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Accounting & Finance QUESTION #1207

A manufacturing company is considering whether to produce in-house or outsource production. Relevant costs for this decision include:

Fixed costs of the company.
Historical costs of production.
Direct variable costs and outsourcing costs.✔️
Total costs incurred in the prior year.

Correct Answer Logic:

In a make-or-buy (outsourcing) decision, only relevant (incremental/differential) costs matter. These include direct variable costs of in-house production and the cost of outsourcing. Fixed costs that remain unchanged regardless of the decision are irrelevant. Historical (sunk) costs are also irrelevant as they cannot be changed.

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Security Measures to Maintain Law and Order QUESTION #838

Question 2

To maintain law and order, the Federal Government may delegate its powers to the DG under:

Section 8
Section 9✔️
Section 11
Section 13

Correct Answer Logic:

Section 9 allows the Federal Government to delegate its powers to the DG or any other authority.

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Quantitative Reasoning QUESTION #8144

Question 3

The activists' energetic participation in both the women's suffrage and temperance movements in the late nineteenth century (i)_______ the assertion that the two movements were (ii)_______.

undermines .. inimical✔️
supports .. inimical
underscores .. diffuse
undermines .. diffuse

Correct Answer Logic:

If activists worked energetically for both movements simultaneously, this undermines the claim that the movements were inimical (hostile/opposed to each other). One cannot be actively hostile to something while vigorously championing it. 'Supports' would mean the activism confirms their antagonism — impossible logic. 'Diffuse' means spread out/unfocused, which doesn't capture the idea of two movements being at odds.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3655

Question 4

'Nux Vomica' contains which toxic alkaloid?

Caffeine
Strychnine✔️
Nicotine
Quinine

Correct Answer Logic:

Strychnine is a potent CNS stimulant and poison.

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Electrical Engineering QUESTION #2146

Question 5

In Power System Analysis, the Slack Bus is used to:

Fix the real and reactive power ($P$ and $Q$)
Provide the reference for voltage magnitude $V$ and angle $\delta$✔️
Compensate for transmission losses only
Monitor the power factor of the grid

Correct Answer Logic:

The Slack (Swing) bus serves as the reference where $V$ and $\delta$ are specified to balance the real and reactive power in the system.

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Biology QUESTION #7275

Question 6

Which one of the following is considered most important in the development of seed habit?

Free-living gametophyte
Dependent sporophyte
Heterospory✔️
Haplontic life cycle

Correct Answer Logic:

Heterospory (production of two types of spores — microspores and megaspores) is the most critical precondition for seed habit. The megaspore is retained within the megasporangium, the female gametophyte develops endosporically, and after fertilization it is nourished by the parent plant — essentially forming a seed. This is seen in Selaginella and Salvinia among pteridophytes.

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Biology Zoology Botany QUESTION #1382

Question 7

Which of the following is NOT a characteristic of algae?

Autotrophic
Multicellular
Lack true roots, stems, and leaves
All algae are microscopic✔️

Correct Answer Logic:

Not all algae are microscopic — this is the FALSE statement. Giant kelp (Macrocystis pyrifera) can grow up to 60 metres long. Algae are autotrophic (mostly), lack true roots/stems/leaves (they have thallus), and can be unicellular or multicellular. The statement that 'all algae are microscopic' is incorrect.

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English Literature QUESTION #10733

Question 8

In Marlowe's Doctor Faustus, Faustus asks two magicians to aid him in summoning the devil. What are their names?

Valdes and Cornelius✔️
Rosencrantz and Guildenstern
Troilus and Cressida
Pyramus and Thisbe

Correct Answer Logic:

In Marlowe's Doctor Faustus, Faustus is aided by Valdes and Cornelius — two learned magicians who teach him the art of necromancy and help him prepare to summon Mephistopheles. Rosencrantz and Guildenstern are characters from Shakespeare's Hamlet; Troilus and Cressida and Pyramus and Thisbe are also Shakespearean pairs.

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English Literature QUESTION #711

Question 9

"The world is too much with us" is a sonnet by:

P.B. Shelley
William Wordsworth✔️
Lord Byron
John Keats

Correct Answer Logic:

This poem criticizes the First Industrial Revolution for distancing humanity from nature.

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Math Physics Chemistry Biology QUESTION #4324

Question 10

Which part of the human brain maintains posture and balance of the body?

Cerebrum
Cerebellum✔️
Hypothalamus
Medulla oblongata

Correct Answer Logic:

The cerebellum coordinates voluntary muscle movement, maintains posture, and controls balance and equilibrium by receiving sensory input from muscles and the inner ear.

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Math Physics Chemistry Biology QUESTION #4238

Question 11

After liver transplant, doctors suppress the T-lymphocyte activity in patient. Why?

To increase the rate of antibody production
To prevent infections
To avoid graft rejection immune system✔️
To produce antibodies faster

Correct Answer Logic:

Suppressing T-lymphocytes prevents graft rejection.

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Boilers Mechanical Engineering QUESTION #2507

Question 12

The neutral axis of a beam cross-section in pure bending is the axis about which:

Stress is maximum
The second moment of area is minimum
Bending strain and stress are zero — it passes through the centroid✔️
The shear stress is zero

Correct Answer Logic:

In pure bending, the neutral axis is the axis of zero longitudinal strain and stress. By the condition $\int y\,dA = 0$ (from equilibrium), the neutral axis passes through the centroid of the cross-section.

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Reading and Writing (Module-1) QUESTION #5360

Question 13

Marianne Moore’s 1919 poem 'Poetry' discusses a complicated relationship with the art form, admitting its value while also showing some dislike. Which quotation from 'Poetry' most effectively illustrates the claim?

