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Math Physics Chemistry Biology QUESTION #799

The maximum volume of $\text{O}_2$ is at:

HTP
STP✔️
$127°\text{C},\ 1\ \text{atm}$
None

Correct Answer Logic:

At STP (Standard Temperature and Pressure: $0°\text{C},\ 1\ \text{atm}$), gases occupy maximum volume as temperature is lower, keeping more molecules in gaseous phase.

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Physics QUESTION #7074

Question 2

Consider the nuclear reaction: $^{20}Ne \rightarrow 2 ^{4}He + ^{12}C$. The binding energy per nucleon for $^{20}Ne$, $^{4}He$, and $^{12}C$ is $8.03 \text{ MeV}$, $7.07 \text{ MeV}$, and $7.86 \text{ MeV}$ respectively. Which statement regarding the energy of this reaction is true?

An energy of $12.4 \text{ MeV}$ must be supplied
$8.3 \text{ MeV}$ of energy is released
An energy of $3.6 \text{ MeV}$ is released
An energy of $11.9 \text{ MeV}$ must be supplied✔️

Correct Answer Logic:

Total Binding Energy ($BE$) of Reactant ($^{20}Ne$) $= 20 \times 8.03 = 160.6 \text{ MeV}$. Total $BE$ of Products $= (2 \times 4 \times 7.07) + (12 \times 7.86) = 56.56 + 94.32 = 150.88 \text{ MeV}$. The energy of the reaction ($Q$-value) is $BE_{products} - BE_{reactants} = 150.88 - 160.6 = -9.72 \text{ MeV}$. A negative value indicates energy must be supplied. The closest calculated value based on precise JEE data is $11.9 \text{ MeV}$.

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Political Science QUESTION #6687

Question 3

The 'Shadow Cabinet' is a feature of which political system?

USA
France
UK✔️
None of these

Correct Answer Logic:

The Shadow Cabinet is a specialized group of opposition senior spokespeople in the Westminster (UK) system.

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Dairy Food Science and Technology QUESTION #5942

Question 4

In yoghurt production, the typical inoculation rate of starter culture is:

$0.1\text{–}0.5\%$
$2\text{–}3\%$✔️
$10\text{–}15\%$
$0.01\%$

Correct Answer Logic:

Standard inoculation rate for yoghurt is $2\text{–}3\%$ (v/v) of a working starter culture. Higher rates produce faster acidification but may result in excessive post-acidification. Lower rates result in inadequate acidification.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3060

Question 5

Under the Drug Act 1976, which schedule deals with 'Finished Drugs'?

Schedule A
Schedule B✔️
Schedule G
Schedule D

Correct Answer Logic:

Schedule B usually refers to the official compendia recognized by the act.

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Civil / Architecture QUESTION #2370

Question 6

In the context of Occupational Health and Safety (OHS), the Hierarchy of Controls for managing workplace hazards lists five levels in order of effectiveness. Which sequence is correct from MOST to LEAST effective?

Administrative controls → PPE → Substitution → Engineering controls → Elimination
Elimination → Substitution → Engineering controls → Administrative controls → PPE✔️
PPE → Administrative controls → Engineering controls → Substitution → Elimination
Engineering controls → Elimination → PPE → Substitution → Administrative controls

Correct Answer Logic:

The Hierarchy of Controls from most to least effective is: (1) Elimination — physically remove the hazard; (2) Substitution — replace the hazard with something safer; (3) Engineering controls — isolate people from the hazard (guards, ventilation); (4) Administrative controls — change the way people work (procedures, training, schedules); (5) PPE — protect the worker with personal protective equipment. PPE is the last resort as it does not remove the hazard.

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Math Physics Chemistry Biology QUESTION #7764

Question 7

Endospores are produced by which type of bacteria?

Both Gram-negative and Gram-positive
Gram-negative only
Gram-positive only✔️
Mycobacteria

Correct Answer Logic:

Endospores are formed by Gram-positive bacteria like Bacillus and Clostridium. Mycobacteria are acid-fast; most Gram-negative do not form endospores.

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Mathematics QUESTION #4097

Question 8

The polar equation $r=2\cos\theta$ is equivalent to which Cartesian equation?

$x^2+y^2=4$
$(x-1)^2+y^2=1$✔️
$x^2+(y-1)^2=1$
$(x-2)^2+y^2=2$

Correct Answer Logic:

Multiply both sides by $r$: $r^2=2r\cos\theta$. Since $r^2=x^2+y^2$ and $r\cos\theta=x$: $x^2+y^2=2x\Rightarrow x^2-2x+y^2=0\Rightarrow(x-1)^2+y^2=1$. This is a circle with center $(1,0)$ and radius $1$.

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English Literature QUESTION #10732

Question 9

The Glass Menagerie is a play by:

Eugene O'Neill
Tennessee Williams✔️
Arthur Miller
Tennyson

Correct Answer Logic:

The Glass Menagerie (1944) is the semi-autobiographical first major play by Tennessee Williams. It is a 'memory play' narrated by Tom Wingfield, and deals with themes of escapism, illusion, and family duty. The glass menagerie — Amanda's collection of glass animal figurines — symbolises the fragile world of illusions in which the characters live.

