Reading Mode - Questions

Geology QUESTION #10649

Groove casts, flute casts, and tool marks — which are palaeocurrent indicators — are found on the _________ surface of a sedimentary bed.

Bottom (sole)✔️
Top
Within the bed (internal)
All surfaces equally

Correct Answer Logic:

Sole marks (including groove casts, flute casts, and tool marks) are found on the bottom (sole) surface of turbidite and other clastic beds. They form as moulds preserved in the overlying bed when: (1) currents scour the seafloor (flutes, grooves) or (2) objects dragged by currents incise the substrate (tool marks). Being moulds rather than originals, they are preserved as positive relief on the base of the overlying sandstone bed.

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Physics QUESTION #1157

Question 2

The angle of incidence for which polarization is maximum is called:

Scattering angle
Angle of reflection
Polarization angle✔️
None of these

Correct Answer Logic:

The angle of incidence at which reflected light is completely polarized is called the polarization angle or Brewster's angle ($\theta_B$), given by $\tan\theta_B = n$, where $n$ is the refractive index of the denser medium.

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CISA QUESTION #1755

Question 3

Who is responsible for defining the priorities and objectives reflected in an IT balanced scorecard (BSC)?

Chief Information Officer (CIO)
Chief Financial Officer (CFO)
Chief Executive Officer (CEO)✔️
IT Steering Committee

Correct Answer Logic:

The BSC is designed to reflect the CEO's enterprise-wide vision. IT's scorecard is a subset of the CEO's overall scorecard. The primary objective is to break down departmental silos and align all functions toward a unified cross-functional workflow controlled by the CEO or COO.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3088

Question 4

The 'True Ribs' are those that:

Are not attached to the sternum
Are attached directly to the sternum via cartilage✔️
Are attached to the vertebrae only
Are made of pure muscle

Correct Answer Logic:

The first 7 pairs of ribs are 'true' because they connect directly to the sternum.

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Islamic Studies QUESTION #8238

Question 5

What was the number of prisoners of war in Jang-e-Badr?

47
71✔️
73
70

Correct Answer Logic:

In the Battle of Badr, approximately 70 prisoners were taken from the Quraish. According to the answer key, the answer is 71. The Prophet (PBUH) consulted with his companions about their fate. Eventually, many were released upon payment of ransom, and those who could teach reading and writing to Muslim children were freed in exchange for teaching 10 Muslims each. This showed the emphasis Islam places on knowledge and education.

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Chemistry QUESTION #7160

Question 6

Among the following four consecutive members of the 3d transition series, which is predicted to have the highest standard electrode potential ($E_{M^{3+}/M^{2+}}^{0}$)?

$Cr (Z=24)$
$Mn (Z=25)$
$Fe (Z=26)$
$Co (Z=27)$✔️

Correct Answer Logic:

The $E^{0}$ value for $M^{3+}/M^{2+}$ measures the stability of the $+2$ state relative to the $+3$ state. Cobalt ($Co$) has a very high positive value ($+1.97\text{ V}$) because the $Co^{2+}$ ion is significantly more stable than the $Co^{3+}$ ion in simple compounds, making the reduction very favorable.

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English QUESTION #11603

Question 7

Dr. Barnard pioneered a new _____ in heart surgery.

technology
technique✔️
method
None of these

Correct Answer Logic:

Technique is the best answer. A technique refers to a specific skillful way of doing something, especially in a professional or medical context. Technology refers to tools, machinery, or systems — too broad for a surgical approach. Method is more general and less precise than technique in the context of a specific surgical procedure.

Correct Answer: B — technique.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3482

Question 8

The 'Taxonomical' classification of drugs is based on:

Natural relationship and phylogeny✔️
Alphabetical order
Healing properties
Physical appearance

Correct Answer Logic:

Taxonomical classification follows the biological hierarchy (Family, Genus, Species).

