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Chemistry QUESTION #1421

Organic polymers
Inorganic polymers
Hybrid organic-inorganic polymers✔️
None of these

Correct Answer Logic:

Silicones (polysiloxanes) are hybrid organic-inorganic polymers. Their backbone is inorganic — consisting of alternating silicon and oxygen atoms ($\text{Si-O-Si}$ chains) — while organic groups (typically methyl or phenyl) are attached to silicon. This dual nature gives silicones unique properties: thermal stability, water repellence, and flexibility.

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Education QUESTION #6734

Question 3562

A teacher wants to assess creativity. Which approach MOST validly measures creative thinking?

Standardized multiple-choice tests✔️
Open-ended tasks with clear criteria for originality
fluency
flexibility

Correct Answer Logic:

Memorization of creative works

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Nursing QUESTION #9215

Question 3563

In Rosemarie Rizzo Parse's Human Becoming Theory, which of the following is NOT one of the three core principles?

Structuring meaning multidimensionally
Cocreating rhythmical patterns of relating
Transcending with possibles
Adapting to environmental stimuli to maintain homeostasis✔️

Correct Answer Logic:

Correct Answer: D

Parse's Human Becoming Theory (1981) is rooted in existential-phenomenological thought (derived from Heidegger, Sartre, and Merleau-Ponty). It has three core principles:

Structuring Meaning Multidimensionally: Humans construct reality through their lived experiences (imaging, valuing, languaging)
Cocreating Rhythmical Patterns of Relating: Humans and environment co-create patterns (revealing-concealing, enabling-limiting, connecting-separating)
Transcending with Possibles: Humans continuously reach beyond what is toward possibilities (powering, originating, transforming)

'Adapting to environmental stimuli to maintain homeostasis' describes Roy's Adaptation Model, not Parse's theory.

Parse's theory challenges nurses to be true presence — bearing witness to the patient's experience rather than imposing a medical model of health.

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Pakistan Affairs QUESTION #4667

Question 3564

What is the largest source of electricity generation in Pakistan?

Thermal✔️
Hydel
Coal
Nuclear

Correct Answer Logic:

Thermal power plants (using natural gas, oil, and coal) have been the largest source of electricity generation in Pakistan, accounting for a majority of total generation capacity.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3273

Question 3565

Which scientist is known as the 'Father of Microbiology' for his work with microscopes?

Louis Pasteur
Antonie van Leeuwenhoek✔️
Robert Koch
Alexander Fleming

Correct Answer Logic:

Leeuwenhoek was the first to observe 'animalcules' (bacteria and protozoa) using handcrafted lenses.

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Math Physics Chemistry Biology QUESTION #736

Question 3566

Bernoulli equation is according to ___ law.

Stoke's law
Einstein's equation
Newton's law✔️
None

Correct Answer Logic:

Bernoulli's equation is derived from the conservation of energy and is consistent with Newton's laws of motion applied to fluid flow.

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General Knowledge QUESTION #8848

Question 3567

By the term 'Third World', we usually understand:

Third Party Insurance companies
Non-aligned countries (developing nations)✔️
Third world nations
All of above

Correct Answer Logic:

Third World originally referred to non-aligned and developing countries.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3660

Question 3568

'Ginseng' is a famous tonic root used in which traditional system?

Unani
Homeopathy
Chinese Medicine✔️
Allopathy

Correct Answer Logic:

Ginseng is highly valued in Traditional Chinese Medicine (TCM).

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Physics QUESTION #1173

Question 3569

Alpha particles and electrons having the same energy — their associated De Broglie wavelengths are:

Equal
Longer than electrons (alpha has longer wavelength)
Smaller than electrons (alpha has shorter wavelength)✔️
None of these

Correct Answer Logic:

De Broglie wavelength: $\lambda = \frac{h}{\sqrt{2mE}}$. At the same kinetic energy $E$, $\lambda \propto \frac{1}{\sqrt{m}}$. Since $m_\alpha \gg m_e$ (alpha particle is ~7294 times heavier), $\lambda_\alpha \ll \lambda_e$. So alpha particles have a much shorter De Broglie wavelength than electrons at the same energy.

