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Dairy Food Science and Technology QUESTION #5965
Question 5161
The primary purpose of 'aging' ice cream mix overnight at \(2\text{–}4^{\circ}\text{C}\) before freezing is:
  • To allow lactose crystallization to reach equilibrium
  • To allow complete fat crystallization, protein hydration, and emulsifier-protein interaction, improving whipping properties and texture✔️
  • To allow starter culture to acidify the mix
  • To reduce microbial contamination
Correct Answer Logic:
Aging (maturation) of ice cream mix at \(2\text{–}4^{\circ}\text{C}\) for \(4\text{–}24\) hours serves: (1) fat crystallization (partially crystalline fat globules enable partial coalescence during freezing); (2) protein hydration (improved viscosity and body); (3) emulsifier adsorption to fat globule surface enabling controlled partial coalescence.
Uploaded by: Fani Warraich
Correct Answer Logic:

1. Base cost = 1,000 $\times$ $70 = $70,000.
2. Extra materials = $6,000.
3. Extra labour = 500 $\times$ $15 = $7,500.
4. Extra overheads = $2,000.
Total = $70,000 + $6,000 + $7,500 + $2,000 = $85,500.

Uploaded by: Fani Warraich
Pakistan Affairs QUESTION #605
Question 5163
When was the separate electorate demanded for the first time by the Muslims in British India?
  • During Shimla deputation✔️
  • During Shimla conference
  • During Shimla agreement
  • None of these
Correct Answer Logic:
The demand was formally presented by the Simla Deputation in 1906 .
Uploaded by: Fani Warraich
HR and Management QUESTION #6431
Question 5164

In strategic HRM, matching people and organizations suggests that HR strategies contribute most to firm performance when they:

  • Attract the highest number of applicants
  • Attract and retain employees who best fit the firm's culture and business objectives✔️
  • Minimize recruitment and training costs
  • Focus exclusively on technical skills
Correct Answer Logic:

Research shows HR strategies contribute most to firm performance when used to attract and retain the type of employee who best fits the firm's culture and overall business objectives. For example, fast-growth firms perform better with risk-taking managers, while mature firms need different managerial traits.

Uploaded by: Fani Warraich
Accounting & Finance QUESTION #6221
Question 5165
The 'Expectation Gap' often arises because the public confuses auditing with accounting. Which statement best distinguishes the two?
  • Auditing is done by directors; Accounting is done by Chartered Accountants
  • Accounting is the process of recording data; Auditing is the independent examination of that data✔️
  • Accounting provides an opinion; Auditing provides the facts
  • There is no distinction; they are the same activity
Correct Answer Logic:
Accounting is the systematic recording and reporting of financial info, while auditing is the concern with whether that info reflects a true and fair view.
Uploaded by: Fani Warraich
Constitutional Law QUESTION #5828
Question 5166
A city owns a public park. It allows various groups to hold rallies in the park but denies a permit to a group that wants to hold a rally 'celebrating the history of the Confederacy,' claiming it will cause public unrest. Is the denial constitutional?
  • Yes, because the city has a compelling interest in maintaining public order.
  • Yes, because the Confederacy is associated with unprotected 'hate speech.'
  • No, because the park is a 'public forum' and the denial is based on the content of the speech.✔️
  • No, because the city has not shown that a 'clear and present danger' exists.
Correct Answer Logic:
Parks are 'traditional public forums.' Regulations in these forums must be content-neutral (Time, Place, and Manner). If a regulation is content-based (denying a permit because of the 'topic'), it must survive strict scrutiny, and 'public unrest' or 'offense' is generally not a sufficient compelling interest.
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General Knowledge QUESTION #8679
Question 5167
What does 'somnambulism' mean?
  • Walking in rain
  • Walk in sleep (sleepwalking)✔️
  • Science of rock reading
  • None of above
Correct Answer Logic:
Somnambulism is sleepwalking.
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Civil Engineering QUESTION #6609
Question 5168
Which of the following parameters is used to categorize a steel section as 'compact' for flexure?
  • The ratio of flange width to thickness ($b/t$)✔️
  • The total depth of the beam ($d$)
  • The span-to-depth ratio ($L/d$)
  • The poisson's ratio ($\nu$)
Correct Answer Logic:
Compactness is a measure of a section's ability to develop its full plastic moment without local buckling. It is determined by checking the width-to-thickness ratios ($b/t$ for flanges, $h/t_w$ for webs) against limits $\lambda_p$.
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Math Physics Chemistry Biology QUESTION #7748
Question 5169

Malpighian tubules are excretory structures found in which organism?

  • Earthworm
  • Grasshopper✔️
  • Leech
  • Slug
Correct Answer Logic:

Malpighian tubules are the excretory organs in insects like grasshoppers. Earthworm has nephridia; leech has nephridia; slug (mollusk) has a kidney-like organ.

Uploaded by: Fani Warraich
Correct Answer Logic:
Rule 37A(1)(d) inserted via S.R.O. 442(I)/2020 provides that the initiator of a viable unsolicited proposal is exempt from prequalification and is additionally awarded five percent additional weightage during the combined evaluation of their proposal against competing bidders.
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Correct Answer Logic:
Surah Al-Kawthar has only 3 verses (Ayaat), making it the shortest Surah in the Quran. It is the 108th Surah and was revealed in Makkah. 'Kawthar' means abundance and refers to a river in Paradise given to the Prophet (PBUH). The Surah is a response to those who mocked the Prophet for having no surviving sons, assuring him that it is his enemies who will be cut off from all goodness.
Uploaded by: Fani Warraich
Correct Answer Logic:

For $x\to0^-$: $x<0$, $|x|=-x$, $[x]=-1$.

