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Per ACI 318, for Grade 40 or 50 deformed bars, the minimum temperature and shrinkage steel ratio \(\rho_{min} = 0.0020\) (i.e. 0.20%) of the gross cross-sectional area.

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Islamic Studies QUESTION #7915

Question 1205

Al-Khawarazmi was an outstanding Muslim:

Chemist
Poet
Calligrapher
Mathematician✔️

Correct Answer Logic:

Muhammad ibn Musa Al-Khwarizmi was a brilliant Muslim mathematician, astronomer, and geographer. He is known as the 'father of algebra' - the word 'algebra' comes from his book 'Al-Kitab al-Mukhtasar fi Hisab al-Jabr wal-Muqabala.' The term 'algorithm' is derived from his name.

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Physics QUESTION #401

Question 1206

A 2m long pipe is open at both ends. What is its harmonic frequency?

42.5 Hz
85 Hz✔️
220 Hz
None of these

Correct Answer Logic:

For open pipe: f = v/2L = 340/(2?2) = 85 Hz

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Physics QUESTION #7837

Question 1207

Electron moving perpendicular to magnetic field: electromagnetic force is:

Equal to electron charge
Equal to B
Maximum✔️
Zero

Correct Answer Logic:

F = qvB sinθ, with θ=90° → sin90=1 → F maximum.

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Psychology QUESTION #9874

Question 1208

Which of the following is most likely to lead to high job satisfaction?

Matching personality with occupation✔️
Promotion practices based on seniority
Having an outgoing personality
Working alone

Correct Answer Logic:

Research consistently shows that person-environment fit — matching personality to occupation — strongly predicts job satisfaction. Holland's vocational personality theory confirms congruence between personality type and work environment predicts satisfaction.

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Biology QUESTION #7274

Question 1209

Oxygenic photosynthesis occurs in:

Chlorobium
Chromatium
Oscillatoria✔️
Rhodospirillum

Correct Answer Logic:

Oscillatoria is a cyanobacterium that performs oxygenic photosynthesis — it uses water as the electron donor and releases O₂ as a byproduct, just like plants. Chlorobium (green sulfur bacteria), Chromatium (purple sulfur bacteria), and Rhodospirillum (purple non-sulfur bacteria) are anoxygenic photosynthesizers — they do not release oxygen.

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Nursing QUESTION #9234

Question 1210

A Head Nurse notes that an ICU patient's Glasgow Coma Scale (GCS) score is as follows: opens eyes to pain (\(E2\)), makes incomprehensible sounds (\(V2\)), flexion withdrawal to pain (\(M4\)). What is the total GCS score and what does it indicate?

\(\text{GCS} = 6\) — severe brain injury, immediate intubation required
\(\text{GCS} = 7\) — severe brain injury, intubation strongly indicated
\(\text{GCS} = 8\) — severe brain injury, intubation indicated (threshold \(\leq 8\))✔️
\(\text{GCS} = 9\) — moderate brain injury, close monitoring required

Correct Answer Logic:

Correct Answer: C — GCS = 8

GCS Calculation:
\[\text{GCS} = E + V + M = 2 + 2 + 4 = 8\]

GCS Scoring:

Domain	Response	Score
Eye (E)	Spontaneous	4
	To voice	3
	To pain	2
	None	1
Verbal (V)	Oriented	5
	Confused	4
	Inappropriate words	3
	Incomprehensible sounds	2
	None	1
Motor (M)	Obeys commands	6
	Localizes pain	5
	Withdrawal	4
	Flexion (Decorticate)	3
	Extension (Decerebrate)	2
	None	1

GCS \(\leq 8\) = severe brain injury = airway protection threshold — intubation is indicated.

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Dairy Food Science and Technology QUESTION #5983

Question 1211

The 'Cook' step in cheddar cheese making (heating curd-whey mixture to \(38\text{–}40^{\circ}\text{C}\)) serves primarily to:

Add cheddar flavor compounds
Promote syneresis (whey expulsion from curd) by stimulating casein matrix contraction and increasing starter culture activity✔️
Melt fat within the curd to achieve required fat content
Activate rennet for further coagulation

Correct Answer Logic:

The cooking/scalding step (heating to \(38\text{–}40^{\circ}\text{C}\) at \(1^{\circ}\text{C}/5\text{–}10\;\text{min}\)) in cheddar making promotes: syneresis — heat causes casein gel to contract expelling whey (moisture control is critical); and stimulates thermophilic starters while contributing to final curd texture and elasticity.

