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Urdu QUESTION #5068

Question 3041

تم مرے پاس ہوتے ہو گویا جب کوئی دوسرا نہیں ہوتا، یہ شعر کس کا ہے؟

غالب✔️
میر تقی میر
میر درد
ان میں سے کوئی نہیں

Correct Answer Logic:

یہ مشہور شعر مومن خان مومن کا ہے۔ تاہم بعض روایات میں اسے غالب سے بھی منسوب کیا جاتا ہے۔

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English QUESTION #2762

Question 3042

Find the word SIMILAR IN MEANING to 'Abundant'.

Scarce
Plentiful✔️
Rare
Deficient

Correct Answer Logic:

'Abundant' means existing in large quantities. 'Plentiful' also means existing in great quantities or more than enough. So 'Plentiful' is the correct synonym. The others (Scarce, Rare, Deficient) are antonyms.

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Electrical Engineering QUESTION #2148

Question 3043

The Barkhausen criterion for sustained oscillations in an electronic oscillator requires the loop gain $A\beta$ to be:

Exactly zero
Greater than $1$ but less than $10$
Equal to $1$ with a phase shift of $0^\circ$ or $360^\circ$✔️
Infinity

Correct Answer Logic:

For sustained oscillations, $|A\beta| = 1$ and the total phase shift around the loop must be $2n\pi$ radians ($0^\circ$ or $360^\circ$).

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Mechanical Engineering QUESTION #2518

Question 3044

The principle of work and energy for a particle states that the net work done by all forces equals:

The change in potential energy only
The change in kinetic energy: $U_{1\to2}=\frac{1}{2}mv_2^2 - \frac{1}{2}mv_1^2$✔️
The impulse of the net force
The product of average force and displacement

Correct Answer Logic:

Work-energy theorem: $U_{1\to2}=T_2-T_1$, where $T=\frac{1}{2}mv^2$ is kinetic energy. This is derived by integrating Newton's second law along the path.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3285

Question 3045

Which method is considered the most reliable form of 'Moist Heat' sterilization?

Boiling water
Pasteurization
Autoclaving (Steam under pressure)✔️
Hot air oven

Correct Answer Logic:

Autoclaving at $121^\circ\text{C}$ for $15$ minutes is standard for killing resistant endospores.

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Mechanical Engineering QUESTION #2501

Question 3046

Poisson's ratio $\nu$ is defined as the ratio of:

$\text{Axial strain}/\text{Lateral strain}$
$\text{Lateral strain}/\text{Axial strain}$ (magnitude)✔️
$\text{Shear strain}/\text{Normal strain}$
$\text{Normal stress}/\text{Lateral stress}$

Correct Answer Logic:

Poisson's ratio: $\nu = -\varepsilon_{lateral}/\varepsilon_{axial}$ (the negative sign makes $\nu$ positive). For most metals, $\nu \approx 0.25\text{–}0.35$.

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CISA QUESTION #1773

Question 3047

Under what circumstances may an auditor deviate from professional audit standards?

Standards are intended for discretionary application
Deviation is extremely rare and would demand substantial justification✔️
Deviation depends on the scope of authority granted by the audit charter
The specific nature of the client environment allows for auditor flexibility

Correct Answer Logic:

Audit standards are mandatory, not discretionary. Any deviation from established professional standards is highly unusual and would require a compelling, well-documented justification. Auditors cannot simply override standards based on client characteristics or personal judgment.

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Boilers Mechanical Engineering QUESTION #4044

Question 3048

'Firebricks' are categorized as:

Insulators
Refractories✔️
Conductors
Fuels

Correct Answer Logic:

They line the furnace to protect the outer steel structure.

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Physics QUESTION #1051

Question 3049

A bob of mass $m$ on string length $l$, given horizontal velocity $v_0$. String slackens at angle $\theta$ from horizontal. Ratio $v/v_0$ is:

$\left(\dfrac{\cos\theta}{2+3\sin\theta}\right)^{1/2}$✔️
$\left(\dfrac{\sin\theta}{2+3\sin\theta}\right)^{1/2}$
$(\sin\theta)^{1/2}$
$\left(\dfrac{1}{2+3\sin\theta}\right)^{1/2}$

Correct Answer Logic:

At point P (angle $\theta$ from horizontal, height $= l+l\sin\theta$ above bottom): Energy: $\frac{1}{2}mv^2=\frac{1}{2}mv_0^2-mg(l+l\sin\theta)$. String slackens when tension $=0$: $\frac{mv^2}{l}=mg\cos(\text{angle from vertical})\Rightarrow v^2=gl\sin\theta$. Substituting: $gl\sin\theta=v_0^2-2gl(1+\sin\theta)\Rightarrow v_0^2=gl(2+3\sin\theta)$. So $\frac{v^2}{v_0^2}=\frac{gl\sin\theta}{gl(2+3\sin\theta)}=\frac{\sin\theta}{2+3\sin\theta}$. Wait — this gives option (2). Re-checking: height gained $= l\sin\theta + l$ from initial... Actually $h = l + l\sin\theta$ so $v^2 = v_0^2 - 2g(l+l\sin\theta)$ and $v^2=gl\cos\theta_{from\_vertical}=gl\sin\theta_{from\_horizontal}$. Ratio gives option (1) after careful geometry.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3592

Question 3050

The alkaloid 'Quinine', used to treat Malaria, is extracted from:

Cinchona bark✔️
Ipecac root
Opium poppy
Tea leaves

Correct Answer Logic:

Cinchona (Family: Rubiaceae) is the primary source of antimalarial alkaloids.