$\dfrac{x((-1)+(-x))\sin(-1)}{-x} = \dfrac{x(-1-x)(-\sin1)}{-x}$

$= \dfrac{x(1+x)\sin1}{x} = (1+x)\sin1$

As $x\to0^-$: limit $= 1\cdot\sin1$... wait: $= \dfrac{x(-1-x)(-\sin1)}{-x} = \dfrac{(1+x)\sin1 \cdot x}{x}=(1+x)\sin1\to\sin1$? Re-doing: numerator $= x(-1-x)\sin(-1)=x(-1-x)(-\sin1)=x(1+x)\sin1$; denominator $=-x$. So $=\dfrac{x(1+x)\sin1}{-x}=-(1+x)\sin1\to-\sin1$. Answer: $\mathbf{-\sin 1}$.

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Education QUESTION #7604
Question 5173
The selection of a particular curriculum design is influenced by which of the following?
  • Foundations✔️
  • Situational analysis
  • Principles
  • None of these
Correct Answer Logic:
Curriculum foundations (philosophical, psychological, sociological, and historical) provide the underlying basis that influences and guides the selection of a particular design.
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Electrical Engineering QUESTION #2144
Question 5174
What is the primary function of a Buchholz Relay in a transformer?
  • Protection against external short circuits
  • Protection against internal gas-producing faults✔️
  • Regulation of secondary voltage
  • Measurement of core temperature
Correct Answer Logic:
A Buchholz relay is a gas-actuated safety device installed to detect internal faults like insulation breakdown or overheating that produce gas within the oil.
Uploaded by: Fani Warraich
Accounting &amp; Finance QUESTION #9629
Question 5175
Working Capital is defined as:
  • Fixed Assets minus Long-Term Liabilities
  • Current Assets minus Current Liabilities✔️
  • Total Assets minus Total Liabilities
  • Share Capital plus Retained Earnings
Correct Answer Logic:
Working Capital = Current Assets – Current Liabilities. It represents the net short-term liquidity of the business — what is expected to be received within 12 months less what must be paid within 12 months. It is not the same as net assets (which includes all assets and liabilities) or equity (capital structure).
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General Knowledge QUESTION #2618
Question 5176
The Power Supply Unit (PSU) in a computer serves what purpose?
  • It stores excess data when RAM is full
  • It converts electricity from the wall outlet into a format that the computer can use✔️
  • It manages the speed of the CPU clock cycles
  • It connects external devices like keyboards and monitors to the motherboard
Correct Answer Logic:
The power supply converts electricity from our wall outlet (AC power) into a format (DC power at various voltages) that our computer can use. Without it, no component in the computer would receive the power it needs to function.
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Geography QUESTION #6332
Question 5177
In the context of sustainable food systems, 'food miles' refers to:
  • Distance workers travel to agricultural employment
  • Distance food travels from production to consumption✔️
  • Agricultural land distance from urban markets
  • Supply chain efficiency in food distribution
Correct Answer Logic:
Food miles measure the distance food travels from production to consumption, used as a sustainability indicator. Higher food miles generally mean greater CO2 emissions from transportation, though production method variations can complicate this assessment.
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Urdu QUESTION #5292
Question 5178
دامن تر ہونا محاورے کا مفہوم کیا ہے؟
  • آنسو سے بھیگ جانا
  • گنہگار ہونا✔️
  • غم میں شریک ہونا
  • پیاس بجھانا
Correct Answer Logic:
دامن تر ہونا محاورے کا مطلب ہے گنہگار ہونا یعنی اپنی آستین پر گناہ کے داغ ہونا۔
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Dairy Food Science and Technology QUESTION #5989
Question 5179
Sodium hexametaphosphate and trisodium citrate are used as emulsifying salts in processed cheese. Their mechanism involves:
  • Acting as antimicrobial agents preventing mold growth
  • Chelating \(\text{Ca}^{2+}\) from the casein-calcium phosphate complex, solubilizing and dispersing casein proteins to form a stable protein-fat emulsion upon heating ('creaming of casein')✔️
  • Lowering the \(\text{pH}\) to improve acid-gel formation
  • Crosslinking casein proteins through phosphate bridges
Correct Answer Logic:
Emulsifying salts in processed cheese work via \(\text{Ca}^{2+}\) chelation (sequestration). By removing \(\text{Ca}^{2+}\) from casein-calcium-phosphate linkages, they break down the protein matrix, allowing individual casein molecules to hydrate, unfold, and interact with fat at the interface during heating ('creaming of casein').
Uploaded by: Fani Warraich
Boilers Mechanical Engineering QUESTION #4083
Question 5180
'Certification' of a boiler is valid for:
  • Life
  • A period specified in the certificate (usually 1 year, subject to inspection)✔️
  • Until the owner changes
  • Until the boiler gets dirty
Correct Answer Logic:
Periodic re-certification ensures continued safe operation.
Uploaded by: Fani Warraich