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Math Physics Chemistry Biology QUESTION #11390

Normal gestation period in humans is about __ days:

200–250
270–280✔️
275–280
280–290

Correct Answer Logic:

The normal human gestation period is approximately 270–280 days (about 38–40 weeks) from conception to birth. Clinically, pregnancy is calculated as 40 weeks from the last menstrual period (LMP). Full-term births occur between 37–42 weeks; births before 37 weeks are considered preterm.

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Boilers Mechanical Engineering QUESTION #2535

Question 7302

The scalar triple product $\mathbf{A} \cdot (\mathbf{B} \times \mathbf{C})$ geometrically represents:

The magnitude of the vector $\mathbf{B} \times \mathbf{C}$
The volume of the parallelepiped formed by $\mathbf{A}$, $\mathbf{B}$, $\mathbf{C}$✔️
The area of the triangle formed by the three vectors
The dot product of $\mathbf{B}$ and $\mathbf{C}$ projected onto $\mathbf{A}$

Correct Answer Logic:

The scalar triple product $\mathbf{A}\cdot(\mathbf{B}\times\mathbf{C})$ equals the volume of the parallelepiped whose three edges are represented by vectors $\mathbf{A}$, $\mathbf{B}$, and $\mathbf{C}$. If the result is zero, the vectors are coplanar.

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Pakistan Affairs QUESTION #137

Question 7303

The Geneva Accords were signed on:

14th May, 1988
14th April, 1988✔️
14th June, 1988
14th July, 1988

Correct Answer Logic:

The Geneva Accords, settling the situation relating to Afghanistan, were signed on April 14, 1988.

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Reading and Writing (Module-1) QUESTION #5355

Question 7304

Bosco Verticale, a residential complex in Milan featuring towers covered in plants, has been a symbol of green architecture since 2014. Architect Stefano Boeri designed it to promote urban biodiversity. However, critics are cautious; they point out that even though the trees were specially grown for this project, it is still uncertain if they will be able to survive in such an atypical environment. According to the text, why are some critics skeptical of the concept behind Bosco Verticale?

Some essential aspects of Bosco Verticale's design are difficult to adapt to locations other than Milan.
The plant life on Bosco Verticale ended up being less varied than Boeri had envisioned it would be.
The construction of Bosco Verticale was no less environmentally damaging than the construction of more conventional buildings is.
It is unclear whether Bosco Verticale can support the plant life included in its design.✔️

Correct Answer Logic:

The text states that critics aren't sure if the trees can 'thrive in this unusual setting,' which matches option D.

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General Knowledge QUESTION #4760

Question 7305

Ringgit is the currency unit of which country?

Singapore
Philippines
Malaysia✔️
Indonesia

Correct Answer Logic:

The Malaysian Ringgit (MYR) is the official currency of Malaysia, introduced in 1967 when the country separated from the shared Malayan dollar.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3449

Question 7306

'Competitive Inhibition' can be overcome by:

Decreasing temperature
Increasing substrate concentration✔️
Adding more enzyme
Removing water

Correct Answer Logic:

More substrate 'out-competes' the inhibitor for the active site.

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General Knowledge QUESTION #11535

Question 7307

A modern Personal Computer (PC) is fundamentally a:

Microprocessor-based computing device✔️
Mainframe computer
Workstation
Server

Correct Answer Logic:

A personal computer (PC) is a microprocessor-based computing device designed for use by a single individual. It uses a microprocessor (CPU on a single chip) as its processing unit. PCs include desktops, laptops, and tablets, distinguished from mainframes (multi-user) and servers (provide services to other computers).

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Accounting & Finance QUESTION #9639

Question 7308

A business sells goods at a margin of 20% on sales. Opening Stock Rs. 10,000; Purchases Rs. 90,000; Closing Stock Rs. 20,000. What are the Sales?

