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Dairy Food Science and Technology QUESTION #5881

The Clot-on-Boiling (COB) test detects milk that would coagulate during sterilization. What condition causes a positive COB test?

Low fat content
High acidity $(>0.21\%$ lactic acid) or abnormal salt balance (colostrum/mastitic milk)✔️
Antibiotic residues
Excessive water adulteration

Correct Answer Logic:

COB-positive milk forms clots when boiled, indicating either high titratable acidity $(>0.21\%$ lactic acid) or abnormal protein/mineral balance as in colostrum or mastitic milk. Such milk cannot withstand sterilization temperatures.

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Electrical Engineering QUESTION #2162

Question 2582

A 220 kV transmission line has surge impedance $Z_c = 250\,\Omega$. The Surge Impedance Loading (SIL) is:

$193.6\,\text{MW}$✔️
$96.8\,\text{MW}$
$387.2\,\text{MW}$
$484\,\text{MW}$

Correct Answer Logic:

$\text{SIL} = \frac{V_R^2}{Z_c} = \frac{(220 \times 10^3)^2}{250} = \frac{4.84 \times 10^{10}}{250} = 193.6\,\text{MW}$.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3580

Question 2583

Which branch of Pharmacognosy deals with the history, commerce, selection, and preservation of crude drugs?

Ethnobotany
General Pharmacognosy✔️
Phytochemistry
Zoology

Correct Answer Logic:

General Pharmacognosy covers the broader aspects of crude drug management and history.

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Contracts QUESTION #5866

Question 2584

A Seller repudiates a contract three weeks before the delivery date. Can the Buyer sue immediately?

No, the Buyer must wait until the date of performance.
Yes, the Buyer can treat the anticipatory repudiation as an immediate breach.✔️
Yes, but only if the Buyer is a merchant.
No, unless the contract is for more than $10,000.

Correct Answer Logic:

Under UCC §2-610, when either party repudiates the contract with respect to a performance not yet due, the aggrieved party may resort to any remedy for breach.

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Pakistan Affairs QUESTION #151

Question 2585

What was the primary objective of the Home Rule League founded by Annie Besant?

To advocate for complete independence
To establish Home Rule as an auxiliary to the National Congress✔️
To promote social and educational reforms
None of these

Correct Answer Logic:

The League aimed to mobilize Indian opinion for self-government within the British Empire.

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Pakistan Affairs QUESTION #9088

Question 2586

Pakistan is located in which region of Asia?

East Asia
South East Asia
South Asia✔️
North East Asia

Correct Answer Logic:

Pakistan is in South Asia.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3653

Question 2587

Which of the following is a 'Purgative' drug?

Ginger
Senna✔️
Cinnamon
Clove

Correct Answer Logic:

Senna contains anthraquinones that stimulate bowel movement.

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General Knowledge QUESTION #8727

Question 2588

Which city is known as the world's largest computer software industrial center?

Beijing
Bangalore✔️
Bangkok
None above

Correct Answer Logic:

Bangalore (Bengaluru), India is known as 'Silicon Valley of India'.

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Agronomy QUESTION #2092

Question 2589

Drought escape as a mechanism of crop adaptation to water deficit differs from drought tolerance in that:

Drought escape requires genetic modification while tolerance is a natural trait
Drought escape is a phenological strategy — completing the life cycle (particularly the sensitive reproductive stage) before or during periods when water deficit occurs — without requiring the plant to physiologically withstand low tissue water potentials✔️
Drought escape results in higher yield than drought tolerance under all conditions
Drought escape involves waxy leaf surfaces to reduce transpiration

Correct Answer Logic:

Drought adaptation mechanisms: Escape (phenological — early maturity, photoperiod sensitivity completes grain fill before drought); Avoidance (reducing water loss: deep roots, stomatal closure, leaf rolling, reduced leaf area); Tolerance (maintaining function at low tissue water potential: osmotic adjustment, desiccation tolerance). Escape is a timing strategy, not a physiological response to stress.

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Dairy Food Science and Technology QUESTION #5893

Question 2590

The term 'syneresis' in the context of yoghurt and cheese refers to:

Microbial spoilage causing off-flavors
Contraction of the protein gel network expelling whey✔️
Excessive lactose crystallization causing sandiness
Lipid oxidation causing rancidity

Correct Answer Logic:

Syneresis is the spontaneous contraction of the casein gel/curd matrix expelling entrapped whey. In yoghurt, excessive syneresis causes a watery layer. It is influenced by protein concentration, $\text{pH}$ at gelation, heat treatment of milk, and rate of acidification.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3474

Question 2591

The term 'Pharmacognosy' was first coined by Seydler in 1815. It is derived from which Greek words?

