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Civil Engineering QUESTION #6623

The 'Modulus of Elasticity' ($E$) for all structural steel grades is approximately:

$29,000,000$ psi✔️
$2,900,000$ psi
$290,000$ psi
$50,000$ psi

Correct Answer Logic:

Unlike yield strength, the stiffness of steel ($E$) is constant across nearly all grades, taken as 29,000 ksi or 200,000 MPa.

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Education QUESTION #6900

Question 1362

A teacher gives a student who regularly seeks power the role of 'class monitor' and assigns him to lead a group activity. The student's behavior improves. This strategy BEST reflects which management principle?

Behavior modification through positive reinforcement of compliant behavior
Assertive discipline's reward tier for students who comply with rules
Dreikurs' approach of redirecting mistaken goals by meeting students' underlying need for significance in prosocial ways✔️
Permissiveness, which grants students freedom to fulfill their own needs

Correct Answer Logic:

Dreikurs argued that when a student's power-seeking behavior stems from an unmet need for significance, the teacher should redirect that need — giving the student legitimate opportunities to exercise power and feel valued. This addresses the root cause rather than simply suppressing the symptom.

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Urdu QUESTION #5147

Question 1363

اکبر الہ آبادی کی شاعری کی خصوصیت کیا ہے؟

مغربی تقلید کی مخالفت✔️
لسانیات
افسانے کی شاعری
ان میں سے کوئی نہیں

Correct Answer Logic:

اکبر الہ آبادی مغربی تقلید کے خلاف طنزیہ شاعری کے لیے مشہور ہیں۔

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Physics QUESTION #401

Question 1364

A 2m long pipe is open at both ends. What is its harmonic frequency?

42.5 Hz
85 Hz✔️
220 Hz
None of these

Correct Answer Logic:

For open pipe: f = v/2L = 340/(2?2) = 85 Hz

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3501

Question 1365

Tannins are chemically defined as:

Nitrogenous bases
Complex organic, non-nitrogenous polyphenolic compounds✔️
Sugars
Fats

Correct Answer Logic:

Tannins are astringent substances that can precipitate proteins.

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Therapeutics and Patient Care QUESTION #3883

Question 1366

For which drug class is laxative use most likely to be required as a routine preventative measure against a predictable adverse effect?

Piroxicam
Oxycodone✔️
Cefalexin
Dexamethasone

Correct Answer Logic:

Opioids including oxycodone cause constipation in virtually all patients by reducing GI motility and increasing sphincter tone. Prophylactic laxative therapy is standard practice.

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Federal Rules of Evidence (US) QUESTION #3782

Question 1367

A plaintiff sues a doctor for malpractice. The plaintiff wants to introduce a letter written by the doctor to the plaintiff saying: 'I am so sorry I used the wrong surgical tool; I will pay for all your follow-up treatments.' The doctor objects. What part of the letter, if any, is admissible?

None of it, under Rule 408 (Compromise Offers).
Only the apology, because the offer to pay medical expenses is excluded under Rule 409.
Only the admission ('I used the wrong tool'), because Rule 409 only excludes the 'offer to pay' and not surrounding statements of fact.✔️
All of it, because it is an admission by a party-opponent.

Correct Answer Logic:

Rule 409 excludes evidence of offering or promising to pay medical expenses to prove liability. However, unlike Rule 408 (settlement negotiations), Rule 409 does NOT exclude collateral admissions of fact made in connection with the offer.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5715

Question 1368

A mixture that contains $0.5\% \text{ w/v}$ of a drug. How many milligrams are in $5 \text{ mL}$?

$2.5 \text{ mg}$
$25 \text{ mg}$✔️
$50 \text{ mg}$
$0.25 \text{ mg}$

Correct Answer Logic:

Calculation: $0.5\text{ g}$ in $100\text{ mL} \Rightarrow 500\text{ mg} / 100\text{ mL} = 5\text{ mg/mL}$. So, $5\text{ mL} \times 5\text{ mg/mL} = 25\text{ mg}$.

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General Knowledge QUESTION #114

Question 1369

The microwave oven has become a standard appliance in many kitchens, mainly because it offers a fast way of cooking food. Yet, some homeowners believe that the ovens are still not completely safe. Microwaves, therefore, should not be a standard appliance until they have been carefully researched and tested.

