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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3673

Question 1

Which drug is an 'Expectorant' (helps clear mucus)?

Senna
Vasaka (Adhatoda)✔️
Aloe
Castor oil

Correct Answer Logic:

Vasaka is a traditional remedy for bronchitis and cough.

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Pakistan Affairs QUESTION #4663

Question 2

How many medals did Pakistan win at the 18th Commonwealth Games in Melbourne 2006?

3
5✔️
7
9

Correct Answer Logic:

Pakistan won 5 medals at the 2006 Commonwealth Games held in Melbourne, Australia.

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Accounting & Finance QUESTION #1229

Question 3

A zero-coupon bond sells for $ 250. At maturity in 16 years, it will be redeemed for $ 1,000. What approximate annual rate of growth does this represent?

8 percent✔️
9 percent
12 percent
25 percent

Correct Answer Logic:

Using the future value formula: $FV = PV \times (1+r)^n$. So $1000 = 250\times(1+r)^{16}$. $(1+r)^{16} = 4$. $1+r = 4^{1/16} = 4^{0.0625}$. $\ln(1+r) = \frac{\ln 4}{16} = \frac{1.386}{16} = 0.0866$. $1+r = e^{0.0866} \approx 1.0905$. So $r \approx 9\%$. Wait: $4^{1/16}$: $\log(4)/16 = 0.602/16=0.0376$, antilog $=1.089$, so $r\approx 9\%$ = option (B). Re-examining: $4^{0.0625}=1.0905\Rightarrow r\approx9\%$. Answer: option (B) = 9 percent.

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Biology QUESTION #4332

Question 4

Why are retroviruses placed in a separate class of RNA viruses?

They always infect animal cells only
Their RNA acts directly as mRNA
They lack protein coats
They use reverse transcriptase to make DNA from RNA✔️

Correct Answer Logic:

Retroviruses (e.g., HIV) carry reverse transcriptase, which synthesizes DNA from their RNA genome — the reverse of the normal DNA $\rightarrow$ RNA flow, hence the name retrovirus.

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MCQs Section QUESTION #4856

Question 5

Choose the word nearly opposite in meaning to "LARCENY"

Appropriation
Peculation
Purloining
Indemnification✔️

Correct Answer Logic:

Larceny means the unlawful taking of someone's property; theft. Its antonym is 'indemnification,' meaning compensation for harm or loss — the opposite of taking something illegally.

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Quantitative Reasoning QUESTION #8007

Question 6

Winsor McCay, the cartoonist, could draw with incredible -------; his comic strip about Little Nemo was characterized by marvelous draftsmanship and sequencing.

sincerity
efficiency
virtuosity✔️
rapidity

Correct Answer Logic:

The sentence praises McCay's exceptional drawing ability, evidenced by 'marvelous draftsmanship.' Virtuosity (meaning exceptional skill or technique) is correct: McCay drew with incredible virtuosity, as demonstrated by the marvelous quality of his work.

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Boilers Mechanical Engineering QUESTION #2498

Question 7

In Mohr's circle for plane stress, the principal stresses $\sigma_1$ and $\sigma_2$ occur at points where:

The circle has maximum radius
The circle intersects the $\sigma$-axis (shear stress $\tau = 0$)✔️
The shear stress is maximum
The normal stress equals the average stress

Correct Answer Logic:

Principal stresses are defined as the normal stresses acting on planes where shear stress is zero. On Mohr's circle, these correspond to the two points where the circle intersects the horizontal $\sigma$-axis (i.e., $\tau = 0$).

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Urdu QUESTION #5288

Question 8

پاکستان میں اردو کو قومی زبان کب قرار دیا گیا؟

1953
1954
1955
1956✔️

Correct Answer Logic:

پاکستان میں اردو کو 1956ء کے آئین کے ذریعے قومی زبان کا درجہ دیا گیا۔

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Mathematics QUESTION #6979

Question 9

For three events $A$, $B$, $C$:
$P(\text{exactly one of }A\text{ or }B) = P(\text{exactly one of }B\text{ or }C) = P(\text{exactly one of }C\text{ or }A) = \dfrac{1}{4}$
$P(A\cap B\cap C) = \dfrac{1}{16}$.
Find $P(\text{at least one of }A, B, C\text{ occurs})$.

$\dfrac{7}{32}$
$\dfrac{7}{16}$✔️
$\dfrac{7}{64}$
$\dfrac{3}{16}$

Correct Answer Logic:

Use: $P(\text{exactly one of }X\text{ or }Y) = P(X)+P(Y)-2P(X\cap Y)$.

Adding all three equations:

$2[P(A)+P(B)+P(C)] - 2[P(A\cap B)+P(B\cap C)+P(C\cap A)] = \dfrac{3}{4}$

$\Rightarrow P(A)+P(B)+P(C) - [P(A\cap B)+P(B\cap C)+P(C\cap A)] = \dfrac{3}{8}$ ...(i)

Using inclusion-exclusion:

$P(A\cup B\cup C) = P(A)+P(B)+P(C)-P(A\cap B)-P(B\cap C)-P(C\cap A)+P(A\cap B\cap C)$

$= \dfrac{3}{8} + \dfrac{1}{16} = \dfrac{6}{16}+\dfrac{1}{16} = \dfrac{7}{16}$

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Boilers Mechanical Engineering QUESTION #4032

Question 10

'Steam Tables' are used by engineers to determine:

The size of the table
Thermodynamic properties of steam (Enthalpy, Entropy, Volume) at various pressures✔️
The chemical formula of water
The weight of the boiler

Correct Answer Logic:

Essential for calculating heat balance and efficiency.

