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Statistics QUESTION #1980

The Poisson distribution is derived as the limiting form of the Binomial distribution when:

n is small and p is large
n is large, p is small, and $np = \lambda$ remains constant✔️
n and p both approach zero
n is fixed and p approaches 0.5

Correct Answer Logic:

The Poisson distribution arises as $n \to \infty$ and $p \to 0$ such that $\lambda = np$ remains a finite constant. Under these conditions, $\binom{n}{x}p^x(1-p)^{n-x} \to \dfrac{e^{-\lambda}\lambda^x}{x!}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3289

Question 2662

A 'Bacteriostatic' agent is one that:

Kills bacteria immediately
Inhibits the growth and reproduction of bacteria✔️
Sterilizes the surface
Promotes bacterial growth

Correct Answer Logic:

Bacteriostatic agents stop growth but do not necessarily kill the cells (unlike bactericidal agents).

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Law QUESTION #9677

Question 2663

Under Article 23 (Conspirators), things said or done by a conspirator are relevant against co-conspirators even if:

The accused was present at the time
The accused was ignorant of those particular acts and they occurred before he joined or after he left✔️
The acts occurred in a foreign country
The accused was arrested before those acts

Correct Answer Logic:

Article 23 states that such acts are relevant even though the accused may have been ignorant of all of them and they may have been taken place before he joined the conspiracy or after he left it.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3443

Question 2664

'Bile Salts' function in the digestion of fats by:

Breaking chemical bonds
Emulsification (breaking fat into small droplets)✔️
Changing the $pH$
Acting as a hormone

Correct Answer Logic:

This increases the surface area for lipase to work.

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Math Physics Chemistry Biology QUESTION #530

Question 2665

The total inside capacity of lungs of adult human beings when fully inflated is

5 ml✔️
50 ml
500 ml
5000 ml

Correct Answer Logic:

Total lung capacity is about 5-6 liters (5000 ml)

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Egnlish QUESTION #702

Question 2666

In "1984," what is "Newspeak"?

A new dialect
A language to limit thought✔️
A universal language
None of these

Correct Answer Logic:

Newspeak is a controlled language designed by the state to diminish the range of thought.

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Education QUESTION #7569

Question 2667

The philosophical foundation of curriculum is primarily concerned with:

Ideas✔️
Psychological foundation
Society
Content

Correct Answer Logic:

The philosophical foundation deals with underlying beliefs, values, and ideas about the nature of knowledge, truth, reality, and what is worth knowing.

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Statistics QUESTION #1994

Question 2668

If sampling is done with replacement from a population with mean $\mu = 4$ and variance $\sigma^2 = \frac{20}{9}$, then by Chebyshev's theorem, the probability that the sample mean $\bar{X}$ (for $n = 36$) lies between 3.26 and 4.74 is AT LEAST:

$0.75$✔️
$0.95$
$0.50$
$0.68$

Correct Answer Logic:

Here $\sigma_{\bar{X}}^2 = \sigma^2/n = (20/9)/36 = 20/324$, so $\sigma_{\bar{X}} = \sqrt{20}/18$. The interval $(3.26, 4.74)$ is $\mu \pm 0.74$. Then $k = 0.74/\sigma_{\bar{X}}$. Chebyshev gives $P(|\bar{X}-\mu|\leq k\sigma_{\bar{X}}) \geq 1 - 1/k^2$. With $k^2 = 4$, the lower bound is $1 - 1/4 = 0.75$.

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General Ability and Fire Fighting QUESTION #5626

Question 2669

Which firefighting method would be MOST appropriate for a small cooking oil fire on a stove?

Applying water directly to the fire
Covering the pan with a lid to smother it✔️
Using a CO2 extinguisher
Applying dry powder

Correct Answer Logic:

Covering the pan with a lid removes oxygen (smothering)

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English QUESTION #8511

Question 2670

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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Islamic Studies QUESTION #353

Question 2671

The book "The Preaching of Islam" is written by:

Theodor Nöldeke
T.W. Arnold✔️
Philip Hitti
W. Montgomery Watt

Correct Answer Logic:

Sir Thomas Walker Arnold wrote this classic work on the history of the propagation of the Muslim faith.+1

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Chemistry QUESTION #475

Question 2672

The crystals of __________ are ionic solids.