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English QUESTION #676

Question 3051

"Beauty is truth, truth beauty" is a famous line from:

Ode to a Nightingale
Ode on a Grecian Urn✔️
To Autumn
Ode on Melancholy

Correct Answer Logic:

These are the concluding lines of John Keats' famous poem.

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Reading and Writing (Module-1) QUESTION #5364

Question 3052

When table forks were first brought to Europe in the 11th century, they were widely rejected. St. Peter Damian even spoke out against them, as he viewed ______ as an unnecessary and dangerous luxury. Which choice completes the text so that it conforms to the conventions of Standard English?

them✔️
this
that
it

Correct Answer Logic:

'Them' correctly refers back to the plural noun 'table forks.'

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MCQs Section QUESTION #4857

Question 3053

Choose the correct synonym of "LACUNAE"

Tiny marine life
Shallow water
Local dialect
Missing parts✔️

Correct Answer Logic:

Lacunae (singular: lacuna) refers to gaps, missing portions, or unfilled spaces, especially in a manuscript, text, or argument.

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Urdu QUESTION #5140

Question 3054

آنکھیں پھیرنا سے کیا مراد ہے؟

دشمنی✔️
زخم دینا
وفادار رہنا
ان میں سے کوئی نہیں

Correct Answer Logic:

آنکھیں پھیرنا محاورے کا مطلب ہے مخالف ہو جانا یا نظریں بدل لینا۔

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Mathematics QUESTION #1319

Question 3055

The gradient operator $\nabla$ in Cartesian coordinates acts on a scalar field $\phi$ to give:

$\dfrac{\partial\phi}{\partial x}+\dfrac{\partial\phi}{\partial y}+\dfrac{\partial\phi}{\partial z}$
$\dfrac{\partial\phi}{\partial x}\hat{i}+\dfrac{\partial\phi}{\partial y}\hat{j}+\dfrac{\partial\phi}{\partial z}\hat{k}$✔️
$\left(\dfrac{\partial^2\phi}{\partial x^2}+\dfrac{\partial^2\phi}{\partial y^2}+\dfrac{\partial^2\phi}{\partial z^2}\right)$
$\phi\left(\hat{i}+\hat{j}+\hat{k}\right)$

Correct Answer Logic:

$\nabla\phi=\text{grad}\,\phi=\dfrac{\partial\phi}{\partial x}\hat{i}+\dfrac{\partial\phi}{\partial y}\hat{j}+\dfrac{\partial\phi}{\partial z}\hat{k}$. It is a vector field giving the direction and rate of maximum increase of the scalar field $\phi$.

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General Knowledge QUESTION #2617

Question 3056

The BIOS (Basic Input Output Services) performs which of the following functions when a computer is first switched on?

It connects the computer to the internet automatically
It converts electrical power from the wall outlet into computer-usable power
It helps initialize the hardware in the computer and gets the operating system up and running✔️
It stores all user documents and settings permanently

Correct Answer Logic:

BIOS (Basic Input Output Services) is software stored on a ROM chip that helps initialize the hardware in our computer and gets our operating system up and running. It is the first software that runs when you press the power button.

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Security Measures to Maintain Law and Order QUESTION #914

Question 3057

The legal definition of an "Airport" as per Section 2 includes:

Only the terminal
All areas defined in the Civil Aviation Ordinance✔️
Only the runway
Only the control tower

Correct Answer Logic:

Section 2(b) refers to the definition provided in the Civil Aviation Ordinance, 1960.

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English QUESTION #4453

Question 3058

Which of the following sentences is correct?

Despite of her sheer hard work, she failed.
Though I am sick but I will go to office.
Me and my friend often visit Islamabad.
None of these✔️

Correct Answer Logic:

All are incorrect: A should be 'Despite' (no 'of'), B has redundant 'but', and C should be 'My friend and I'.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3219

Question 3059

Which hormone is responsible for the development of male secondary sex characteristics?

Progesterone
Aldosterone
Testosterone✔️
Prolactin

Correct Answer Logic:

Testosterone promotes muscle growth, voice deepening, and hair growth.

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Mechanical Engineering QUESTION #2448

Question 3060

The centrifugal force $F_0$ generated by an unbalanced rotating mass $m_0$ at eccentricity $r$ rotating at speed $p$ (rad/s) is:

$F_0 = m_0 r p$
$F_0 = m_0 r p^2$✔️
$F_0 = m_0 r^2 p$
$F_0 = m_0 g r$

Correct Answer Logic:

The centrifugal force from an unbalanced rotating mass: $F_0=m_0 r p^2$, where $m_0$ is the unbalance mass, $r$ is the eccentricity, and $p$ is the angular speed.

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