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Physics QUESTION #7087

Question 11

A material has density $\rho$ and bulk modulus $K$. What is the increase in density when a uniform pressure $P$ is applied?

$\frac{\rho P}{K}$✔️
$\frac{\rho K}{P}$
$\frac{K}{\rho P}$
$\frac{PK}{\rho}$

Correct Answer Logic:

Bulk modulus $K = \rho \frac{dP}{d\rho}$.

Rearranging for change in density $d\rho$: $d\rho = \frac{\rho dP}{K}$
Given $dP = P$, the increase is $\frac{\rho P}{K}$.

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Chemistry QUESTION #7203

Question 12

Specify the total number of hydrogen isotopes and the number of those isotopes that are radioactive.

3 and 1✔️
3 and 2
2 and 1
3 and 3

Correct Answer Logic:

Total isotopes = 3 (Protium, Deuterium, and Tritium).
Radioactive isotopes = 1 (Only Tritium is radioactive, emitting low-energy $\beta^{-}$ particles).

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Tourism & Hospitality Management QUESTION #1613

Question 13

The Tourism and Hospitality Laws course addresses 'the law of tort' as relevant to hospitality operations. Which of the following scenarios would most directly engage tort law in a hotel context?

A hotel failing to renew its business registration on time
A guest slipping on an unmarked wet floor in the hotel lobby and sustaining injury due to the hotel's negligence✔️
A chef preparing food that does not meet a guest's flavor preference
A hotel raising its room rates during peak season

Correct Answer Logic:

The Tourism and Hospitality Laws course covers torts — specifically negligence, trademark infringement, and fraud — in Module 2. A guest injured due to the hotel's failure to maintain safe premises (e.g., an unmarked wet floor) is a classic negligence tort scenario in which the hotel owes a duty of care and may be held liable for breach of that duty.

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Biology Zoology Botany QUESTION #1380

Question 14

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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Mathematics QUESTION #4134

Question 15

For $\vec{r} = x\hat{i} + y\hat{j} + z\hat{k}$ and $r = |\vec{r}|$, what is $\nabla r$?

$\vec{r}$
$\frac{\vec{r}}{r}$✔️
$\frac{\vec{r}}{r^2}$
$\hat{r}$

Correct Answer Logic:

$\nabla r = \frac{\partial r}{\partial x}\hat{i} + \frac{\partial r}{\partial y}\hat{j} + \frac{\partial r}{\partial z}\hat{k} = \frac{x}{r}\hat{i} + \frac{y}{r}\hat{j} + \frac{z}{r}\hat{k} = \frac{\vec{r}}{r}$.

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Mathematics QUESTION #7495

Question 16

Let $S = \{x \in \mathbb{R} : x \geq 0 \text{ and } 2|\sqrt{x}-3| + \sqrt{x}(\sqrt{x}-6) + 6 = 0\}$. Then S:

contains exactly two elements✔️
contains exactly four elements
is an empty set
contains exactly one element

Correct Answer Logic:

Simplifying: $2|\sqrt{x}-3| + x - 6\sqrt{x} + 6 = 0$. Let $t = \sqrt{x}$, so $2|t-3| + t^2 - 6t + 6 = 0$. For $t \geq 3$: $2(t-3) + t^2 - 6t + 6 = 0$, giving $t^2 - 4t = 0$, so $t=0$ or $t=4$. Only $t=4$ satisfies $t \geq 3$. For $t < 3$: $2(3-t) + t^2 - 6t + 6 = 0$, giving $t^2 - 8t + 12 = 0$, so $t=2$ or $t=6$. Only $t=2$ satisfies $t<3$. Thus $t \in \{2,4\}$, giving $x \in \{4, 16\}$. S contains 2 elements.

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Federal Rules of Evidence (US) QUESTION #3776

Question 17

In a criminal trial for armed robbery, the prosecution seeks to introduce a witness's testimony that the defendant's brother offered the witness $\$5,000$ to 'forget' what he saw. The defendant was not present during this conversation and there is no evidence he authorized it. Is this testimony admissible?

No, because it is hearsay not subject to any exception.
Yes, as a statement by a co-conspirator under Rule 801(d)(2)(E).
Yes, to show the defendant's 'consciousness of guilt' via his agent.
No, because the statement cannot be attributed to the defendant under Rule 801(d)(2).✔️

Correct Answer Logic:

Under Rule 801(d)(2), a statement is not hearsay if it is offered against an opposing party and was made by the party's agent. However, without proof of agency or authorization, the brother's statement is inadmissible hearsay against the defendant. It fails the 'opposing party's statement' test.

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English QUESTION #2719

Question 18

Which word is spelled correctly?

Separate✔️
Seperate
Saparate
Seperat

Correct Answer Logic:

A common mistake is using 'e' instead of 'a' in the middle of 'separate'.

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Reading and Writing (Module-1) QUESTION #5449

Question 19

During a 2021 launch, Rocket Labs' Electron rocket experienced a failure: second-stage booster shut down after ignition. ____ instead of downplaying it, the CEO publicly apologized.

Afterward✔️
Additionally
Indeed
Similarly

Correct Answer Logic:

"Afterward" indicates the logical sequence of events.

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CISA QUESTION #6835

Question 20

An organization conducts business impact analysis and assigns Recovery Point Objective (RPO) of 1 hour but performs full backups only weekly with no incremental backups. What is the MAXIMUM potential data loss?

1 hour
168 hours (1 week)✔️
24 hours
Unknown

Correct Answer Logic:

RPO defines maximum acceptable data loss, while backup frequency determines actual potential data loss. Weekly backups mean up to 1 week of data could be lost in a disaster. The gap between 1-hour RPO requirement and weekly backup capability represents a critical mismatch between business requirements and technical implementation.

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