Reading Mode - Questions

General Abilities QUESTION #2822

If 15 workers can complete a job in 24 days, how many workers are needed to complete it in 9 days?

30
35
40✔️
45

Correct Answer Logic:

Using inverse proportion: $\text{Workers} \times \text{Days} = \text{constant}$. $15 \times 24 = x \times 9$. $x = \dfrac{15 \times 24}{9} = \dfrac{360}{9} = 40$ workers.

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Chemistry QUESTION #7199

Question 2

Identify the incorrect statement regarding the properties of water ($H_{2}O$).

Water can exhibit both acidic and basic behavior.
Extensive intramolecular hydrogen bonding occurs in the condensed phase.✔️
Ice formed from heavy water ($D_{2}O$) will sink in normal water.
During photosynthesis, water undergoes oxidation to produce oxygen.

Correct Answer Logic:

Statement B is false because water exhibits extensive intermolecular hydrogen bonding, not intramolecular.
Intermolecular bonding occurs between different molecules, which is responsible for water's high boiling point and surface tension.

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Federal Rules of Evidence (US) QUESTION #3791

Question 3

A witness is asked to identify the defendant's handwriting on a threatening note. The witness is a layperson who says, 'I've seen his handwriting once on a Christmas card he sent me five years ago.' Is this enough for authentication?

No, the witness must be an expert in document analysis.
Yes, lay opinion on handwriting is admissible if based on familiarity not acquired for the litigation (Rule 901(b)(2)).✔️
No, because seeing it once five years ago is insufficient to establish familiarity.
Yes, but only if the witness can produce the Christmas card in court.

Correct Answer Logic:

Rule 901(b)(2) allows a non-expert to give an opinion on handwriting based on familiarity that was not acquired for the current litigation. One instance is legally sufficient; the 'weight' of the testimony is for the jury.

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Math (Module-1) QUESTION #5383

Question 4

Consider the expression $6x^2 + 10x$. Which of the following choices represents a completely factored version of this expression?

$2(3x^2 + 5x)$
$2x(3x + 5)$✔️
$x(6x + 10)$
$6x(x + \frac{5}{3})$

Correct Answer Logic:

The greatest common factor is $2x$. Factoring $2x$ out of $6x^2 + 10x$ gives $2x(3x + 5)$.

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Accounting & Finance QUESTION #1212

Question 5

__________ is a systematic examination of the books and records of a business.

Auditing✔️
Vouching
Verification
Checking

Correct Answer Logic:

Auditing is defined as the systematic and independent examination of books of accounts, documents, records, and financial statements of an organization. Its purpose is to enable the auditor to express an opinion on the true and fair view of the financial statements. Vouching and verification are procedures within an audit.

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Chemistry QUESTION #7116

Question 6

A $5.1\text{ g}$ sample of $NH_{4}SH$ is placed in a $3.0\text{ L}$ evacuated flask at $327^{\circ}C$. If $30\%$ of the solid decomposes into $NH_{3}(g)$ and $H_{2}S(g)$, find the $K_p$ for this reaction. ($R = 0.082\text{ L atm mol}^{-1}\text{ K}^{-1}$)

$0.242 \times 10^{-4} \text{ atm}^2$
$1 \times 10^{-4} \text{ atm}^2$
$4.9 \times 10^{-3} \text{ atm}^2$
$0.242 \text{ atm}^2$✔️

Correct Answer Logic:

Molar mass of $NH_4SH = 51\text{ g/mol}$. Initial moles $= 5.1/51 = 0.1\text{ mol}$.
At equilibrium, moles of $NH_3 = H_2S = 0.1 \times 0.3 = 0.03\text{ mol}$.
Using $PV = nRT$: $P_{NH_3} = P_{H_2S} = \frac{0.03 \times 0.082 \times 600}{3} = 0.492\text{ atm}$.
$K_p = P_{NH_3} \times P_{H_2S} = (0.492)^2 \approx 0.242\text{ atm}^2$.

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Physics QUESTION #382

Question 7

The algebraic sum of potential changes in a closed circuit is zero is Kirchhoff's __________ rule.

First
Second✔️
Third
None of these

Correct Answer Logic:

This is Kirchhoff's voltage law (second rule)

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Statistics QUESTION #1977

Question 8

In Bowley's coefficient of skewness defined as $S_k = \dfrac{Q_3 + Q_1 - 2Q_2}{Q_3 - Q_1}$, the value lies in the range:

0 to 1
$-1$ to $+1$✔️
$-3$ to $+3$
$-\infty$ to $+\infty$

Correct Answer Logic:

Bowley's coefficient of skewness is bounded between $-1$ and $+1$ because the numerator $Q_3 + Q_1 - 2Q_2$ can never exceed the denominator $Q_3 - Q_1$ in absolute value, since $Q_2$ always lies between $Q_1$ and $Q_3$.

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General Knowledge QUESTION #8738

Question 9

Who founded the Red Cross organization?

J.H. Durant (Henry Dunant)✔️
Baden Powell
Donald Ross
None of the above

Correct Answer Logic:

Henry Dunant founded the Red Cross.

