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Geology QUESTION #10641

The primary driving mechanism behind the drifting (movement) of tectonic plates and continents is:

Volcanic eruptions at the surface
Mantle convection and tectonic plate interactions✔️
Folding and faulting of surface rocks
Changes in surface landform geometry

Correct Answer Logic:

Plate tectonics — driven primarily by mantle convection currents (heat-driven flow in the viscous mantle), ridge push (elevated mid-ocean ridges push plates apart), and slab pull (dense subducting slabs drag plates toward trenches) — is the mechanism responsible for continental drift. Wegener proposed continental drift in 1912; the mechanism was later explained by seafloor spreading (Hess, 1960) and plate tectonic theory.

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MBBS QUESTION #10229

Question 2

A patient with chronic kidney disease develops normocytic normochromic anemia. The most direct physiological explanation is:

Reduced erythropoietin production by damaged renal peritubular interstitial cells✔️
Increased splenic sequestration and destruction of red cells
Vitamin B12 malabsorption
Chronic blood loss from the gastrointestinal tract

Correct Answer Logic:

Progressive nephron loss in chronic kidney disease reduces the renal mass responsible for erythropoietin synthesis, leading to inadequate erythropoietic stimulation and normocytic anemia — correctable with recombinant erythropoietin therapy.

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Law QUESTION #9519

Question 3

A plaintiff A obtains an ex parte decree against B for delivery of immoveable property. B applies under Order IX Rule 13 to set aside the ex parte decree on the ground that summons was not duly served. The Court sets aside the decree. A contends that acts done in furtherance of the ex parte decree (including possession taken by A) should not be disturbed. What is the correct position?

On setting aside the ex parte decree, the Court has power to order restitution under Section 144 CPC; A must restore the property to B since restitution is the logical consequence of setting aside the decree✔️
B gets no restitution until fresh proceedings are completed
The setting aside operates only prospectively, not retrospectively
A retains possession since the ex parte decree, once acted upon, cannot be reversed

Correct Answer Logic:

Section 144 CPC provides for restitution: where a decree or order has been varied or reversed in any appeal, review, or other proceeding, the Court which passed the decree shall cause the party to be restored to the position he would have occupied had the decree or order not been passed. On setting aside the ex parte decree, A must restore possession to B.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3021

Question 4

What is 'Levigation' in ointment preparation?

Heating the base
Reducing particle size by grinding with a small amount of liquid✔️
Mixing with a mechanical stirrer
Adding a preservative

Correct Answer Logic:

Levigation involves grinding a powder with a small amount of a 'levigating agent' (like mineral oil) to form a smooth paste before mixing with the base.

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Islamic Studies QUESTION #340

Question 5

Which Caliph was the first to set the punishment for drinking at eighty lashes?

Hazrat Ali
Hazrat Usman
Hazrat Umar✔️
Hazrat Abu Bakr

Correct Answer Logic:

Hazrat Umar (RA) increased the punishment from 40 to 80 lashes after consultation with the Sahaba.

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Maths QUESTION #7987

Question 6

The daily wage is increased by 25% and Adil now earns Rs. 25 per day. What was his daily wage before the increase?

Rs. 25
Rs. 20✔️
Rs. 30
None of these

Correct Answer Logic:

Let original wage $= x$.
$x \times 1.25 = 25 \Rightarrow x = \dfrac{25}{1.25} = 20$
Original daily wage $= \text{Rs. } 20$

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Civil Procedure QUESTION #3751

Question 7

Which Amendment to the U.S. Constitution abolished slavery?

Twelfth.
Thirteenth.✔️
Fourteenth.
Fifteenth.

Correct Answer Logic:

The 13th Amendment (1865) abolished slavery and involuntary servitude, except as punishment for a crime.

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Mathematics QUESTION #978

Question 8

Let $\alpha_\theta$ and $\beta_\theta$ be the distinct roots of $2x^2+(\cos\theta)x-1=0,\ \theta\in(0,2\pi)$. If $m$ and $M$ are the minimum and maximum values of $\alpha_\theta^4+\beta_\theta^4$, then $16(M+m)$ equals:

24
25✔️
17
27

Correct Answer Logic:

By Vieta's: $\alpha+\beta=-\frac{\cos\theta}{2}$, $\alpha\beta=-\frac{1}{2}$. Then $\alpha^2+\beta^2=(\alpha+\beta)^2-2\alpha\beta=\frac{\cos^2\theta}{4}+1$. And $\alpha^4+\beta^4=(\alpha^2+\beta^2)^2-2(\alpha\beta)^2=\left(\frac{\cos^2\theta}{4}+1\right)^2-\frac{1}{2}$. Let $u=\cos^2\theta\in[0,1]$. Max at $u=1$: $M=\frac{25}{16}-\frac{1}{2}=\frac{17}{16}$. Min at $u=0$: $m=1-\frac{1}{2}=\frac{1}{2}$. So $16(M+m)=16\cdot\frac{25}{16}=25$.

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Civil Engineering QUESTION #2130

Question 9

The Biochemical Oxygen Demand (BOD) test measures:

The total dissolved oxygen concentration in a water sample
The amount of dissolved oxygen consumed by biological organisms in oxidizing organic matter in a water sample at 20°C over 5 days (BOD₅) — used as an indirect measure of organic pollution load in wastewater✔️
The chemical oxygen demand using potassium dichromate oxidation
The concentration of pathogenic bacteria in sewage effluent

Correct Answer Logic:

BOD₅ (standard 5-day, 20°C test) measures DO consumed by aerobic microorganisms decomposing carbonaceous organic matter in a diluted, incubated sample. It is the most widely used parameter for characterizing wastewater strength and assessing treatment plant performance. BOD₅ captures ~60–70% of ultimate BOD. Typical BOD₅ values: raw domestic sewage 200–300 mg/L; treated effluent <20 mg/L (secondary); <10 mg/L (tertiary).

