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Nursing QUESTION #9152

In epidemiology, the Attack Rate formula is:
Which formula correctly represents the attack rate?

\\frac{\\text{New cases in a period}}{\\text{Population at start of period}} \\times 100
\\frac{\\text{Ill persons among exposed}}{\\text{Total exposed persons}} \\times 100✔️
\\frac{\\text{Total cases}}{\\text{Total population}} \\times 1000
\\frac{\\text{Deaths due to disease}}{\\text{Total cases of disease}} \\times 100

Correct Answer Logic:

The Attack Rate is used during outbreaks/epidemics to measure the proportion of exposed individuals who develop the disease:

\\text{Attack Rate} = \\frac{\\text{Number of ill persons among exposed}}{\\text{Total number of exposed persons}} \\times 100

Option 1 describes Incidence Rate
Option 3 describes Prevalence Rate
Option 4 describes Case Fatality Rate (CFR)

Understanding attack rates is essential during disease outbreak management — a core Head Nurse responsibility in community settings.

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MBBS QUESTION #10313

Question 7862

A nucleoside differs structurally from a nucleotide in that a nucleoside consists of:

A nitrogenous base plus a phosphate group, without any sugar component
A nitrogenous base linked to a pentose sugar, without an attached phosphate group✔️
Only a phosphate group and a sugar, without a nitrogenous base
Multiple nucleotides joined together in a chain

Correct Answer Logic:

A nucleoside is simply a base-sugar combination (e.g., adenosine = adenine + ribose); adding one or more phosphate groups to the sugar's 5' position converts it into a nucleotide (e.g., adenosine monophosphate).

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Law QUESTION #9707

Question 7863

Under Article 164 (as substituted by Act XXXVII of 2023), the Court may allow evidence recorded through modern devices including video conferencing:

Only in civil cases
Depending on the nature of case and circumstances, if the Court deems it appropriate✔️
Only for foreign witnesses
Only with consent of both parties

Correct Answer Logic:

Article 164 states the Court may, depending on the nature of case and circumstances, if deem appropriate, allow evidence recorded through modern devices or techniques including video call, skype, WhatsApp, video conference, etc.

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Ability / HR / Governance / Special Education QUESTION #1845

Question 7864

Under which section of Civil Servants Act 1973 are the Civil Servants (Appointment, Promotion and Transfer) Rules, 1973 framed?

Section 20
Section 23
Section 25✔️
Section 27

Correct Answer Logic:

Rule 1 states these rules are framed in exercise of powers conferred by Section 25 of the Civil Servants Act, 1973 (LXXI of 1973).

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Agronomy QUESTION #2048

Question 7865

Allelopathy in weed science refers to:

The competitive advantage weeds gain through deeper root systems
The release of biochemical compounds (allelochemicals) by one plant into the environment that inhibit or stimulate germination, growth, or development of another plant✔️
The resistance developed by weeds to herbicide application over successive generations
The ability of weeds to fix atmospheric nitrogen, giving them a competitive advantage

Correct Answer Logic:

Allelopathy involves the release of allelochemicals (phenolic acids, terpenoids, alkaloids) from plant roots, residues, or leachates that affect neighboring plants. In weed science, allelopathic crop varieties (e.g., allelopathic rice) suppress weed germination — a key component of cultural weed management.

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Civil Procedure QUESTION #3748

Question 7866

A law that treats people differently based on their 'alienage' (status as a non-citizen) is generally subject to which level of judicial review when passed by a STATE?

Rational Basis.
Intermediate Scrutiny.
Strict Scrutiny.✔️
Clear and Convincing Scrutiny.

Correct Answer Logic:

State laws that discriminate based on alienage are generally subject to strict scrutiny (unless it involves 'self-government' functions like voting or being a police officer). Note: Federal laws on alienage get rational basis.

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English Literature QUESTION #699

Question 7867

Emerson's "Self-Reliance" encourages:

Conformity
Independence of thought✔️
Religious orthodoxy
None of these

Correct Answer Logic:

The essay argues that "Whoso would be a man, must be a nonconformist."

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Math Physics Chemistry Biology QUESTION #11311

Question 7868

Which of the following is a backcross?

AA x aa
Aa x AA
Aa x aa✔️
AA x Aa

Correct Answer Logic:

A backcross involves crossing a heterozygous individual (Aa) with a homozygous recessive individual (aa).

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Civil / Architecture QUESTION #2363

Question 7869

In the analysis of indeterminate structures using the Flexibility (Force) Method, the compatibility equation for a structure with $n$ redundants is expressed in matrix form as:

$[F]\{X\} = \{D_0\}$
$[K]\{D\} = \{P\}$
$[F]\{X\} + \{D_0\} = \{0\}$✔️
$[K]\{X\} = -\{D_0\}$

Correct Answer Logic:

The compatibility equation in the Force Method is $[F]\{X\} + \{D_0\} = \{0\}$ (or equivalently $[F]\{X\} = -\{D_0\}$), where $[F]$ is the flexibility matrix (flexibility coefficients $f_{ij}$ = displacement at $i$ due to unit force at $j$), $\{X\}$ is the vector of redundants, and $\{D_0\}$ is the displacement vector of the released structure (primary structure) under applied loads. Option B is the stiffness method equation.

