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Pasta filata curd must be heated to $55\text{–}65^{\circ}\text{C}$ (in hot water $\approx 75\text{–}80^{\circ}\text{C}$ or hot whey). At this temperature casein fibers become thermoplastic and align upon stretching, creating the characteristic fibrous elastic structure.

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Political Science QUESTION #6691

Question 344

The US Senate consists of how many members?

50
100✔️
435
None of these

Correct Answer Logic:

The Senate has 100 members—two from each of the 50 states.

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Ability / HR / Governance / Special Education QUESTION #1869

Question 345

If no suitable domicile-holder is found after advertising a vacancy twice, how can it be filled under Rule 14 proviso?

Permanently on open merit
On open merit on contract initially for one year✔️
Left vacant indefinitely
Filled by deputation

Correct Answer Logic:

Rule 14 proviso states the appointing authority may fill the vacancy on open merit on contract, initially for a period of one year.

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Sociology QUESTION #1665

Question 346

Herbert Spencer adapted Darwinian evolutionary principles to the analysis of human societies, arguing that social progress results from competitive selection among individuals and groups. This perspective is most accurately identified as:

Survival of the fittest applied to social evolution and competition✔️
Class struggle as the engine of historical transformation
The development of social solidarity through collective consciousness
The progressive rationalization of social institutions

Correct Answer Logic:

Herbert Spencer's Social Darwinism applied the principle of 'survival of the fittest' (a phrase Spencer himself coined) to human society, arguing that social inequality and competition are natural and that social progress results from the elimination of the weak and the flourishing of the strong — a perspective later used to justify laissez-faire capitalism and imperialism.

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Civil Engineering QUESTION #6569

Question 347

Given a chord length of $30\,\text{m}$, the relationship between the radius $R$ (in metres) and the degree of curve $D$ (in degrees) is:

R = 1520/D
R = 1720/D
R = 4500/D✔️
R = 5400/D

Correct Answer Logic:

For a chord definition with chord $= 30\,\text{m}$: $R = \frac{1720}{D}$ uses 20 m chord; for a 30 m chord, $R = \frac{4500}{D}$ is the standard relation used in highway curves.

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CISA QUESTION #1752

Question 348

What is the leading technique for reporting compliance with key operational requirements?

Technical recommendations from IT
Identify business issues and governance objectives
COBIT performance framework
Individual compliance elements derived from contracts and regulations✔️

Correct Answer Logic:

Using a compliance matrix built from signed contracts, advertised SLA statements, and specific regulatory points defines the most critical service elements needed to support business operations. Absence of this document typically signals a major governance control failure.

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Chemistry QUESTION #1447

Question 349

Which compound will give a positive silver mirror test with Tollens' reagent?

Propanone
Ethanal✔️
Benzophenone
None of these

Correct Answer Logic:

Tollens' reagent ($[\text{Ag(NH}_3)_2]^+$) is a mild oxidising agent that distinguishes aldehydes from ketones. Aldehydes are oxidised to carboxylates and silver is reduced to metallic silver (the silver mirror). Ethanal ($CH_3CHO$) is an aldehyde → gives positive result. Propanone and benzophenone are ketones → do not react (ketones cannot be further oxidised under mild conditions).

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Civil Engineering QUESTION #6619

Question 350

The 'Effective Length Factor' ($K$) for a column that is perfectly fixed at the base and perfectly pinned at the top (theoretical value) is:

0.5
0.7✔️
1
2

Correct Answer Logic:

For a fixed-pinned column, the theoretical $K$ is 0.7. (Recommended design value is often 0.8 to account for imperfect fixity).

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General Knowledge QUESTION #2622

Question 351

Which of the following CORRECTLY describes the difference between HDMI and DVI cables?

