Reading Mode - Questions

Biology Zoology Botany QUESTION #1382

Which of the following is NOT a characteristic of algae?

Autotrophic
Multicellular
Lack true roots, stems, and leaves
All algae are microscopic✔️

Correct Answer Logic:

Not all algae are microscopic — this is the FALSE statement. Giant kelp (Macrocystis pyrifera) can grow up to 60 metres long. Algae are autotrophic (mostly), lack true roots/stems/leaves (they have thallus), and can be unicellular or multicellular. The statement that 'all algae are microscopic' is incorrect.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3624

Question 5502

An 'Allergen' is a substance that:

Causes a disease
Triggers an allergic reaction (hypersensitivity)✔️
Cures a headache
Increases energy

Correct Answer Logic:

Allergens stimulate the immune system to react excessively.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3537

Question 5503

'Ipecac' is used in emergency medicine as an 'Emetic'. This means it:

Stops diarrhea
Induces vomiting✔️
Relieves pain
Cures infection

Correct Answer Logic:

Ipecac syrup was historically used to empty the stomach after poisoning.

Uploaded by: Fani Warraich

Mathematics QUESTION #4158

Question 5504

For the Laplace equation $u_{xx} + u_{yy} = 0$ on $0 < x < a$, $0 < y < b$ with $u(0,y) = u(a,y) = u(x,0) = 0$ and $u(x,b) = f(x)$, what is the general form of solution using separation of variables?

$u(x,y) = \sum_{n=1}^{\infty} B_n \sin(\frac{n\pi x}{a})\sinh(\frac{n\pi y}{a})$✔️
$u(x,y) = \sum_{n=1}^{\infty} B_n \cos(\frac{n\pi x}{a})\cosh(\frac{n\pi y}{a})$
$u(x,y) = \sum_{n=1}^{\infty} B_n \sin(\frac{n\pi x}{a})\cos(\frac{n\pi y}{b})$
$u(x,y) = \sum_{n=1}^{\infty} B_n e^{\frac{n\pi x}{a}}\sin(\frac{n\pi y}{b})$

Correct Answer Logic:

Boundary conditions $u(0,y) = u(a,y) = 0$ suggest $X(x) = \sin(\frac{n\pi x}{a})$. Condition $u(x,0) = 0$ gives $Y(0) = 0$, so $Y(y) = \sinh(\frac{n\pi y}{a})$.

Uploaded by: Fani Warraich

Dairy Food Science and Technology QUESTION #5997

Question 5505

The 'water holding capacity' (WHC) of yoghurt gel is related to:

Total fat content of the milk used
The protein network density, degree of cross-linking, and porosity of the casein gel — determined by pre-heat treatment of milk (denatured $\beta$-Lg plugs gel pores), fermentation $\text{pH}$, and protein concentration✔️
The amount of starter culture added
Incubation temperature above $45^{\circ}\text{C}$

Correct Answer Logic:

WHC of yoghurt gel determines syneresis susceptibility. High WHC $=$ less syneresis. WHC is improved by: high heat treatment of milk ($90\text{–}95^{\circ}\text{C}/5\text{–}10\;\text{min}$) — denatured $\beta$-Lg associates with $\kappa$-casein increasing network density; higher protein concentration (SMP fortification); slower acidification; EPS-producing strains.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3113

Question 5506

The majority of nutrient absorption takes place in the:

Stomach
Small Intestine✔️
Large Intestine
Esophagus

Correct Answer Logic:

The small intestine (especially the jejunum) is the primary site of absorption due to its large surface area.

Uploaded by: Fani Warraich

Tourism & Hospitality Management QUESTION #1637

Question 5507

The Tourism Marketing course discusses 'strategic alliances in the world airline industry' as referenced in the recommended readings. In the context of tourism marketing, such alliances primarily benefit tourists by offering which advantage?

Higher ticket prices through reduced competition
Seamless connectivity, code-sharing, reciprocal frequent flyer benefits, and expanded route networks that reduce the complexity and cost of international travel✔️
Exclusive access to first-class lounges only for alliance members
Standardized in-flight meal services across all alliance airlines

Correct Answer Logic:

Strategic alliances (such as Star Alliance, Oneworld, and SkyTeam) are referenced in the Tourism Marketing course's recommended readings (Bennett, 1997). For tourists, alliances deliver seamless connectivity through code-sharing, integrated booking, reciprocal frequent flyer benefits, and expanded global route networks — reducing layovers and improving the overall travel experience.

