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Statistics QUESTION #1980
Question 2661
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, \(\binom{n}{x}p^x(1-p)^{n-x} \to \dfrac{e^{-\lambda}\lambda^x}{x!}\).
Uploaded by: Fani Warraich
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).
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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)
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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 \(1 - 1/4 = 0.75\).
Uploaded by: Fani Warraich
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)
Uploaded by: Fani Warraich
Correct Answer Logic:
'Care for' means to look after.
Uploaded by: Fani Warraich
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
Uploaded by: Fani Warraich
Chemistry QUESTION #475
Question 2672
The crystals of __________ are ionic solids.
  • Sugar
  • Iron
  • Diamond
  • NaCl✔️
Correct Answer Logic:
NaCl forms ionic crystals
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.

Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich