Reading Mode - Questions

Contracts QUESTION #5840

A Seller agrees to sell a custom machine to a Buyer for $450$. Later, they orally agree to add a cooling unit, raising the total price to $550$. Is the oral modification enforceable?

Yes, because the original contract was under $500$.
Yes, because modifications never require a writing under the UCC.
No, because the contract as modified falls within the Statute of Frauds.✔️
No, because custom goods always require a signed writing.

Correct Answer Logic:

UCC §2-209(3) requires a writing if the contract as modified falls within the Statute of Frauds ($500$ or more).

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Boilers Mechanical Engineering QUESTION #2454

Question 2

The Rayleigh (energy) method for approximating the fundamental natural frequency equates:

Maximum kinetic energy to maximum potential energy: $T_{max} = V_{max}$ giving $\omega_n^2 = k/m$✔️
Mean kinetic energy to mean potential energy
Damping energy to spring potential energy
Total energy to the product of mass and stiffness

Correct Answer Logic:

Rayleigh's method: for conservative systems in harmonic motion, maximum kinetic energy $T_{max}=\frac{1}{2}m(\omega_n X)^2$ equals maximum potential energy $V_{max}=\frac{1}{2}kX^2$. Setting $T_{max}=V_{max}$: $\omega_n^2=k/m$.

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Chemistry QUESTION #470

Question 3

In this process higher hydrocarbons can be cracked at lower temperature and lower pressure.

Thermal cracking
Catalytic cracking✔️
Steam cracking
Reforming

Correct Answer Logic:

No explanation provided for this question.

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Contracts QUESTION #5842

Question 4

A Seller tenders non-conforming goods to a Buyer under a shipment contract. The goods are destroyed in transit. Who bears the risk of loss?

The Buyer, because it is a shipment contract.
The Seller, because the goods were non-conforming.✔️
The Carrier, as the bailee of the goods.
The Buyer and Seller share the loss 50/50.

Correct Answer Logic:

Under UCC §2-510(1), if a tender fails to conform, the risk of loss remains on the seller until cure or acceptance.

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English QUESTION #483

Question 5

He was __________ of all valuable possessions.

Robbed✔️
Stolen
Pinched
Established

Correct Answer Logic:

'Robbed of' is the correct phrase

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Biology QUESTION #7780

Question 6

Lysosomes contain which type of enzymes?

Hydrolytic enzymes✔️
Meiotic enzymes
Oxidative enzymes
Mitotic enzymes

Correct Answer Logic:

Lysosomes are membrane-bound organelles containing acid hydrolases (hydrolytic enzymes) that digest macromolecules. Oxidative enzymes are in peroxisomes; meiotic/mitotic enzymes are involved in cell division.

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Physics QUESTION #1172

Question 7

A charge moving in a uniform static magnetic field experiences:

A force perpendicular to magnetic field and velocity✔️
Increase in momentum
Decrease in momentum
Decrease in velocity

Correct Answer Logic:

The magnetic force on a moving charge is given by the Lorentz force: $\vec{F} = q(\vec{v} \times \vec{B})$. The cross product means the force is always perpendicular to both the velocity $\vec{v}$ and the magnetic field $\vec{B}$. Since the force is perpendicular to velocity, it does no work, so speed (and hence momentum magnitude and kinetic energy) remains unchanged.

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Reading and Writing (Module-1) QUESTION #5347

Question 8

A group of paleontologists recently discovered an extensive fossil site near Gulgong, Australia. The specimens are in such excellent condition that the researchers have successfully managed to ______ detailed data regarding the prehistoric organisms, including their coloration and social behaviors. Which choice completes the text with the most logical and precise word or phrase?

occupy
hoard
reserve
obtain✔️

Correct Answer Logic:

The text explains that the researchers were able to get information from the fossils, so 'obtain' is the most appropriate word.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3617

Question 9

The 'Stomata' and 'Trichomes' of a leaf are studied during which type of evaluation?

Chemical
Microscopical✔️
Physical
Organoleptic

Correct Answer Logic:

Microscopy is essential for identifying cellular characteristics of organized drugs.

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Biology Zoology Botany QUESTION #1341

Question 10

Prader-Willi syndrome is the heterozygous deletion in the long arm of chromosome at:

5
15✔️
3
None of these

Correct Answer Logic:

Prader-Willi syndrome results from loss of function of genes on the paternal copy of chromosome 15q11-q13 (long arm of chromosome 15). This is typically due to a deletion in the paternal chromosome 15. The same region, when deleted from the maternal chromosome, causes Angelman syndrome — a classic example of genomic imprinting.

