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The Constitution of Pakistan QUESTION #9358

Which of the following accurately describes the Review Board for preventive detention under a Federal law?

Appointed by the Chief Justice of the High Court, comprising three judges
Appointed by the Chief Justice of Pakistan/Supreme Court, comprising a Chairman and two others who are or have been Judges of the Supreme Court or High Court✔️
Appointed by the President, comprising senior bureaucrats
Appointed by the Federal Government in consultation with the Chief Justice

Correct Answer Logic:

Article 10, Explanation I(i) provides that the Review Board for preventive detention under Federal law is 'appointed by the Chief Justice of Supreme Court of Pakistan and consisting of a Chairman and two other persons, each of whom is or has been a Judge of the Supreme Court or a High Court.' The insertion of 'Supreme Court of' was added by the 27th Amendment.

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Boilers Mechanical Engineering QUESTION #2525

Question 2

Conservation of linear momentum applies to a system of particles when:

Kinetic energy is conserved
The net external force on the system is zero: $\sum\mathbf{F}_{ext}=0$✔️
All particles move with the same velocity
The system has no angular momentum

Correct Answer Logic:

Linear momentum of a system $\mathbf{G}=\sum m_i\mathbf{v}_i$ satisfies $\frac{d\mathbf{G}}{dt}=\sum\mathbf{F}_{ext}$. When $\sum\mathbf{F}_{ext}=0$, $\mathbf{G}$ is conserved.

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Math Physics Chemistry Biology QUESTION #4330

Question 3

According to the Lock and Key model, the active site is regarded as:

Rigid and specific✔️
Flexible and specific
Rigid and non-specific
Flexible and non-specific

Correct Answer Logic:

The Lock and Key model (Fischer, 1894) proposes that the enzyme active site has a fixed, rigid shape that is exactly complementary to a specific substrate — rigid and specific.

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General Abilities QUESTION #4591

Question 4

Simplify: $7y - 2y + 4y$

$3y$
$9y$✔️
$14y$
$5y$

Correct Answer Logic:

Combine like terms: $7y - 2y + 4y = (7-2+4)y = 9y$

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5706

Question 5

The term 'Synergism' in pharmacology refers to:

$1 + 1 < 2$
$1 + 1 = 2$
$1 + 1 > 2$✔️
$1 - 1 = 0$

Correct Answer Logic:

Synergism occurs when the combined effect of two drugs is greater than the sum of their individual effects.

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Physics QUESTION #1027

Question 6

The current passing through the battery in the given circuit (5V source with complex resistor network including $1.5\Omega, 5\Omega, 2.5\Omega, 5.5\Omega, 6\Omega, 3\Omega, 1.5\Omega, \frac{1}{3}\Omega$):

2.5 A
1.5 A
2.0 A✔️
0.5 A

Correct Answer Logic:

Analysing the circuit by combining resistors: the network simplifies to a total resistance of $2.5\ \Omega$ across the 5V battery. Current $= \frac{5}{2.5} = 2.0\ \text{A}$.

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General Knowledge QUESTION #8651

Question 7

The Big Bang theory is related to the origin of which of the following?

Origin of the universe✔️
Origin of species
Atomic bomb
Rock music

Correct Answer Logic:

The Big Bang theory explains the origin of the universe.

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Urdu QUESTION #5137

Question 8

شبلی نعمانی کا مزار کہاں ہے؟

شکرگڑھ
اعظم گڑھ✔️
قاسم گڑھ
ان میں سے کوئی نہیں

Correct Answer Logic:

مولانا شبلی نعمانی کا مزار ہندوستان کے اعظم گڑھ میں واقع ہے۔

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Boilers Mechanical Engineering QUESTION #4044

Question 9

'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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Chemistry QUESTION #467

Question 10

__________ is necessary for development of leaves and it tends to accumulate in leaves and bark.

NO?
Calcium✔️
Gypsum
Nitrogen

Correct Answer Logic:

Calcium accumulates in leaves and bark

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The Constitution of Pakistan QUESTION #9379

Question 11

Under Article 38(f) as substituted by the 26th Amendment 2024, the State must eliminate riba completely before:

31 December 2030
1 January 2028✔️
1 January 2030
A date to be determined by Parliament

Correct Answer Logic:

Article 38(f), substituted by the Constitution (Twenty-sixth Amendment) Act, 2024, now reads: 'eliminate riba completely before the first day of January, two thousand twenty-eight.' This sets a specific constitutional deadline, making it justiciable as a Principle of Policy goal with an express date.

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English QUESTION #2778

Question 12

What does the PHRASAL VERB 'GIVE UP' mean? (Note: A phrasal verb combines a verb with a preposition or adverb to create a new meaning)

To donate something
To surrender or quit✔️
To present something formally
To lift something high

Correct Answer Logic:

'Give up' is a phrasal verb meaning to stop trying to do something or to surrender. The individual words 'give' and 'up' don't convey this meaning separately. Example: 'She gave up smoking last year.'

