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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3286

Question 3041

'Dry Heat' sterilization in a Hot Air Oven typically requires what temperature and time?

$121^\circ\text{C}$ for $15$ min
$160^\circ\text{C}$ for $2$ hours✔️
$100^\circ\text{C}$ for $30$ min
$72^\circ\text{C}$ for $15$ sec

Correct Answer Logic:

Dry heat is less efficient than moist heat and requires higher temperatures for longer periods.

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General Knowledge QUESTION #4789

Question 3042

Who was the first Viceroy of India?

Lord Ripon
Lord Canning✔️
Lord Curzon
Lord Mountbatten

Correct Answer Logic:

Lord Canning (Charles John Canning) became the first Viceroy of India in 1858 when the British Crown took over governance from the East India Company following the 1857 uprising.

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Biology QUESTION #7239

Question 3043

In a moss, the sporophyte:

Arises from a spore produced by the gametophyte
Manufactures food for itself as well as for the gametophyte
Is partially parasitic on the gametophyte✔️
Produces gametes that give rise to the gametophyte

Correct Answer Logic:

The moss sporophyte is partially parasitic on the gametophyte. It lacks true roots and draws water and nutrients from the gametophyte via a foot. It does have chlorophyll and performs some photosynthesis but cannot fully sustain itself — hence partially parasitic (semi-dependent).

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Pakistan Affairs QUESTION #161

Question 3044

What was the result of the authority granted to the Governor General by the 1935 Act?

It limited the role to ceremonial duties
It established the Governor General as the epicentre of authority✔️
It decentralised power to provinces
It abolished the office

Correct Answer Logic:

The Act granted 'Special Responsibilities' and discretionary powers to the Governor General.

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Constitutional Law QUESTION #5825

Question 3045

A federal agency publishes a rule that prohibits the use of certain pesticides. A chemical company sues, claiming that Congress did not give the agency the power to regulate pesticides. The statute says the agency may 'make such rules as are necessary to protect the public health.' Is the statute constitutional?

No, because it violates the Nondelegation Doctrine.
No, because only Congress can create rules with the force of law.
Yes, because Congress provided an 'intelligible principle' for the agency to follow.✔️
Yes, because the President has the inherent power to protect public health.

Correct Answer Logic:

The 'Nondelegation Doctrine' prohibits Congress from delegating its legislative power to agencies. However, the Supreme Court has set a very low bar: as long as Congress provides an 'intelligible principle' (like 'protecting public health'), the delegation is constitutional.

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Boilers Mechanical Engineering QUESTION #2528

Question 3046

For a conservative force field, which condition must hold?

Force depends only on time
The work done by the force is path-independent and $\mathbf{F}=-\nabla V$ where $V$ is potential energy✔️
The force is always perpendicular to velocity
The force is always constant in magnitude

Correct Answer Logic:

A force is conservative if the work done is path-independent. This is expressed as $\mathbf{F}=-\nabla V$, and energy conservation $T+V=\text{const}$ holds when all forces are conservative.

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Electrical Engineering QUESTION #2177

Question 3047

A three-phase induction motor runs at $1440\,\text{rpm}$ on a $50\,\text{Hz}$ supply. The number of poles and percent slip are respectively:

4 poles, $4\%$✔️
6 poles, $4\%$
4 poles, $6\%$
8 poles, $4\%$

Correct Answer Logic:

Synchronous speed for $P = 4$: $N_s = \frac{120\times50}{4} = 1500\,\text{rpm}$. Slip $s = \frac{1500-1440}{1500}\times100 = 4\%$. For $P=6$: $N_s=1000\,\text{rpm}$, which would give negative slip — physically impossible.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3180

Question 3048

The 'Intrinsic Pathway' of blood coagulation is triggered by:

Tissue trauma
Contact with collagen/damaged vessel walls✔️
Sunlight
Stomach acid

Correct Answer Logic:

The intrinsic pathway begins within the blood itself when factor XII is activated by contact with damaged surfaces.

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Egnlish QUESTION #694

Question 3049

The "Wessex" novels were written by:

Charles Dickens
Thomas Hardy✔️
George Eliot
None of these

Correct Answer Logic:

Thomas Hardy set most of his major novels in the semi-fictional region of Wessex.

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Urdu QUESTION #1407

Question 3050

اردو کی وہ کون سی کتاب ہے جس میں عربی فارسی کا ایک بھی لفظ شامل نہ ہو؟

مہر نیم روز
فسانۂ عجائب
پدماوت
رانی کیتکی کی کہانی✔️

Correct Answer Logic:

''رانی کیتکی کی کہانی'' منشی انشاء اللہ خاں انشا کی وہ مشہور تحریر ہے جس میں انہوں نے جان بوجھ کر صرف خالص ہندی (کھڑی بولی) کے الفاظ استعمال کیے اور عربی فارسی کا کوئی لفظ نہیں آنے دیا۔ یہ اردو نثر کا ایک منفرد تجربہ ہے۔

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English QUESTION #2731

Question 3051

Choose the correct PRESENT PERFECT form: 'I ___ this novel three times.'

read
reads
am reading
have read✔️

Correct Answer Logic:

The present perfect tense uses have/has + past participle. It expresses an action that has relevance to the present. 'Have read' is correct here.

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Boilers Mechanical Engineering QUESTION #2403

Question 3052

The Froude number $Fr$ is the ratio of inertial forces to gravity forces, expressed as:

$Fr = V / \sqrt{gL}$ — ratio of flow velocity to wave speed✔️
$Fr = \rho V^2 / (gL)$
$Fr = V \sqrt{L/g}$
$Fr = \sqrt{gL}/V$

Correct Answer Logic:

Froude number: $Fr=V/\sqrt{gL}$. When $Fr<1$: subcritical flow; $Fr>1$: supercritical flow; $Fr=1$: critical flow.