'nor is it valid / to discriminate against 'business documents and/ school-books'; all these phenomena are important.'
'One must make a distinction / however: when dragged into prominence by half poets, the result is not / poetry'
'when [poems] become so derivative as to become unintelligible, the / same thing may be said for all of us that we / do not admire what / we cannot understand.'
'Reading [poetry], however, with a perfect contempt for it, one discovers that there is in / it after all, a place for the genuine.'✔️

Correct Answer Logic:

This quote explicitly mentions 'perfect contempt' (displeasure) alongside finding 'the genuine' (merit).

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Dairy Food Science and Technology QUESTION #5953

Question 14

During ice cream mix processing, homogenization of the mix serves to:

Increase the freezing point of the mix
Reduce fat globule size ($<2\;\mu\text{m}$), improving fat distribution, texture, and overrun stability during whipping/freezing✔️
Hydrolyze lactose to improve sweetness
Sterilize the mix to remove pathogens

Correct Answer Logic:

Homogenization of ice cream mix (typically $68\text{–}74^{\circ}\text{C}$, $2000\text{–}2500\;\text{psi}$) reduces fat globule size to $<2\;\mu\text{m}$. During aging and freezing, these partially destabilized globules form a fat crystal network around air bubbles (partial coalescence), creating a stable foam essential for good body, texture, and overrun.

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Aptitude QUESTION #10927

Question 15

The architectural style of Sanchi Stupa belongs to which period, and its gateway carvings are called?

Gupta period; Vedika
Mauryan-Shunga period; Torana✔️
Chola period; Gopuram
Mughal period; Pishtaq

Correct Answer Logic:

Sanchi Stupa (Madhya Pradesh):

Period: Originally built by Emperor Ashoka (Mauryan, 3rd century BCE), elaborated during Shunga period.
Gateways: Called Torana (ornate stone gateways), four in number — North, South, East, West.
The gateways depict scenes from the Buddha's life and Jataka tales.
Vedika = railing/fence. Gopuram = South Indian temple tower. Pishtaq = Mughal arch facade.

This is a UNESCO World Heritage Site and a foundational example of Buddhist architecture.

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Physics QUESTION #7069

Question 16

A solid object with a constant heat capacity of $1 \text{ J/}^\circ\text{C}$ is heated from $100^\circ\text{C}$ to $200^\circ\text{C}$. In Case A, it is placed in contact with 2 reservoirs sequentially. In Case B, it is placed in contact with 8 reservoirs sequentially. What is the entropy change of the body in these two cases respectively?

$\ln 2, 4\ln 2$
$\ln 2, \ln 2$✔️
$\ln 2, 2\ln 2$
$2\ln 2, 8\ln 2$

Correct Answer Logic:

Entropy is a state function. This means the change in entropy depends only on the initial and final states of the system, not on the path or the number of intermediate steps taken to reach that state.

Since the body is heated from an initial temperature $T_1 = 373 \text{ K}$ to a final temperature $T_2 = 473 \text{ K}$ in both cases, the entropy change $\Delta S$ of the body will be identical in both scenarios.

$\Delta S = \int \frac{dQ}{T} = \int_{T_1}^{T_2} \frac{ms dT}{T} = C \ln \left( \frac{T_2}{T_1} \right)$.

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Physics QUESTION #1031

Question 17

A particle of mass $m$ moves around the origin under constant force $F$ towards origin. Using Bohr model, how do radius $r$ of $n$th orbit and speed $v$ depend on $n$?

$r \propto n^{2/3};\ v \propto n^{1/3}$✔️
$r \propto n^{4/3};\ v \propto n^{-1/3}$
$r \propto n^{1/3};\ v \propto n^{1/3}$
$r \propto n^{1/3};\ v \propto n^{2/3}$

Correct Answer Logic:

For circular orbit under constant force: $F = \frac{mv^2}{r}\Rightarrow v^2 = \frac{Fr}{m}$. Bohr quantization: $mvr = \frac{nh}{2\pi}\Rightarrow v = \frac{nh}{2\pi mr}$. Substituting: $\frac{F r}{m} = \frac{n^2h^2}{4\pi^2m^2r^2}\Rightarrow r^3 \propto n^2\Rightarrow r \propto n^{2/3}$. Then $v \propto \frac{n}{r} \propto \frac{n}{n^{2/3}} = n^{1/3}$.

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Logical Reasoning QUESTION #4430

Question 18

The virus spreads rapidly in the town. It infected the people — First day: $8$, Second day: $16$, Third day: $32$. What will the number of infected people be on the next day?

44 people
56 people
64 people✔️
74 people

Correct Answer Logic:

The number of infected people doubles each day: $8 \rightarrow 16 \rightarrow 32 \rightarrow\ ?$. This is a geometric progression with common ratio $r = 2$. Next term $= 32 \times 2 = 64$ people.

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Chemistry QUESTION #5548

Question 19

Arrange the ionic radii of $N^{3-}$, $O^{2-}$, and $F^-$ in correct increasing order (in Å):

1.36, 1.40 and 1.71 respectively
1.36, 1.71 and 1.40 respectively
1.71, 1.40 and 1.36 respectively✔️
1.71, 1.36 and 1.40 respectively

Correct Answer Logic:

All three ions are isoelectronic (10 electrons each). As nuclear charge increases ($N(7) < O(8) < F(9)$), the electrons are pulled closer, so ionic radius decreases. Therefore: $r(N^{3-}) > r(O^{2-}) > r(F^-)$, i.e., 1.71 Å > 1.40 Å > 1.36 Å.

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General Knowledge QUESTION #275

Question 20

World Snooker Championship 2023 was held in:

England✔️
Scotland
Ireland
None of these

Correct Answer Logic:

The 2023 championship was held at the Crucible Theatre in Sheffield, England.+1

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