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Dairy Food Science and Technology QUESTION #5885

Cheddar cheese ripening involves proteolysis primarily by which agents?

Only rennet residual in the curd
Residual chymosin, plasmin, and starter/non-starter bacterial proteases✔️
Whey protein denaturation products
Exogenous lipases added during pressing

Correct Answer Logic:

Cheddar ripening (proteolysis) involves: residual chymosin cleaving $\alpha_{s1}$-casein; plasmin (alkaline milk protease) acting on $\beta$-casein; starter LAB peptidases; and NSLAB. This produces peptides and free amino acids contributing to flavor and texture.

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CISA QUESTION #1778

Question 2

Which of the following conditions is INCORRECT when considering reliance on the work performed by another auditor or specialist?

Ensure the provider operates independently
Accept the work solely based on the provider's job title or position✔️
Confirm agreement on scope and methodology used
Provide adequate supervision and review of the work

Correct Answer Logic:

An auditor must never accept third-party work based solely on the individual's job title or organizational rank. Proper evaluation requires assessing the provider's independence, confirming their qualifications, agreeing on scope and procedures, and actively supervising and reviewing the work before relying on it.

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Electrical Engineering QUESTION #2173

Question 3

A half-wave dipole antenna has $R_{rad} = 73\,\Omega$, $R_{loss} = 7\,\Omega$, and directivity $D = 1.64$. Its radiation efficiency and gain are:

$\eta = 91.25\%$, $G \approx 1.497\,(1.75\,\text{dBi})$✔️
$\eta = 80\%$, $G = 1.31$
$\eta = 100\%$, $G = 1.64$
$\eta = 50\%$, $G = 0.82$

Correct Answer Logic:

$\eta = \frac{73}{73+7} = 0.9125 = 91.25\%$. $G = \eta \cdot D = 0.9125 \times 1.64 \approx 1.497 \approx 1.75\,\text{dBi}$.

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English QUESTION #8373

Question 4

Choose the passive voice of: 'All agreed to what I proposed.'

What I proposed was agreed to by all✔️
What was proposed agreed by all
What has been proposed agreed by all
All of these

Correct Answer Logic:

Correct passive: 'What I proposed was agreed to by all'.

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Business, Public administration and Policy QUESTION #10503

Question 5

The transfer of resources and powers to lower-level authorities that are largely independent of higher levels of government is termed:

Devolution✔️
Decentralization
Co-production
Administrative integration

Correct Answer Logic:

Devolution involves transferring substantive powers, resources, and authority to sub-national units (provinces, local governments) that have their own elected officials and operate with significant autonomy from the centre. It differs from deconcentration (field offices of central government) and decentralization (a broader term). Pakistan's 18th Amendment is a landmark example.

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English Literature QUESTION #10728

Question 6

The collective name given to pre-Shakespearean playwrights like Marlowe, Kyd, Peele, and Greene is:

Romantic playwrights
University Wits✔️
Elizabethan dramatists
Court Playwrights

Correct Answer Logic:

The group of educated Elizabethan dramatists — including Christopher Marlowe, Robert Greene, John Lyly, Thomas Kyd, George Peele, Thomas Lodge, and Thomas Nashe — are collectively known as the University Wits. The name reflects that most were Oxford or Cambridge graduates ('wits' meaning clever men). They transformed English drama in the 1580s–90s, bridging the gap between medieval drama and Shakespeare.

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Education QUESTION #10863

Question 7

The study of great books of the Western tradition is at the core of which educational philosophy?

Perennialism✔️
Essentialism
Progressivism
Reconstructionism

Correct Answer Logic:

Perennialism holds that education should focus on timeless, universal truths found in the great books of human civilization (Homer, Plato, Aristotle, Aquinas, Shakespeare, etc.). Associated with Robert Hutchins and Mortimer Adler (Great Books Program at University of Chicago), perennialists believe these works contain enduring wisdom relevant across all ages. Truth is permanent and education should transmit it, not change with passing trends.

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Physics QUESTION #4389

Question 8

If the distance between two charges is halved and the magnitude of charges are also doubled, then the force between these charges becomes:

Two times
Four times
Eight times
Sixteen times✔️

Correct Answer Logic:

By Coulomb's law: $F = k\dfrac{q_1 q_2}{r^2}$. New force: $F' = k\dfrac{(2q_1)(2q_2)}{(r/2)^2} = k\dfrac{4q_1q_2}{r^2/4} = \dfrac{16kq_1q_2}{r^2} = 16F$. The force becomes $\mathbf{16}$ times.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3641

Question 9

'Belladonna' literally means:

Deadly nightshade
Beautiful lady✔️
Sweet flower
Black root

Correct Answer Logic:

In the past, women used it to dilate their pupils to look more attractive.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2968

Question 10

Which glass type is most suitable for highly acidic or neutral parenteral preparations due to high chemical resistance?

Type I (Borosilicate)✔️
Type II (Treated Soda-lime)
Type III (Regular Soda-lime)
Type IV (General purpose)

Correct Answer Logic:

Type I glass (Borosilicate) has the highest chemical resistance and lowest thermal expansion.

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Security Measures to Maintain Law and Order QUESTION #844

Question 11

"Access Control" at an airport is a security measure primarily intended to:

Count passengers
Maintain Law & Order✔️
Speed up boarding
Reduce staff costs

Correct Answer Logic:

Access control ensures only authorized personnel enter sensitive areas, preventing breaches of order.