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Urdu QUESTION #5141

Question 3053

جوّاری کس کی کہانی ہے؟

غلام عباس✔️
احمد ندیم قاسمی
سلیم اختر
ان میں سے کوئی نہیں

Correct Answer Logic:

جوّاری غلام عباس کا مشہور افسانہ ہے۔

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English QUESTION #8485

Question 3054

Select the word SIMILAR in meaning to: CENSURE

Purify
Disapprove✔️
Edit
Uncertain

Correct Answer Logic:

Censure means to express strong disapproval.

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Nursing QUESTION #9287

Question 3055

The Rule of Nines is used in burn assessment. A patient has burns covering the entire right arm and anterior trunk. What percentage of TBSA (Total Body Surface Area) is burned?

27%
✔️
36%
18%
45%

Correct Answer Logic:

The Rule of Nines for adult burn assessment:

Body Region	TBSA %
Head and neck	9%
Each upper limb (arm)	9%
Anterior trunk	18%
Posterior trunk	18%
Each lower limb (leg)	18%
Perineum/genitalia	1%
Total	100%

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General Abilities QUESTION #7992

Question 3056

One billion is equal to:

100 Lacs
100 Crores✔️
100 Millions
100 Thousands

Correct Answer Logic:

1 billion $= 1{,}000{,}000{,}000 = 100 \times 10{,}000{,}000 = 100$ Crores (in South Asian counting system).

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Nursing QUESTION #9238

Question 3057

A patient develops Ventricular Fibrillation (VF) in the ICU. According to ACLS 2020 guidelines, what is the CORRECT sequence of management?

Defibrillate 360J → Amiodarone 300mg → CPR 2 min → Epinephrine 1mg
CPR 2 min → Defibrillate 200J biphasic → Epinephrine 1mg → CPR 2 min → Amiodarone if VF persists
Defibrillate immediately → CPR 2 min → Epinephrine 1mg IV → CPR 2 min → Amiodarone 300mg if VF/pVT persists✔️
Epinephrine 1mg → CPR 5 min → Defibrillate 360J → Amiodarone 150mg

Correct Answer Logic:

Correct Answer: C — ACLS VF/pulseless VT Algorithm (2020)

ACLS Shockable Rhythm (VF/pVT) Algorithm:

Defibrillate immediately (biphasic 120–200J; monophasic 360J)
CPR 2 minutes (high-quality: 100–120 compressions/min, depth $5-6 \text{ cm}$)
Check rhythm — if still VF/pVT:
Epinephrine 1 mg IV/IO every 3–5 minutes
Defibrillate again
CPR 2 minutes
If VF/pVT persists: Amiodarone 300 mg IV (second dose: 150 mg) OR Lidocaine

Key points:

Minimize interruptions in CPR (pause $< 10$ seconds for shocks)
Treat reversible causes: 5 H's and 5 T's (Hypoxia, Hypovolemia, H$^+$ acidosis, Hypo/Hyperkalemia, Hypothermia; Tension pneumothorax, Tamponade, Toxins, Thrombosis-PE, Thrombosis-coronary)
Epinephrine: given after first or second defibrillation attempt, then every 3–5 min

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Civil Procedure QUESTION #3752

Question 3058

O conveys 'to A for life, then to B and his heirs.' What interest does B have?

A contingent remainder.
A vested remainder.✔️
A possibility of reverter.
An executory interest.

Correct Answer Logic:

B's interest is a vested remainder because B is an ascertained person and there is no condition precedent other than the natural termination of A's life estate.

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Chemistry QUESTION #7200

Question 3059

A healthy human adult is composed of Oxygen (61.4%), Carbon (22.9%), Hydrogen (10.0%), and Nitrogen (2.6%) by mass. Calculate the weight gain for a $75 \text{ kg}$ individual if all $^1H$ atoms were replaced by $^2H$ atoms.

$37.5 \text{ kg}$
$7.5 \text{ kg}$✔️
$10 \text{ kg}$
$15 \text{ kg}$

Correct Answer Logic:

Total mass of hydrogen in a $75 \text{ kg}$ person = $10\%$ of $75 = 7.5 \text{ kg}$.
$^1H$ has a mass of approximately $1 \text{ u}$, while $^2H$ (Deuterium) has a mass of $2 \text{ u}$.
Replacing all $^1H$ with $^2H$ effectively doubles the mass of the hydrogen component.
Weight gain = New mass - Original mass = $15 \text{ kg} - 7.5 \text{ kg} = 7.5 \text{ kg}$.

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Agronomy QUESTION #2064

Question 3060

Zinc deficiency, the most widespread micronutrient deficiency in Pakistan and South Asia, is characterized by:

Dark green, crinkled older leaves with necrotic margins
Interveinal chlorosis and stunting of older leaves due to Zn mobility
Stunted young leaves, shortened internodes (little leaf/khaira disease in rice), interveinal chlorosis on young leaves, and delayed maturity — due to Zn's role in auxin synthesis and enzyme activation✔️
Pale yellow coloration of the entire plant with early senescence

Correct Answer Logic:

Zn deficiency causes little leaf/rosette in fruit trees, khaira disease in rice, and white bud in maize. Young leaves are affected first (Zn is relatively immobile in phloem). Zn activates >300 enzymes, is required for IAA synthesis, RNA polymerase, and ribosome structure. ZnSO₄ (21% Zn) applied at 25 kg/ha corrects deficiency.

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