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Boilers Mechanical Engineering QUESTION #2513

The Soderberg criterion for fatigue is more conservative than the modified Goodman criterion because it uses which strength in place of $S_{ut}$?

Endurance limit $S_e$
Proof strength $S_p$
Yield strength $S_y$✔️
Fracture strength $S_f$

Correct Answer Logic:

The Soderberg criterion: $\frac{\sigma_a}{S_e}+\frac{\sigma_m}{S_y}=\frac{1}{n}$. It substitutes yield strength $S_y$ for ultimate strength $S_{ut}$. Since $S_y < S_{ut}$, the Soderberg line falls inside the Goodman line, making it more conservative.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3092

Question 1322

Which protein is known as the 'Thin Filament' in a muscle fiber?

Myosin
Actin✔️
Collagen
Keratin

Correct Answer Logic:

Actin (thin) and Myosin (thick) filaments slide past each other during muscle contraction.

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Accounting Finance and Punjab Sales Tax on Services QUESTION #2577

Question 1323

Under the Offences and Penalties Schedule Entry No. 24, where a person refuses to RECEIVE any notice or order issued by an officer of the Authority, the penalty is:

Twenty thousand rupees fixed
Fifty thousand rupees or one hundred percent of the tax payable for the tax period to which the offence relates, whichever is higher✔️
One hundred thousand rupees fixed
Ten percent of the tax payable

Correct Answer Logic:

Entry No. 24 provides that where any person refuses to receive any notice or order, such person shall be liable to pay a penalty of FIFTY THOUSAND RUPEES OR ONE HUNDRED PERCENT of the tax payable for the tax period to which the offence relates, whichever is HIGHER.

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General Knowledge QUESTION #8763

Question 1324

The Liaquat-Nehru Pact of 1950 primarily dealt with which issue?

Minorities and refugees problem✔️
Distribution of assets
Distribution of river waters
Kashmir issue

Correct Answer Logic:

The pact aimed to protect minorities and address refugees after partition.

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Chemistry QUESTION #1421

Question 1325

Silicones are primarily:

Organic polymers
Inorganic polymers
Hybrid organic-inorganic polymers✔️
None of these

Correct Answer Logic:

Silicones (polysiloxanes) are hybrid organic-inorganic polymers. Their backbone is inorganic — consisting of alternating silicon and oxygen atoms ($\text{Si-O-Si}$ chains) — while organic groups (typically methyl or phenyl) are attached to silicon. This dual nature gives silicones unique properties: thermal stability, water repellence, and flexibility.

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General Knowledge QUESTION #4786

Question 1326

Which of the following Nobel Prize categories was established in 1968?

Medicine
Literature
Economics✔️
Physics

Correct Answer Logic:

The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel was established in 1968, unlike the original Nobel Prizes which were established in 1895.

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Chemistry QUESTION #7372

Question 1327

A magnetic moment of 2.83 BM is exhibited by which of the following ions? (At. nos: Ti = 22, Cr = 24, Mn = 25, Ni = 28)

$\text{Ti}^{3+}$
$\text{Ni}^{2+}$✔️
$\text{Cr}^{3+}$
$\text{Mn}^{2+}$

Correct Answer Logic:

Formula: $\mu = \sqrt{n(n+2)}$ BM, where $n$ = number of unpaired electrons.

For $\mu = 2.83$ BM: $2.83 = \sqrt{n(n+2)}$ → $n = 2$

Checking $\text{Ni}^{2+}$: Ni (Z=28) = [Ar] 3d⁸ 4s². $\text{Ni}^{2+}$ = [Ar] 3d⁸ → 2 unpaired electrons → $\mu = \sqrt{2 \times 4} = \sqrt{8} \approx 2.83$ BM ✓

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English QUESTION #8376

Question 1328

Commodious is the opposite of:

limited✔️
expansion
numerous
leisurely

Correct Answer Logic:

Commodious means spacious and roomy; opposite is limited.

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Pakistan Affairs QUESTION #609

Question 1329

In which war did Ahmad Khan Kharal fight against the British in Punjab?

1839
1885
1897
None of these✔️

Correct Answer Logic:

Ahmad Khan Kharal led the resistance during the War of Independence in 1857 .

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General Knowledge QUESTION #8794

Question 1330

'Ad-Dammam' is an important seaport of which country?

Qatar
Saudi Arabia✔️
Bahrain
Egypt

Correct Answer Logic:

Dammam is a major port in Saudi Arabia.

