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Commerce QUESTION #1231

The trade terms '2/15, net 30' indicate that:

A 2% discount is offered if payment is made within 15 days.✔️
A 15% discount is offered if payment is made within 30 days.
A 2% discount is offered if payment is made within 30 days.
A 30% discount is offered if payment is made within 15 days.

Correct Answer Logic:

The trade credit term '2/15, net 30' is read as: a 2% cash discount is available if the invoice is paid within 15 days; otherwise, the full (net) amount is due within 30 days. The first number (2) is the discount percentage, the second (15) is the discount period in days, and 'net 30' is the full payment deadline.

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Biology QUESTION #4330

Question 2

According to the Lock and Key model, the active site is regarded as:

Rigid and specific✔️
Flexible and specific
Rigid and non-specific
Flexible and non-specific

Correct Answer Logic:

The Lock and Key model (Fischer, 1894) proposes that the enzyme active site has a fixed, rigid shape that is exactly complementary to a specific substrate — rigid and specific.

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Population Health and Ethics QUESTION #3929

Question 3

A 50-year-old male patient asks about colorectal cancer screening. He has no symptoms and no family history of the disease. Which of the following is the recommended screening method for him?

Faecal occult blood test (FOBT) every two years✔️
Colonoscopy every ten years
Flexible sigmoidoscopy every five years
CT colonography every five years

Correct Answer Logic:

No explanation provided for this question.

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Physics QUESTION #384

Question 4

For photons of energy greater than 1.02 MeV the probability of pair production occurrence __________ as the energy increases.

Increase✔️
Completely diminishes
Reduces to half
Remains unchanged

Correct Answer Logic:

Pair production probability increases with photon energy above threshold

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Sociology QUESTION #1670

Question 5

The theoretical concept of 'hegemonic masculinity,' which examines how a dominant form of masculinity is culturally exalted and reproduced within a hierarchy of masculinities to sustain patriarchal social arrangements, was most centrally developed to address which sociological problem?

Explaining how capitalist ideology maintains class hegemony through gender norms
Analyzing how gender inequality is reproduced through the privileging of certain forms of masculinity over others and over femininities
Studying the internal power dynamics and subordination relationships among competing configurations of masculinity✔️
Critiquing the functionalist assumption that gender roles are biologically determined and socially functional

Correct Answer Logic:

Hegemonic masculinity, developed primarily by R.W. Connell (building on Gramsci's concept of hegemony), describes the culturally dominant form of masculinity that legitimizes men's dominance over women and over subordinated masculinities. It is a relational concept focused on the structural reproduction of gender hierarchy through the valorization of particular masculine ideals.

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Boilers Mechanical Engineering QUESTION #4034

Question 6

A 'Manhole' in a boiler is provided for:

Looking at the fire
Entry of a person for internal inspection and cleaning✔️
Filling the fuel
Letting air out

Correct Answer Logic:

Every large boiler must have access points for maintenance.

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Electrical Engineering QUESTION #2158

Question 7

The transfer function of a second-order system is $H(s) = \frac{\omega_n^2}{s^2 + 2\zeta\omega_n s + \omega_n^2}$. For $\zeta = 0.5$ and $\omega_n = 10\,\text{rad/s}$, the percent peak overshoot in a unit step response is:

$16.3\%$✔️
$4.3\%$
$25.4\%$
$9.5\%$

Correct Answer Logic:

$\%PO = e^{-\pi\zeta/\sqrt{1-\zeta^2}} \times 100 = e^{-\pi(0.5)/\sqrt{0.75}} \times 100 = e^{-1.814} \times 100 \approx 16.3\%$.

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Physics and Math QUESTION #760

Question 8

A non-negative rational number is group under:

Addition✔️
Multiplication
Subtraction
Both A and C

Correct Answer Logic:

Non-negative rational numbers form a group under addition as they satisfy closure, associativity, identity (0), and inverse properties.

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Electrical Engineering QUESTION #2137

Question 9

In a balanced three-phase star-connected system, what is the phase relationship between the line voltage $V_L$ and its corresponding phase voltage $V_{ph}$?

$V_L$ leads $V_{ph}$ by $30^\circ$✔️
$V_L$ lags $V_{ph}$ by $30^\circ$
$V_L$ and $V_{ph}$ are in phase
$V_L$ leads $V_{ph}$ by $120^\circ$

Correct Answer Logic:

In a star (Wye) connection, the line voltage is $\sqrt{3}$ times the phase voltage and leads the phase voltage by $30^\circ$.

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Physics and Math QUESTION #746

Question 10

The force F experienced by a conductor of length L carrying current when placed in a uniform magnetic field B is:

F = B/iL
F = IL/B
F = BiL✔️
F = L x B/I

Correct Answer Logic:

The force on a current-carrying conductor in a magnetic field is F = BIL sinθ. For perpendicular field F = BiL.

