Reading Mode - Questions

Electrical Engineering QUESTION #2180

A full-wave bridge rectifier with capacitor filter has $V_s = 220\,\text{V}$ (rms) at $50\,\text{Hz}$, $R_L = 1\,\text{k}\Omega$, and $C = 1000\,\mu\text{F}$. The approximate peak-to-peak ripple voltage is:

$3.11\,\text{V}$✔️
$6.22\,\text{V}$
$1.56\,\text{V}$
$12.4\,\text{V}$

Correct Answer Logic:

$V_{peak} = 220\sqrt{2} \approx 311\,\text{V}$. For a full-wave rectifier: $V_r = \frac{V_{peak}}{2fR_LC} = \frac{311}{2\times50\times1000\times10^{-3}} = \frac{311}{100} \approx 3.11\,\text{V}$.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #4024

Question 4562

If the 'Water Level Indicator' glass breaks, the first action of the operator should be:

Run out of the room
Close the steam and water cocks of the gauge immediately✔️
Call the police
Increase the fuel flow

Correct Answer Logic:

Safety protocols require isolating the gauge to prevent steam burns and water loss.

Uploaded by: Fani Warraich

Chemistry QUESTION #4379

Question 4563

Number of unpaired electrons present in the ground state of $Fe^{3+}$ are (Atomic number of $Fe = 26$):

Three
Four
Five✔️
Six

Correct Answer Logic:

Ground state of $Fe$: $[Ar]\ 3d^6\ 4s^2$. $Fe^{3+}$ loses 3 electrons (first from $4s$, then from $3d$): $[Ar]\ 3d^5$. In $3d^5$, all five $3d$ orbitals have one electron each (Hund's rule), giving $\mathbf{5}$ unpaired electrons.

Uploaded by: Fani Warraich

Basic Mathematics QUESTION #2809

Question 4564

What is $35\%$ of 480?

152
162
168✔️
172

Correct Answer Logic:

$35\% \text{ of } 480 = \dfrac{35}{100} \times 480 = \dfrac{35 \times 480}{100} = \dfrac{16800}{100} = 168$.

Uploaded by: Fani Warraich

Physics QUESTION #382

Question 4565

The algebraic sum of potential changes in a closed circuit is zero is Kirchhoff's __________ rule.

First
Second✔️
Third
None of these

Correct Answer Logic:

This is Kirchhoff's voltage law (second rule)

Uploaded by: Fani Warraich

Architecture QUESTION #2366

Question 4566

In the context of Green Building design, the Overall Thermal Transfer Value (OTTV) is a metric used to evaluate:

The amount of heat generated by building occupants and equipment per unit floor area
The total heat gain through the building envelope (walls, roofs, and fenestration) per unit area of the building facade, used to set energy performance benchmarks✔️
The coefficient of performance (COP) of the HVAC system
The total solar radiation incident on the building roof per year

Correct Answer Logic:

OTTV (Overall Thermal Transfer Value, in W/m²) is an energy code metric used in tropical and subtropical regions (including ECBC in Pakistan/India) that quantifies the total heat gain through the building envelope per unit external wall area. It accounts for conduction through opaque walls, solar radiation through windows (WWR, SHGC), and conductive heat through glazing. A lower OTTV indicates a more thermally efficient building envelope.

Uploaded by: Fani Warraich

English QUESTION #2643

Question 4567

Identify the verb in the following sentence: 'The students have completed their assignment.'

Students
Have completed✔️
Assignment
Their

Correct Answer Logic:

'Have completed' is the verb phrase consisting of an auxiliary verb and a past participle.

Uploaded by: Fani Warraich

Biology QUESTION #4191

Question 4568

Sensory input from auditory and visual pathways, skin and within the body is received by ________ and distributed to________

Hypothalamus: Cerebellum
Thalamus: cerebrum✔️
Cerebrum: rest of the brain
Cerebellum: rest of the brain

Correct Answer Logic:

The thalamus receives sensory input and relays it to the cerebrum.

Uploaded by: Fani Warraich

Mechanical Engineering QUESTION #2554

Question 4569

For two vectors $\mathbf{A}$ and $\mathbf{B}$, the vector triple product $\mathbf{A}\times(\mathbf{B}\times\mathbf{C})$ equals:

$(\mathbf{A}\cdot\mathbf{C})\mathbf{B}-(\mathbf{A}\cdot\mathbf{B})\mathbf{C}$✔️
$(\mathbf{A}\cdot\mathbf{B})\mathbf{C}-(\mathbf{A}\cdot\mathbf{C})\mathbf{B}$
$(\mathbf{B}\cdot\mathbf{C})\mathbf{A}-(\mathbf{A}\cdot\mathbf{C})\mathbf{B}$
$\mathbf{B}(\mathbf{A}\cdot\mathbf{C})+\mathbf{C}(\mathbf{A}\cdot\mathbf{B})$

Correct Answer Logic:

The BAC-CAB rule for the vector triple product: $\mathbf{A}\times(\mathbf{B}\times\mathbf{C})=\mathbf{B}(\mathbf{A}\cdot\mathbf{C})-\mathbf{C}(\mathbf{A}\cdot\mathbf{B})$. The result lies in the plane of $\mathbf{B}$ and $\mathbf{C}$.

Uploaded by: Fani Warraich

Security Measures to Maintain Law and Order QUESTION #873

Question 4570

Under Section 7, if a disaster occurs, ASF's power to "search and seize" extends to:

Only passengers
Anyone within aerodrome limits✔️
Only airline staff
Only suspected criminals

Correct Answer Logic:

The authority to maintain order and conduct searches applies to "any person" within the limits of the aerodrome.

