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Dairy Food Science and Technology QUESTION #5897

In CIP (Cleaning-In-Place) of dairy equipment, the correct sequence of steps is:

Hot water rinse $\rightarrow$ caustic wash $\rightarrow$ acid wash $\rightarrow$ sanitizer $\rightarrow$ final rinse
Pre-rinse (warm water $35\text{–}40^{\circ}\text{C}$) $\rightarrow$ caustic wash (NaOH $1\text{–}2\%$, $70\text{–}80^{\circ}\text{C}$) $\rightarrow$ intermediate rinse $\rightarrow$ acid wash $\rightarrow$ final rinse $\rightarrow$ sanitizer✔️
Acid wash $\rightarrow$ caustic wash $\rightarrow$ pre-rinse $\rightarrow$ sanitizer
Sanitizer $\rightarrow$ caustic wash $\rightarrow$ acid wash $\rightarrow$ water rinse

Correct Answer Logic:

Standard CIP sequence: (1) Pre-rinse with warm water ($35\text{–}40^{\circ}\text{C}$); (2) Alkaline wash (NaOH $1\text{–}2\%$ at $70\text{–}80^{\circ}\text{C}$) to remove proteins and fats; (3) Intermediate water rinse; (4) Acid wash ($\text{HNO}_3$ or $\text{H}_3\text{PO}_4$ $0.5\text{–}1\%$) to remove milkstone; (5) Final water rinse; (6) Sanitizer before use.

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General Science and Ability QUESTION #202

Question 5662

The fastest enzyme is:

Pepsin
DNA polymerase
Carbonic anhydrase✔️
None of these

Correct Answer Logic:

Carbonic anhydrase can process up to a million molecules per second.

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Others section QUESTION #4801

Question 5663

The International Day for the Elimination of Racial Discrimination is observed on which date?

23rd May
21st March✔️
1st March
10th December

Correct Answer Logic:

The International Day for the Elimination of Racial Discrimination is observed on March 21 each year, commemorating the 1960 Sharpeville massacre in South Africa.

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Psychology QUESTION #1468

Question 5664

In the Milgram obedience study, what percentage of participants administered the highest shock (450 volts) despite hearing the learner's protests?

25%
35%
50%
65%✔️

Correct Answer Logic:

In Stanley Milgram's landmark obedience experiments (1961–1963) at Yale University, approximately 65% (two-thirds) of participants administered the maximum 450-volt shock when instructed to do so by an authority figure, despite the apparent distress of the 'learner' (who was actually a confederate receiving no real shocks). This demonstrated the powerful influence of authority on obedient behaviour.

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Architecture QUESTION #2358

Question 5665

The concept of embodied energy in sustainable building materials refers to:

The energy stored in a building's thermal mass that regulates indoor temperature
The total energy consumed in all processes associated with production, transportation, and installation of a building material throughout its life cycle✔️
The energy saved by using renewable energy systems integrated into the building
The operational energy required to maintain HVAC systems in a building

Correct Answer Logic:

Embodied energy is the total energy input (in MJ/kg or GJ/tonne) consumed across all processes to produce, transport, and install a building material — including raw material extraction, manufacturing, and on-site installation. It is distinguished from operational energy (energy used during building occupancy). High embodied energy materials (e.g., aluminium, steel) have significant upfront carbon footprints even in energy-efficient buildings.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3331

Question 5666

'Autoclave' tape is used to:

Kill bacteria
Keep the door closed
Provide a visual indicator that the package has been exposed to steam✔️
Wrap the samples

Correct Answer Logic:

The tape changes color (usually develops dark stripes) when the sterilization temperature is reached.

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Mathematics QUESTION #6015

Question 5667

If the matrix $P = \begin{pmatrix}1 & \alpha & 3\\1 & 3 & 3\\2 & 4 & 4\end{pmatrix}$ is the adjoint of a $3\times3$ matrix $A$ with $|A|=4$, find $\alpha$.