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Islamic Studies QUESTION #243

Question 11

The aim of the Silk Handkerchief (Reshmi Rumal) Movement was freedom for:

Afghanistan
Subcontinent✔️
Turkey
None of these

Correct Answer Logic:

Led by Deobandi scholars, it aimed to liberate India from British rule with foreign aid.

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Tourism & Hospitality Management QUESTION #1643

Question 12

The Accounting and Finance course covers five categories of financial ratio analysis. Which of the following correctly lists all five ratio categories covered in the curriculum?

Profitability, Liquidity, Efficiency, Leverage, and Growth ratios
Liquidity ratio, Activity ratio, Solvency ratio, Profitability ratio, and Cost Analysis✔️
Revenue ratio, Expense ratio, Profit ratio, Asset ratio, and Equity ratio
Current ratio, Quick ratio, Debt ratio, Return on equity, and Earnings per share

Correct Answer Logic:

Module 5 (Financial Analysis) of the Accounting and Finance course explicitly identifies five analytical frameworks: Liquidity Ratio (short-term solvency), Activity Ratio (asset utilization efficiency), Solvency Ratio (long-term debt capacity), Profitability Ratio (return generation), and Cost Analysis — alongside Vertical, Horizontal, and Ratio Analysis methods.

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MCQs Section QUESTION #4858

Question 13

Choose the correct synonym of "PAROXYSM"

Moral lesson
Sudden outburst✔️
Contradiction
Pallid imitation

Correct Answer Logic:

A paroxysm is a sudden, violent, uncontrollable outburst of emotion or activity, such as a paroxysm of rage or laughter.

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English QUESTION #496

Question 14

He was drenched with the hotness of his fear.

He was drenched with the hotness of his fear.
He was drenched in the hotness of his fear.✔️
He was drenched by the hotness of his fear.
He was drenched off the hotness of his fear.

Correct Answer Logic:

'Drenched in' is correct

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Chemistry QUESTION #1009

Question 15

The molar solubility ($s$) of zirconium phosphate with formula $(\text{Zr}^{4+})_3(\text{PO}_4^{3-})_4$ is given by the relation:

$\left(\dfrac{K_{sp}}{9612}\right)^{1/3}$
$\left(\dfrac{K_{sp}}{6912}\right)^{1/7}$✔️
$\left(\dfrac{K_{sp}}{8435}\right)^{1/7}$
$\left(\dfrac{K_{sp}}{5348}\right)^{1/6}$

Correct Answer Logic:

Dissolution: $\text{Zr}_3(\text{PO}_4)_4 \rightleftharpoons 3\text{Zr}^{4+} + 4\text{PO}_4^{3-}$. If solubility $= s$: $[\text{Zr}^{4+}]=3s$, $[\text{PO}_4^{3-}]=4s$. $K_{sp} = (3s)^3(4s)^4 = 27s^3 \cdot 256s^4 = 6912\,s^7$. So $s = \left(\dfrac{K_{sp}}{6912}\right)^{1/7}$.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3009

Question 16

Which of the following is a 'Flocculating Agent' used in suspensions?

Electrolytes
Surfactants
Polymers
All of these✔️

Correct Answer Logic:

Electrolytes, surfactants, and polymers can all be used to form 'flocs' to improve suspension stability.

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City and Regional Planning QUESTION #4979

Question 17

Which statistical test is most appropriate for determining correlation between household income and housing expenditure?

Chi-square test
T-test
Pearson correlation coefficient✔️
ANOVA

Correct Answer Logic:

Pearson correlation coefficient ($r$) measures linear relationship strength between two continuous variables (income and expenditure). Chi-square is for categorical data, t-test for mean differences, and ANOVA for comparing multiple groups.

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Pakistan Affairs QUESTION #4663

Question 18

How many medals did Pakistan win at the 18th Commonwealth Games in Melbourne 2006?

3
5✔️
7
9

Correct Answer Logic:

Pakistan won 5 medals at the 2006 Commonwealth Games held in Melbourne, Australia.

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Chemistry QUESTION #1440

Question 19

What type of fragmentation occurs in mass spectrometry?

Homolytic cleavage✔️
Heterolytic cleavage
Both (A) and (B)
None of these

Correct Answer Logic:

In mass spectrometry, the primary fragmentation mechanism is homolytic cleavage (homolysis), where a bond breaks such that each fragment retains one electron from the bond, forming radical cations. This is because the ionisation process (electron bombardment in EI-MS) produces radical cations. Heterolytic cleavage (both electrons to one fragment) can also occur in some rearrangements, but homolytic cleavage is the predominant mode.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3488

Question 20

'Ephedrine' is an alkaloid used primarily as a:

Bronchodilator✔️
Painkiller
Antibiotic
Purgative

Correct Answer Logic:

Ephedrine is used to treat asthma and nasal congestion.

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