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Boilers Mechanical Engineering QUESTION #2387

Question 3570

For a type-one system (one integrator in the open-loop transfer function) with a ramp input $X_i(s)=1/s^2$, the steady-state error is:

$E_s = 0$
$E_s = \frac{1}{K_v}$ where $K_v = \lim_{s\to 0} sY_1(s)$ (velocity error constant)✔️
$E_s = \infty$
$E_s = 1$

Correct Answer Logic:

For a ramp input with a type-one system: $E_s=\lim_{s\to 0}\frac{s}{1+Y_1(s)}\cdot\frac{1}{s^2}=\frac{1}{\lim_{s\to 0}sY_1(s)}=\frac{1}{K_v}$. The velocity error constant $K_v=\lim_{s\to0}sY_1(s)$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3406

Question 3571

'Glycolysis' occurs in which part of the cell?

Mitochondria
Nucleus
Cytoplasm✔️
Ribosome

Correct Answer Logic:

Glycolysis breaks down glucose into pyruvate in the cytosol.

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Administration QUESTION #9587

Question 3572

Schein's model of organizational culture identifies three levels: artifacts, espoused values, and underlying assumptions. A new CEO announces a public commitment to innovation but the organization continues to punish failure. At which level does the real culture reside, and what does this reveal about cultural change management?

At the artifacts level — the innovation posters and speeches are the culture; changing them is sufficient to change the organization
At the underlying assumptions level — the actual culture is the deep, unconscious belief that failure is unacceptable; this is the hardest level to change and requires sustained behavioral intervention to surface and challenge these assumptions✔️
At the espoused values level — the CEO's public commitment is the culture; it needs to be reinforced through formal policy before it becomes real
At the artifacts level — because only observable behaviors constitute organizational culture; psychological assumptions are outside management's control

Correct Answer Logic:

Schein's model is hierarchical: artifacts (visible) reflect espoused values (stated beliefs) which may mask underlying assumptions (unconscious, taken-for-granted beliefs). When behavior contradicts stated values, the underlying assumptions are controlling conduct. Punishing failure despite 'valuing innovation' reveals the deep assumption that failure is dangerous — the hardest cultural level to change because it is rarely articulated or examined.

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Islamic Studies QUESTION #360

Question 3573

Who was the last Abbasid Caliph (in Baghdad)?

Al Qaim
Al Zahir
Al Mustakfi
Al Mustasim✔️

Correct Answer Logic:

Al-Mustasim Billah was the last caliph of the Abbasid Caliphate in Baghdad before the Mongol invasion.+1

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Chemistry QUESTION #7504

Question 3574

What is the correct IUPAC name of the organic compound with structure: two methyl groups on C1 of a double bond (C1=C2), with a hydrogen on C2, and a bromo-methyl group on C3?
(The compound is: $\text{CH}_3\text{C(CH}_3\text{)=CHCH(Br)CH}_3$, i.e., a five-carbon chain with a double bond and bromine substituent)

3-Bromo-1,2-dimethylbut-1-ene
3-Bromo-3-methyl-1,2-dimethylprop-1-ene
2-Bromo-3-methylpent-3-ene
4-Bromo-3-methylpent-2-ene✔️

Correct Answer Logic:

Identify the longest chain containing the double bond: 5 carbons (pent), with double bond at C2 (pent-2-ene).

Number from the end that gives the double bond the lower locant. A methyl group appears at C3 and Br at C4.

IUPAC name: 4-Bromo-3-methylpent-2-ene

This is a 5-carbon chain ($n = 5$: pent) with double bond at position 2 (C2=C3), methyl at C3, and Br at C4.