HDMI outputs only video while DVI outputs both video and audio
HDMI outputs both video and audio while DVI generally outputs video only✔️
Both HDMI and DVI output only video without any audio
Both HDMI and DVI output both audio and video identically

Correct Answer Logic:

HDMI (High Definition Multimedia Interface) outputs BOTH video and audio through a single cable. DVI (Digital Visual Interface) cables generally output VIDEO ONLY. This makes HDMI more practical for connecting computers to monitors and TVs with speakers.

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General Knowledge QUESTION #101

Question 352

As part of their sports physical, seven college athletes - F, G, H, I, J, K and L - are being weighed. In announcing the results of the physical exams, the coach has given the following information.

i . None of the athletes is exactly the same weight as another athlete.

ii. K is heavier than L, but lighter than H.

iii. I is heavier than J

iv. Both F and G are heavier than H.

Sub-Questions:

Question 1

Each of the following could be true EXCEPT

F is the heaviest.
G is the heaviest.
More than three athletes are lighter than K✔️
More than three athletes are heavier than K.

Question 2

Which of the following, if true, would be sufficient to determine which athlete is the lightest?

I is the heaviest
J is heavier than K✔️
Exactly five students are lighter than F.
K is heavier than J

Question 3

If J is heavier than F, how many different rankings by weight, of the athletes are possible?

1
2
3✔️
4

Question 4

If H is heavier than I, which of the following CANNOT be true?

I’s weight is equal to the average of F’s weight and G’s weight.✔️
I’s weight is equal to the average of K’s weight and L’s weight
J’s weight is equal to the average of K’s weight and L’s weight
J is the second lightest.

Correct Answer Logic:

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General Abilities QUESTION #4536

Question 353

Simplify: $\sqrt{18}$

$3\sqrt{2}$✔️
$2\sqrt{3}$
$9\sqrt{2}$
$6\sqrt{3}$

Correct Answer Logic:

$\sqrt{18} = \sqrt{9 \times 2} = \sqrt{9} \times \sqrt{2} = 3\sqrt{2}$

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English QUESTION #819

Question 354

Spot the error: 'He (A)borrowed the money (B)so he could (C)finish his (D)education.'

borrowed
so he could✔️
finish his
education

Correct Answer Logic:

The error is at (B). 'so he could' should be 'so that he could'. The conjunction 'so that' is correct for expressing purpose.

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Mathematics QUESTION #1306

Question 355

For the Trapezoidal Rule applied to $\int_1^3\dfrac{1}{x^2}\,dx$ using 5 points, the step size $h$ is:

0.5✔️
0.25
1
0.4

Correct Answer Logic:

With 5 points on $[1,3]$, there are 4 subintervals. Step size $h=\dfrac{3-1}{4}=\dfrac{2}{4}=0.5$. The five points are $x=1.0, 1.5, 2.0, 2.5, 3.0$.

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Pharmacokinetics and Pharmacodynamics QUESTION #3847

Question 356

A solution contains $200$ mg of dopamine in $500$ mL normal saline. What is the concentration of the solution in micrograms per mL?

$0.4\ \mu\text{g/mL}$
$2.5\ \mu\text{g/mL}$
$40\ \mu\text{g/mL}$
$400\ \mu\text{g/mL}$✔️

Correct Answer Logic:

$200\ \text{mg} = 200{,}000\ \mu\text{g}$. Concentration $= \dfrac{200{,}000}{500} = 400\ \mu\text{g/mL}$.

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Reading and Writing (Module-1) QUESTION #5430

Question 357

A French monarch's reign, whether consequential or uneventful, was shaped by legitimacy questions. So it cannot be understood without knowing how the monarch ____ his right to the throne.

reciprocate
annotate
buttress✔️
disengage

Correct Answer Logic:

To support or strengthen his right is "buttress".

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Accounting & Finance QUESTION #6072

Question 358

The owner of a firm used her own personal cash to buy office stationery for the business. Which account should be credited in the ledger?

Capital✔️
Cash
Drawings
Stationery

Correct Answer Logic:

When an owner introduces personal funds or assets into the business, it is treated as additional capital. The stationery account is debited (increase in expense), and the Capital account is credited (increase in owner's equity).

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