Reading Mode - Questions

Boilers Mechanical Engineering QUESTION #4079

Question 10401

'Emergency Shut Down' (ESD) button should be located:

Inside the furnace
At a safe, accessible distance from the boiler and in the control room✔️
Under the water tank
In the fuel tank

Correct Answer Logic:

Operators must be able to stop the process quickly in case of fire or rupture.

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MBBS QUESTION #10307

Question 10402

At its isoelectric point (pI), an amino acid or protein:

Carries a net positive charge and migrates toward the cathode during electrophoresis
Carries a net negative charge and migrates toward the anode during electrophoresis
Carries no net charge overall and does not migrate in an electric field✔️
Is necessarily fully denatured

Correct Answer Logic:

At the isoelectric point, the number of positive and negative charges on the molecule are equal, giving it zero net charge; consequently it does not migrate toward either electrode during electrophoresis — the principle exploited in isoelectric focusing to separate proteins by pI.

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Planning QUESTION #4947

Question 10403

What does 'Urban Sprawl' typically result in?

Compact development
Efficient land use
Increased infrastructure costs✔️
Reduced vehicle dependence

Correct Answer Logic:

Urban Sprawl leads to dispersed, low-density development requiring extensive infrastructure networks (roads, utilities, services), significantly increasing per-capita costs and environmental impacts.

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Accounting & Finance QUESTION #6166

Question 10404

Why is the 'Constant Rupee Approach' used in Financial Statement Analysis?

To calculate the precise tax liability
To adjust for the effects of inflation when comparing balance sheets over time✔️
To ensure the Double Entry Principle is maintained
To convert Market Value to Book Value

Correct Answer Logic:

Lesson 03 explains that this approach compares balance sheets at different times by making inflationary adjustments to account for the limitations of historical cost.

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Dairy Food Science and Technology QUESTION #5941

Question 10405

Lactose intolerance occurs due to deficiency of which enzyme in the small intestine?

Lactase ($\beta$-galactosidase)✔️
Sucrase
Lipase
Amylase

Correct Answer Logic:

Lactose intolerance results from insufficient lactase ($\beta$-galactosidase) in the small intestinal brush border. Undigested lactose reaches the colon and is fermented by colonic bacteria producing short-chain fatty acids, $\text{H}_2$, $\text{CO}_2$, and $\text{CH}_4$, causing bloating, flatulence, cramping, and diarrhea.

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Chemistry QUESTION #7517

Question 10406

A metal oxide has the formula M$_{0.98}$O. The metal M exists as M$^{2+}$ and M$^{3+}$ ions. What fraction of the metal exists as M$^{3+}$?

7.01%
4.08%✔️
6.05%
5.08%

Correct Answer Logic:

Let $x$ = fraction of M as M$^{3+}$, $(0.98 - x)$ = fraction as M$^{2+}$.

Charge balance (O$^{2-}$ contributes $-2$): $2(0.98-x) + 3x = 2$

$1.96 - 2x + 3x = 2$

$x = 0.04$

Fraction of M as M$^{3+}$ $= \dfrac{0.04}{0.98} \times 100 \approx \mathbf{4.08\%}$

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Math Physics Chemistry Biology QUESTION #4205

Question 10407

Which organelle is usually referred as post office of the cell and why?

Golgi apparatus, because it receives, sorts and packages material for transport to other parts of cell✔️
Rough endoplasmic reticulum because it synthesizes protein used by the cell
Mitochondria, because it synthesizes and provides energy to other parts of the cell
Nucleus, because it controls other organelles of the cell

Correct Answer Logic:

Golgi apparatus receives, modifies, sorts and packages proteins for distribution.

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Nursing QUESTION #9203

Question 10408

A researcher reports Type II error ($\beta$ error) in a clinical study. What does this mean for nursing practice?

A false positive result was reported — treatment appears effective when it is not
A true effect was missed — the study concluded no difference when one actually exists✔️
The sample size was too large, inflating statistical power
The p-value was below the significance threshold incorrectly

Correct Answer Logic:

Correct Answer: B

Statistical Errors in Hypothesis Testing:

Error	Also Called	Meaning	Risk
Type I ($\alpha$)	False Positive	Rejecting $H_0$ when it is actually true	Adopting ineffective treatment
Type II ($\beta$)	False Negative	Failing to reject $H_0$ when it is actually false	Missing an effective treatment

Statistical Power $= 1 - \beta$ = probability of correctly detecting a true effect.

In nursing, a Type II error could mean a beneficial intervention is dismissed and patients miss out on better care. Increasing sample size is the main way to reduce $\beta$ and increase power.

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Ability / HR / Governance / Special Education QUESTION #1909

Question 10409

Under Rule 2(1)(xviii) the term 'Secretary' includes which of the following officers when there is no Secretary in charge of a Division?

Deputy Secretary
Section Officer
Additional Secretary Senior Joint Secretary or Joint Secretary in charge of the Division or Ministry✔️
Under Secretary

Correct Answer Logic:

Rule 2(1)(xviii) states that where there is no Secretary the term Secretary means the Additional Secretary Senior Joint Secretary or Joint Secretary in charge of the Division or Ministry.

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Social Studies QUESTION #10064

Question 10410

The process by which the operating principles of fast-food chains are applied globally is known as:

Globalization
McDonaldization✔️
Westernization
None of these

Correct Answer Logic:

McDonaldization refers to the spread of fast-food-style efficiency, predictability, and standardization worldwide.

