Reading Mode - Questions

Radius of gyration $r = \sqrt{\dfrac{I}{A}}$, where $I$ = second moment of area and $A$ = cross-sectional area. It represents the distribution of area about the axis — a larger $r$ indicates area distributed farther from the neutral axis, giving greater bending and buckling resistance. For design, the minimum $r$ (about the weak axis) governs the critical slenderness ratio and buckling load.

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The Title 28 of the United States Code QUESTION #3713

Question 6

A contractor agrees to build a deck for a homeowner for $\text{\$10,000}$. Halfway through, the contractor realizes the cost of wood has spiked and tells the homeowner, 'I need an extra $\text{\$2,000}$ to finish, or I'm walking.' The homeowner agrees. After the deck is finished, the homeowner pays only $\text{\$10,000}$. Can the contractor recover the extra $\text{\$2,000}$?

Yes, because the homeowner agreed to the modification.
No, because of the 'pre-existing duty rule.'✔️
Yes, because the price spike was an 'unforeseeable difficulty.'
No, unless the modification was in writing.

Correct Answer Logic:

Under the common law 'pre-existing duty rule,' a promise to pay more for a service the party is already legally obligated to perform is unenforceable for lack of new consideration.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3637

Question 7

A 'Carminative' is a drug that:

Relieves flatulence (gas) from the GI tract✔️
Cures cancer
Reduces fever
Causes vomiting

Correct Answer Logic:

Fennel, Cardamom, and Ginger are classic carminatives.

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Mechanical Engineering QUESTION #2403

Question 8

The Froude number $Fr$ is the ratio of inertial forces to gravity forces, expressed as:

$Fr = V / \sqrt{gL}$ — ratio of flow velocity to wave speed✔️
$Fr = \rho V^2 / (gL)$
$Fr = V \sqrt{L/g}$
$Fr = \sqrt{gL}/V$

Correct Answer Logic:

Froude number: $Fr=V/\sqrt{gL}$. When $Fr<1$: subcritical flow; $Fr>1$: supercritical flow; $Fr=1$: critical flow.

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General Knowledge QUESTION #4486

Question 9

In a new report, _____ urged leaders to halt obsession with fossil fuels.

Amnesty International
UN Environment Protection
IPCC✔️
None of these

Correct Answer Logic:

IPCC reports strongly warn against fossil fuel dependence.

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Reading and Writing (Module-1) QUESTION #5365

Question 10

How did whales, once no bigger than seals, evolve to become the largest animals on Earth? Brazilian biologist Mariana Nery believes the answer might be found in whales' DNA. In January 2023, Nery and her colleagues ______ a study showing changes over time in four whale genes associated with body size. Which choice completes the text so that it conforms to the conventions of Standard English?

published✔️
publishing
having published
to publish

Correct Answer Logic:

The sentence needs a main verb in the past tense to complete the independent clause.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3249

Question 11

'Passive Immunity' provides protection that is:

Long-lasting (years)
Immediate but temporary✔️
Slow-acting
Permanent

Correct Answer Logic:

Passive immunity (like breast milk or antivenom) lasts only as long as the antibodies remain in the body.

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Reading and Writing (Module-1) QUESTION #5452

Question 12

Notes: Haudenosaunee Confederacy (1,000-year alliance of six nations, Great Law of Peace). Bruce Johansen believes Great Law influenced US Constitution (influence theory). Which choice presents this theory to an unfamiliar audience?

Bruce Johansen believes the Great Law was very influential.
Influence theory is supported by Franklin and Jefferson studying the Confederacy.
Influence theory holds that principles of the Great Law of Peace, a centuries-old agreement binding six Native nations in the northeastern US, influenced the US Constitution.✔️
Native people influenced US founding in many ways.

Correct Answer Logic:

Option C clearly defines the theory and explains the Great Law for an unfamiliar audience.

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General Knowledge QUESTION #178

Question 13

Largest importer of conventional arms for year 2023 (SIPRI)?

India✔️
Saudi Arabia
UAE
None of these

Correct Answer Logic:

India remains the world's top arms importer according to SIPRI reports.

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Basic Mathematics QUESTION #2865

Question 14

What is the value of the expression: $15 - 2 imes (3 + 4) + 6$?

7✔️
21
13
1

Correct Answer Logic:

Using BODMAS, first solve brackets: $3+4=7$. Then multiply: $2 imes 7=14$. Finally: $15 - 14 + 6 = 7$.

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Statistics QUESTION #1989

Question 15

The number of permutations of 3 letters chosen from 4 distinct letters A, B, C, D is:

$4$
$12$
$24$✔️
$64$

Correct Answer Logic:

The number of permutations $= P(4,3) = \dfrac{4!}{(4-3)!} = \dfrac{24}{1} = 24$. This counts ordered arrangements. The number of combinations would be $C(4,3)=4$, but permutations account for all orderings of each combination (each set of 3 has $3! = 6$ arrangements, so $4 \times 6 = 24$).

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Urdu QUESTION #5032

Question 16

کاٹا اور ......... ضرب المثل مکمل کریں۔

لے بھاگا
لے بھاگو
لے بھاگے
ان میں سے کوئی نہیں (لے دوڑی)✔️

Correct Answer Logic:

صحیح ضرب المثل ہے: 'کاٹا اور لے دوڑی' جو کسی کے نقصان سے فائدہ اٹھانے کے معنی میں استعمال ہوتی ہے۔

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3154

Question 17

Which type of white blood cell is the most numerous and the first responder to infection?

Lymphocyte
Monocyte
Neutrophil✔️
Eosinophil

Correct Answer Logic:

Neutrophils make up $60-70\%$ of WBCs and are professional phagocytes.

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Pharmacokinetics and Pharmacodynamics QUESTION #3830

Question 18

To achieve a chlorine concentration of $1.5$ ppm in a $6000$ L drenching facility, how much chlorinated lime ($30\%\ \text{w/w}$ available chlorine) is needed?

$3$ g
$27$ g
$30$ g✔️
$270$ g

Correct Answer Logic:

$1.5\ \text{ppm} = 1.5\ \text{mg/L}$. For $6000$ L: $1.5 \times 6000 = 9000\ \text{mg} = 9\ \text{g}$ chlorine. Since lime is $30\%\ \text{w/w}$: $\dfrac{9}{0.30} = 30\ \text{g}$.

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