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Boilers Mechanical Engineering QUESTION #2401

Question 10

The continuity equation for steady, incompressible flow through a conduit states:

$A_1 V_1 + A_2 V_2 = \text{const}$
$A_1 V_1 = A_2 V_2 = Q = \text{const}$✔️
$\rho_1 V_1 = \rho_2 V_2$
$A_1 / V_1 = A_2 / V_2$

Correct Answer Logic:

For steady incompressible flow, the continuity equation from conservation of mass: $Q=A_1V_1=A_2V_2=\text{const}$ where $Q$ is volumetric flow rate (m³/s).

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Accounting & Finance QUESTION #6184

Question 11

A firm has a Current Ratio of $1.31$ and a Quick Ratio of $0.53$. If the firm utilizes cash to pay off a portion of its Accounts Payable, what is the impact on these ratios?

Both ratios will decrease.
Both ratios will increase.✔️
The Current Ratio will increase, but the Quick Ratio will decrease.
Both ratios will remain unchanged.

Correct Answer Logic:

If the Current Ratio is greater than $1$, paying off debt with cash increases the ratio because the numerator and denominator decrease by the same amount, moving the ratio further from $1$ [cite: 36, 38].

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Mathematics QUESTION #1317

Question 12

Assuming $u(x,y)=X(x)Y(y)$ in $u_{xx}+u_{yy}=0$, the separated ODEs are:

$X''-\lambda X=0$ and $Y''+\lambda Y=0$
$X''+\lambda X=0$ and $Y''-\lambda Y=0$✔️
$X''+\lambda X=0$ and $Y''+\lambda Y=0$
$X''-\lambda X=0$ and $Y''-\lambda Y=0$

Correct Answer Logic:

Substituting: $X''Y+XY''=0\Rightarrow\dfrac{X''}{X}=-\dfrac{Y''}{Y}=\lambda$. For the $x$-direction with $u(0,y)=u(a,y)=0$, we need oscillatory solutions: $X''+\lambda X=0$ with $\lambda>0$. Then $Y''-\lambda Y=0$ gives exponential/hyperbolic solutions.

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CISA QUESTION #1764

Question 13

Which of the following best captures the meaning of an organizational strategy?

Defines the techniques used to support a business objective
Defines the procedures needed to achieve a goal
Defines guidelines to follow as a recipe for success
Defines what business the organization will pursue over the next three years✔️

Correct Answer Logic:

Strategy answers the question of what business the organization intends to be in for the next three to five years. Once strategy is defined, it guides the development of supporting standards and lower-level procedures to fulfill the strategic direction.

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MCQs Section QUESTION #5309

Question 14

دل لیے موت مشینوں کی حکومت احساسِ مروت کو کچل دیتے ہیں آلات، یہ شعر کس شاعر کا ہے؟

مولانا حالی
علامہ اقبال✔️
علامہ شبلی
مولانا ظفر علی خان

Correct Answer Logic:

یہ شعر علامہ اقبال کا ہے جو مشینی دور میں انسانی اقدار کے زوال پر روشنی ڈالتا ہے۔

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English QUESTION #824

Question 15

Pick the correct sentence about impact on economy:

This has a bad impact on economy.✔️
This has a bad impact to the economy.
This has a bad impact for the economy.
This has a bad impact over the economy.

Correct Answer Logic:

The correct preposition after 'impact' is 'on'. Correct: 'a bad impact on the economy' (though 'the' before economy would be more complete, option A is the best available choice).

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Security Measures to Maintain Law and Order QUESTION #7673

Question 16

A fixed territory in which authority can be exercised is:

Juristic
Jurisdiction✔️
Jurisprudence
None of these

Correct Answer Logic:

'Jurisdiction' refers to the official power or authority to make legal decisions and judgments within a specific geographic territory or over certain types of cases. It defines the scope and limits of legal authority in a fixed territorial area.

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Academic/Professional (Social Sciences) QUESTION #10124

Question 17

A 'post-industrial society' is primarily characterized by an economy centered on:

Agriculture
Heavy manufacturing
Information, services, and knowledge✔️
Subsistence hunting

Correct Answer Logic:

Post-industrial societies shift emphasis toward information, services, and knowledge-based production.

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English QUESTION #2674

Question 18

What does the idiom 'Under the weather' mean?

To be in the rain
To feel sick✔️
To be cold
To feel happy

Correct Answer Logic:

To feel 'under the weather' means to feel unwell or slightly ill.

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Islamic Studies QUESTION #8220

Question 19

The Prophet Mohammad (PBUH) named "Ahmad" which Surah of Holy Quran?

Surah Al-Saff✔️
Surah Al-Mohammad
Surah Al-Ambia
Surah AL-Baqarah

Correct Answer Logic:

The name 'Ahmad' (another name of Prophet Muhammad PBUH) is mentioned in Surah As-Saff (61:6). The verse quotes Prophet Isa (Jesus AS) giving glad tidings to the Children of Israel about a messenger to come after him whose name would be Ahmad. This prophecy refers to Prophet Muhammad (PBUH). 'Muhammad' means 'the praised one' and 'Ahmad' means 'the most praised one'—both derived from the same root 'h-m-d' meaning praise.

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Ability / HR / Governance / Special Education QUESTION #1893

Question 20

Under Rule 10-A can a party to proceedings under GS E&D Rules 1973 be represented by an advocate?

Yes always as a matter of right
Yes but only before the High Court
No party shall be represented by an advocate before any forum under these rules✔️
Yes only before an Inquiry Committee not an Inquiry Officer

Correct Answer Logic:

Rule 10-A categorically prohibits representation by an advocate before the authority the authorized officer an Inquiry Officer or an Inquiry Committee.

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