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Pakistan Affairs QUESTION #319

Question 11

The name of the first Pakistani-manufactured aircraft is:

JF-17 Thunder✔️
JF-8 Thunder
JF-9 Thunder
JF-11 Thunder

Correct Answer Logic:

The JF-17 Thunder is a multi-role combat aircraft co-developed and produced in Pakistan.+1

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Library Sciences QUESTION #1558

Question 12

In Dewey Decimal Classification (DDC), the notation '020' represents which major subject division?

Philosophy and Psychology
Computer Science, Information, and General Works
Library and Information Sciences✔️
Social Sciences

Correct Answer Logic:

In DDC, the 000 class covers Computer Science, Information, and General Works. Within this class, 020 specifically represents Library and Information Sciences — the class where books about librarianship, cataloguing, and information management are classified.

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Mathematics QUESTION #1314

Question 13

The Fourier series of a function $f(x)$ on $(-\pi,\pi)$ is given by $f(x)=\dfrac{a_0}{2}+\sum_{n=1}^\infty(a_n\cos nx+b_n\sin nx)$. The coefficient $a_0$ is:

$\dfrac{1}{\pi}\int_{-\pi}^{\pi}f(x)\,dx$✔️
$\dfrac{2}{\pi}\int_{-\pi}^{\pi}f(x)\,dx$
$\int_{-\pi}^{\pi}f(x)\,dx$
$\dfrac{1}{2\pi}\int_{-\pi}^{\pi}f(x)\,dx$

Correct Answer Logic:

$a_0=\dfrac{1}{\pi}\int_{-\pi}^{\pi}f(x)\,dx$. Then $a_n=\dfrac{1}{\pi}\int_{-\pi}^{\pi}f(x)\cos nx\,dx$ and $b_n=\dfrac{1}{\pi}\int_{-\pi}^{\pi}f(x)\sin nx\,dx$. The constant term in the series is $\dfrac{a_0}{2}$.

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Islamic Studies QUESTION #7705

Question 14

What does the term ''Isnad'' refer to in Hadith?

Content of the Hadith
Chain of Narrators✔️
Classification of Hadith
None of these

Correct Answer Logic:

'Isnad' refers to the chain of narrators (chain of transmission) in a Hadith. It lists the series of people who transmitted the Hadith from the Prophet (PBUH) to the final compiler, establishing the authenticity and reliability of the narration.

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HR and Management QUESTION #6425

Question 15

According to the text, which factor has contributed most significantly to the proliferation and importance of HR functions through extensive record-keeping requirements?

Technological advancement and automation
Legislation and litigation requirements✔️
Globalization and international expansion
Workforce diversity initiatives

Correct Answer Logic:

Legislation and litigation have contributed enormously to the proliferation of HR functions. The record-keeping and reporting requirements of laws (equal employment, compensation, safety, labor relations) are so extensive that HR departments must work countless hours and often hire additional staff to comply.

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Chemistry QUESTION #433

Question 16

Which element forms long chains alternating with oxygen?

Carbon
Silicon
Nitrogen
All of these✔️

Correct Answer Logic:

Silicon, carbon and other elements can form chains with oxygen

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General Abilities QUESTION #2821

Question 17

The ratio of milk to water in a mixture is $7:3$. If the mixture contains 60 litres total, how many litres of milk are there?

35
40
42✔️
45

Correct Answer Logic:

Total parts $= 7 + 3 = 10$. Milk $= \dfrac{7}{10} \times 60 = 42$ litres.

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Boilers Mechanical Engineering QUESTION #2535

Question 18

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 #4657

Question 19

Pakistan formally left CENTO (Central Treaty Organization) in which year?

1971
1975
1979✔️
1981

Correct Answer Logic:

Pakistan left CENTO in 1979, the same year the organization was dissolved following the Iranian Revolution and the withdrawal of Iran.

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Geography QUESTION #1249

Question 20

Natural levees are associated with:

Alluvial fans
Flood plains✔️
Deltas
None of these

Correct Answer Logic:

Natural levees are low ridges of alluvial sediment built up along the banks of a river, formed when floodwaters overflow and deposit their heaviest sediment load immediately adjacent to the channel. They are characteristic features of flood plains. As the river repeatedly floods, these ridges grow higher and help confine the river channel.

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