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Security Measures to Maintain Law and Order QUESTION #892

Question 1781

Which international body conducts "USAP" (Universal Security Audit Programme) to ensure ASF maintains order?

UN Security Council
ICAO✔️
INTERPOL
IATA

Correct Answer Logic:

ICAO's USAP audits member states (including Pakistan) to ensure compliance with Annex 17 security standards.

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Biology Zoology Botany QUESTION #1367

Question 1782

What is the characteristic feature of the Fabaceae family?

Composite flowers
Opposite leaves
Papilionaceous corolla✔️
Parallel venation

Correct Answer Logic:

Fabaceae (legume family, previously Leguminosae) is characterised by the papilionaceous (butterfly-like) corolla consisting of 5 petals: 1 standard (vexillum), 2 wings (alae), and 2 fused keel petals (carina). Other features include compound leaves, stipules, and the presence of root nodules with nitrogen-fixing Rhizobium bacteria.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3199

Question 1783

'Surfactant' in the alveoli prevents lung collapse by:

Increasing surface tension
Reducing surface tension✔️
Killing bacteria
Warming the air

Correct Answer Logic:

Surfactant (secreted by Type II pneumocytes) keeps the tiny air sacs open.

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Mathematics QUESTION #6041

Question 1784

If $\alpha$ and $\beta$ are the two roots of $x^2+2x+2=0$, find $\alpha^{15}+\beta^{15}$.

-256✔️
512
-512
256

Correct Answer Logic:

Roots: $x=\frac{-2\pm\sqrt{4-8}}{2}=-1\pm i$. So $\alpha=-1+i, \beta=-1-i$.

In polar form: $|\alpha|=\sqrt{2}$, $\arg(\alpha)=\frac{3\pi}{4}$. So $\alpha=\sqrt{2}\,e^{i3\pi/4}$.

$\alpha^{15}=(\sqrt{2})^{15}e^{i\cdot45\pi/4}=2^{15/2}e^{i\pi/4}$ (since $45\pi/4=11\pi+\pi/4$, so $e^{i45\pi/4}=e^{i\pi/4}\cdot(-1)^{11}=-e^{i\pi/4}$... careful: $45/4=11.25$, $11\pi+\pi/4$, $e^{i(11\pi+\pi/4)}=e^{i\pi}\cdot e^{i\pi/4} \cdot (-1)^{10}... $)

More cleanly: $\alpha^{15}+\beta^{15}=2\,\text{Re}(\alpha^{15})=2(\sqrt{2})^{15}\cos\!\left(\frac{45\pi}{4}\right)$. Since $\cos(45\pi/4)=\cos(\pi/4+11\pi)=-\cos(\pi/4)=-\frac{1}{\sqrt{2}}$: $=2\cdot2^{15/2}\cdot(-\frac{1}{\sqrt{2}})=-2^{15/2+1-1/2}=-2^8=-\mathbf{256}$

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5713

Question 1785

The 'Pyrogen Test' in parenterals is performed to detect:

Living microorganisms
Endotoxins from gram-negative bacteria✔️
Visible particulate matter
pH variations

Correct Answer Logic:

Pyrogens are metabolic products of microorganisms (mostly endotoxins) that cause fever.

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Planning QUESTION #4997

Question 1786

What does 'primate city' phenomenon indicate in urban systems?

Equal distribution of city sizes
Dominance of one disproportionately large city✔️
Multiple cities of similar size
Declining urban population

Correct Answer Logic:

A primate city is disproportionately larger (typically 2+ times) than the second-largest city, dominating the urban system economically and politically. Common in developing countries, it often indicates centralized development and regional imbalances.

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Chemistry QUESTION #5524

Question 1787

Match the following: Column I — (A) Allosteric effect, (B) Competitive inhibitor, (C) Receptor, (D) Poison; Column II — (P) Molecule binding to the active site, (Q) Molecule crucial for body communication, (R) Molecule binding to a site other than the active site, (S) Molecule binding covalently to the enzyme

$(A)\to(R);\ (B)\to(P);\ (C)\to(Q);\ (D)\to(S)$✔️
$(A)\to(P);\ (B)\to(R);\ (C)\to(Q);\ (D)\to(S)$
$(A)\to(R);\ (B)\to(P);\ (C)\to(S);\ (D)\to(Q)$
$(A)\to(P);\ (B)\to(R);\ (C)\to(S);\ (D)\to(Q)$

Correct Answer Logic:

Allosteric effect: A molecule binds to a site other than the active site, altering enzyme activity → (R). Competitive inhibitor: A molecule structurally similar to the substrate binds the active site → (P). Receptor: Molecules (like hormones/neurotransmitters) crucial for body communication bind receptors → (Q). Poison: Poisons like heavy metal ions bind enzymes covalently and permanently inactivate them → (S).