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3598

Question 9

'Glycyrrhiza glabra' (Liquorice/Mulathi) is widely used in pharmacy as a/an:

Expectorant and Demulcent✔️
Potent poison
Blood thinner
Volatile oil

Correct Answer Logic:

Liquorice is used in cough syrups and for soothing sore throats.

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English QUESTION #2778

Question 10

What does the PHRASAL VERB 'GIVE UP' mean? (Note: A phrasal verb combines a verb with a preposition or adverb to create a new meaning)

To donate something
To surrender or quit✔️
To present something formally
To lift something high

Correct Answer Logic:

'Give up' is a phrasal verb meaning to stop trying to do something or to surrender. The individual words 'give' and 'up' don't convey this meaning separately. Example: 'She gave up smoking last year.'

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Chemistry QUESTION #7502

Question 11

Match the compounds in Item I with their correct detection reagents in Item II:

Item I (Compound)	Item II (Reagent)
(A) Lysine	(P) 1-naphthol
(B) Furfural	(Q) Ninhydrin
(C) Benzyl alcohol	(R) KMnO$_4$
(D) Styrene	(S) Ceric ammonium nitrate

(A)→(Q); (B)→(P); (C)→(S); (D)→(R)✔️
(A)→(Q); (B)→(P); (C)→(R); (D)→(S)
(A)→(R); (B)→(P); (C)→(Q); (D)→(S)
(A)→(Q); (B)→(R); (C)→(S); (D)→(P)

Correct Answer Logic:

Matching logic:

Lysine is an amino acid — detected by ninhydrin (Q), which gives a purple colour with primary amines/amino acids.
Furfural is an aldehyde from furan — detected by 1-naphthol (P) via the Tollens-type or colour reaction specific to furfural.
Benzyl alcohol (PhCH$_2$OH) is a primary alcohol — detected by ceric ammonium nitrate (S), which gives a red colour with alcohols.
Styrene (Ph–CH=CH$_2$) has a C=C bond — oxidized by KMnO$_4$ (R), which gets decolourized.

Correct match: (A)→(Q), (B)→(P), (C)→(S), (D)→(R)

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General Knowledge QUESTION #8946

Question 12

Which city has the world's largest subway system (by annual ridership)?

Tokyo
Shanghai✔️
Mexico City
New York

Correct Answer Logic:

Tokyo Metro has the highest annual ridership.

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Physics QUESTION #7059

Question 13

In an isolated chamber, an ideal gas undergoes adiabatic expansion. The average time between molecular collisions increases as $V^q$, where $V$ is the gas volume. Calculate the value of $q$. (Let $\gamma = C_p/C_v$)

$\frac{3\gamma+5}{6}$
$\frac{3\gamma-5}{6}$
$\frac{\gamma+1}{2}$✔️
$\frac{\gamma-1}{2}$

Correct Answer Logic:

Average collision time $\tau = \frac{\lambda}{v_{rms}}$.

Mean free path $\lambda \propto \frac{1}{n} \propto V$.

Root mean square velocity $v_{rms} \propto \sqrt{T}$.

For an adiabatic process, $T \propto V^{-(\gamma-1)}$. So, $v_{rms} \propto V^{-\frac{\gamma-1}{2}}$.

Therefore, $\tau \propto \frac{V}{V^{-\frac{\gamma-1}{2}}} = V^{1 + \frac{\gamma-1}{2}} = V^{\frac{\gamma+1}{2}}$.

Thus, $q = \frac{\gamma+1}{2}$.

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Security Measures to Maintain Law and Order QUESTION #7668

Question 14

Security cards are useful for controlled access and following apply to them:

All officers/personnel working in controlled environment need to have security cards
Loss of security card is to be immediately reported
Both (A) & (B)✔️
None of these

Correct Answer Logic:

Both statements are correct. Security cards are essential for access control in secure environments - all authorized personnel must have them, and any loss must be immediately reported to prevent unauthorized access and to deactivate the lost card.

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