Rs. 100,000
Rs. 80,000
Rs. 112,500✔️
Rs. 125,000

Correct Answer Logic:

COGS = 10,000 + 90,000 – 20,000 = Rs. 80,000. Margin = GP/Sales. Since margin is 20%, COGS = 80% of Sales. Sales = 80,000 × 100/80 = Rs. 100,000. Wait – this is 100,000. Actually COGS/Sales = 80%, so Sales = 80,000/0.80 = Rs. 100,000. However, if COGS = 80,000 and margin is 20%: Sales = 80,000/0.80 = 100,000. The correct answer is Rs. 100,000. Note: option_3 (Rs. 112,500) would apply if COGS were Rs. 90,000. The correct option is 0 (Rs. 100,000).

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MCQs Section QUESTION #4848

Question 7309

Choose the word nearly similar in meaning to "SAMIZDAT"

Underground press✔️
Secret police
Twirling jig
Large metal tea urn

Correct Answer Logic:

Samizdat was the clandestine copying and distribution of banned literature in the Soviet Union. It literally means 'self-published' and refers to an underground press.

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General Knowledge QUESTION #8945

Question 7310

Which Nobel Prize category was NOT established by Alfred Nobel?

Peace
Literature
Economics✔️
Medicine

Correct Answer Logic:

The Economics Prize was added later.

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Chemistry QUESTION #7174

Question 7311

In the context of the Bohr model of the atom, which of the following statements is true regarding the angular momentum of an electron in a hydrogen-like atom?

It is proportional to $\sqrt{n}$
It is an integral multiple of $\frac{h}{2\pi}$✔️
It is independent of the orbit number
It is proportional to $n^{2}$

Correct Answer Logic:

Bohr's second postulate states that the angular momentum ($L$) of an electron orbiting the nucleus is quantized and can only take values that are integral multiples of $\frac{h}{2\pi}$. Mathematically: $mvr = \frac{nh}{2\pi}$, where $n = 1, 2, 3...$

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3371

Question 7312

'Endemic' means a disease is:

Constantly present in a certain population or area✔️
Found only in the air
Very deadly
Easily cured

Correct Answer Logic:

For example, Malaria is endemic in certain tropical regions.

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Chemistry QUESTION #7368

Question 7313

What is the maximum number of electrons that can be associated with quantum numbers $n=3$, $\ell=1$, and $m=-1$?

2✔️
10
6
4

Correct Answer Logic:

For $n=3, \ell=1$ (3p subshell), $m=-1$ specifies a single orbital (one of the three 3p orbitals). Each orbital holds a maximum of 2 electrons (with opposite spins, $s = +\frac{1}{2}$ and $s = -\frac{1}{2}$), by the Pauli exclusion principle.

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Chemistry QUESTION #7395

Question 7314

The most basic oxide among the following is:

SeO₂
Al₂O₃
Sb₂O₃
Bi₂O₃✔️

Correct Answer Logic:

Metallic character and basicity of oxides:
Basic character of oxides increases with metallic character. In group 15: N₂O₃ (acidic) → P₄O₆ (acidic) → As₂O₃ (weakly acidic/amphoteric) → Sb₂O₃ (amphoteric) → Bi₂O₃ (basic).

Bi is the most metallic of the group 15 elements. SeO₂ and Al₂O₃ are amphoteric. Bi₂O₃ is the most basic oxide listed.

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English Literature QUESTION #10751

Question 7315

What is defined as "the study of sentence structure"?

Morphology
Semantics
Phonology
Syntax✔️

Correct Answer Logic:

Syntax is the branch of linguistics concerned with the rules and principles governing sentence structure — how words combine to form phrases, clauses, and sentences. It examines word order, grammatical relations (subject, object), and hierarchical structure (phrase structure trees). Morphology studies word formation; Semantics studies meaning; Phonology studies sound systems.

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Islamic Studies QUESTION #345

Question 7316

The Annual Fair of Ukaz in pre-Islamic Arabia was held at:

Makkah
Madina
Riaz
Taif✔️

Correct Answer Logic:

The Souq Okaz was the largest and best-known pan-Arab market, located between Taif and Makkah.+1

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Administration QUESTION #9554

Question 7317

Pakistan's federal structure creates a concurrent legislative list under the Constitution. What is the practical administrative implication when the Federal Government creates a welfare programme but relies on provincial governments to implement it?