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Physics QUESTION #7019

Question 3575

Calculate the ratio of the root mean square ($rms$) velocities of Helium and Argon atoms, given that the atomic mass of Helium is $4\text{ u}$ and Argon is $40\text{ u}$, both at the same temperature.

$3.16$✔️
$0.32$
$0.45$
$2.24$

Correct Answer Logic:

The $rms$ velocity is given by $v_{rms} = \sqrt{\frac{3RT}{M}}$. Since $T$ is constant, the ratio is inversely proportional to the square root of the molar masses: $\frac{v_{He}}{v_{Ar}} = \sqrt{\frac{M_{Ar}}{M_{He}}} = \sqrt{\frac{40}{4}} = \sqrt{10} \approx 3.16$.

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Nursing QUESTION #9246

Question 3576

A patient in the ICU is started on Propofol infusion for sedation at $50 \text{ mcg/kg/min}$. After 48 hours, the patient develops metabolic acidosis, elevated triglycerides, elevated CK, and kidney failure. What is the MOST likely complication?

Propofol-induced hepatotoxicity
Propofol Infusion Syndrome (PRIS)✔️
Opioid-induced hyperalgesia
Benzodiazepine withdrawal syndrome

Correct Answer Logic:

Correct Answer: B — Propofol Infusion Syndrome (PRIS)

Propofol Infusion Syndrome (PRIS) is a rare but life-threatening complication of prolonged high-dose propofol infusion.

Risk factors:

Dose $> 5 \text{ mg/kg/hr}$ (or $> 83 \text{ mcg/kg/min}$) for $> 48$ hours
Concomitant use of catecholamines or corticosteroids
Low carbohydrate intake
Children (higher risk)

Clinical features of PRIS (PRIS mnemonic):

Pink/lipemic plasma, rhabdomyolysis
Renal failure (AKI)
Increase in CK, triglycerides
Severe metabolic acidosis, cardiac failure

Management:

Immediately stop propofol infusion
Switch to alternative sedation (midazolam, dexmedetomidine)
Supportive care (CRRT for renal failure)
Treat metabolic acidosis

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Accounting & Finance QUESTION #9636

Question 3577

In a Single Entry system, a trader's Opening Capital was Rs. 100,000 and Closing Capital Rs. 145,000. During the year drawings were Rs. 30,000 and fresh capital introduced was Rs. 15,000. What is the Net Profit for the year?

Rs. 60,000✔️
Rs. 45,000
Rs. 75,000
Rs. 30,000

Correct Answer Logic:

Net Profit = Closing Capital + Drawings – Opening Capital – Fresh Capital = 145,000 + 30,000 – 100,000 – 15,000 = Rs. 60,000. The Statement of Profit or Loss reverses the owner's equity equation to isolate profit.

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HR and Management QUESTION #6468

Question 3578

The basic management functions that all managers perform include:

Planning, organizing, leading, and controlling
Planning, organizing, staffing, leading, and controlling✔️
Staffing, training, compensating, and appraising
Recruiting, selecting, developing, and retaining

Correct Answer Logic:

The text states that basic functions all managers perform are planning, organizing, staffing, leading, and controlling. HR management specifically involves policies and practices for the staffing (people) function within this framework.

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General Knowledge QUESTION #4775

Question 3579

After Pashtuns, which ethnic group constitutes the second-largest population in Afghanistan?

Uzbeks
Hazaras
Tajiks✔️
Turkmens

Correct Answer Logic:

Tajiks are the second-largest ethnic group in Afghanistan after Pashtuns, comprising approximately 27% of the population. They are predominantly found in northern and western Afghanistan.

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Therapeutics and Patient Care QUESTION #3865

Question 3580

What is the recommended daily calcium intake range for women who have gone through menopause?

$300$–$600$ mg
$700$–$900$ mg
$1000$–$1500$ mg✔️
$1600$–$2000$ mg

Correct Answer Logic:

Post-menopausal women require $1000$–$1500$ mg of calcium daily to prevent osteoporosis.

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