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Nursing QUESTION #9268

Question 13

A nurse is assessing a child for signs of meningitis. She flexes the child's neck and observes involuntary flexion of the knees and hips. She also notes that with the hip and knee flexed at 90°, the knee cannot be fully extended. These signs are named:

Brudzinski's sign positive; Kernig's sign positive✔️
Kernig's sign positive; Brudzinski's sign positive
Romberg's sign; Babinski's sign
Cushing's triad; Battle's sign

Correct Answer Logic:

Meningeal Irritation Signs:

Sign	Test	Positive Finding
Brudzinski's Sign	Passive neck flexion (supine patient)	Involuntary flexion of hips and knees
Kernig's Sign	Hip and knee flexed to 90°; attempt to extend knee	Resistance/pain — cannot fully extend (positive if <135°)
Nuchal rigidity	Passive neck flexion	Resistance; chin cannot touch chest

The question describes Brudzinski's sign first (neck flexion → knee/hip flex), then Kernig's sign (hip-knee 90° → cannot extend knee).

Meningitis management (bacterial):

IV Ceftriaxone $100\,\text{mg/kg/day}$ in 2 divided doses
Dexamethasone $0.15\,\text{mg/kg}$ IV every 6 hrs × 4 days (reduces inflammation, hearing loss)
Isolate patient for first 24 hrs of antibiotics

CSF findings in bacterial meningitis: Turbid, $\uparrow$ WBC (neutrophils), $\downarrow$ glucose, $\uparrow$ protein, positive culture/Gram stain.

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CISA QUESTION #1777

Question 14

Which computer-assisted audit tool (CAAT) is specifically engineered to run simulated transactions alongside real transactions in a live system?

Continuous and intermittent simulation
Embedded program audit hooks
Embedded audit module✔️
Online event monitor

Correct Answer Logic:

An embedded audit module (EAM) is embedded directly within the application and processes dummy transactions concurrently with genuine ones. Its purpose is to verify that the production system is operating correctly without disrupting normal transaction processing.

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Mathematics QUESTION #1319

Question 15

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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Physics QUESTION #4391

Question 16

If $P$ is the momentum of an object and $m$ is its mass, then its kinetic energy is:

$\dfrac{P}{2m}$
$\dfrac{P^2}{2m}$✔️
$\dfrac{1}{2}Pm^2$
$\dfrac{1}{2}P^2m$

Correct Answer Logic:

$KE = \dfrac{1}{2}mv^2$. Since $P = mv$, we have $v = \dfrac{P}{m}$. Substituting: $KE = \dfrac{1}{2}m\left(\dfrac{P}{m}\right)^2 = \dfrac{1}{2}m \cdot \dfrac{P^2}{m^2} = \dfrac{P^2}{2m}$.

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Physics QUESTION #7311

Question 17

A particle moves along a straight line with constant acceleration, changing speed from $10\text{ m/s}$ to $20\text{ m/s}$ while covering $135\text{ m}$. The time taken is:

12 s
9 s✔️
10 s
1.8 s

Correct Answer Logic:

Using $v^2 - u^2 = 2as$: $(20)^2 - (10)^2 = 2a(135) \Rightarrow 300 = 270a \Rightarrow a = \dfrac{10}{9}\text{ m/s}^2$

Using $v = u + at$: $20 = 10 + \dfrac{10}{9}t \Rightarrow t = \mathbf{9\text{ s}}$

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Math Physics Chemistry Biology QUESTION #4253

Question 18

Chemicals that stimulate the olfactory receptors enter the nasal cavity in the form of ____________.

solid
liquid
gas✔️
plasma

Correct Answer Logic:

Odorant chemicals enter as gases.

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Ability / HR / Governance / Special Education QUESTION #1913

Question 19

Under Rule 5(6) which officers are permitted to take initiative in approaching a Minister on official business?

Officers of BPS-17 and above
Section Officers and above
Only a Secretary Additional Secretary or Joint Secretary✔️
Deputy Secretary and above

Correct Answer Logic:

Rule 5(6) restricts the initiative of approaching a Minister to Secretaries Additional Secretaries and Joint Secretaries only. An Additional/Joint Secretary must also communicate the points made to the Secretary at the first opportunity.

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Electrical Engineering QUESTION #2172

Question 20

For a silicon PN junction at $T=300\,\text{K}$ with $N_A = 10^{17}\,\text{cm}^{-3}$, $N_D = 10^{15}\,\text{cm}^{-3}$, $n_i = 1.5\times10^{10}\,\text{cm}^{-3}$, the built-in potential $V_{bi} = \frac{kT}{q}\ln\!\left(\frac{N_AN_D}{n_i^2}\right)$ is approximately:

$0.694\,\text{V}$✔️
$0.026\,\text{V}$
$1.12\,\text{V}$
$0.3\,\text{V}$

Correct Answer Logic:

$V_{bi} = 0.026\ln\!\left(\frac{10^{32}}{(1.5\times10^{10})^2}\right) = 0.026\ln(4.44\times10^{11}) = 0.026 \times 26.7 \approx 0.694\,\text{V}$.

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