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Chemistry QUESTION #5534

Question 10411

Sucrose undergoes acid hydrolysis via first-order kinetics with a half-life of 3.33 h at 25°C. After 9 h, the fraction of sucrose remaining is $f$. Find the value of $\log_{10}\!\left(\dfrac{1}{f}\right)\times10^{-2}$ (nearest integer). [Given: $\ln 10 = 2.303$, $\ln 2 = 0.693$]

81✔️
90
135
27

Correct Answer Logic:

$k = \frac{0.693}{3.33} = 0.208\ h^{-1}$. After $t=9$ h: $\ln\left(\frac{1}{f}\right) = kt = 0.208\times9 = 1.872$. $\log_{10}\left(\frac{1}{f}\right) = \frac{1.872}{2.303} = 0.8127$. Answer $= 0.8127\times10^{-2}\times10^{2}\approx81\times10^{-2}$, so the value is $\approx 81\times10^{-2}$, meaning the answer = 81.

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Academic/Professional (Social Sciences) QUESTION #10137

Question 10412

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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English QUESTION #8511

Question 10413

The Government should care _______ the victims of the recent floods.

For✔️
To
Of
With

Correct Answer Logic:

'Care for' means to look after.

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English QUESTION #7635

Question 10414

The bright sun warmed the sandy beach. (Which word is an adjective in this sentence?)

sun
bright✔️
warmed
None of these

Correct Answer Logic:

'Bright' is an adjective that describes the noun 'sun'. Adjectives provide descriptive information about nouns. In this sentence, 'sandy' is also an adjective describing 'beach', but 'bright' is the focus of the question.

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Chemistry QUESTION #7196

Question 10415

In Kjeldahl's method for the estimation of nitrogen, the nitrogen present in the organic compound is quantitatively converted into which of the following substances?

$N_{2}$ gas
$NH_{3}$
$(NH_{4})_{2}SO_{4}$✔️
$NO_{2}$

Correct Answer Logic:

In the first step of Kjeldahl's method, the organic compound is heated with concentrated $H_{2}SO_{4}$.

The nitrogen in the compound is converted into Ammonium Sulfate ($(NH_{4})_{2}SO_{4}$) [cite: 3, 48].
This is later treated with $NaOH$ to release ammonia gas for titration[cite: 29].

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Psychology QUESTION #9846

Question 10416

The social distance scale is mainly a measure of:

Ethnic attitude✔️
Cohesiveness of a group
Upward social mobility
Social class differences

Correct Answer Logic:

The Bogardus Social Distance Scale measures the degree of social closeness people are willing to have with members of various groups. It assesses ethnic/racial attitudes — a classic measure of prejudice.

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Electronics Engineering QUESTION #11703

Question 10417

The Harvard architecture used in many microcontrollers differs from Von Neumann architecture primarily in that:

It uses only 8-bit data buses
Program memory and data memory have separate buses allowing simultaneous fetch and execute✔️
It does not support interrupts
It uses RISC instruction sets exclusively

Correct Answer Logic:

Harvard architecture uses physically separate memory spaces and buses for instructions (program) and data. This allows the CPU to fetch the next instruction while simultaneously reading/writing data memory — a key performance advantage. Von Neumann uses a shared bus, creating the 'Von Neumann bottleneck.' AVR, PIC, and ARM MCUs use modified Harvard architecture.

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The Constitution of Pakistan QUESTION #9369

Question 10418

The Federal Shariat Court under Article 203D cannot examine which categories of law for repugnancy to Injunctions of Islam?

Criminal laws
Fiscal laws and laws relating to levy and collection of taxes, banking or insurance practice and procedure (for ten years), Muslim personal law, and laws of court procedure✔️
Civil laws relating to property
Constitutional provisions only

Correct Answer Logic:

Article 203B(c) defines 'law' for FSC purposes to exclude the Constitution, Muslim personal law, any law relating to court procedure, and — until expiry of ten years from commencement of the Chapter — any fiscal law or law relating to taxes, banking, or insurance. These exclusions carve out significant domains from the FSC's repugnancy jurisdiction.

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English Literature QUESTION #10730

Question 10419

Name the poet who belongs to the Victorian age but is modern in matters of technique:

Swinburne
Rossetti
Hopkins✔️
Hardy

Correct Answer Logic:

Gerard Manley Hopkins (1844–1889) was a Victorian poet who was radically modern in technique. His inventions of 'sprung rhythm' (a metrical system based on stress, not syllable count) and 'inscape'/'instress' (the unique inner form of things) anticipated 20th-century modernism. His poems were not published until 1918 (Robert Bridges's edition), making his influence primarily a modern phenomenon.

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Tourism & Hospitality Management QUESTION #1601

Question 10420

The Cultural Tourism course identifies 'globalization' as both an opportunity and a challenge. In the context of Pakistan's cultural tourism, globalization primarily threatens which aspect?

The financial revenue generated by cultural tourism
The authenticity and continuity of endangered local cultures and traditions✔️
The number of international tourist arrivals
The government's ability to build new museums

Correct Answer Logic:

Module 4 of the Cultural Tourism course lists Globalization under 'Cultural Tourism Issues & Challenges' alongside Terrorism, Poverty, and Preservation — recognizing that globalization can homogenize cultures, erode local traditions, and threaten the authenticity of tangible and intangible cultural heritage that forms Pakistan's cultural tourism base.

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Error	Also Called	Meaning	Risk
Type I (\(\alpha\))	False Positive	Rejecting \(H_0\) when it is actually true	Adopting ineffective treatment
Type II (\(\beta\))	False Negative	Failing to reject \(H_0\) when it is actually false	Missing an effective treatment