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Pakistan Affairs QUESTION #132

Question 1341

A Free Trade Agreement between Pakistan and China was signed on:

24-Oct-06
24-Nov-06✔️
24-Dec-06
24-Jan-07

Correct Answer Logic:

The CPFTA (China-Pakistan Free Trade Agreement) was signed on November 24, 2006.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3476

Question 1342

'Crude Drugs' are defined as:

Pure synthetic chemicals
Natural substances that have undergone only collection and drying✔️
Highly processed pharmaceutical tablets
Liquid injections

Correct Answer Logic:

Crude drugs are natural products used as medicine in their raw or minimally processed state.

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Federal Rules of Evidence (US) QUESTION #3782

Question 1343

A plaintiff sues a doctor for malpractice. The plaintiff wants to introduce a letter written by the doctor to the plaintiff saying: 'I am so sorry I used the wrong surgical tool; I will pay for all your follow-up treatments.' The doctor objects. What part of the letter, if any, is admissible?

None of it, under Rule 408 (Compromise Offers).
Only the apology, because the offer to pay medical expenses is excluded under Rule 409.
Only the admission ('I used the wrong tool'), because Rule 409 only excludes the 'offer to pay' and not surrounding statements of fact.✔️
All of it, because it is an admission by a party-opponent.

Correct Answer Logic:

Rule 409 excludes evidence of offering or promising to pay medical expenses to prove liability. However, unlike Rule 408 (settlement negotiations), Rule 409 does NOT exclude collateral admissions of fact made in connection with the offer.

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Pakistan Affairs QUESTION #302

Question 1344

During military rule, how did the judiciary typically respond to the regimes?

Upheld constitutional principles
Opposed interventions
Collaborated with the military regimes✔️
Demonstrated neutrality

Correct Answer Logic:

Historically, the judiciary used the "Doctrine of Necessity" to validate military takeovers.+1

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3277

Question 1345

'Gram-Positive' bacteria appear which color after a successful Gram stain?

Pink/Red
Green
Purple/Blue✔️
Yellow

Correct Answer Logic:

Gram-positive bacteria retain the crystal violet dye due to their thick peptidoglycan layer.

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Electrical Engineering QUESTION #2183

Question 1346

In AM with modulation index $\mu = 0.5$, the efficiency (ratio of useful sideband power to total transmitted power) is:

$11.1\%$✔️
$25.0\%$
$33.3\%$
$20.0\%$

Correct Answer Logic:

$\eta = \frac{\mu^2/2}{1+\mu^2/2}\times100 = \frac{0.125}{1.125}\times100 \approx 11.1\%$. At $\mu=1$ (100% modulation), efficiency peaks at only $33.3\%$, illustrating DSB-FC inefficiency.

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English QUESTION #7638

Question 1347

Change the voice: When will you buy a car?

When will a car be bought by you?✔️
When a car will be bought by you?
When will be a car bought by you?
None of these

Correct Answer Logic:

In interrogative sentences, when changing to passive voice, the question word remains at the beginning. The structure is: Question word + will + object + be + past participle + by + subject. Therefore, 'When will you buy' becomes 'When will be bought by you'.

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Mathematics QUESTION #1329

Question 1348

The wave equation $u_{xx}=\dfrac{1}{c^2}u_{tt}$ describes waves that travel at speed:

1
$c$✔️
$c^2$
$\dfrac{1}{c}$

Correct Answer Logic:

The wave equation $u_{xx}=\dfrac{1}{c^2}u_{tt}$ has solutions of the form $f(x\pm ct)$, representing waves propagating in the $\pm x$ direction with speed $c$. The constant $c$ is the wave speed (e.g., for a string, $c=\sqrt{T/\mu}$).

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Education QUESTION #6755

Question 1349

In a norm-referenced test, items are deliberately selected to have an average difficulty of around p = 0.50 rather than p = 0.80. What is the PRIMARY measurement rationale for this design decision?

Easier items increase test validity by better matching the curriculum
Items near p = 0.50 maximize score variance and therefore maximize the test's ability to discriminate between examinees✔️
Difficult items are more motivating and encourage deeper learning
NRT scoring rules require that exactly half the students pass each item

Correct Answer Logic:

The core purpose of a norm-referenced test is to rank examinees along a continuum. Score variance is the statistical engine that enables ranking. Items near p = 0.50 (neither too easy nor too hard) produce maximum score variance. Items with very high or very low p-values reduce variance and thus reduce the test's discriminating power.

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General Knowledge QUESTION #4788

Question 1350

RAW is an abbreviation that stands for which of the following?

Radical Army Wing
Research and Warning
Research and Analysis Wing✔️
Regional Advisory Watch

Correct Answer Logic:

RAW (Research and Analysis Wing) is India's primary foreign intelligence agency, established in 1968 by Prime Minister Indira Gandhi.

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Chemistry QUESTION #1103

Question 1351

Predict major product 'P': cyclopentyl methyl ketone $\xrightarrow{\text{(i) HBr, benzoyl peroxide}}\xrightarrow{\text{(ii) KCN}}\xrightarrow{\text{(iii) Na(Hg)/C}_2\text{H}_5\text{OH}}$ P:

Cyclopentyl group with CH$_3$ and NC substituents
NC–CH(CH$_3$)–cyclopentyl
Cyclopentane ring with CH$_3$ and CH$_2$NH$_2$
Cyclopentane ring with CH$_3$ and CH$_2$NH$_2$ (exocyclic)✔️

Correct Answer Logic:

(i) HBr with peroxide = anti-Markovnikov addition → CH$_2$Br at the end of the methyl chain (allylic/radical). (ii) KCN substitutes Br → –CH$_2$CN. (iii) Na(Hg)/EtOH reduces CN → –CH$_2$NH$_2$. Major product: cyclopentyl group bearing –CH$_3$ transformed to –CH$_2$NH$_2$ substituent = option (4).

