Reading Mode - Questions

Reading and Writing (Module-1) QUESTION #5378

While researching a topic, a student has taken the following notes: Earthquakes start at a point called a 'focus' and spread out as seismic waves. Two types of seismic waves that travel beneath the surface are P waves and S waves. P waves compress and expand the ground, while S waves move it side to side. Both types of waves travel beneath the surface and cause the ground to move. The student wants to emphasize a similarity between P waves and S waves. Which choice most effectively uses relevant information from the notes to accomplish this goal?

P waves and S waves both travel beneath Earth’s surface, causing the ground to move.✔️
P waves travel away from an earthquake’s starting point at a higher rate of speed than do S waves.
Spreading out from the focus of an earthquake, P waves move the ground backward and forward.
Although P waves and S waves start at the same point, they behave very differently.

Correct Answer Logic:

Option A highlights what the waves have in common, using the word 'both' to emphasize the similarity.

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Math Physics Chemistry Biology QUESTION #11258

Question 11322

Which blood vessel carries oxygenated blood from the lungs to the heart?

Pulmonary artery
Pulmonary vein✔️
Superior vena cava
Aorta

Correct Answer Logic:

The pulmonary vein is the only vein that carries oxygenated blood. It transports oxygen-rich blood from the lungs to the left atrium of the heart. The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.

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Verbal Reasoning QUESTION #8174

Question 11323

Given that $st = \sqrt{10}$, compare:

Quantity A: $s^2$

Quantity B: $\dfrac{10}{t^2}$

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:

From $st = \sqrt{10}$, squaring both sides: $(st)^2 = 10$, so $s^2 t^2 = 10$.

Therefore $s^2 = \dfrac{10}{t^2}$.

Quantity A $= s^2 = \dfrac{10}{t^2} =$ Quantity B.

The two quantities are equal.

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Mathematics QUESTION #7437

Question 11324

The function $f: \mathbb{R} \to [-\frac{1}{2}, \frac{1}{2}]$ defined as $f(x) = \frac{x}{1+x^2}$, is:

Invertible✔️
injective but not surjective
surjective but not injective
neither injective nor surjective

Correct Answer Logic:

To check injectivity: if $f(x_1) = f(x_2)$, then $\frac{x_1}{1+x_1^2} = \frac{x_2}{1+x_2^2}$, which leads to $x_1(1+x_2^2) = x_2(1+x_1^2)$, simplifying to $x_1 - x_2 + x_1x_2^2 - x_2x_1^2 = 0$, or $(x_1-x_2)(1-x_1x_2) = 0$. For most real values this gives $x_1 = x_2$, confirming injectivity. For surjectivity, $f'(x) = \frac{1-x^2}{(1+x^2)^2}$. Maximum occurs at $x=1$ giving $f(1)=\frac{1}{2}$ and minimum at $x=-1$ giving $f(-1)=-\frac{1}{2}$. The range is exactly $[-\frac{1}{2}, \frac{1}{2}]$, confirming surjectivity. Therefore, f is bijective and hence invertible.

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General Knowledge QUESTION #8950

Question 11325

The only vitamin which cannot be stored in the human body is:

Vitamin C✔️
Vitamin D
Vitamin K
None of these

Correct Answer Logic:

Vitamin C is water-soluble and cannot be stored in large amounts.

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Education QUESTION #6723

Question 11326

In implementing the scientific method in classroom inquiry, students should FIRST:

Collect data
Formulate a hypothesis
Ask a question or identify a problem✔️
Draw conclusions

Correct Answer Logic:

The scientific method begins with observation and questioning. Before hypothesizing or collecting data, students must identify what they're investigating. The sequence: question → hypothesis → testing → results → conclusion ensures systematic inquiry.

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Economics QUESTION #1704

Question 11327

Pakistan's chronically low tax-to-GDP ratio — among the lowest in South Asia — is attributable to which combination of structural and institutional factors?

