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Social Studies QUESTION #10069

Question 1

The belief that one's own cultural values, customs, and morals are superior to those of others is called:

Ethnocentrism✔️
Ecocentrism
Xenocentrism
None of these

Correct Answer Logic:

Ethnocentrism is the belief in the superiority of one's own culture's values and customs.

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Maths QUESTION #7956

Question 2

A zoo has some lions and some parrots. The keeper counted 15 heads and 50 legs. How many lions were there?

9
10✔️
12
13

Correct Answer Logic:

Let lions $= l$, parrots $= p$.
$l + p = 15$ and $4l + 2p = 50$
From first: $p = 15 - l$
Substituting: $4l + 2(15-l) = 50 \Rightarrow 2l = 20 \Rightarrow l = 10$

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Boilers Mechanical Engineering QUESTION #4072

Question 3

'Purging' the furnace before ignition is done to:

Clean the dust
Remove any unburnt fuel/gases to prevent an explosion (mishap)✔️
Heat the furnace
Cool the burner

Correct Answer Logic:

A high-volume air purge is the first step in any safe burner start-up sequence.

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General Knowledge QUESTION #4785

Question 4

Silk Air is an airline based in which country?

Sri Lanka
Switzerland
Singapore✔️
Thailand

Correct Answer Logic:

Silk Air was a regional airline and a wholly owned subsidiary of Singapore Airlines, headquartered in Singapore. It was merged into Singapore Airlines in 2021.

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Education QUESTION #6875

Question 5

A teacher uses the following strategy: when a student who craves power disrupts class, the teacher assigns that student to write the day's homework on the board and take attendance. Which classroom management model does this most directly reflect?

Lee Canter's Assertive Discipline model
Thomas Gordon's Teacher Effectiveness Training
Rudolf Dreikurs' Logical Consequences model✔️
B.F. Skinner's Behavior Modification framework

Correct Answer Logic:

This is a direct application of Dreikurs' Logical Consequences model, which advises teachers to identify students' 'mistaken goals' (such as the desire for power) and redirect that goal constructively — engaging such students in legitimate leadership roles rather than engaging in power struggles with them.

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Statistics QUESTION #1978

Question 6

Given $n_1 = 2$ samples with replacement from population $\{4, 6, 8\}$ and $n_2 = 2$ from $\{1, 2, 3\}$, the variance of the sampling distribution of $\bar{X}_1 - \bar{X}_2$ equals:

$\dfrac{\sigma_1^2}{n_1} - \dfrac{\sigma_2^2}{n_2}$
$\dfrac{\sigma_1^2}{n_1} + \dfrac{\sigma_2^2}{n_2}$✔️
$\sigma_1^2 + \sigma_2^2$
$\dfrac{\sigma_1^2 + \sigma_2^2}{n_1 + n_2}$

Correct Answer Logic:

For independent samples, $\sigma^2_{\bar{X}_1 - \bar{X}_2} = \dfrac{\sigma_1^2}{n_1} + \dfrac{\sigma_2^2}{n_2}$. For population $\{4,6,8\}$: $\mu_1=6$, $\sigma_1^2 = \frac{8}{3}$. For $\{1,2,3\}$: $\mu_2=2$, $\sigma_2^2=\frac{2}{3}$. So variance $= \frac{8/3}{2}+\frac{2/3}{2} = \frac{4}{3}+\frac{1}{3}=\frac{5}{3}$.

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MCQs Section QUESTION #4864

Question 7

Choose the correct antonym of "TWINE"

Straighten
Continue
Unravel✔️
Detach

Correct Answer Logic:

Twine means to twist or wind together. Its antonym is 'unravel,' meaning to undo a twisted or tangled state and separate the threads.

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General Knowledge QUESTION #8814

Question 8

By which act did the British Parliament pass the partition of India?

12-Jun-47✔️
18-Jul-47
13-Aug-47
15-Aug-47

Correct Answer Logic:

The Indian Independence Act 1947 received royal assent on 18 July 1947. Key says A 12 June? Actually passed 18 July. Key says B 18 July.

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MCQs Section QUESTION #4912

Question 9

A recent New York Times editorial criticized the city's election board for, first of all, failing to replace outmoded voting machines prone to breakdowns, and _____ investigate allegations of corruption involving board members.

secondarily, for their failure to
secondly, for their failure to
secondly, that they failed and did not
second, for failing to✔️

Correct Answer Logic:

Parallel structure requires matching 'for failing…to replace' with 'for failing to investigate.' 'Second' is the preferred GMAT parallel list marker. Options A and B use 'their failure to,' which is not parallel with the gerund 'failing.' Option C uses 'that they failed' which also breaks the parallel.

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Islamic Studies QUESTION #636

Question 10

Who was the first to treat Hindus as "People of the Book" in his time?

Hazrat Usman Ghani
Muhammad bin Qasim✔️
Muhallab bin Abi Safra
None of these

Correct Answer Logic:

Muhammad bin Qasim granted them status similar to Dhimmis upon the conquest of Sindh.

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Pakistan Affairs QUESTION #9080

Question 11

Pakistan won its first Olympic Gold Medal in field hockey in which year?

1955
1960✔️
1965
1970

Correct Answer Logic:

Pakistan won gold in hockey at the 1960 Rome Olympics.

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Statistics QUESTION #1972

Question 12

In hypothesis testing, the probability of committing a Type-I error (rejecting a true null hypothesis) is denoted by:

$\beta$
$\alpha$✔️
$1 - \beta$
$1 - \alpha$

Correct Answer Logic:

Type-I error $(\alpha)$ is the probability of rejecting $H_0$ when it is actually true (false positive). Type-II error $(\beta)$ is the probability of failing to reject $H_0$ when it is false.

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Reading and Writing (Module-1) QUESTION #5409

Question 13

Literary agents estimate that more than half of all nonfiction books credited to a celebrity or other public figure are in fact written by ghostwriters, professional authors who are paid to write other _______ but whose names never appear on book covers. Which choice completes the text so that it conforms to the conventions of Standard English?

people's stories✔️
peoples story's
peoples stories
people's story's

Correct Answer Logic:

'People's stories' uses the correct plural possessive form for multiple stories from multiple people.

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Quantitative Reasoning QUESTION #8015

Question 14

Choose the word that is most nearly opposite in meaning to DIVULGE

keep secret
evaluate by oneself
refine
restore✔️

Correct Answer Logic:

DIVULGE means to reveal or disclose secret information. The direct opposite is to keep secret: if divulging is revealing what was hidden, keeping secret is concealing or not revealing information.

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Journalism / Mass Communication QUESTION #6353

Question 15

Harold Lasswell's (1948) formula of communication consists of five analytical components. Which sequence below correctly maps each component to its corresponding area of research?

Who → Content Research; Says What → Control Research; Channel → Audience Research; To Whom → Medium Research; Effect → Effects Research
Who → Control Research; Says What → Content Research; In What Channel → Medium Research; To Whom → Audience Research; With What Effect → Effects Research✔️
Who → Effects Research; Says What → Medium Research; Channel → Control Research; To Whom → Content Research; Effect → Audience Research
Who → Audience Research; Says What → Effects Research; Channel → Content Research; To Whom → Control Research; Effect → Medium Research

Correct Answer Logic:

Lasswell's formula is one of the most widely cited early models of mass communication. The sociologist Harold Lasswell (1948) proposed analysing mass media by asking five questions, each of which corresponds to a distinct field of scholarly inquiry:

Who? → Control Research (who owns, controls, and regulates media)
Says What? → Content Research (what messages are being sent)
In What Channel? → Medium Research (the technology used to transmit)
To Whom? → Audience Research (who is receiving the message)
With What Effect? → Effects Research (what impact does the message have)

Lasswell was primarily concerned with mass communication and propaganda, so his model is designed to direct researchers toward the kind of systematic inquiry needed to understand and evaluate media power.

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Accounting & Finance QUESTION #1212

Question 16

__________ 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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Academic/Professional (Social Sciences) QUESTION #10137

Question 17

Two societies show identical social cohesion levels, but Society A's cohesion stems from shared kinship and tribal loyalty while Society B's stems from mutual economic dependence. Which pairing best matches Khaldun and Durkheim respectively?

Society A = Durkheim's organic; Society B = Khaldun's Asabiya
Society A = Khaldun's Asabiya; Society B = Durkheim's organic solidarity✔️
Both represent Durkheim's mechanical solidarity
Both represent Khaldun's Asabiya

Correct Answer Logic:

Kinship/tribal loyalty aligns with Khaldun's Asabiya, while economic interdependence aligns with Durkheim's organic solidarity.

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General Knowledge QUESTION #2606

Question 18

Which of the following binary numbers is VALID? (Remember: binary uses only 0s and 1s)

10293
11012
10110✔️
20101

Correct Answer Logic:

The binary (base-2) system uses ONLY digits 0 and 1. '10110' contains only 0s and 1s, making it valid binary. '10293' contains 2, 3, and 9; '11012' contains 2; '20101' contains 2 — all invalid in binary.

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Mathematics QUESTION #6014

Question 19

How many values of $k$ allow the system of equations $(k+1)x + 8y = 4k$ and $kx + (k+3)y = 3k-1$ to have no solution?

Infinite
1✔️
2
3

Correct Answer Logic:

For no solution, the determinant of the coefficient matrix must be zero but the system must be inconsistent.

$\Delta = (k+1)(k+3) - 8k = k^2+4k+3-8k = k^2-4k+3 = (k-1)(k-3) = 0$

So $k=1$ or $k=3$. Check each:

$k=1$: Equations become $2x+8y=4$ and $x+4y=2$ — same line (infinite solutions). Not "no solution".

$k=3$: Equations become $4x+8y=12$ and $3x+6y=8$. Simplify: $x+2y=3$ and $x+2y=8/3$ — contradiction! No solution.

So exactly $\mathbf{1}$ value of $k$ gives no solution.

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Chemistry QUESTION #7809

Question 20

Which aldehyde is most reactive toward nucleophilic addition?

Acetaldehyde
Butyraldehyde
Formaldehyde✔️
Propionaldehyde

Correct Answer Logic:

Formaldehyde (HCHO) has no alkyl group to donate electrons, so the carbonyl carbon is most electrophilic (least steric hindrance, smallest +I effect).

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