Reading Mode - Questions

Chemistry QUESTION #7788

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.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3251

Question 2

The 'Pleural Cavity' is a fluid-filled space that:

Protects the heart
Protects the lungs and reduces friction during breathing✔️
Contains the stomach
Stores air

Correct Answer Logic:

The pleura allow the lungs to slide smoothly against the chest wall.

Uploaded by: Fani Warraich

MCQs Section QUESTION #5248

Question 3

Punctuation کو اردو میں کیا کہتے ہیں؟

رموزِ اوقاف✔️
وائیں
اعراب
ان میں سے کوئی نہیں

Correct Answer Logic:

Punctuation کو اردو میں رموزِ اوقاف کہتے ہیں۔

Uploaded by: Fani Warraich

Psychology QUESTION #9784

Question 4

Character disorders such as obsessive-compulsive behaviour are believed to develop due to disturbed parent-child relationships during the:

Later oedipal phase✔️
Paranoid stage
Libido
None of these

Correct Answer Logic:

In psychoanalytic theory, control-related character disorders are linked to conflicts during the oedipal phase. Disturbed dynamics during this period create repressed, conflicted patterns expressed as character or obsessional disorders.

Uploaded by: Fani Warraich

Accounting Finance and Punjab Sales Tax on Services QUESTION #2567

Question 5

According to section 4(5) of the Act, where a taxable service originates from outside Pakistan but is received or terminates in the Punjab, the liability to pay tax to the Government falls upon:

The foreign service provider
The Federal Board of Revenue
The recipient of such service in Punjab✔️
The Punjab Revenue Authority itself

Correct Answer Logic:

Section 4(5) explicitly states that where a taxable service originates from outside Pakistan but is received or terminates in the Punjab, the RECIPIENT of such service shall be liable to pay the tax to the Government — establishing the reverse charge mechanism for imported services.

Uploaded by: Fani Warraich

English Literature QUESTION #722

Question 6

In Wordsworth's "Tintern Abbey," the "still sad music of humanity" refers to:

A literal song
Human suffering and mortality✔️
Industrial noise
Church bells

Correct Answer Logic:

It reflects the poet's mature understanding of the interconnectedness of human experience and sorrow.

Uploaded by: Fani Warraich

Agronomy QUESTION #2026

Question 7

Irrigation water use efficiency (WUE) is formally defined as:

The ratio of water stored in the root zone to total water applied
The ratio of economic crop yield to the total amount of water consumed by evapotranspiration
$\dfrac{\text{Crop yield (kg/ha)}}{\text{Water applied (mm or m}^3\text{)}}$ expressed as kg per mm or kg per $m^3$✔️
The ratio of water infiltrated to water applied at the field inlet

Correct Answer Logic:

Water use efficiency (WUE) = $\dfrac{\text{Yield (kg/ha)}}{\text{Water applied or consumed (mm)}}$. It measures how efficiently water is converted into economic yield. Maximizing WUE is critical in water-scarce environments and forms the basis of deficit irrigation strategies.

Uploaded by: Fani Warraich

Math Physics Chemistry Biology QUESTION #4313

Question 8

Which of the following is the correct sequence of cellular molecules from highest to lowest amount in the cell?

DNA $>$ rRNA $>$ tRNA $>$ mRNA✔️
rRNA $>$ tRNA $>$ mRNA $>$ DNA
mRNA $>$ tRNA $>$ rRNA $>$ DNA
DNA $>$ mRNA $>$ tRNA $>$ rRNA

Correct Answer Logic:

In a cell: DNA exists as 2 copies (diploid), rRNA is the most abundant RNA (~80%), tRNA is next (~15%), and mRNA is least (~5%). Correct order: DNA $>$ rRNA $>$ tRNA $>$ mRNA.

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #6219

Question 9

In an 'Operational Audit', the auditor focuses on 'Efficiency' and 'Effectiveness'. These criteria are often considered:

Clearly defined by International Financial Reporting Standards (IFRS)
Subjective and difficult to evaluate objectively✔️
Strictly limited to accounting and financial records
Mandated by the Companies Ordinance 1984 for all firms

Correct Answer Logic:

Efficiency and effectiveness are more difficult to evaluate objectively than compliance or financial presentation, making operational auditing more like management consulting.

Uploaded by: Fani Warraich

English QUESTION #7645

Question 10

Choose the most appropriate meaning of the idiom:
On the blink

Out of order✔️
In a second
Temporarily
None of these

Correct Answer Logic:

'On the blink' is an idiom meaning not working properly or malfunctioning. It refers to something (usually a machine or device) that is broken or out of order. For example, 'The TV is on the blink' means the TV is not working.

Uploaded by: Fani Warraich

Statistics QUESTION #2002

Question 11

Using the same company data (800 employees, 160 degree holders, 272 managers, 80 are both), the conditional probability $P(\text{college graduate} \mid \text{manager})$ is:

$\dfrac{80}{160}$
$\dfrac{80}{272}$✔️
$\dfrac{272}{800}$
$\dfrac{160}{272}$

Correct Answer Logic:

$P(\text{grad} \mid \text{manager}) = \dfrac{P(\text{grad} \cap \text{manager})}{P(\text{manager})} = \dfrac{80/800}{272/800} = \dfrac{80}{272} \approx 0.294$. This is the definition of conditional probability.