Disproportionate reliance on regressive indirect taxes
Agricultural sector exemptions and exclusion of large informal income from the tax net
Weak documentation of the tax base and inadequate enforcement capacity
All of these✔️

Correct Answer Logic:

Pakistan's tax-to-GDP ratio (historically around 9–11%) is explained by a confluence of factors: (1) heavy reliance on indirect taxes (sales tax, customs duties) rather than broad-based direct taxes; (2) constitutional and political exemptions for agriculture, despite its large economic size; (3) a large undocumented informal economy estimated at 35–40% of GDP; and (4) weak FBR enforcement, narrow withholding tax net, and rampant tax evasion by powerful sectors.

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CISA QUESTION #6855

Question 11328

During a privacy compliance audit, an auditor discovers that customer consent forms are collected but not stored in an accessible system. When customers request data deletion, the organization cannot verify what consent was originally provided. What is the PRIMARY compliance risk?

Inefficient storage
Inability to demonstrate consent and honor data subject rights per privacy regulations✔️
Poor document management
Increased manual effort

Correct Answer Logic:

Privacy regulations like GDPR require organizations to demonstrate lawful basis for processing (consent) and honor data subject rights (deletion requests). Without accessible consent records, the organization cannot prove processing was lawful and cannot properly respond to deletion requests, creating significant regulatory violation risk.

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Chemistry QUESTION #7151

Question 11329

In which of the following pairs do both phosphorus atoms exhibit a formal oxidation state of $+3$?

Pyrophosphorous and hypophosphoric acids
Orthophosphorous and hypophosphoric acids
Pyrophosphorous and pyrophosphoric acids
Orthophosphorous and pyrophosphorous acids✔️

Correct Answer Logic:

The oxidation states of phosphorus are as follows:

Orthophosphorous acid ($H_{3}PO_{3}$): $+3$
Pyrophosphorous acid ($H_{4}P_{2}O_{5}$): $+3$
Hypophosphoric acid ($H_{4}P_{2}O_{6}$): $+4$
Pyrophosphoric acid ($H_{4}P_{2}O_{7}$): $+5$

Therefore, the pair where both are $+3$ is Orthophosphorous and pyrophosphorous acids.

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Physics QUESTION #7048

Question 11330

In a YDSE, slits are $0.5 \text{ mm}$ apart and the screen is $150 \text{ cm}$ away. Using wavelengths $650 \text{ nm}$ and $520 \text{ nm}$, find the minimum distance from the central maximum where bright fringes from both wavelengths overlap.

$15.6 \text{ mm}$
$1.56 \text{ mm}$
$7.8 \text{ mm}$✔️
$9.75 \text{ mm}$

Correct Answer Logic:

Overlap occurs when $n_1 \lambda_1 = n_2 \lambda_2$.

$n_1(650) = n_2(520) \implies \frac{n_1}{n_2} = \frac{520}{650} = \frac{4}{5}$.

Distance $y = \frac{n_1 \lambda_1 D}{d} = \frac{4 \times 650 \times 10^{-9} \times 1.5}{0.5 \times 10^{-3}} = 7.8 \times 10^{-3} \text{ m} = 7.8 \text{ mm}$.

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Ability / HR / Governance / Special Education QUESTION #1875

Question 11331

Under Rule 21(4), if no order terminating probation is issued after the first year, what happens?

Probation is automatically terminated
The civil servant is deemed confirmed
The period of probation shall be deemed to have been extended✔️
The civil servant is reverted

Correct Answer Logic:

Rule 21(4) states that if no order is issued under sub-rule (3) on expiry of the first year of probation, the period of probation shall be deemed to have been extended under sub-rule (2).

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Journalism / Mass Communication QUESTION #6356

Question 11332

Which of the following BEST explains why movable type, despite being invented in China around 1041 AD, never achieved the same transformational impact there as Gutenberg's press did in Europe?

