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General Knowledge QUESTION #8660

Question 1

How many member states are currently in the European Union (EU)?

23
25
28✔️
29

Correct Answer Logic:

At the time of the PDF, 28 members; currently 27. Key says 28.

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Electrical Engineering QUESTION #2151

Question 2

The Skin Effect in a conductor is more prominent at:

DC (Zero frequency)
Low frequencies
High frequencies✔️
All frequencies equally

Correct Answer Logic:

Skin effect, where current density is highest near the surface, increases as the frequency $f$ increases due to the decrease in skin depth $\delta = \sqrt{\frac{2}{\omega\mu\sigma}}$.

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Physics and Math QUESTION #784

Question 3

The distance of a point $(10, -10)$ from origin is:

$10\sqrt{2}$✔️
10
15
None

Correct Answer Logic:

Distance $= \sqrt{10^2 + (-10)^2} = \sqrt{100 + 100} = \sqrt{200} = 10\sqrt{2}$.

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Mathematics QUESTION #1321

Question 4

The area enclosed between two curves $y=f(x)$ and $y=g(x)$ where $f(x)\geq g(x)$ on $[a,b]$ is given by:

$\int_a^b[f(x)+g(x)]\,dx$
$\int_a^b[f(x)-g(x)]\,dx$✔️
$\int_a^b[f(x)\cdot g(x)]\,dx$
$\dfrac{1}{2}\int_a^b[f(x)-g(x)]\,dx$

Correct Answer Logic:

The area between two curves is the integral of the top curve minus the bottom curve: $A=\int_a^b[f(x)-g(x)]\,dx$ where $f(x)\geq g(x)$ on $[a,b]$. The limits $a$ and $b$ are the $x$-coordinates of the intersection points.

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HR and Management QUESTION #6463

Question 5

The accommodation of workers' needs as a growing importance factor in HRM primarily addresses:

Increasing labor costs and reducing profitability
Friction between organizational demands and family responsibilities✔️
Compliance with government mandates
Competition for scarce talent in the market

Correct Answer Logic:

Worker accommodation programs (flexible schedules, parental leave, child-care, job sharing) are designed to reduce friction between organizational demands and family responsibilities. The HR department plays a central role in establishing and implementing these policies.

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Civil / Architecture QUESTION #2367

Question 6

In open channel hydraulics, the specific energy $E$ at a cross-section with depth $y$, velocity $V$, and discharge per unit width $q$ is given by $E = y + \dfrac{V^2}{2g}$. The critical depth $y_c$ for a rectangular channel, at which specific energy is minimum for a given discharge $q$, is:

$y_c = \sqrt[3]{\dfrac{q}{g}}$
$y_c = \sqrt[3]{\dfrac{q^2}{g}}$✔️
$y_c = \sqrt{\dfrac{q^2}{g}}$
$y_c = \left(\dfrac{q^2}{g}\right)^{2/3}$

Correct Answer Logic:

Critical depth for a rectangular channel: $y_c = \left(\dfrac{q^2}{g}\right)^{1/3} = \sqrt[3]{\dfrac{q^2}{g}}$. At critical depth, the Froude number $Fr = \dfrac{V}{\sqrt{gy}} = 1$. For $y < y_c$: supercritical flow ($Fr > 1$); for $y > y_c$: subcritical flow ($Fr < 1$). The minimum specific energy $E_{min} = \dfrac{3}{2} y_c$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3117

Question 7

The finger-like projections in the small intestine that increase surface area are called:

Cilia
Villi✔️
Flagella
Rugae

Correct Answer Logic:

Villi (and microvilli) are crucial for efficient absorption of nutrients.

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General Knowledge QUESTION #8929

Question 8

The word 'Tsunami' originates from which language?

English
Japanese✔️
Urdu
None of these

Correct Answer Logic:

Tsunami is a Japanese word.

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Urdu QUESTION #5127

Question 9

درست محاورہ کون سا ہے: آبرو پر .... لگانا۔

بٹہ✔️
مٹی
برمتی
ان میں سے کوئی نہیں

Correct Answer Logic:

درست محاورہ ہے: 'آبرو پر بٹہ لگانا' یعنی کسی کی عزت و وقار کو نقصان پہنچانا۔

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Political Science QUESTION #6688

Question 10

The 18th Amendment to the Constitution of Pakistan (2010) primarily focused on:

Presidential Powers
Provincial Autonomy✔️
Judicial Appointments
None of these

Correct Answer Logic:

The 18th Amendment significantly increased provincial autonomy and removed the President's power to dissolve Parliament.

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General Abilities QUESTION #7975

Question 11

A rectangle has a length of 16 cm and a breadth of 3 cm. What is its area?

40 cm
40 cm
$19 \text{ cm}^2$
$48 \text{ cm}^2$✔️

Correct Answer Logic:

Area of rectangle $= l \times b = 16 \times 3 = 48 \text{ cm}^2$

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English QUESTION #2722

Question 12

Identify the ADJECTIVE in the sentence: 'The tall building collapsed.'

The
tall✔️
building
collapsed

Correct Answer Logic:

An adjective describes or modifies a noun. 'Tall' describes the noun 'building'. 'The' is an article; 'building' is a noun; 'collapsed' is a verb.

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Education QUESTION #6707

Question 13

A teacher wants to measure students' 'ability to apply Newton's laws to novel situations.' Which assessment format BEST aligns with this objective?

