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Physics and Math QUESTION #743

Two resistances of 6Ω each are in parallel and third of 3Ω is connected in series:

10/3 Ω
15 Ω
9 Ω✔️
6 Ω

Correct Answer Logic:

Parallel combination of two 6Ω: R_p = (6x6)/(6+6) = 3Ω. Series with 3Ω: R_total = 3+3 = 6Ω. Answer is 6Ω but the marked answer in paper is 9Ω (C).

Uploaded by: Fani Warraich

Physics and Math QUESTION #78

Question 2802

Asim is now three times as old as Irfan. After 10 years, Asim will be twice as old as Irfan. Asim’s at this time is:

40
30✔️
20
10

Correct Answer Logic:

Asim’s current age = 30 years.

Uploaded by: Fani Warraich

Biology QUESTION #530

Question 2803

The total inside capacity of lungs of adult human beings when fully inflated is

5 ml✔️
50 ml
500 ml
5000 ml

Correct Answer Logic:

Total lung capacity is about 5-6 liters (5000 ml)

Uploaded by: Fani Warraich

Mechanical Engineering QUESTION #2421

Question 2804

For a composite plane wall with convection on both sides, the total thermal resistance is:

$R_{total} = h_1 A + \sum R_i + h_2 A$
$R_{total} = \frac{1}{h_1 A} + \sum\frac{L_i}{k_i A} + \frac{1}{h_2 A}$✔️
$R_{total} = \frac{1}{h_1 h_2 A^2}$
$R_{total} = \frac{k_1+k_2}{A(h_1+h_2)}$

Correct Answer Logic:

For a composite wall with convection on both sides, all resistances are in series: $R_{total}=\frac{1}{h_1A}+\frac{L_1}{k_1A}+\frac{L_2}{k_2A}+\cdots+\frac{1}{h_2A}$.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3350

Question 2805

'Diatoms' are a type of:

Fungi
Algae with silica cell walls✔️
Virus
Protozoa

Correct Answer Logic:

Their remains (diatomaceous earth) are used in filters.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3250

Question 2806

'Bilirubin' is a waste product derived from the breakdown of:

Muscle protein
Hemoglobin✔️
Fatty acids
DNA

Correct Answer Logic:

When RBCs are destroyed, the heme part is converted to bilirubin.

Uploaded by: Fani Warraich

Mechanical Engineering QUESTION #2426

Question 2807

The critical insulation radius for a cylindrical surface with insulation of conductivity $k_{ins}$ and outer convection coefficient $h$ is:

$r_{cr} = k_{ins} \cdot h$
$r_{cr} = h / k_{ins}$
$r_{cr} = k_{ins} / h$✔️
$r_{cr} = \sqrt{k_{ins}/h}$

Correct Answer Logic:

Critical insulation radius: $r_{cr}=k_{ins}/h$. Adding insulation initially INCREASES heat loss if the pipe radius \(r_1

Uploaded by: Fani Warraich

Accounting Finance and Punjab Sales Tax on Services QUESTION #2571

Question 2808

Under section 52(2)(b), a notice for recovery of a refund that was not due (obtained through fraud, forgery, false documents etc.) must be served within:

Three years from the date of receipt of refund
Five years from the end of the financial year in which the refund was received✔️
Eight years of the relevant tax period
Ten years from the date of erroneous refund

Correct Answer Logic:

Section 52(2)(b) as amended by Punjab Finance Act, 2022 provides that the show-cause notice for recovery of wrongly obtained refund must be issued within FIVE YEARS FROM THE END OF THE FINANCIAL YEAR IN WHICH THE REFUND WAS RECEIVED.

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Urdu QUESTION #5130

Question 2809

دل رکھنا کا کیا مطلب ہے؟

کسی کو ناراض کرنا
کسی کی دل آزاری کرنا
دل کی بیماری کا شکار ہونا
تسلی دینا✔️

Correct Answer Logic:

دل رکھنا محاورے کا مطلب ہے کسی کی تسلی کرنا یا خوش کرنا۔

Uploaded by: Fani Warraich

Geography QUESTION #1240

Question 2810

The coarse particles or solidified lava ejected from a volcano are called volcanic:

Bombs✔️
Ash
Dust
None of these

Correct Answer Logic:

Volcanic bombs are large, coarse fragments of solidified or partially solidified lava ejected from a volcano during an eruption. They are typically larger than 64 mm in diameter and acquire a rounded or aerodynamic shape while in flight. Volcanic ash refers to tiny particles (less than 2 mm), and dust refers to the finest particles.

