Correct Answer Logic:

Seed certification is a quality assurance system that verifies genetic purity (true-to-type), physical purity, germination percentage, moisture content, and freedom from seed-borne diseases. It governs the multiplication chain: Breeder → Foundation → Registered → Certified seed.

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Mathematics QUESTION #6963

Question 5914

Find all $x$ satisfying $(\cot^{-1}x)^2 - 7(\cot^{-1}x)+10>0$.

$(-\infty,\cot5)\cup(\cot4,\cot2)$
$(\cot2,\infty)$
$(-\infty,\cot5)\cup(\cot2,\infty)$✔️
$(\cot5,\cot4)$

Correct Answer Logic:

Let $u=\cot^{-1}x$. Solve $u^2-7u+10>0$, i.e., $(u-2)(u-5)>0$.

This gives $u<2$ or $u>5$.

Since $\cot^{-1}x$ is a decreasing function with range $(0,\pi)$:

$u<2 \Rightarrow \cot^{-1}x<2 \Rightarrow x>\cot2$ (decreasing function reverses inequality)
$u>5 \Rightarrow \cot^{-1}x>5 \Rightarrow x<\cot5$

Solution: $x\in(-\infty,\cot5)\cup(\cot2,\infty)$

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General Knowledge QUESTION #4484

Question 5915

An economic model to eliminate waste and reuse resources is called:

Rational consumption
Mercantilism
Circular economy✔️
None of these

Correct Answer Logic:

Circular economy focuses on reuse, recycling, and sustainability.

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Aptitude QUESTION #10943

Question 5916

Which principle of design is demonstrated when a building's left half is a mirror image of its right half?

Rhythm
Bilateral symmetry✔️
Radial balance
Contrast

Correct Answer Logic:

Bilateral symmetry (also called axial or mirror symmetry) means one half of the composition is the mirror image of the other about a central axis.

Examples in architecture: Taj Mahal (bilateral symmetry on all four sides), most classical Greek temples, and many government buildings.

Other design principles: Rhythm = repetition of elements creating movement. Radial balance = elements arranged around a central point. Contrast = juxtaposition of opposing elements (light/dark, old/new).

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English QUESTION #2687

Question 5917

Identify the correct modal for 'prohibition': 'You ___ park your car in front of the gate.'

could not
must not✔️
may not
need not

Correct Answer Logic:

'Must not' is used to express a strong prohibition or rule.

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Pakistan Affairs QUESTION #4671

Question 5918

Which was the first American President to make an official state visit to Pakistan?

Richard Nixon
Dwight D. Eisenhower✔️
Lyndon B. Johnson
John F. Kennedy

Correct Answer Logic:

President Dwight D. Eisenhower made the first official US presidential visit to Pakistan in December 1959, strengthening the US-Pakistan alliance during the Cold War.

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Statistics QUESTION #1977

Question 5919

In Bowley's coefficient of skewness defined as $S_k = \dfrac{Q_3 + Q_1 - 2Q_2}{Q_3 - Q_1}$, the value lies in the range:

0 to 1
$-1$ to $+1$✔️
$-3$ to $+3$
$-\infty$ to $+\infty$

Correct Answer Logic:

Bowley's coefficient of skewness is bounded between $-1$ and $+1$ because the numerator $Q_3 + Q_1 - 2Q_2$ can never exceed the denominator $Q_3 - Q_1$ in absolute value, since $Q_2$ always lies between $Q_1$ and $Q_3$.

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Education QUESTION #11620

Question 5920

The first All Pakistan Education Conference of 1947 was convened in which city?

Peshawar
Lahore
Karachi
None of these✔️

Correct Answer Logic:

The first All Pakistan Education Conference was held in Karachi in November 1947, shortly after independence. It laid the foundational vision for Pakistan’s national education system. The correct answer is D — None of these (Karachi), as none of the first three options is correct.

Correct Answer: D — None of these (Karachi).

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