Sub-Questions:

Question 1

Which of the following, if true, would most weaken the conclusion of the passage above?

Homeowners, often purchase items despite knowing they may be unsafe.
Those homeowners in doubt about microwave safety ought not to purchase microwaves.
Research and testing of home appliances seldom reveals safety hazards.✔️
Microwaves are not as dangerous as steam irons, which are used in almost every home.

Question 2

Which one of the following, if true, would most strengthen the conclusion of the passage above?

Homeowners often doubt the advertised safety of all new appliances.
Speed of food preparation is not the only concern of today’s homeowner.
Modern homeowners have more free time than ever before.
Many microwave ovens have been found to leak radioactive elements.✔️

Correct Answer Logic:

1 The conclusion of the passage is that, because of safety concerns, more research and testing ought to be done before microwaves become standard household appliances. If, however, research and testing are ineffective means of discerning safety problems (as choice C says), then research and testing would be irrelevant. This criticism seriously weakens the conclusion. So choice C is the correct answer.

2 If many microwave ovens have been found to leak radioactive elements (as choice D says), then the conclusion that microwaves should not be standard appliances until they are more carefully researched and tested is further strengthened because more safety concerns need to be addressed. So, choice E is the correct answer.

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Chemistry QUESTION #7380

Question 1370

Which of the following is a WRONG statement?

The uncertainty principle is $\Delta E \cdot \Delta t \geq \dfrac{h}{4\pi}$
Half-filled and fully filled orbitals are more stable due to exchange energy, symmetry, and balanced electron arrangement
In hydrogen-like atoms, the energy of the 2s orbital is less than that of 2p orbital✔️
de Broglie wavelength is $\lambda = \dfrac{h}{mv}$ where $v$ is the group velocity of the particle

Correct Answer Logic:

Analysis of option (3):
In hydrogen and hydrogen-like (one-electron) atoms, orbitals with the same $n$ are degenerate — 2s and 2p have the same energy (energy depends only on $n$). The statement that 2s energy is less than 2p is only true for multi-electron atoms (due to penetration and shielding). Hence option (3) is wrong for hydrogen-like atoms.

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Tourism & Hospitality Management QUESTION #1642

Question 1371

In the Accounting and Finance for Tourism & Hospitality course, the 'accounting equation' forms the foundation of all financial statements. Which equation correctly represents this fundamental accounting principle?

Revenue − Expenses = Net Profit
Assets = Liabilities + Owner's Equity✔️
Cash Inflows − Cash Outflows = Net Cash Flow
Gross Profit − Operating Expenses = EBITDA

Correct Answer Logic:

The Accounting and Finance course (Module 2: Basics of Accounting) identifies the Accounting Equation — Assets = Liabilities + Owner's Equity — as the foundational principle underlying the Balance Sheet (Statement of Financial Position). Every business transaction maintains this equation in balance, forming the basis of double-entry bookkeeping and financial reporting.

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Physics QUESTION #7298

Question 1372

A particle is thrown vertically upward. Its speed at half the maximum height is $10\text{ m/s}$. The maximum height attained is ($g = 10\text{ m/s}^2$):

8 m
20 m
10 m✔️
16 m

Correct Answer Logic:

Let maximum height $= H$. At height $H/2$, velocity $= 10\text{ m/s}$.

Using $v^2 = u^2 - 2g\cdot\dfrac{H}{2}$: $100 = u^2 - gH$

At max height: $0 = u^2 - 2gH \Rightarrow u^2 = 2gH$

Substituting: $100 = 2gH - gH = gH \Rightarrow H = \dfrac{100}{10} = \mathbf{10\text{ m}}$

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General Knowledge QUESTION #167

Question 1373

The 7th NFC Award was signed in:

1996
2006
2010✔️
None of these

Correct Answer Logic:

The landmark 7th National Finance Commission Award was signed in 2010.

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General Ability and Fire Fighting QUESTION #5591

Question 1374

Which method of fire extinguishment involves removing heat from the fire?

Smothering
Starving
Cooling✔️
Inhibiting

Correct Answer Logic:

Cooling removes heat — typically using water — to bring the fuel temperature below its ignition point. This is the most common firefighting method.