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Psychology QUESTION #9769

Question 10

The combining of ideas or responses in novel and original ways is referred to as:

Exploration
Creativity✔️
Thinking
None of these

Correct Answer Logic:

Creativity specifically refers to generating novel, original, and useful ideas by combining existing elements in new ways. While thinking is broader and exploration involves searching, creativity uniquely emphasizes novelty and originality of output.

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Chemistry QUESTION #7350

Question 11

If uncertainty in position $\Delta x$ equals uncertainty in momentum $\Delta p$, then the uncertainty in velocity $\Delta v$ is:

$\sqrt{\dfrac{h}{\pi}}$
$\dfrac{1}{2m}\sqrt{\dfrac{h}{\pi}}$✔️
$\sqrt{\dfrac{h}{2\pi}}$
$\dfrac{1}{m}\sqrt{\dfrac{h}{\pi}}$

Correct Answer Logic:

Heisenberg's Uncertainty Principle: $\Delta x \cdot \Delta p \geq \dfrac{h}{4\pi}$

Given $\Delta x = \Delta p$, so $(\Delta p)^2 = \dfrac{h}{4\pi}$

$\Delta p = \sqrt{\dfrac{h}{4\pi}} = \dfrac{1}{2}\sqrt{\dfrac{h}{\pi}}$

Since $\Delta p = m \cdot \Delta v$:
$\Delta v = \dfrac{\Delta p}{m} = \dfrac{1}{2m}\sqrt{\dfrac{h}{\pi}}$

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Chemistry QUESTION #7788

Question 12

What mass of $\mathrm{Al}_2\mathrm{O}_3$ is produced from 18.5 g Al? $4\mathrm{Al} + 3\mathrm{O}_2 \rightarrow 2\mathrm{Al}_2\mathrm{O}_3$

30.8 g
32.6 g
34.9 g✔️
36.5 g

Correct Answer Logic:

Molar mass Al = 27 g/mol: moles Al = 18.5/27 = 0.685 mol. From stoichiometry: 4 mol Al → 2 mol Al₂O₃, so mol Al₂O₃ = 0.685/2 = 0.3425 mol. Molar mass Al₂O₃ = 102 g/mol: mass = 0.3425×102 = 34.94 g ≈ 34.9 g.

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Administration QUESTION #2912

Question 13

Identify the individual traditionally recognized as the "Father of Bureaucracy":

Max Weber✔️
Frederick Taylor
Woodrow Wilson
Herbert Simon

Correct Answer Logic:

Max Weber developed the theory of bureaucracy as a highly structured, formalized, and impersonal system of organization.

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Verbal Reasoning QUESTION #8160

Question 14

A random variable $Y$ follows a normal distribution with mean $200$ and standard deviation $10$. Compare:

Quantity A: The probability that $Y > 220$

Quantity B: $\dfrac{1}{6}$

Quantity A is greater
Quantity B is greater✔️
The two quantities are equal
The relationship cannot be determined from the information given

Correct Answer Logic:

The value $220$ is $\dfrac{220 - 200}{10} = 2$ standard deviations above the mean.

For a standard normal distribution, the probability that $Z > 2$ is approximately $0.0228$ (about $2.28\%$).

Quantity B $= \dfrac{1}{6} \approx 0.1667$.

Since $0.0228 < 0.1667$, Quantity A is less than Quantity B.

Therefore Quantity B is greater.

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Civil Procedure QUESTION #3742

Question 15

A husband is on trial for tax fraud. The prosecution calls his wife to testify about a conversation they had in private while they were married. The husband objects. What privilege applies?

Spousal Immunity.
Confidential Marital Communications.✔️
Attorney-Client Privilege.
None, there is no privilege for fraud.

Correct Answer Logic:

The 'Confidential Marital Communications' privilege protects private communications between spouses made during the marriage. Either spouse can invoke it to prevent the other from testifying about the communication.

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Economics QUESTION #1695

Question 16

The empirical inverse relationship between the inflation rate and the unemployment rate — suggesting a short-run trade-off between the two — is represented by which of the following economic concepts?

Okun's Law
The Phillips Curve✔️
Say's Law
The U-shaped average cost curve

Correct Answer Logic:

The Phillips Curve (A.W. Phillips, 1958) depicts the empirical inverse relationship between unemployment and inflation: when unemployment is low, inflation tends to be high, and vice versa. It represents the short-run trade-off policymakers face. Okun's Law relates unemployment to GDP growth. Say's Law states supply creates its own demand. The short-run Phillips Curve has been challenged by stagflation and the natural rate hypothesis.

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Law QUESTION #9503

Question 17

A obtains a decree against B. B satisfies the decree in full by paying the decretal amount to A. A does not inform the Court and subsequently applies for fresh execution. B seeks to raise the plea of satisfaction. A argues B should have deposited the amount in Court. What is the correct position?

B can raise the plea of full satisfaction of the decree in the execution proceedings under Section 47 CPC; the executing Court must investigate and, if satisfied, refuse execution✔️
A is correct; only Court-deposited payments constitute valid satisfaction
B's plea cannot be raised in execution; payment must always be made in Court
B must file a separate suit to prove payment

Correct Answer Logic:

Section 47 CPC vests jurisdiction in the executing Court to determine all questions of execution, discharge, or satisfaction. Payment made directly to the decree-holder and accepted by him constitutes valid satisfaction. B can raise this in execution proceedings and the Court must adjudicate it.

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