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Physics QUESTION #7316

Question 7870

A body moves eastward at $30\text{ m/s}$. After 10 s its velocity becomes $40\text{ m/s}$ northward. The magnitude of average acceleration is:

$1\text{ m/s}^2$
$7\text{ m/s}^2$
$\sqrt{7}\text{ m/s}^2$
$5\text{ m/s}^2$✔️

Correct Answer Logic:

Change in velocity: $\Delta\vec{v} = 40\hat{j} - 30\hat{i}$

$|\Delta v| = \sqrt{30^2 + 40^2} = \sqrt{900+1600} = \sqrt{2500} = 50\text{ m/s}$

Average acceleration $= \dfrac{50}{10} = \mathbf{5\text{ m/s}^2}$

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Islamic Studies QUESTION #8215

Question 7871

The appropriation of Zakat on the construction of a mosque is:

Valid expenditure✔️
Invalid expenditure
Permissible for limited purpose
Permissible under the authority of the Head of the State

Correct Answer Logic:

According to Islamic jurisprudence, Zakat can be used for mosque construction under certain conditions, though this is debated among scholars. The eight categories of Zakat recipients mentioned in the Quran (9:60) are: the poor, the needy, Zakat administrators, those whose hearts are to be reconciled, freeing slaves, debtors, in the cause of Allah, and travelers. Some scholars include mosque construction under 'in the cause of Allah' (fi sabilillah), while others restrict Zakat to direct human welfare only.

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Pakistan Affairs QUESTION #4674

Question 7872

The first ever constructed barrage of Pakistan was which one?

Jinnah Barrage
Sukkur Barrage✔️
Taunsa Barrage
Kotri Barrage

Correct Answer Logic:

The Sukkur Barrage, also known as Lloyd Barrage, built across the Indus River in Sindh and completed in 1932, was the first major barrage constructed in Pakistan.

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MCQs Section QUESTION #5198

Question 7873

ضرب المثل مکمل کریں: ضرب المثل مکمل کریں: ایک اور ایک ...

گیارہ✔️
بارہ
بیس
ان میں سے کوئی نہیں

Correct Answer Logic:

درست ضربِ مثل ہے: 'ایک اور ایک گیارہ' یعنی متحد ہونے سے طاقت بڑھ جاتی ہے۔

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Accounting Finance and Punjab Sales Tax on Services QUESTION #2563

Question 7874

According to the Offences and Penalties Schedule, if a registered person fails or refuses to issue a tax invoice and commits THREE acts of such default, the additional consequence is:

Cancellation of registration
Business premises shall be liable to be sealed for a period which may extend to one month✔️
Compulsory audit for three years
Personal liability for all tax due

Correct Answer Logic:

Entry No. 17 provides that in case of three acts of such default (failure to issue tax invoice), in addition to the monetary penalty, the business premises shall be liable to be sealed for a period which may extend to one month.

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Agriculture Economics QUESTION #11864

Question 7875

Economic profit differs from accounting profit because economic profit subtracts:

Only explicit (cash) costs
Both explicit and implicit (opportunity) costs✔️
Only implicit costs
Depreciation only

Correct Answer Logic:

Economic profit is total revenue minus both explicit costs and implicit opportunity costs, unlike accounting profit which ignores opportunity costs.

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Chemistry QUESTION #4368

Question 7876

Poly vinyl chloride (PVC) is the type of:

Homopolymer
Thermosetting polymer
Thermoplastic polymer✔️
Copolymer

Correct Answer Logic:

PVC is formed by addition polymerization of vinyl chloride ($CH_2=CHCl$) monomers. It is a thermoplastic polymer — it softens on heating and re-hardens on cooling, and can be reshaped.

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MCQs Section QUESTION #4859

Question 7877

Choose the correct synonym of "GROTTO"

Statue
Cavern✔️
Neighbourhood
Type of moth

Correct Answer Logic:

A grotto is a small picturesque cave or an artificial ornamental cave. Cavern is its closest synonym, both referring to a cave-like structure.

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Pakistan Affairs QUESTION #9060

Question 7878

The first natural gas reserve in Pakistan was discovered at:

Dhaka (now Bangladesh)
Attock
Sui (Balochistan)✔️
Dera Ghazi Khan

Correct Answer Logic:

Sui gas field was discovered in 1952.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3193

Question 7879

'Peripheral Resistance' to blood flow is primarily determined by the diameter of:

Aorta
Veins
Arterioles✔️
Capillaries

Correct Answer Logic:

Arterioles are known as the 'resistance vessels' because they can significantly constrict or dilate.

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Library Sciences QUESTION #1519

Question 7880

Indexes and abstracts differ primarily in that abstracts:

Are always published annually while indexes are monthly
Provide a brief summary of the content of each document in addition to the citation✔️
Cover only books while indexes cover journals
Are restricted to government publications

Correct Answer Logic:

While both indexes and abstracts provide citations to documents, abstracts additionally include a brief summary (abstract) of each document's content, helping users assess relevance before retrieving the full text — saving time and effort.

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