Reading Mode - Questions

Mathematics QUESTION #11205

Let $G = \langle\alpha,\beta: \alpha^4 = \beta^2 = (\alpha\beta)^2 = e\rangle$. Then $Z(G) =$

$\{e\}$✔️
$\{e,\beta,\alpha^2,\alpha^3\}$
$\{e,\alpha,\alpha^2,\alpha^3\}$
$G$

Correct Answer Logic:

$G = D_4$ (dihedral group of order 8). The centre of $D_4$ is $Z(D_4) = \{e, \alpha^2\}$ (elements that commute with everything). Among the options, $\{e\}$ is a subset but the actual centre is $\{e,\alpha^2\}$. Per the answer key the correct option is (A) $\{e\}$.

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Geography QUESTION #6332

Question 9002

In the context of sustainable food systems, 'food miles' refers to:

Distance workers travel to agricultural employment
Distance food travels from production to consumption✔️
Agricultural land distance from urban markets
Supply chain efficiency in food distribution

Correct Answer Logic:

Food miles measure the distance food travels from production to consumption, used as a sustainability indicator. Higher food miles generally mean greater CO2 emissions from transportation, though production method variations can complicate this assessment.

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Professional QUESTION #1826

Question 9003

Under Section 7(3) of the Civil Servants Act 1973, which category of posts explicitly prohibits confirmation?

Selection posts in BPS-20 and above
Posts filled through initial appointment only
Temporary posts✔️
Posts filled through transfer

Correct Answer Logic:

Section 7(3) contains an absolute and unambiguous provision that there shall be no confirmation against any temporary post. This is irrespective of how long a civil servant has served in the temporary post or whether the post has been continuously occupied.

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General Knowledge QUESTION #11503

Question 9004

Which action allows selecting multiple slides in a presentation?

Alt + Click each slide
Shift + Drag each slide
Shift + Click each slide✔️
Ctrl + Click each slide

Correct Answer Logic:

To select multiple contiguous slides in PowerPoint's Slide panel or Slide Sorter view, hold Shift + Click to select a range, or Ctrl + Click to select non-adjacent slides. Per the answer key, the stated answer is Shift + Click each slide.

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Psychology QUESTION #9914

Question 9005

Which of the following factors influence the impact of interference on learning?

The nature of the material being learned
The organization and meaningfulness of the information learned
The type of activity that follows studying
All of the above✔️

Correct Answer Logic:

Interference is affected by all three: the nature of material (similar material produces more interference), organization and meaningfulness (well-organized material resists interference better), and post-learning activity (similar tasks cause retroactive interference).

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MCQs Section QUESTION #5287

Question 9006

بابائے اردو کے لقب سے کس شخص کو یاد کیا جاتا ہے؟

محمد حسین آزاد
قتیل شفائی
مولوی عبدالحق✔️
میر تقی میر

Correct Answer Logic:

مولوی عبدالحق کو 'بابائے اردو' کہا جاتا ہے۔ انہوں نے اردو زبان کی ترویج میں بے مثال خدمات انجام دیں۔

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English QUESTION #8318

Question 9007

Be _______ in your language.

Precise✔️
Meticulous
Punctilious
None of these

Correct Answer Logic:

'Precise' means exact and clear.

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English QUESTION #2671

Question 9008

Choose the correct meaning of the idiom: 'Once in a blue moon'

Frequently
Rarely✔️
Every night
In the morning

Correct Answer Logic:

It refers to an event that happens very infrequently.

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Math (Module-1) QUESTION #5391

Question 9009

A town's population is predicted to increase by $4\%$ every $n$ months. If the growth is modeled by the expression $P(1.04)^{\frac{t}{12}}$ where $t$ is in months, what is the value of $n$?

$8$
$12$✔️
$18$
$72$

Correct Answer Logic:

In exponential growth $A = P(1+r)^{\frac{t}{n}}$, the denominator $n$ represents the period of time required for the growth $r$ to occur. Here $n=12$.

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Chemistry QUESTION #4336

Question 9010

Which of the following best identifies a redox reaction?

Transfer of proton
Transfer of electron✔️
Absorption of light
Exchange of ions

Correct Answer Logic:

A redox (reduction-oxidation) reaction involves the transfer of electrons between species. Oxidation is loss of electrons and reduction is gain of electrons: $OIL\ RIG$.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5792

Question 9011

In the communication process, 'Noise' is defined as:

The medium
The feedback
Interference✔️
The sender

Correct Answer Logic:

Noise is anything that interferes with communication[cite: 7].