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Psychology QUESTION #9918

Question 12

Norms are influenced by:

The surrounding culture
The surrounding sub-culture
The context of the situation
All of the above✔️

Correct Answer Logic:

Social norms are shaped by all three levels: the broader cultural framework, subcultural influences (group-specific norms), and the immediate situational context (norms vary across settings). All three operate simultaneously.

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Electronics Engineering QUESTION #11713

Question 13

The skin depth $\delta$ in copper at $1\,\text{GHz}$, given conductivity $\sigma = 5.8 \times 10^7\,\text{S/m}$ and $\mu_0 = 4\pi \times 10^{-7}\,\text{H/m}$, is approximately:

$66\,\mu\text{m}$
$2.1\,\mu\text{m}$✔️
$0.066\,\mu\text{m}$
$210\,\text{nm}$

Correct Answer Logic:

$\delta = \sqrt{\dfrac{2}{\omega\mu\sigma}} = \sqrt{\dfrac{2}{2\pi \times 10^9 \times 4\pi\times10^{-7} \times 5.8\times10^7}} \approx \sqrt{\dfrac{2}{4.58\times10^{11}}} \approx \sqrt{4.37\times10^{-12}} \approx \mathbf{2.09\,\mu\text{m}}$. At GHz frequencies, current is confined to a very thin surface layer, making plating quality and surface finish critical for RF conductor loss.

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Maths QUESTION #7654

Question 14

A person has Rs 2, Rs 5, and Rs 10 coins amounting to Rs 472. The ratio of the number of Rs 2 coins to Rs 5 coins to Rs 10 coins is 2:3:4. Find the number of Rs 2 coins.

$20$
$13$
$8$
None of these✔️

Correct Answer Logic:

Let the number of Rs 2, Rs 5, and Rs 10 coins be $2x$, $3x$, and $4x$. Total amount: $2(2x) + 5(3x) + 10(4x) = 472$. Simplifying: $4x + 15x + 40x = 472$, so $59x = 472$, giving $x = 8$. Number of Rs 2 coins = $2x = 2(8) = 16$. Since 16 is not in the options, the answer is 'None of these'.

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Biology Zoology Botany QUESTION #10836

Question 15

Which step is the first in many DNA-based technologies such as PCR and Southern blotting?

Isolation
Denaturation✔️
Annealing
Elongation

Correct Answer Logic:

Denaturation is the first step in many DNA-based techniques. In PCR, the denaturation step (~94–95°C) separates the double-stranded DNA into single strands by breaking hydrogen bonds between base pairs. This makes the single-stranded template available for primer annealing. In Southern blotting, DNA is denatured before transfer. In DNA hybridisation experiments, denaturation allows probe binding. The order in PCR is: Denaturation → Annealing → Extension.

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Chemistry QUESTION #7146

Question 16

A commercial ion-exchange resin used for water softening has the molecular formula $C_{8}H_{7}SO_{3}Na$ (Molar Mass $= 206$). Determine the maximum uptake of $Ca^{2+}$ ions by this resin in moles per gram of resin.

$\frac{1}{103}$
$\frac{1}{206}$
$\frac{2}{309}$
$\frac{1}{412}$✔️

Correct Answer Logic:

The ion exchange reaction is: $2RNa + Ca^{2+} \rightarrow R_{2}Ca + 2Na^{+}$.

$2$ moles of resin ($2 \times 206\text{ g}$) react with $1$ mole of $Ca^{2+}$.
Total mass of resin = $412\text{ g}$.
Uptake per gram = $\frac{1\text{ mole } Ca^{2+}}{412\text{ g resin}}$.

Thus, the maximum uptake is $\frac{1}{412}\text{ mol/g}$.

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General Knowledge QUESTION #8631

Question 17

What was the duration of Hazrat Ali's (RA) caliphate?

3 years
4 years
5 years
None of above✔️

Correct Answer Logic:

Hazrat Ali's caliphate lasted approximately 5 years (656-661 CE).

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Biology QUESTION #7248

Question 18

Which one of the following is a slime mould?

Anabaena
Rhizopus
Physarum✔️
Thiobacillus

Correct Answer Logic:

Physarum is a classic example of a slime mould (Myxomycetes/Mycetozoa). Anabaena is a cyanobacterium, Rhizopus is a zygomycete fungus, and Thiobacillus is a chemolithotropic bacterium. Slime moulds are placed in kingdom Protista.

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Molecular Biology / Bioinformatics / Biochemistry QUESTION #11060

Question 19

Smooth muscles, cardiac muscles, and glands are regulated by the:

Central nervous system
Parasympathetic nervous system
Sympathetic nervous system
Autonomic nervous system✔️

Correct Answer Logic:

The Autonomic Nervous System (ANS) regulates involuntary functions of smooth muscle (e.g. in blood vessels, gut), cardiac muscle (heart rate), and glands (secretion). The ANS has two divisions: sympathetic (fight-or-flight: increases heart rate, dilates pupils, inhibits digestion) and parasympathetic (rest-and-digest: decreases heart rate, stimulates digestion). Both divisions of the ANS collectively control these involuntary effectors.

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MCQs Section QUESTION #4879

Question 20

Which word is similar to "CALLIGRAPHY"

Computers
Handwriting✔️
Blood pressure
Brain waves

Correct Answer Logic:

Calligraphy is the art of producing decorative handwriting or lettering with a pen or brush. Handwriting is its closest synonym.

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