Uploaded by: Fani Warraich

Islamic Studies QUESTION #352

Question 4571

The Ottoman dynasty was established in the year:

1299 AD✔️
1517 AD
1605 AD
1840 AD

Correct Answer Logic:

Osman I declared the independence of his principality in 1299 AD, marking the start of the dynasty.

Uploaded by: Fani Warraich

Commerce QUESTION #6124

Question 4572

A business uses marginal costing. Which formula correctly calculates contribution?

Sales revenue − variable production cost − fixed production cost
Sales revenue − variable production cost − fixed production cost − variable selling expenses
Sales revenue − variable production cost − variable selling expenses✔️
Sales revenue − variable production cost − stepped cost

Correct Answer Logic:

Option C is correct.

Contribution = Sales Revenue − All Variable Costs (variable production costs + variable selling expenses).

Fixed costs are period costs deducted after contribution — they are not part of the contribution formula.

Uploaded by: Fani Warraich

Logical Reasoning QUESTION #4434

Question 4573

How many trees are in the orchard? Which of the statements below are needed to sufficiently answer this question? I. Ibrahim is a farmer and looks after half of the trees in the orchard. II. $300$ trees in the orchard are under Ibrahim's care.

I is enough
II is enough
Both I and II are needed✔️
Neither I nor II are sufficient

Correct Answer Logic:

Statement I alone tells us Ibrahim looks after half the trees but gives no actual number. Statement II alone tells us $300$ trees are under Ibrahim's care but does not tell us what fraction that is. Together: if Ibrahim cares for half the trees and that equals $300$, then total trees $= 300 \times 2 = 600$. Both statements are needed.

Uploaded by: Fani Warraich

Civil Procedure QUESTION #3699

Question 4574

A plaintiff (State A) sues a defendant (State B) in federal court in State A for $\text{\$100,000}$. The defendant impleads a third-party (State B) for indemnity. The third-party then files a counterclaim against the original plaintiff (State A) for $\text{\$10,000}$ arising from the same transaction. Does the court have jurisdiction over the third-party's counterclaim?

No, because the amount is under $\text{\$75,000}$.
No, because 1367(b) bars it.
Yes, because 1367(b) only restricts claims by 'plaintiffs' in diversity cases, not claims by other parties.✔️
Yes, but only if the plaintiff consents.

Correct Answer Logic:

28 U.S.C. $\S 1367(b)$ restricts supplemental jurisdiction for claims 'by plaintiffs' against persons made parties under certain rules (14, 19, 20, 24). It does not restrict claims by defendants or third-party defendants against the original plaintiff.

Uploaded by: Fani Warraich

English QUESTION #824

Question 4575

Pick the correct sentence about impact on economy:

This has a bad impact on economy.✔️
This has a bad impact to the economy.
This has a bad impact for the economy.
This has a bad impact over the economy.

Correct Answer Logic:

The correct preposition after 'impact' is 'on'. Correct: 'a bad impact on the economy' (though 'the' before economy would be more complete, option A is the best available choice).

Uploaded by: Fani Warraich

Urdu QUESTION #5230

Question 4576

بین کرنا کس شاعری صنف کا جز ہے؟

مثنوی
قصیدہ
رباعی
ان میں سے کوئی نہیں (بین کرنا مرثیے کا جز ہے)✔️

Correct Answer Logic:

بین کرنا مرثیے کی اصطلاح ہے، یہ مثنوی یا قصیدے کا حصہ نہیں۔

Uploaded by: Fani Warraich

Commerce QUESTION #6180

Question 4577

Which component of the interest rate compensates for the risk that a company might go bankrupt?

Maturity Risk Premium (MR)
Liquidity Preference (LP)
Default Risk Premium (DR)✔️
Inflation (g)

Correct Answer Logic:

Lesson 04 defines DR as the premium charged against the risk that a company might collapse or default on payments.

Uploaded by: Fani Warraich

Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5761

Question 4578

Epinephrine is added to local anesthetics to:

Increase absorption rate
Decrease duration
Cause local vasodilation
Produce vasoconstriction and increase duration✔️

Correct Answer Logic:

Vasoconstriction slows drug absorption away from the site, increasing local duration.

Uploaded by: Fani Warraich

Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5686

Question 4579

In the context of the Young's rule for pediatric dosing, if the adult dose is $D_{A}$, the child's age is $n$, the dose for the child $D_{C}$ is calculated as:

$D_{C} = D_{A} \times \frac{n}{n+12}$✔️
$D_{C} = D_{A} \times \frac{n}{20}$
$D_{C} = D_{A} \times \frac{weight}{70}$
$D_{C} = D_{A} \times \frac{n}{150}$

Correct Answer Logic:

Young's rule is defined as: Child's dose = [Age / (Age + 12)] x Adult dose.

Uploaded by: Fani Warraich

Tourism & Hospitality Management QUESTION #1649

Question 4580

The Emerging Trends in Tourism & Hospitality course covers 'forecasting the future of tourism.' Which of the following forecasting scenarios is specifically addressed in the curriculum?

The elimination of budget airlines by 2030
Key themes for 2020 in the hospitality and tourism sector, drivers of change over the next decade, the world in 2030, technology and tomorrow's customer, and travel in 2015 market expectations✔️
The complete digitization of all hotel check-in procedures by 2025
The decline of cultural tourism in favor of medical tourism globally

Correct Answer Logic:

Module 4 of the Emerging Trends course — 'Forecasting the Future of Tourism and Hospitality' — specifically covers: Key Themes for 2020, Drivers of Change over the Next Decade, The World in 2030, Technology and Tomorrow's Customer, Travel in 2015 market expectations, and Building a Future-Ready Organization — providing a structured forward-looking framework for the industry.

Uploaded by: Fani Warraich

More Options

Suggest a Question