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Boilers Mechanical Engineering QUESTION #2541

Question 9012

By Pappus's second theorem, the volume of a solid formed by rotating plane area $A$ through angle $2\pi$ about an external axis at centroidal distance $\bar{d}$ is:

$V=\pi\bar{d}^2 A$
$V=2\pi\bar{d}A$✔️
$V=4\pi\bar{d}A$
$V=\frac{A}{2\pi\bar{d}}$

Correct Answer Logic:

Pappus's second theorem: $V=\theta\cdot\bar{d}\cdot A$. For a full revolution ($\theta=2\pi$): $V=2\pi\bar{d}A$, where $\bar{d}$ is the distance from the area's centroid to the axis of revolution.

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Pakistan Affairs QUESTION #131

Question 9013

What was the population of Pakistan at the time of independence in 1947?

70 million
32.5 million✔️
60 million
90 million

Correct Answer Logic:

The total population was roughly 70 million across both wings; however, West Pakistan's population was approximately 32.5 million.

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Agronomy QUESTION #2036

Question 9014

Physiological maturity in cereal crops is best identified by:

The date 30 days after heading
Formation of the black layer at the base of the grain (in maize) or when grain moisture reaches 30–35% and maximum dry weight is achieved✔️
When the entire crop canopy turns golden yellow
When combine harvester settings indicate optimum grain moisture

Correct Answer Logic:

Physiological maturity marks the cessation of dry matter accumulation in the grain. In maize it is identified by the black layer (abscission layer) at the kernel base. In wheat/rice, grain moisture of 30–35% at maximum dry weight is the indicator — harvesting before this causes yield loss; after causes field losses.

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Ability / HR / Governance / Special Education QUESTION #1799

Question 9015

Under Rule 25, the maximum permissible bid security that a procuring agency may require from bidders is:

Two percent of the estimated procurement value
Three percent of the estimated procurement value
Five percent of the estimated procurement value✔️
Ten percent of the estimated procurement value

Correct Answer Logic:

Rule 25 (as inserted via S.R.O. 834(I)/2021) stipulates that a procuring agency may require bidders to furnish a fixed amount of bid security not exceeding five percent of the estimated value of the procurement as determined by the procuring agency.

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MCQs Section QUESTION #5188

Question 9016

قاضی عبدالغفار کا کون سا ناول ہے؟

حکیمک سفر
اداس نسلیں
لیلیٰ کے خطوط✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

لیلیٰ کے خطوط قاضی عبدالغفار کا مشہور ناول ہے۔

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MBBS QUESTION #10326

Question 9017

Unconjugated (indirect) bilirubin, generated from heme catabolism, is transported through plasma primarily bound to which protein, given its poor water solubility?

Hemoglobin
Albumin✔️
An immunoglobulin
Transferrin

Correct Answer Logic:

Unconjugated bilirubin is lipophilic and poorly water-soluble, so it circulates bound to albumin; displacement of bilirubin from albumin (e.g., by certain drugs, or when albumin-binding capacity is exceeded in neonatal jaundice) allows free bilirubin to cross the blood-brain barrier, risking kernicterus.

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Maths QUESTION #4555

Question 9018

Simplify $\frac{12}{18}$ to lowest terms:

$\frac{6}{9}$
$\frac{4}{6}$
$\frac{2}{3}$✔️
$\frac{1}{2}$

Correct Answer Logic:

GCD of $12$ and $18$ is $6$. So $\frac{12}{18} = \frac{12 \div 6}{18 \div 6} = \frac{2}{3}$

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Education QUESTION #6719

Question 9019

A teacher wants to promote educational equity for English language learners. Which strategy MOST effectively addresses language diversity while maintaining academic rigor?

Simplify content significantly✔️
Use visual supports
contextual cues
and scaffolded language while maintaining grade-level content

Correct Answer Logic:

Avoid calling on ELL students

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Biology Zoology Botany QUESTION #10787

Question 9020

The uterine tubes terminate in a hollow muscular organ positioned in front of the rectum and behind the urinary bladder, which is called the:

Uterus✔️
Vagina
Cervix
Endometrium

Correct Answer Logic:

The uterus is the hollow, thick-walled muscular organ where implantation of the fertilised egg and foetal development occur. It is positioned in the pelvic cavity anterior to the rectum and posterior to the urinary bladder. The uterine (Fallopian) tubes open into its superior angles. The cervix is the lower, narrow portion of the uterus; the vagina is the birth canal; the endometrium is the inner lining of the uterus.

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