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Urdu QUESTION #5118

Question 1212

شاعرِ شباب کس شاعر کو کہا جاتا ہے؟

حسرت موہانی
آغا حشر کاشمیری
جوش ملیح آبادی✔️
ان میں سے کوئی نہیں

Correct Answer Logic:

جوش ملیح آبادی کو 'شاعرِ شباب' کہا جاتا ہے کیونکہ ان کی شاعری میں جوانی اور انقلابی جذبات کا بیان ملتا ہے۔

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Academic/Professional (Social Sciences) QUESTION #6488

Question 1213

In Marxist theory, the 'Bourgeoisie' refers to which group?

The working class
The owners of the means of production✔️
The religious leaders
The peasantry

Correct Answer Logic:

The Bourgeoisie are the ruling class in a capitalist society who own the factories, land, and resources.

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HR and Management QUESTION #6423

Question 1214

Which of the following best describes the fundamental difference between Personnel Management and Human Resource Management?

Personnel Management is reactive and administrative; HRM is proactive and strategic✔️
Personnel Management focuses on employee welfare; HRM focuses on cost reduction
Personnel Management is used in manufacturing; HRM is used in services
Personnel Management is centralized; HRM is decentralized

Correct Answer Logic:

The key distinction is that Personnel Management was primarily reactive and administrative (handling records, payroll, compliance), while HRM is proactive and strategic - aligning human resources with organizational goals, focusing on development, and treating people as valuable assets rather than costs.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5751

Question 1215

Which pharmacokinetic process describes the 'reversible' movement of a drug from the bloodstream into the interstitial fluid and tissues?

Absorption
Metabolism
Excretion
Distribution✔️

Correct Answer Logic:

Drug distribution is the process by which a drug reversibly leaves the bloodstream and enters the tissues.

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Law QUESTION #9677

Question 1216

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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Dairy Food Science and Technology QUESTION #5973

Question 1217

In spray drying, 'lecithin treatment' of the powder after drying is performed to produce:

Instantly soluble (instantized) powder with improved dispersibility in cold water✔️
A powder with higher fat content
A powder with reduced microbial count
A powder with lower \(T_g\) for better flow

Correct Answer Logic:

Lecithin (phosphatidylcholine) is applied to agglomerated whole milk powder to make it 'instant' — rapidly dispersible and wettable in cold water. Lecithin's amphiphilic nature reduces the hydrophobic fat-rich surface tension, allowing water to penetrate powder granules quickly.

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Chemistry QUESTION #5526

Question 1218

What is the maximum concentration of dissolved oxygen (DO) that can be present in cold water?

14 ppm✔️
8 ppm
10 ppm
16 ppm

Correct Answer Logic:

Dissolved oxygen (DO) levels depend on temperature — colder water can hold more dissolved oxygen. In cold water, DO can reach up to 14 ppm. Normal clean river water has DO around 8–10 ppm. A DO below 6 ppm is harmful to aquatic life. The correct answer is 14 ppm.

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Pakistan Affairs QUESTION #319

Question 1219

The name of the first Pakistani-manufactured aircraft is:

JF-17 Thunder✔️
JF-8 Thunder
JF-9 Thunder
JF-11 Thunder

Correct Answer Logic:

The JF-17 Thunder is a multi-role combat aircraft co-developed and produced in Pakistan.+1

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Nursing QUESTION #9306

Question 1220

In the care of a patient with chest drain (intercostal tube drainage), which of the following observations requires immediate nursing action?

Fluctuation (tidaling) in the water-seal chamber
Continuous bubbling in the water-seal chamber✔️
Absence of drainage for the first 2 hours
Drainage of 50 mL of serous fluid in 4 hours

Correct Answer Logic:

Understanding chest drain assessment:

Finding	Interpretation	Action
Fluctuation (tidaling)	Normal — reflects respiratory pressure changes	No action needed
Continuous bubbling in water-seal	Air leak — from lung or at connection site	Immediate action — check connections, notify physician
No tidaling	Lung fully expanded OR tube kinked/blocked	Assess tube position, X-ray
Sudden large drainage	Possible hemorrhage (>200 mL/hr)	Notify physician immediately

Continuous bubbling indicates a persistent air leak — could be bronchopleural fistula or disconnection at the tubing. The system should never be clamped without a physician's order — risk of tension pneumothorax.

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