4
11✔️
5

Correct Answer Logic:

We use the property: $|adj(A)| = |A|^{n-1}$ for an $n\times n$ matrix. Here $n=3$, so $|P| = |A|^2 = 16$.

Compute $|P|$ by expanding along row 1 (with unknown $\alpha$):

$|P| = 1(3\cdot4-3\cdot4) - \alpha(1\cdot4-3\cdot2) + 3(1\cdot4-3\cdot2)$

$= 1(0) - \alpha(4-6) + 3(4-6) = 2\alpha - 6$

Setting $2\alpha - 6 = 16 \Rightarrow 2\alpha = 22 \Rightarrow \alpha = \mathbf{11}$

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Islamic Studies QUESTION #651

Question 5668

Al-Qanun fi al-Tibb (The Canon of Medicine) was written by:

Al-Razi
Ibn Sina✔️
Al-Biruni
None of these

Correct Answer Logic:

Ibn Sina (Avicenna) wrote this encyclopedia which remained a medical standard for centuries.

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Therapeutics and Patient Care QUESTION #3891

Question 5669

On which days of the menstrual cycle should clomifene be taken to stimulate ovulation induction?

Days 0–5 of the menstrual cycle
Days 5–9 of the menstrual cycle✔️
Days 10–14 of the menstrual cycle
Days 20–24 of the menstrual cycle

Correct Answer Logic:

Clomifene citrate is typically prescribed from day 2–6 or day 5–9 of the menstrual cycle to induce follicular development and ovulation.

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General Ability and Fire Fighting QUESTION #5611

Question 5670

CO2 extinguishers are effective on Class B fires primarily because they:

Cool the fuel below ignition temperature
React chemically with flammable liquids
Displace oxygen to smother the fire✔️
Absorb the fuel

Correct Answer Logic:

CO2 displaces the oxygen around the fire

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Tourism & Hospitality Management QUESTION #1636

Question 5671

The Heritage Management course covers 'information technology in heritage management.' Which specific technologies are identified as applicable to documentation, conservation, and management of cultural heritage?

Social media platforms and mobile apps for tourist engagement
Database Management Systems (DBMS) and Geographic Information Systems (GIS) for documentation, spatial analysis, and conservation management of heritage sites✔️
Point of sale (POS) systems for heritage site gift shops
Video conferencing tools for museum staff meetings

Correct Answer Logic:

Module 9 of the Heritage Management course — Information Technology in Heritage Management — specifically identifies Database Management Systems (DBMS) and Geographic Information Systems (GIS) as the key technologies for heritage documentation, spatial mapping, conservation planning, and management. GIS in particular enables spatial analysis of heritage site condition, visitor patterns, and environmental threats.

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Commerce QUESTION #6076

Question 5672

Iga suspects that some credit notes received from suppliers have not been recorded. Which of the following actions should she take to verify this?

Compare purchases ledger balances against supplier statements
Extract a trial balance of individual purchases ledger accounts
Prepare a purchases ledger control account

1 and 2
1 only✔️
2 and 3 only
3 only

Correct Answer Logic:

Comparing the business's records with the supplier's statement is the most effective way to find missing credit notes, as the supplier will have recorded the credit note even if the business forgot to. A trial balance or control account only checks internal consistency.

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Urdu QUESTION #5201

Question 5673

'خامہ بگوش' کس ادیب کا قلمی نام ہے؟

مظفر علی سید
مشفق خواجہ✔️
جمیل جالبی
حیدر علی آتش

Correct Answer Logic:

خامہ بگوش مشفق خواجہ کا قلمی نام ہے جس سے وہ کالم لکھتے تھے۔

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Civil Procedure QUESTION #5680

Question 5674

A plaintiff sues for $100,000. The jury returns a general verdict for the plaintiff for $50,000, but in response to a special interrogatory, the jury finds the defendant was not negligent. How may the court proceed under Rule 49(b)(3)?

The court must enter judgment on the $50,000 verdict.
The court may enter judgment according to the answers (for the defendant), direct the jury to further consider, or order a new trial.✔️
The court must order a new trial.
The court must enter judgment for the plaintiff but reduce the award further.

Correct Answer Logic:

Under Rule 49(b)(3), if the answers are consistent with each other but one or more is inconsistent with the general verdict, the court may enter judgment according to the answers, notwithstanding the general verdict, or take other specified actions.

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City and Regional Planning QUESTION #5007

Question 5675

Which zoning technique allows density bonuses in exchange for public amenities?

Euclidean zoning
Performance zoning
Incentive zoning✔️
Floating zones

Correct Answer Logic:

Incentive zoning offers developers increased density, height, or FAR in exchange for providing public benefits (parks, affordable housing, transit improvements), balancing private development rights with public amenity provision—widely used in major cities like New York.

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Commerce QUESTION #6048

Question 5676

Nishat Textiles has the following data for the current year:
Current ratio $= 2:1$; Average age of inventory $= 60$ days; Average collection period $= 30$ days; Average payable period $= 40$ days.
Calculate the Cash Conversion Cycle (CCC).

50 days✔️
90 days
78 days
42 days

Correct Answer Logic:

The Cash Conversion Cycle formula is:

$\text{CCC} = \text{Days Inventory Outstanding} + \text{Days Sales Outstanding} - \text{Days Payable Outstanding}$

$= 60 + 30 - 40 = \mathbf{50 \text{ days}}$

The CCC measures how long it takes a firm to convert its investments in inventory and other resources into cash flows from sales. A shorter CCC generally indicates better liquidity management.

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Agronomy QUESTION #2066

Question 5677

The response of crops to micronutrient application follows which relationship, making diagnosis and management more complex than macronutrients?

A linear response with no upper toxicity threshold
A Mitscherlich-type diminishing returns curve identical to macronutrients
A 'Piper-Steenbjerg effect' or Gaussian curve — deficiency at low concentrations, optimum growth at adequate supply, and toxicity (reduced growth) at high concentrations — with a very narrow sufficiency range✔️
A step function where deficiency disappears immediately at the critical concentration

Correct Answer Logic:

Micronutrient response follows a bell-shaped or Gaussian curve: deficiency → optimum → toxicity over a narrow concentration range. This is particularly pronounced for B, Mn, Cu, and Mo. The narrow window between deficiency and toxicity makes micronutrient management far more precise and challenging than macronutrient management.

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MCQs Section QUESTION #4889

Question 5678

Which word is opposite to "LIBERTY"

Permission
Licence
Serfdom✔️
Bound

Correct Answer Logic:

Liberty means the state of being free. Its antonym is Serfdom, meaning the state of complete bondage and lack of freedom.

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Dairy Food Science and Technology QUESTION #5927

Question 5679

The minimum required protein content of yoghurt in most standards is typically achieved by:

Adding sodium caseinate
Fortifying with skim milk powder (SMP) or whey protein concentrate (WPC) to increase total MSNF✔️
Increasing fermentation time
Reducing the fat content

Correct Answer Logic:

To ensure proper gel formation and meet protein standards ($\geq 2.7\text{–}3.2\%$ protein), milk is often standardized by adding SMP or WPC to increase total MSNF. This also improves texture, body, and reduces syneresis.

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Electrical Engineering QUESTION #2139

Question 5680

A $4$-pole induction motor is supplied by a $50\text{ Hz}$ source. If the slip $s$ is $0.04$, what is the actual speed of the rotor $N_r$ in RPM?

$1500\text{ RPM}$
$1440\text{ RPM}$✔️
$1410\text{ RPM}$
$1560\text{ RPM}$

Correct Answer Logic:

Synchronous speed $N_s = \frac{120f}{P} = \frac{120 \times 50}{4} = 1500\text{ RPM}$. Rotor speed $N_r = N_s(1 - s) = 1500(1 - 0.04) = 1440\text{ RPM}$.

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