'Pharmakon' (drug) and 'gnosis' (knowledge)✔️
'Physis' (nature) and 'logos' (study)
'Pharmakon' and 'logos'
'Gnosis' and 'logos'

Correct Answer Logic:

Pharmacognosy literally means 'knowledge of drugs'.

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Mathematics QUESTION #1323

Question 2592

The radius of curvature $\rho$ of the ellipse $\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1$ at the end of the minor axis $(0,b)$ is:

$\dfrac{b^2}{a}$
$\dfrac{a^2}{b}$✔️
$\dfrac{a}{b}$
$\dfrac{b}{a}$

Correct Answer Logic:

The radius of curvature of an ellipse at $(0,b)$ (end of minor axis): using the formula $\rho=\dfrac{(a^2\sin^2t+b^2\cos^2t)^{3/2}}{ab}$ at $t=\pi/2$: $\rho=\dfrac{(a^2)^{3/2}}{ab}=\dfrac{a^3}{ab}=\dfrac{a^2}{b}$.

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Constitutional Law QUESTION #5820

Question 2593

A state passes a law that prohibits only 'ritualistic animal sacrifice' for religious purposes, while allowing animal slaughter for food or sport. A Santeria church challenges the law. Which standard of review will the court apply?

Rational basis review, because the law is a neutral law of general applicability.
Intermediate scrutiny, because it involves a mix of conduct and speech.
Strict scrutiny, because the law is not neutral and targets a religious practice.✔️
No review, because animal sacrifice is not a 'fundamental' right.

Correct Answer Logic:

Under Church of the Lukumi Babalu Aye v. City of Hialeah, if a law is not neutral or not generally applicable (i.e., it specifically targets religious conduct), it must be justified by a compelling governmental interest and be narrowly tailored (Strict Scrutiny).

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General Knowledge QUESTION #4734

Question 2594

The SAARC summit of 2004 was held in which city?

Islamabad✔️
Kathmandu
Colombo
Dhaka

Correct Answer Logic:

The 12th SAARC Summit was held in Islamabad, Pakistan in January 2004, focusing on regional cooperation and free trade.

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Security Measures to Maintain Law and Order QUESTION #933

Question 2595

What does the term 'Access Control' specifically regulate?

Public transportation
Entry and exit of people and vehicles✔️
Flight departure times
Airport revenue

Correct Answer Logic:

Access control ensures that only authorized individuals can enter specific restricted or sensitive zones.

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General Knowledge QUESTION #9013

Question 2596

Julian Assange is known as the founder of which organization?

An American Media person
A star of English film
Founder of WikiLeaks✔️
A terrorist of Chile

Correct Answer Logic:

Julian Assange founded WikiLeaks.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5791

Question 2597

The 'Adolescence' stage (ages $12$ to $18$) is primarily concerned with:

Trust
Identity✔️
Industry
Intimacy

Correct Answer Logic:

Adolescence is the stage of finding one's identity[cite: 7].

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Quantitative Reasoning QUESTION #8133

Question 2598

Only by ignoring years of mismanagement and inefficiency could investors believe that a new injection of capital would provide anything other than a _______ solution to the company's financial problems.
(Select the best word. Note: two words produce sentences alike in meaning — choose the most accurate.)

fleeting✔️
complete
premature
trivial

Correct Answer Logic:

The sentence implies that without fixing underlying problems, any cash injection would only work temporarily. Fleeting (lasting only a short time) is the best fit — a stopgap, not a real fix. 'Momentary' would also work (these two are the synonym pair in the original). 'Complete' is the opposite of what's implied. 'Premature' means too early, not temporary. 'Trivial' means insignificant, not temporary.

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Physics QUESTION #4416

Question 2599

If the length of a conductor is made 4 times its original length, its resistance becomes:

Quarter
Half
Zero
4 times✔️

Correct Answer Logic:

Resistance $R = \dfrac{\rho L}{A}$. Since $R \propto L$ (at constant cross-sectional area and resistivity), if $L$ becomes $4L$, then $R$ becomes $4R$. The resistance becomes $\mathbf{4}$ times the original.

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General Abilities QUESTION #4561

Question 2600

A number increased by $25\%$ becomes $50$. What was the original number?

$37.5$
$40$✔️
$62.5$
$75$

Correct Answer Logic:

If $x(1 + 0.25) = 50$, then $1.25x = 50$, so $x = \frac{50}{1.25} = 40$

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