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CISA QUESTION #1783

Question 2811

What is the primary function of an audit charter?

To formally engage external auditors for an engagement
To delegate responsibility, authority, and accountability for auditing✔️
To authorize the formation of an audit committee
To provide a detailed step-by-step audit plan

Correct Answer Logic:

The audit charter exists to formally grant the auditor the right to conduct audits. It delegates responsibility, authority, and accountability to the audit function. It is the foundational document that legitimizes the auditor's access and activities within the organization.

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Others section QUESTION #4705

Question 2812

Which organization is considered the world's oldest international human rights body?

Amnesty International
Freedom House
Anti-Slavery International✔️
Human Rights Watch

Correct Answer Logic:

Anti-Slavery International, founded in 1839, is the world's oldest international human rights organization, predating Amnesty International (1961) and Freedom House (1941).

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City and Regional Planning QUESTION #4997

Question 2813

What does 'primate city' phenomenon indicate in urban systems?

Equal distribution of city sizes
Dominance of one disproportionately large city✔️
Multiple cities of similar size
Declining urban population

Correct Answer Logic:

A primate city is disproportionately larger (typically 2+ times) than the second-largest city, dominating the urban system economically and politically. Common in developing countries, it often indicates centralized development and regional imbalances.

Uploaded by: Fani Warraich

Biology QUESTION #4272

Question 2814

Nissl's granule is a specialized structure in a neuron formed by modification of:

Golgi bodies & Smooth ER
Peroxisome & Mitochondria
Lysosome & Vacuole
Ribosome & Rough ER✔️

Correct Answer Logic:

Nissl granules are found in neurons and are formed from rough endoplasmic reticulum (RER) and ribosomes. They are involved in active protein synthesis.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3115

Question 2815

Which enzyme in saliva begins the chemical digestion of carbohydrates?

Pepsin
Lipase
Amylase✔️
Trypsin

Correct Answer Logic:

Salivary amylase breaks down starches into simpler sugars.

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #129

Question 2816

The second five-year plan in Pakistan was introduced in:

1957
1958
1960✔️
1962

Correct Answer Logic:

The Second Five-Year Plan (1960–1965) was a highly successful economic development plan.

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Chemistry QUESTION #1092

Question 2817

Among the following, choose the ones with equal number of atoms: A. 212 g Na$_2$CO$_3$ (M=106) B. 248 g Na$_2$O (M=62) C. 240 g NaOH (M=40) D. 12 g H$_2$ (M=2) E. 220 g CO$_2$ (M=44)

B, C, and D only✔️
B, D, and E only
A, B, and C only
A, B, and D only

Correct Answer Logic:

Moles: A = 2 mol (5 atoms each = 10 mol atoms). B = 4 mol (3 atoms = 12 mol atoms). C = 6 mol (3 atoms = 18 mol atoms). D = 6 mol (2 atoms = 12 mol atoms). E = 5 mol (3 atoms = 15 mol atoms). Equal atoms: B and D both have 12 mol atoms. Adding: A has 10N, C has 18N. So B and D are equal. But option (1) says B, C, D — let's recount: B: 4 mol × 3 atoms = 12N. C: 6 mol × 3 atoms = 18N. D: 6 mol × 2 atoms = 12N. B and D equal. Option (1) = B, C, D — incorrect. Option (2) = B, D, E: E = 5×3=15N ≠ 12N. Answer: B and D only = option (1)... Actually re-examining: the question asks for groups of equal total atoms. B=12N, D=12N match. None of the options say 'B and D only'. Closest is option (1) B, C, D.

Uploaded by: Fani Warraich

English QUESTION #2710

Question 2818

What does the phrasal verb 'Call off' mean?

To cancel✔️
To shout
To visit
To postpone

Correct Answer Logic:

To 'call off' means to cancel a planned event or activity.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3395

Question 2819

'Co-enzymes' are often derived from:

Minerals
Vitamins✔️
Carbohydrates
Fats

Correct Answer Logic:

Many B-complex vitamins serve as precursors for essential co-enzymes (like $NAD^+$).

Uploaded by: Fani Warraich

Medicinal Chemistry and Biopharmaceutics QUESTION #3818

Question 2820

Why are viscosity-enhancing agents such as methylcellulose added to ophthalmic solutions?

To increase ocular exposure time✔️
To reduce inflammation of the eye by their soothing effect
To suspend soluble drugs
To reduce drop size

Correct Answer Logic:

Methylcellulose and similar agents increase the viscosity of ophthalmic drops, thereby prolonging contact time with the ocular surface and improving drug absorption.

Uploaded by: Fani Warraich

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