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Academic/Professional (Social Sciences) QUESTION #10094

Question 241

The functionalist perspective views education primarily as a mechanism for:

Reproducing class inequality
Social integration and value transmission✔️
Political indoctrination only
Individual rebellion

Correct Answer Logic:

Functionalists see education as instilling shared values and integrating individuals into society.

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Geography QUESTION #1242

Question 242

There are no glaciers in:

Australia✔️
Asia
Europe
None of these

Correct Answer Logic:

Australia is the only continent with no glaciers (excluding Antarctica). It is located predominantly in tropical and temperate latitudes and lacks the high-altitude mountain ranges necessary to sustain permanent glaciers. Asia (Himalayas, Karakoram), Europe (Alps, Scandinavia), and all other continents have glaciers.

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Electronics Engineering QUESTION #11727

Question 243

A contactor rated 400 V AC, 50 A is used to switch a 400 V, 30 kW motor. The full-load current is approximately:

$43\,\text{A}$
$75\,\text{A}$
$43\,\text{A}$ at $\cos\phi = 1$
$54\,\text{A}$ at $\cos\phi = 0.85$, $\eta = 0.9$✔️

Correct Answer Logic:

$I_{FL} = \dfrac{P_{out}}{\sqrt{3} \times V_L \times \cos\phi \times \eta} = \dfrac{30000}{\sqrt{3} \times 400 \times 0.85 \times 0.9} = \dfrac{30000}{529} \approx \mathbf{56.7\,\text{A}}$. The contactor must be rated above this value. Approximately 54 A at typical efficiency/PF is the closest correct calculation here.

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General Knowledge QUESTION #8736

Question 244

The 'West Indies' archipelago consists of approximately how many islands?

500 islands
700 islands
1200 islands✔️
2000 islands

Correct Answer Logic:

The West Indies contain over 700 islands.

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Home Economics QUESTION #6258

Question 245

'Feedback' in the communication process is important because it:

Increases the cost of communication
Ensures the message was understood✔️
Distorts the original message
Replaces the sender

Correct Answer Logic:

Feedback completes the communication loop by confirming the receiver's response.

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English QUESTION #8385

Question 246

De Jure means:

by right
by law✔️
by the way
by itself

Correct Answer Logic:

De Jure means by law (legally).

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3522

Question 247

The study of poisons, their detection, and their effects is called:

Pharmacology
Toxicology✔️
Pharmacognosy
Posology

Correct Answer Logic:

Toxicology is the branch of science concerned with the nature, effects, and detection of poisons.

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Islamic Studies QUESTION #330

Question 248

What was the original name of the host of the Prophet (ﷺ), Abu Ayub Ansari (RA)?

Zaid bin Thabit
Khalid bin Zaid✔️
Qais bin Saad
Hanzla bin Aamir

Correct Answer Logic:

His original name was Khalid bin Zaid bin Kulayb.

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Medicinal Chemistry and Biopharmaceutics QUESTION #3824

Question 249

If $400$ mg of potassium permanganate is dissolved in $2.5$ L of water, what is the percentage concentration of the resulting solution?

$0.016\%$✔️
$0.032\%$
$0.064\%$
$0.16\%$

Correct Answer Logic:

$400\ \text{mg} = 0.4\ \text{g}$ in $2500\ \text{mL}$. Concentration $= \dfrac{0.4}{2500} \times 100 = 0.016\%\ \text{w/v}$.

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Education QUESTION #6900

Question 250

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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Chemistry QUESTION #7826

Question 251

Distillation under very reduced pressure is called:

Destructive distillation
Fractional distillation
Steam distillation
Vacuum distillation✔️

Correct Answer Logic:

Vacuum distillation lowers boiling points, used for heat-sensitive compounds.

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Mathematics QUESTION #11188

Question 252

Integrating factor for $y' + \dfrac{4}{x}y = x^4$ is:

$x^4$✔️
$x\ln x^4$
$4\ln|x|$
$\ln|x|$

Correct Answer Logic:

For the linear ODE $y' + P(x)y = Q(x)$ with $P(x) = 4/x$, the integrating factor is $\mu = e^{\int P\,dx} = e^{\int 4/x\,dx} = e^{4\ln|x|} = |x|^4 = x^4$ (for $x > 0$).

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Aptitude QUESTION #11030

Question 253

A clock seen in a mirror shows the time as $3:00$. What is the actual time?

$9:00$✔️
$6:00$
$12:00$
$3:00$

Correct Answer Logic:

In a mirror image of a clock, the actual time = $12:00 - \text{mirror time}$ (for exact hours). For $3:00$, actual time = $12:00 - 3:00 = 9:00$.

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Boilers Mechanical Engineering QUESTION #2485

Question 254

For the RRT dyad, the letters R and T stand for:

Right angle and Translation
Rotation (revolute joint) and Translation (prismatic joint)✔️
Radius and Torque
Rigid and Translational

Correct Answer Logic:

In mechanism dyad notation, R denotes a Revolute (rotating pin) kinematic pair and T denotes a Translational (slider/prismatic) kinematic pair.

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Chemistry QUESTION #7407

Question 255

Which is the correct order for the first ionisation potential (IP₁)?

$\text{Na} > \text{Al}$
$\text{Mg} > \text{Al}$✔️
$\text{Ga} > \text{Ca}$
$\text{Mg} > \text{Be}$

Correct Answer Logic:

IE₁ irregularities:
Generally IE₁ increases left to right, but Al (3p¹) has lower IE₁ than Mg (3s²) because:

Mg has a full 3s² subshell (extra stability)
Al's 3p electron is shielded by 3s electrons and easier to remove

Therefore $\text{Mg} > \text{Al}$ is a correct and expected inequality. This is one of the classic exceptions to the smooth IE trend across period 3.

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General Knowledge QUESTION #8917

Question 256

What is the chemical symbol for Gold?

Go
Gd
Au✔️
Ag

Correct Answer Logic:

Au from Latin 'aurum'.

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General Science and Ability QUESTION #255

Question 257

Which of the following is used for measuring distance?

Coulomb
light year✔️
Farad
Curie

Correct Answer Logic:

A light year is the distance light travels in one year, roughly 9.46 trillion km.+2

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Chemistry QUESTION #7811

Question 258

Hemoglobin is a protein with which structural level?

Primary
Secondary
Tertiary
Quaternary✔️

Correct Answer Logic:

Hemoglobin has four polypeptide chains (two α, two β), each with tertiary structure, assembled into quaternary structure.

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Boilers Mechanical Engineering QUESTION #2428

Question 259

The parameter $m$ (fin parameter) for an extended surface (fin) with perimeter $P$, cross-sectional area $A_c$, convection coefficient $h$, and conductivity $k$ is:

$m = \sqrt{hP/(kA_c)}$✔️
$m = hP \cdot kA_c$
$m = \sqrt{kA_c/(hP)}$
$m = h/(kP A_c)$

Correct Answer Logic:

The fin parameter $m=\sqrt{hP/(kA_c)}$ (m⁻¹) governs the exponential temperature decay along the fin.

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Geography QUESTION #1244

Question 260

The colour of a star is an indication of its:

Size
Distance away
Surface temperature✔️
None of these

Correct Answer Logic:

The colour of a star directly indicates its surface temperature. Cool stars (around 3,000 K) appear red; medium-temperature stars like the Sun (~5,500 K) appear yellow-white; hot stars (30,000+ K) appear blue-white. This is described by Wien's Displacement Law. A star's colour does not directly indicate its size or distance.

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