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Mathematics QUESTION #4124

Question 1375

The polar curve $r = 2\cos(\theta)$ represents which conic section?

Circle with center at origin, radius $2$
Circle with center at $(1, 0)$, radius $1$✔️
Circle with center at $(0, 1)$, radius $1$
Ellipse with semi-major axis $2$

Correct Answer Logic:

$r = 2\cos(\theta) \Rightarrow r^2 = 2r\cos(\theta) \Rightarrow x^2 + y^2 = 2x \Rightarrow (x-1)^2 + y^2 = 1$. Circle center $(1,0)$, radius $1$.

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General Knowledge QUESTION #2623

Question 1376

What is the function of a HEATSINK in a computer?

To store temporary data for quick access by the CPU
To connect the CPU to the RAM through a dedicated data channel
To dissipate (remove) heat from the CPU to prevent it from overheating✔️
To manage the flow of electrical power from the power supply to all components

Correct Answer Logic:

A heatsink is used to dissipate heat from our CPU. The CPU generates significant heat during operation. The heatsink draws this heat away from the CPU and disperses it into the surrounding air, often aided by a cooling fan, to prevent damage from overheating.

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General Ability and Fire Fighting QUESTION #5627

Question 1377

Which of the following statements about Class D fires is TRUE?

They can be safely extinguished with water
They require wet chemical agents
They involve combustible metals and need specialized dry powder✔️
They are the same as Class B fires

Correct Answer Logic:

Class D fires involve combustible metals like magnesium and potassium. Many of these metals react violently with water

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Economics QUESTION #1705

Question 1378

Pakistan's industrial sector has historically underperformed relative to its regional peers. Which combination of structural bottlenecks most comprehensively explains this chronic underperformance?

Persistent shortage of technically skilled and vocationally trained labour
Chronic energy deficits that raise production costs and disrupt manufacturing operations
Deficient physical and logistical infrastructure including roads, ports, and industrial zones
All of these✔️

Correct Answer Logic:

Pakistan's industrial growth has been simultaneously constrained by all three factors: (1) a skills mismatch — low-quality technical and vocational education produces insufficient skilled manpower; (2) energy shortages — load-shedding and high electricity/gas tariffs significantly raise the cost of doing business; and (3) infrastructure deficits — poor road networks, congested ports, and inadequate industrial estates reduce competitiveness. Together they explain Pakistan's deindustrialisation trends.

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Ability / HR / Governance / Special Education QUESTION #1867

Question 1379

For candidates appointed on temporary basis to posts in Pakistan Missions abroad, relaxation of citizenship requirement shall not exceed what period at a time?

Six months
One year✔️
Two years
Three years

Correct Answer Logic:

Rule 13 second proviso states that for Pakistan Missions abroad, relaxation of citizenship requirement shall not be accorded for a period exceeding one year at a time.

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Physics QUESTION #1057

Question 1380

A sphere of radius $R$ is cut from a larger sphere of radius $2R$. Ratio of moment of inertia of smaller sphere to rest part about Y-axis:

$\dfrac{7}{57}$
$\dfrac{7}{64}$
$\dfrac{7}{8}$
$\dfrac{7}{40}$✔️

Correct Answer Logic:

Let density $=\rho$. Mass of large sphere: $M=\frac{4}{3}\pi(2R)^3\rho=\frac{32\pi R^3\rho}{3}$. Mass of small sphere: $m=\frac{4}{3}\pi R^3\rho=\frac{M}{8}$. $I_{small}=\frac{2}{5}mR^2$. Small sphere center is at $R$ from Y-axis (it's cut from side). $I_{small,Y}=\frac{2}{5}mR^2+mR^2=\frac{7mR^2}{5}$. $I_{large,Y}=\frac{2}{5}M(2R)^2=\frac{8MR^2}{5}$. $I_{rest}=I_{large}-I_{small,Y}=\frac{8MR^2}{5}-\frac{7mR^2}{5}=\frac{8MR^2-7(M/8)R^2}{5}=\frac{MR^2(8-7/8)}{5}=\frac{57MR^2}{40}$. Ratio $=\frac{7mR^2/5}{57MR^2/40}=\frac{7M/5\times40}{8\times57M}=\frac{7\times40}{5\times8\times57}=\frac{280}{2280}=\frac{7}{57}$.

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