Sugar
Iron
Diamond
NaCl✔️

Correct Answer Logic:

NaCl forms ionic crystals

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The Elections Act 2017 QUESTION #9464

Question 2673

Section 167(b) defines a distinct head of corrupt practice: calling upon or persuading any person to vote or refrain from voting based on their religion, province, community, race, caste, bradari, sector, or tribe. The 2023 amendment expanded this provision to also cover:

Sexual orientation
National origin
A person's gender or being a transgender person✔️
Regional language

Correct Answer Logic:

Section 167(b) [as amended by the 2023 Act] was expanded to include appeals based on a person 'is of a particular gender or is a transgender person' as a corrupt practice.

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Administration QUESTION #9551

Question 2674

A civil servant in Grade 19 applies for promotion to Grade 20. According to the Civil Servants Act 1973 and constitutional provisions, which appointing authority is responsible for appointments at Grade 20 and above?

Federal Public Service Commission through competitive examination
Prime Minister through the Cabinet Secretariat on the advice of the Establishment Division
The President of Pakistan✔️
The relevant Minister in consultation with the Secretary of the Ministry

Correct Answer Logic:

Article 240 of the Constitution and Civil Servants Act 1973 establish that appointments at Grade 20 and above are made by the President. This reflects the constitutional principle that senior civil service appointments carry national significance and require presidential authority.

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Agronomy QUESTION #2074

Question 2675

In the context of water use efficiency (WUE), deficit irrigation strategy is agronomically justified when:

Full irrigation always maximizes both yield and profit regardless of water scarcity
Marginal value of the last unit of water applied to the crop (in terms of yield gain) falls below the marginal cost of water supply — intentionally applying less than full ET requirement increases WUE and economic returns per unit water while accepting a modest, manageable yield reduction✔️
Water is abundant and energy costs are negligible
Soil salinity prevents full water application

Correct Answer Logic:

Deficit irrigation deliberately applies water below full ET demand during less sensitive growth stages, exploiting crop drought tolerance to save water. The agronomic justification is economic: when water is scarce or costly, WUE (kg yield per m³ water) and profit per unit water is maximized by deficit irrigation — even with modest yield reduction — compared to fully irrigating a smaller area.

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Math Physics Chemistry Biology QUESTION #7783

Question 2676

A motor neuron transmits impulses:

From effectors to CNS
From receptors to CNS
From CNS to muscles (effectors)✔️
Connects sensory nerves to ganglia

Correct Answer Logic:

Motor (efferent) neurons carry signals from CNS to effectors (muscles/glands). Sensory (afferent) neurons carry signals from receptors to CNS. Interneurons connect within CNS.

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General Knowledge QUESTION #4743

Question 2677

Hugo Chávez was the President of which country?

Venezuela✔️
Brazil
Bolivia
Cuba

Correct Answer Logic:

Hugo Chávez served as President of Venezuela from 1999 until his death in 2013. He was known for his socialist Bolivarian Revolution policies.

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Security Measures to Maintain Law and Order QUESTION #944

Question 2678

What is the purpose of 'Explosive Trace Detection' (ETD)?

To find stolen money
To detect vapors or particles of explosives✔️
To weigh heavy bags
To check for narcotics

Correct Answer Logic:

ETD technology can find microscopic traces of explosives that are invisible to the naked eye.

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Dairy Food Science and Technology QUESTION #5905

Question 2679

Colloidal calcium phosphate (CCP) associated with casein micelles plays which critical role?

It provides casein its yellow color
It acts as a cross-linking agent holding sub-micelles together and contributes to heat stability; removal by acidification to $\text{pH}\;4.6$ or EDTA causes micelle disintegration✔️
It is responsible for lactose synthesis
It inhibits lipolysis in raw milk

Correct Answer Logic:

Colloidal calcium phosphate (CCP) is integral to casein micelle structure, acting as electrostatic and coordinate cross-links between casein sub-micelles. Removal of CCP by acidification to $\text{pH}\;4.6$ or EDTA treatment causes micelle disintegration.

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Sociology QUESTION #1671

Question 2680

Talcott Parsons' 'pattern variables' framework presents five pairs of opposed value-orientation choices that structure social action and role expectations. Which of the following pairings does NOT belong to Parsons' original set of pattern variables?

Universalism versus Particularism
Achievement versus Ascription
Rationalism versus Emotionalism✔️
Affectivity versus Affective Neutrality

Correct Answer Logic:

Parsons' five pattern variables are: (1) Universalism vs. Particularism, (2) Achievement vs. Ascription, (3) Affectivity vs. Affective Neutrality, (4) Specificity vs. Diffuseness, and (5) Self-orientation vs. Collectivity-orientation. 'Rationalism vs. Emotionalism' is NOT one of Parsons' pattern variables — making it the correct answer to this 'which does NOT belong' question.

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