Uploaded by: Fani Warraich

Disaster Management QUESTION #6529

Question 12

In designing a microinsurance scheme for vulnerable households, what represents the primary barrier to uptake?

Lack of insurance companies
Affordability and awareness of benefits among low-income populations✔️
Complex claim procedures
Regulatory constraints

Correct Answer Logic:

Section 9.3 identifies affordability as a key barrier, proposing government-backed subsidies, partnerships with microfinance institutions, and awareness campaigns. For vulnerable populations, premium costs and understanding of insurance value are primary constraints rather than product availability.

Uploaded by: Fani Warraich

General Knowledge QUESTION #4786

Question 13

Which of the following Nobel Prize categories was established in 1968?

Medicine
Literature
Economics✔️
Physics

Correct Answer Logic:

The Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel was established in 1968, unlike the original Nobel Prizes which were established in 1895.

Uploaded by: Fani Warraich

General Knowledge QUESTION #2634

Question 14

What is a CHARGE CYCLE in relation to a device battery?

The time it takes to charge a battery from 0% to 50%
The number of hours a battery lasts on a single charge
One full charge and discharge of a battery✔️
The maximum voltage a battery can receive during fast charging

Correct Answer Logic:

A charge cycle is defined as one full charge and discharge of a battery. Understanding charge cycles is important because batteries have a limited number of cycles before their capacity degrades. For example, a laptop battery rated for 500 charge cycles will gradually lose capacity after those 500 full charge-discharge cycles.

Uploaded by: Fani Warraich

Law QUESTION #5658

Question 15

Before trial the issues to be adjudicated upon must be clearly identified and articulated. Where an issue is contested it:

has to be adjudicated upon in the light of admissible evidence✔️
has to be deferred till the final determination of the case
has to be clubbed with other relevant issues
has to be dropped

Correct Answer Logic:

A contested issue must be adjudicated upon in the light of admissible evidence. Contested issues are resolved through evidence presented at trial — they are neither deferred nor dropped.

Uploaded by: Fani Warraich

Aptitude QUESTION #11021

Question 16

In a complete graph with $6$ vertices ($K_6$), how many triangles (3-cycles) are present?

$10$
$15$
$20$✔️
$30$

Correct Answer Logic:

The number of triangles in $K_n$ is $\binom{n}{3}$. For $n=6$: $\binom{6}{3} = \frac{6 \times 5 \times 4}{6} = 20$.

Uploaded by: Fani Warraich

Islamic Studies QUESTION #8216

Question 17

The first Wahi (revelation) was revealed on:

17 Ramazan✔️
18 Ramazan
19 Ramazan
20 Ramazan

Correct Answer Logic:

The first revelation of the Quran occurred on 17th Ramadan (though some scholars say it was on the 27th night which is Laylat al-Qadr) in 610 CE when the Prophet (PBUH) was 40 years old. The first five verses of Surah Al-Alaq were revealed in the Cave of Hira by Angel Jibreel (AS): 'Read in the name of your Lord who created...' This marked the beginning of 23 years of revelation and the Prophet's mission to guide humanity.

Uploaded by: Fani Warraich

Math Physics Chemistry Biology QUESTION #7744

Question 18

What is the primary outcome of crossing over during prophase I of meiosis?

DNA duplication without exchange
Homologous chromosomes exchange segments producing recombinant chromatids✔️
Identical parts exchanged no variation
Non-homologous exchange

Correct Answer Logic:

Crossing over exchanges genetic material between non-sister chromatids of homologous chromosomes, producing new allele combinations (recombination) and increasing genetic variation.

Uploaded by: Fani Warraich

Mathematics QUESTION #6028

Question 19

Let $S=\left\{t\in\mathbb{R}: f(x)=|x-\pi|\cdot(e^{|x|}-1)\sin|x|\right.$ is not differentiable at $t\}$. Find $S$.

$\{\pi\}$
$\{0,\pi\}$
$\emptyset$ (empty set)✔️
$\{0\}$

Correct Answer Logic:

Check $x=0$: $f(x)=|x-\pi|(e^{|x|}-1)\sin|x|$. Near $x=0$, both $(e^{|x|}-1)$ and $\sin|x|$ have factors of $|x|$, so $f(x)\approx |x-\pi|\cdot|x|^2$ near 0, which is differentiable at 0.

Check $x=\pi$: near $\pi$, $(e^{|x|}-1)\sin|x|$ is smooth and non-zero ($e^\pi\sin\pi=0$!). Since $\sin\pi=0$, the product $(e^{|x|}-1)\sin|x|$ vanishes at $\pi$, making $f(x)=0$ near $\pi$ — wait, $\sin\pi=0$, so $f(\pi)=0$. Checking differentiability more carefully shows $f$ is differentiable at $\pi$ too.

Therefore $S=\boldsymbol{\emptyset}$.

Uploaded by: Fani Warraich

Physics and Math QUESTION #763

Question 20

If degree of polynomial in numerator is less than denominator then fraction is called?

Proper fraction✔️
Improper fraction
Both
None

Correct Answer Logic:

A rational fraction is proper if the degree of the numerator is strictly less than the degree of the denominator.

Uploaded by: Fani Warraich

More Options

Suggest a Question