Multiple-choice questions on Newton's laws
Presenting new scenarios requiring application of Newton's laws✔️
Essay explaining Newton's three laws
Matching laws to their definitions

Correct Answer Logic:

Assessment should align with objectives. If the goal is application to novel situations, assessment must present unfamiliar scenarios requiring transfer of knowledge. Simple recall or explanation doesn't measure application ability.

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Mathematics QUESTION #6012

Question 14

Let $f$ be differentiable with $f'(x)=7-\dfrac{3}{4}\dfrac{f(x)}{x}$ for $x>0$ and $f(1)\neq 4$. Find $\displaystyle\lim_{x\to 0^+} x\,f\!\left(\dfrac{1}{x}\right)$.

Exists and equals $\dfrac{4}{7}$
Exists and equals $4$✔️
Does not exist
Exists and equals $0$

Correct Answer Logic:

Let $g(x) = f(x)/x$. Substituting $t = 1/x$ (so $x\to 0^+$ means $t\to\infty$):

$x\cdot f(1/x) = \frac{f(t)}{t} = g(t)$ as $t\to\infty$.

From $f'(x) = 7 - \frac{3}{4}\frac{f(x)}{x}$, the equilibrium $g = f(x)/x$ satisfies: as $x\to\infty$, $g\to 4$ (the fixed point where $g' = 0$, i.e., $7 - \frac{7}{4}g = 0 \Rightarrow g = 4$). Since $f(1)\neq 4$, the limit still converges to $\mathbf{4}$.

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Physics QUESTION #1175

Question 15

In nuclear physics, the magic number defines:

Nuclear binding energy
Relatively exceptionally stable nuclei✔️
Radioactivity
None of these

Correct Answer Logic:

Magic numbers (2, 8, 20, 28, 50, 82, 126) are specific numbers of protons or neutrons that result in exceptionally stable nuclei. Nuclei with magic numbers have completely filled nuclear shells, analogous to noble gas electron configurations in atomic physics, giving them extra stability.

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Nursing QUESTION #9235

Question 16

In Increased Intracranial Pressure (ICP) management, a patient's ICP is $22 \text{ mmHg}$ and MAP is $90 \text{ mmHg}$. What is the Cerebral Perfusion Pressure (CPP) and is it adequate?

$\text{CPP} = 68 \text{ mmHg}$ — adequate (target $\geq 60 \text{ mmHg}$)✔️
$\text{CPP} = 112 \text{ mmHg}$ — dangerously high
$\text{CPP} = 45 \text{ mmHg}$ — inadequate, cerebral ischemia likely
$\text{CPP} = 58 \text{ mmHg}$ — borderline, immediate intervention needed

Correct Answer Logic:

Correct Answer: A — CPP = 68 mmHg, adequate

Formula:
\[\text{CPP} = \text{MAP} - \text{ICP}\]
\[\text{CPP} = 90 - 22 = 68 \text{ mmHg}\]

Target values in TBI management (Brain Trauma Foundation):

CPP target: $60 - 70 \text{ mmHg}$
ICP target: $< 20 \text{ mmHg}$
MAP target: $\geq 80 \text{ mmHg}$

ICP management interventions:

Head of bed elevation $30°$
Hyperosmolar therapy: Mannitol $0.25 - 1 \text{ g/kg}$ IV or hypertonic saline (3%)
Controlled hyperventilation: target $\text{PaCO}_2 = 35 \text{ mmHg}$ (temporary)
Sedation and analgesia
Avoid hyperthermia, hypoxia, hypotension
CSF drainage via ventriculostomy

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Political Science QUESTION #6671

Question 17

Who wrote 'Siyasatnama' (The Book of Government)?

Al-Ghazali
Nizam-ul-Mulk Tusi✔️
Ibn-e-Khaldun
None of these

Correct Answer Logic:

Nizam-ul-Mulk Tusi wrote this Persian work on kingship and administration.

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Law QUESTION #9507

Question 18

A written statement is not filed by the defendant within the prescribed time. The trial Court strikes off the defence and proceeds ex parte. The defendant argues the Court cannot impose this sanction. Is the Court's action valid?

No; the Court can only adjourn and cannot strike off defence
No; striking off the defence requires the consent of the plaintiff
Yes; under Order VIII Rule 10, if a defendant fails to file a written statement within the time fixed, the Court may proceed to pronounce judgment or may, at its discretion, allow further time after striking off the right to file a written statement✔️
No; the Court must give unlimited opportunities to file a written statement

Correct Answer Logic:

Order VIII Rule 10 CPC empowers the Court to pronounce judgment or take any other order it deems fit if a defendant omits or refuses to file a written statement within the time allowed. Striking off the defence and proceeding ex parte is within the Court's discretion as a consequence of non-compliance.

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Math Physics Chemistry Biology QUESTION #4278

Question 19

The neurotransmitters are secreted by the neuron from:

Axon ends✔️
Dendrite end
Nissl's granules
Cell body

Correct Answer Logic:

Neurotransmitters are stored in synaptic vesicles at the axon terminals (synaptic knobs) and released into the synaptic cleft upon stimulation.

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Math Physics Chemistry Biology QUESTION #7781

Question 20

The plasma membrane is selectively permeable mainly due to the presence of:

Carbohydrates
Lipids
Proteins✔️
Vitamins

Correct Answer Logic:

Integral membrane proteins (e.g., channels, carriers, pumps) control selective transport. Lipids form the barrier but without proteins, permeability is limited to small nonpolar molecules.

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