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Accounting Finance and Punjab Sales Tax on Services QUESTION #2582

Question 1331

Under section 5(2) of the Act, a notification issued by the Government amending the Second Schedule (adding, modifying or deleting any entry regarding taxable services or rates) shall be effective from what date?

Three months before the date of notification
The date of approval by the Provincial Assembly
Such date as may be specified in the notification, but not prior to the date on which the notification is PUBLISHED in the Official Gazette✔️
The first day of the next financial year

Correct Answer Logic:

Section 5(2) provides a strict rule: the notification shall be effective from such date as may be specified therein, but SUCH DATE SHALL NOT BE PRIOR TO THE DATE ON WHICH THE NOTIFICATION IS PUBLISHED in the official Gazette — preventing retrospective taxation through subordinate legislation.

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English QUESTION #8364

Question 1332

Change to indirect speech: He said, 'The sun is stationary.'

He said that the sun is stationary✔️
He said that the sun was stationary
He said the sun is stationary
None of these

Correct Answer Logic:

Universal truth remains in present tense.

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Civil Engineering QUESTION #6595

Question 1333

For normal-weight concrete with $f'_c = 3000\,\text{psi}$, the modulus of elasticity $E_c$ (ACI formula) is approximately:

3.15 × 10⁶ psi✔️
3.32 × 10⁶ psi
3.48 × 10⁶ psi
3.65 × 10⁶ psi

Correct Answer Logic:

ACI 318 formula: $E_c = 57{,}000\sqrt{f'_c}\,\text{(psi)}$. $E_c = 57{,}000\sqrt{3000} = 57{,}000 \times 54.77 \approx 3{,}122{,}000\,\text{psi} \approx 3.12 \times 10^6\,\text{psi}$, closest to option (a).

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Islamic Studies QUESTION #354

Question 1334

Ibn e Rushd (Averroes), the Great Muslim Philosopher, was:

Egyptian
Spanish✔️
Iranian
Arabian

Correct Answer Logic:

He was born in Córdoba, Al-Andalus (modern-day Spain).+1

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General Knowledge QUESTION #8994

Question 1335

Dasman Palace is the official residence of which ruler?

President of Sri Lanka
Amir of Qatar
President of Indonesia
Amir of Kuwait✔️

Correct Answer Logic:

Dasman Palace is the residence of the Emir of Kuwait.

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General Ability and Fire Fighting QUESTION #5592

Question 1336

Which of the following is an example of the 'Starving' method of fire extinguishment?

Applying CO2 gas to the fire
Turning off a gas valve✔️
Using a fire blanket
Spraying water on flames

Correct Answer Logic:

Starving a fire means removing the fuel source. Turning off a gas valve removes the fuel supply and therefore extinguishes the fire.

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Accounting & Finance QUESTION #1199

Question 1337

When a corporation issues shares above their par value, the excess amount is credited to:

Retained Earnings
Share Premium Account✔️
Capital Account
Revenue Account

Correct Answer Logic:

When shares are issued at a price above par value, the par value portion is credited to the Share Capital account and the excess (premium) is credited to the Share Premium Account (also called Additional Paid-in Capital). This premium is part of equity but is kept separate from retained earnings.

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Biology Zoology Botany QUESTION #1380

Question 1338

What is the ploidy level of the endosperm in angiosperms?

Haploid (n)
Diploid (2n)
Triploid (3n)✔️
Tetraploid (4n)

Correct Answer Logic:

In angiosperms, the endosperm is formed by triple fusion — the fusion of two polar nuclei (each haploid, n) with one male gamete (n) — 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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Civil Procedure QUESTION #5682

Question 1339

In a non-jury trial, the court finds for the plaintiff but fails to state findings of fact and conclusions of law. Is this a violation of the rules?

No, findings are only required if a party requests them.
Yes, Rule 52(a)(1) requires the court to find the facts specially and state its conclusions of law separately in an action tried on the facts without a jury.✔️
No, because the judgment itself is sufficient.
Yes, but only if the case involves more than $75,000.

Correct Answer Logic:

Rule 52(a)(1) explicitly requires findings of fact and conclusions of law in non-jury trials.

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Planning QUESTION #5001

Question 1340

What is the primary purpose of Environmental Auditing in project management?

Initial impact prediction
Ongoing compliance verification✔️
Post-project evaluation only
Stakeholder consultation

Correct Answer Logic:

Environmental Auditing is a systematic, periodic verification process ensuring ongoing compliance with environmental standards, regulations, and management plans during project operation—distinct from initial EIA (prediction) or post-implementation evaluation.

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