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Maths QUESTION #2844

Question 10

A train travels 360 km in 4 hours. What is its speed in km/h?

80 km/h
90 km/h✔️
100 km/h
120 km/h

Correct Answer Logic:

Speed $= \dfrac{\text{Distance}}{\text{Time}} = \dfrac{360}{4} = 90$ km/h.

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Nursing QUESTION #9258

Question 11

A 4-year-old child is admitted with generalized tonic-clonic seizures lasting 8 minutes. Temperature is 39.2°C. This is the child's first febrile seizure. Which statement about management is MOST accurate?

Immediate IV phenobarbitone loading is required
Lumbar puncture is mandatory in all first febrile seizures
Rectal diazepam 0.5 mg/kg is the first-line agent for active prolonged febrile seizures; simple febrile seizures require antipyretics and reassurance✔️
Long-term antiepileptic therapy should be started immediately

Correct Answer Logic:

Febrile Seizures — most common seizure type in children (6 months – 5 years):

Feature	Simple	Complex
Duration	<15 minutes	≥15 minutes
Type	Generalized	Focal or generalized
Recurrence in 24 hr	No	Yes

This child had an 8-minute seizure — technically simple (but approaching complex threshold).

Management:

Active seizure (>5 min): Rectal/IV diazepam $0.5\,\text{mg/kg}$ rectal or $0.3\,\text{mg/kg}$ IV (max 10 mg)
Antipyretics: Paracetamol $15\,\text{mg/kg}$ — reduces fever (does NOT prevent recurrence)
Reassurance: Risk of epilepsy <2–3% after simple febrile seizure
Long-term AEDs: NOT recommended for simple febrile seizures

Lumbar puncture indications in febrile seizure:

Age <12 months (mandatory)
12–18 months (strongly consider)
Signs of meningism (neck stiffness, positive Kernig/Brudzinski)
Post-ictal state >1 hour
Not mandatory in all first febrile seizures

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MCQs Section QUESTION #5095

Question 12

علی وجودی، طور معنی، کلامِ جنوبی وغیرہ کس تاریخی ناول کے معروف کردار ہیں؟

امربیل
فردوسِ بریں✔️
راجہ گدھ
ان میں سے کوئی نہیں

Correct Answer Logic:

یہ کردار عبدالحلیم شرر کے تاریخی ناول 'فردوسِ بریں' سے ہیں۔

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Civil Engineering QUESTION #2126

Question 13

The hydraulic grade line (HGL) and energy grade line (EGL) in pipe flow are related such that:

HGL is always above EGL by the velocity head
EGL is always above or equal to HGL by the velocity head $\dfrac{V^2}{2g}$ — the vertical distance between EGL and HGL equals the velocity head at any cross-section✔️
HGL and EGL coincide for all flows
EGL slopes upward in the direction of flow while HGL slopes downward

Correct Answer Logic:

EGL represents total energy head $= \dfrac{p}{\rho g} + z + \dfrac{V^2}{2g}$. HGL represents piezometric head $= \dfrac{p}{\rho g} + z$. The difference is the velocity head: $EGL - HGL = \dfrac{V^2}{2g}$. Both slope downward in flow direction (energy loss). EGL is always above HGL (except at stagnation). When HGL falls below pipe centerline, pressure becomes sub-atmospheric — risk of cavitation and column separation.

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Education QUESTION #11690

Question 14

For a school counseling service to be truly effective, the school administrator should primarily:

Check the physical facilities of the guidance office
Hire a complete counseling staff
Familiarize himself with the nature, goals, and principles of guidance✔️
None of these

Correct Answer Logic:

The most important step for an administrator to make counseling effective is to understand the nature, goals, and principles of guidance himself. Without this understanding, the administrator cannot properly support, integrate, or advocate for counseling within the school. Facilities and staffing are secondary to this foundational knowledge.

Correct Answer: C.

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Education QUESTION #11680

Question 15

What does the Null Hypothesis state in the context of statistical research?

The difference between two parametric means is zero
The difference is due to sampling error
Both A and B✔️
None of these

Correct Answer Logic:

The Null Hypothesis (H&sub0;) asserts that there is no significant difference between groups or that any observed difference is due to chance (sampling error). In formal statistical terms, it states that the difference between population means is zero (A), and that any observed difference results from sampling variability (B). Both A and B together define it correctly.

Correct Answer: C — Both A and B.

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Maths QUESTION #7656

Question 16

If $\frac{2}{3}$ of A = 75% of B = 0.6 of C, then A:B:C is:

$2 : 3 : 3$
$3 : 4 : 5$
$4 : 5 : 6$
None of these✔️

Correct Answer Logic:

Let $\frac{2}{3}A = \frac{75}{100}B = 0.6C = k$. Then $A = \frac{3k}{2}$, $B = \frac{100k}{75} = \frac{4k}{3}$, $C = \frac{k}{0.6} = \frac{5k}{3}$. Finding LCM and simplifying: multiply by 6 to get $A = 9k$, $B = 8k$, $C = 10k$. But this doesn't match options. Recalculating: ratio is $9:8:10$, which is 'None of these'.

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Planning QUESTION #4946

Question 17

Which planning legislation was a landmark in UK planning history?

Town Planning Act 1909✔️
Building Act 1850
Highway Act 1900
Housing Act 1920

Correct Answer Logic:

The Town Planning Act 1909 was the first UK legislation enabling local authorities to prepare town planning schemes, establishing the foundation for modern statutory planning.

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