Uploaded by: Fani Warraich

Urdu QUESTION #5300

Question 5508

اس زلف پہ پھبتی شبِ دیجور کی سوجھی، یہ مشہور شعر کس شاعر کا ہے؟

فیض احمد
جوش
احمد فراز
انشاء✔️

Correct Answer Logic:

یہ شعر انشاء اللہ خان انشاء کا ہے جو لکھنؤ کے مشہور شاعر تھے۔

Uploaded by: Fani Warraich

Chemistry QUESTION #4343

Question 5509

Chlorination of benzene in the presence of iron(III) chloride involves mechanism of:

Electrophilic addition
Electrophilic Substitution✔️
Free radical Substitution
Free radical halogenation

Correct Answer Logic:

Benzene undergoes electrophilic aromatic substitution (EAS). $FeCl_3$ acts as a Lewis acid catalyst, generating the electrophile $Cl^+$ from $Cl_2$, which then attacks the benzene ring.

Uploaded by: Fani Warraich

Physics QUESTION #388

Question 5510

The angular frequency of simple pendulum is directly proportional to __________

l
1/l
?l
?(1/l)✔️

Correct Answer Logic:

? ? ?(g/l) = ?(1/l)

Uploaded by: Fani Warraich

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

Question 5511

'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

Chemistry QUESTION #450

Question 5512

__________ hybridization leads to a regular tetrahedral structure.

sp?✔️
sp?
sp
All of these

Correct Answer Logic:

sp? hybridization gives tetrahedral geometry

Uploaded by: Fani Warraich

Electrical Engineering QUESTION #2194

Question 5513

A synchronous generator with inertia constant $H = 5\,\text{MJ/MVA}$ is rated at $100\,\text{MVA}$. The angular momentum coefficient $M = GH/(\pi f_s)$ used in the swing equation (at $50\,\text{Hz}$) is approximately:

$3.18\,\text{MJ s/rad}$✔️
$5.00\,\text{MJ s/rad}$
$0.318\,\text{MJ s/rad}$
$1.59\,\text{MJ s/rad}$

Correct Answer Logic:

Stored kinetic energy $= H\times S_{rated} = 5\times100 = 500\,\text{MJ}$. Swing equation inertia: $M = \frac{GH}{\pi f_s} = \frac{100\times5}{\pi\times50} = \frac{500}{157.08} \approx 3.18\,\text{MJ·s/rad}$.

Uploaded by: Fani Warraich

Chemistry QUESTION #478

Question 5514

Al?F?SiO? is named as

Gibbsite
Emerald✔️
Bauxite
Cryolite

Correct Answer Logic:

This is beryl/emerald composition

Uploaded by: Fani Warraich

Commerce QUESTION #6229

Question 5515

An auditor's 'Professional Skepticism' is best described as:

A belief that management is always dishonest
A questioning mind and a critical assessment of audit evidence✔️
A refusal to use sampling techniques
The use of KaTeX for all financial calculations

Correct Answer Logic:

Professional skepticism involves a questioning mind and being alert to evidence that contradicts the reliability of documents or management responses.

Uploaded by: Fani Warraich

Chemistry QUESTION #426

Question 5516

The products of the fermentation of a sugar are ethanol and

Water
Oxygen
Carbon dioxide✔️
Sulfur dioxide

Correct Answer Logic:

Alcoholic fermentation produces ethanol and CO?

Uploaded by: Fani Warraich

Physics QUESTION #1166

Question 5517

The internal energy of an ideal gas is __________ dependent.

Pressure
Temperature✔️
Volume
All of these

Correct Answer Logic:

For an ideal gas, the internal energy depends only on temperature. This is because ideal gas molecules have no intermolecular forces and therefore no potential energy — only kinetic energy which is proportional to temperature: $U = nC_vT$. It is independent of pressure and volume.

Uploaded by: Fani Warraich