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Biology QUESTION #556

Question 1352

Which of the following gives blue color with iodine?

Starch✔️
Cellulose
Glycogen
All of these

Correct Answer Logic:

Starch gives blue-black color with iodine

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Chemistry QUESTION #1419

Question 1353

Enzymes act as catalysts by:

Increasing activation energy
Lowering activation energy✔️
Changing equilibrium position
None of these

Correct Answer Logic:

Enzymes are biological catalysts that speed up reactions by lowering the activation energy ($E_a$) of the reaction — they provide an alternative reaction pathway with a lower energy barrier. Importantly, enzymes do NOT change the equilibrium constant or the thermodynamic spontaneity of the reaction; they only affect the rate at which equilibrium is reached.

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Chemistry QUESTION #7184

Question 1354

A metal oxide is found to have the non-stoichiometric formula $M_{0.98}O$. If the metal $M$ exists in both $M^{2+}$ and $M^{3+}$ states, calculate the percentage of the metal that exists as $M^{3+}$.

$7.01\%$
$4.08\%$✔️
$6.05\%$
$5.08\%$

Correct Answer Logic:

Applying the principle of charge neutrality for $M_{0.98}O$:

Let the number of $M^{3+}$ ions be $x$. Then $M^{2+}$ ions are $(0.98 - x)$.
Total positive charge = Total negative charge ($2$ for one $O^{2-}$).
$3x + 2(0.98 - x) = 2 \implies 3x + 1.96 - 2x = 2 \implies x = 0.04$.
Fraction of $M^{3+} = 0.04 / 0.98 \approx 0.0408$ or $4.08\%$.

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Mathematics QUESTION #1301

Question 1355

The characteristic equation of $3y''-6y'+6y=0$ has roots:

$r=1\pm i$✔️
$r=1\pm 2i$
$r=-1\pm i$
$r=2\pm i$

Correct Answer Logic:

Dividing by 3: $y''-2y'+2y=0$. Characteristic equation: $r^2-2r+2=0\Rightarrow r=\dfrac{2\pm\sqrt{4-8}}{2}=\dfrac{2\pm 2i}{2}=1\pm i$. Complementary solution: $y_c=e^x(C_1\cos x+C_2\sin x)$.

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Accounting & Finance QUESTION #1200

Question 1356

A partnership decides to incorporate into a private company. What happens to the partners' equity accounts?

They are closed and converted into common stock.✔️
They are retained in the company's balance sheet.
They are written off as expenses.
They are transferred into the retained earnings account.

Correct Answer Logic:

When a partnership incorporates, the legal entity changes. The partners' equity accounts are closed out, and the total equity is converted into the new company's share capital (common stock). Each partner's equity balance is typically used to determine the number of shares they receive in the new corporation.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3202

Question 1357

Which hormone acts on the collecting ducts to increase water reabsorption (concentrating the urine)?

Insulin
Aldosterone
Anti-Diuretic Hormone (ADH)✔️
Thyroxine

Correct Answer Logic:

ADH (Vasopressin) inserts aquaporins into the duct walls to save water.

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Islamic Studies QUESTION #7913

Question 1358

Who was the 1st Muslim Caliph of Spain?

Abd Al-Rehman AD-Dakhil✔️
Abd Al-Jabbar
Abd Al-Malik
Hashim II bin Al-Hakam

Correct Answer Logic:

Abd al-Rahman I (AD-Dakhil) was the first Muslim ruler of Spain, establishing the Emirate of Córdoba in 756 CE. He was an Umayyad prince who escaped the Abbasid massacre and reached Spain, where he established Umayyad rule that lasted for centuries, making Córdoba a center of learning and culture.

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Mathematics QUESTION #4087

Question 1359

The number of distinct cyclic subgroups of $\mathbb{Z}_{18}$ is equal to the number of positive divisors of 18. How many such subgroups exist?

$4$
$5$
$6$✔️
$8$

Correct Answer Logic:

Divisors of $18 = 2 \times 3^2$ are: $1,2,3,6,9,18$ — exactly 6 divisors. By the subgroup theorem for cyclic groups, $\mathbb{Z}_{18}$ has exactly one cyclic subgroup of each order dividing 18, giving $6$ cyclic subgroups in total.

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Tourism & Hospitality Management QUESTION #1655

Question 1360

The Sports and Adventure Tourism course distinguishes 'sport tourism' from 'adventure tourism.' Which of the following best captures this distinction as covered in the curriculum?

Sport tourism involves only spectator events; adventure tourism involves only team sports
Sport tourism encompasses travel related to participating in or watching competitive and non-competitive sports and recreational activities; adventure tourism focuses on experiencing wilderness environments — mountains, beaches, deserts, and forests — through challenging physical activities✔️
Sport tourism is domestic only; adventure tourism is international only
Sport tourism is commercially organized; adventure tourism is always self-guided

Correct Answer Logic:

The Sports and Adventure Tourism course introduces both concepts separately: Sport Tourism is defined as vacations including playing or watching competitive/non-competitive sports or recreation, with emphasis on sport's role as a demand generator; Adventure Tourism focuses on experiencing wilderness environments (mountains, beaches, deserts, forests) through challenging activities — each with distinct planning, safety, and marketing requirements.

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