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Math Physics Chemistry Biology QUESTION #4193

Question 1788

Which of the following statement is incorrect with reference to the enzyme action?

Substrate binds with the enzyme at its active site
Non-competitive inhibitor binds the enzyme at a site distinct from that of active site
Addition of a lot of succinate do not reverse the inhibition of succinic dehydrogenase by malonate✔️
malonate is a competitive inhibitor of succinic dehydrogenase

Correct Answer Logic:

Adding excess succinate can reverse competitive inhibition by malonate, so this statement is incorrect.

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Library Sciences QUESTION #1575

Question 1789

Which of the following is a mandatory requirement before library materials can be officially written off in most institutional library procedures?

User demand statistics must show zero interest
A formal inquiry or board decision must establish the reason (loss, damage, obsolescence) with supporting documentation and authorized approval✔️
The library director may independently write off any item at will
Items must first be offered for public sale

Correct Answer Logic:

Standard write-off procedures require: identification of the item and reason (loss/damage/obsolescence), a formal report or inquiry, supporting documentation (e.g., police report for theft, condition report for damage), and approval from a designated authority (board, committee, or senior management) before items are removed from official records.

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English QUESTION #8464

Question 1790

Restive is the opposite of:

Buoyant
Placid✔️
Resistant
Restless

Correct Answer Logic:

Restive means restless; opposite is placid (calm).

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General Ability and Fire Fighting QUESTION #5615

Question 1791

Which of the following agents is best suited for a Class A fire?

CO2
Foam
Water✔️
Dry Powder

Correct Answer Logic:

Water is the most common and effective agent for Class A fires because it cools the ordinary combustibles (wood

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Security Measures to Maintain Law and Order QUESTION #872

Question 1792

In the event of a "Bomb Threat" against a specific flight, the aircraft must be moved to:

The main gate
The cargo terminal
An Isolated Aircraft Parking Position (IAPP)✔️
The runway center

Correct Answer Logic:

An IAPP is a pre-designated remote area located at a safe distance from other aircraft and buildings.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3395

Question 1793

'Co-enzymes' are often derived from:

Minerals
Vitamins✔️
Carbohydrates
Fats

Correct Answer Logic:

Many B-complex vitamins serve as precursors for essential co-enzymes (like $NAD^+$).

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Statistics QUESTION #1956

Question 1794

Which branch of Statistics focuses on procedures and methodology for drawing valid conclusions from data?

Descriptive Statistics
Advanced Statistics
Inferential Statistics✔️
Applied Statistics

Correct Answer Logic:

Inferential Statistics deals with methods and procedures used to draw valid conclusions or make inferences about a population based on sample data.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3143

Question 1795

The 'Epididymis' is the site where sperm:

Are produced
Mature and are stored✔️
Are mixed with alkaline fluid
Are destroyed

Correct Answer Logic:

Sperm spend about $20$ days in the epididymis to gain motility.

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Administration QUESTION #2950

Question 1796

"Ethical Relativism" in business ethics is the belief that:

There are universal ethical truths that apply to all cultures
Morality is dependent on cultural or individual perspectives✔️
Profit should always be prioritized over ethical considerations
None of these

Correct Answer Logic:

Relativism suggests that what is "right" or "wrong" is not absolute but varies based on the social or cultural context.

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Political Science QUESTION #6659

Question 1797

Who authored the famous political treatise 'The Republic'?

Aristotle
Plato✔️
Socrates
None of these

Correct Answer Logic:

Plato's 'The Republic' explores justice and the concept of the Philosopher King.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3134

Question 1798

The 'Medulla Oblongata' contains vital centers for:

Memory and emotion
Heart rate and respiration✔️
Vision and hearing
Digestion only

Correct Answer Logic:

The brainstem controls basic life-sustaining functions.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5795

Question 1799

Which of the following is a barrier to effective communication?

Filtering✔️
Feedback
Encoding
Channel

Correct Answer Logic:

Filtering is a barrier where the sender manipulates information[cite: 7].

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Planning QUESTION #4989

Question 1800

What does the 'Marchetti constant' suggest about urban form?

Cities should be circular
Average commute time remains stable at ~30 minutes✔️
Population density decreases exponentially
Building heights should be uniform

Correct Answer Logic:

Cesare Marchetti observed that throughout history, people budget approximately 30-60 minutes (average ~30) for one-way commuting, regardless of transportation mode. This constrains city size and influences urban sprawl patterns as speeds increase.

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