It violates the principle of unity of direction — each programme must have one head and one plan within a single governmental tier
It creates overlapping authority that may produce inconsistency in implementation standards, accountability gaps and inter-governmental coordination challenges✔️
It requires that provincial civil servants involved in implementation be deputationed to the federal government for the duration of the programme
It necessitates that the National Economic Council formally approve the programme before provinces can begin implementation

Correct Answer Logic:

When federal policy is implemented provincially, administrative accountability becomes fragmented — the federal government sets policy but lacks direct control over delivery, while provinces implement but may not share the same objectives or resources. This produces the classic problem of federal-provincial coordination failure, inconsistent service delivery, and blurred accountability — a structural challenge unique to public (not private) administration.

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Chemistry QUESTION #7411

Question 7318

If the first ionisation enthalpies of Na, Mg, and Si are 496, 737, and 776 kJ/mol respectively, then the first ionisation enthalpy of Al (kJ/mol) is:

Greater than 766
Between 496 and 737✔️
Between 737 and 766
Greater than 496

Correct Answer Logic:

Al lies between Mg and Si. However, Al (3p¹) has a lower IE₁ than Mg (3s², fully filled s-subshell) due to the 3p electron being easier to remove. Al also has lower IE₁ than Si (3p²).

Therefore: IE₁(Al) lies between Na and Mg → between 496 and 737 kJ/mol (approximately 577 kJ/mol). This is the well-known anomaly where Al < Mg in ionisation energy despite being to the right of Mg.

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Administration QUESTION #2923

Question 7319

When an administrator transfers specific tasks and decision-making power to subordinates, it is known as:

Centralization
Delegation✔️
Regulation
Bureaucratization

Correct Answer Logic:

Delegation allows managers to distribute the workload and empower lower-level employees to handle specific responsibilities.

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Quantitative Reasoning QUESTION #7209

Question 7320

Historical inquiry reveals two somewhat opposing truths that once sounded (i)_____ but now seem profound: all knowledge of the past derives entirely from written documents, lending written words immense (ii)_____, and the more source material one uncovers, the more (iii)_____ the subject becomes.

Blank (i)	Blank (ii)	Blank (iii)
A. deep	D. consequence	G. elusive
B. portentous	E. antiquity	H. contemporary
C. banal	F. simultaneity	I. circumstantial

Blank (i) = deep, , Blank (ii) = consequence, Blank (iii) = elusive
Blank (i) = portentous,, Blank (ii) = antiquity, Blank (iii) = contemporary
Blank (i) = banal, Blank (ii) = consequence, Blank (iii) = elusive✔️
Blank (i) = banal, Blank (ii) = antiquity, Blank (iii) = circumstantial

Correct Answer Logic:

This three-blank question requires identifying the logical relationship between ideas.

Blank (i): The sentence says these truths “sounded _____ but come to seem profound.” The contrast needs a word meaning the opposite of profound — something that initially sounds obvious or unimpressive. Banal means commonplace, unoriginal, or dull. A banal-sounding truth that becomes profound is the classic “deceptively simple” insight. “Deep” and “portentous” both imply weightiness — the opposite of what’s needed here.

Blank (ii): Since all historical knowledge flows from written documents, those documents carry enormous importance. Consequence means importance or significance. “Antiquity” relates to age (not the point), and “simultaneity” means occurring at the same time (irrelevant).

Blank (iii): The paradox is that more material makes the subject harder to pin down. Elusive means hard to grasp or define — perfect. “Contemporary” means modern (irrelevant), and “circumstantial” means based on indirect evidence (doesn’t fit the logic).

Correct Answers: Blank (i) = C (banal), Blank (ii) = D (consequence), Blank (iii) = G (elusive).

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