The Chinese government banned the use of movable type for political reasons
Chinese writing uses thousands of characters, making the benefit of movable type far less practical compared to alphabetic languages, so block printing remained dominant✔️
Gutenberg used superior materials that Chinese craftsmen could not replicate
The Chinese had no paper suitable for printing until the Europeans introduced it

Correct Answer Logic:

Bi Sheng invented movable clay type in China around 1041 AD — nearly four centuries before Gutenberg. However, the Chinese writing system contains thousands of characters (Mandarin has over 50,000, with several thousand in common use), compared to the 26-letter Latin alphabet used in European languages. Setting up movable type for Chinese therefore required an enormous number of individual pieces, making it cumbersome and time-consuming — often slower than traditional block printing for short or medium runs. By contrast, a European printer needed only a small set of metal type for the entire alphabet, making Gutenberg's press extraordinarily efficient for European languages. This alphabetic advantage is a key reason the printing press became a revolutionary mass communication tool in Europe but remained a marginal improvement in China. Interestingly, Gutenberg also used durable oil-based ink and rag paper introduced to Europe via Muslim trade routes, further improving output quality.

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Nursing QUESTION #9131

Question 11333

A neonate born at 36 weeks gestation has respiratory rate of 72/min, subcostal retractions, nasal flaring, and grunting. Chest X-ray shows a 'ground glass appearance' with air bronchograms. The MOST likely diagnosis and PRIMARY pathophysiology is:

Meconium Aspiration Syndrome due to hypoxia-induced meconium passage
Respiratory Distress Syndrome (RDS) due to surfactant deficiency✔️
Transient Tachypnea of Newborn (TTN) due to retained lung fluid
Pneumonia due to Group B Streptococcal infection

Correct Answer Logic:

This is a classic presentation of Neonatal Respiratory Distress Syndrome (RDS), also called Hyaline Membrane Disease:

Prematurity (36 weeks — late preterm)
Grunting, retractions, nasal flaring, tachypnea
Ground glass appearance + air bronchograms on CXR = pathognomonic of RDS

Pathophysiology: Deficiency of surfactant (produced by Type II pneumocytes from ~24 weeks, mature by ~35 weeks). Surfactant reduces alveolar surface tension. Without it:

\[\text{Surface tension} \uparrow \Rightarrow \text{Alveolar collapse} \Rightarrow \text{V/Q mismatch} \Rightarrow \text{Hypoxia}\]

Treatment: Exogenous surfactant (beractant, poractant alfa) via endotracheal tube + respiratory support (CPAP/mechanical ventilation)
Prevention: Antenatal corticosteroids (betamethasone 12 mg IM × 2 doses, 24 hrs apart) if delivery expected before 34 weeks — accelerates fetal lung maturity

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The Elections Act 2017 QUESTION #9453

Question 11334

Under Section 122(3), each voter in a Senate election has how many transferable votes for each category of seats, irrespective of the number of seats to be filled?

Two transferable votes
A number of votes equal to the seats to be filled
Only one transferable vote✔️
Three transferable votes

Correct Answer Logic:

Section 122(3) states: 'Each voter shall have only one transferable vote for each category of seats irrespective of the number of seats to be filled for such category.'

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English QUESTION #8505

Question 11335

The cube was shared _______ Amjad and me.

with
to
between✔️
among

Correct Answer Logic:

'Between' is used for two entities.

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Logical Reasoning QUESTION #3939

Question 11336

Select the pair with a similar relationship: CANVAS : PAINTER

Stage : Actor✔️
Marble : Sculptor
Hammer : Carpenter
Wrench : Mechanic

Correct Answer Logic:

1

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3380

Question 11337

'Saponification' is the chemical process of making soap by reacting fats with:

Acids
Strong bases (like $NaOH$)✔️
Enzymes
Oxygen

Correct Answer Logic:

Hydrolysis of triglycerides with an alkali produces glycerol and salts of fatty acids (soap).

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Chemistry QUESTION #4342

Question 11338

Number of unpaired electrons in Boron ($B$) in ground state is/are:

1✔️
2
3
4

Correct Answer Logic:

Boron has atomic number 5. Its electronic configuration is $1s^2\ 2s^2\ 2p^1$. The single electron in the $2p$ orbital is unpaired, so there is $\mathbf{1}$ unpaired electron.

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