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Civil / Architecture QUESTION #2366

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.

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General Knowledge QUESTION #2632

Question 2

BYOD stands for 'Bring Your Own Device.' In an office context, this term refers to:

A policy requiring all employees to purchase identical company-issued computers
The practice of allowing people to use their own personal devices for work purposes✔️
A procedure for returning defective company equipment for replacement
A method for backing up office data onto personal storage devices

Correct Answer Logic:

BYOD (Bring Your Own Device) refers to the practice of allowing people to use their own personal devices — such as smartphones, laptops, or tablets — for work purposes. While convenient, it raises IT security and management challenges for organizations.

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English QUESTION #7552

Question 3

Translate into English: تمہارے بغیر زندگی ادھوری لگتی ہے۔

Life seems incomplete without you.✔️
Life feels lonely because of you.
Life is incomplete because of you.
Life becomes dark without your presence.

Correct Answer Logic:

The correct translation accurately conveys "seems incomplete" and "without you" in a natural English structure. Option A is the most accurate.

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Physics QUESTION #7085

Question 4

A wire stretches by $0.04\text{ m}$ under force $F$. What is the elongation if length and diameter are doubled under the same force?

$0.01\text{ m}$
$0.02\text{ m}$✔️
$0.04\text{ m}$
$0.08\text{ m}$

Correct Answer Logic:

Elongation $\Delta L = \frac{FL}{AY} = \frac{FL}{\pi(d/2)^2 Y} \propto \frac{L}{d^2}$.

New elongation $\Delta L' \propto \frac{2L}{(2d)^2} = \frac{2L}{4d^2} = \frac{1}{2} \Delta L$
$\Delta L' = \frac{1}{2} \times 0.04 = 0.02\text{ m}$.

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General Knowledge QUESTION #8622

Question 5

While the olive branch symbolizes peace, what does the lotus flower symbolize?

Progress
Culture and Civilization✔️
Justice
Romantic love

Correct Answer Logic:

The lotus symbolizes culture and civilization in many traditions.

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Mathematics QUESTION #1275

Question 6

If $f(Z)=u+iv$ is analytic and $u(x,y)=\cos x\cosh y$, then $v(x,y)$ is:

$-\sin x\sinh y$
$\sin x\sinh y$✔️
$\cos x\sinh y$
$-\cos x\sinh y$

Correct Answer Logic:

Using C-R: $u_x=-\sin x\cosh y=v_y\Rightarrow v=\int-\sin x\cosh y\,dy...$ Alternatively, $u_y=\cos x\sinh y=-v_x\Rightarrow v_x=-\cos x\sinh y\Rightarrow v=\sin x\sinh y+g(y)$. Then $v_y=\sin x\cosh y=u_x$... Actually $v_y=-\sin x\cosh y$ from C-R. Integrating: $v=-\sin x\sinh y$. Wait: $u_x=-\sin x\cosh y=v_y\Rightarrow v=\int-\sin x\cosh y\,dy=-\sin x\sinh y$. Hmm, but then checking: $u_y=\cos x\sinh y$ must equal $-v_x=\cos x\sinh y$ ✓. So $v=-\sin x\sinh y$. However common result for this pair is $v=\sin x\sinh y$ when $u=\cos x\cosh y$. Recheck: $f(z)=\cos z=\cos(x+iy)=\cos x\cosh y - i\sin x\sinh y$. So $v=-\sin x\sinh y$. Answer: option (A).

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Physics QUESTION #1035

Question 7

Two inclined surfaces of equal length $L$ at $45°$: one rough, one smooth. A body takes 2 times longer on the rough surface. The coefficient of kinetic friction $\mu_k$ is close to:

0.5
0.75✔️
0.25
0.40

Correct Answer Logic:

On smooth: $a_s = g\sin45°$. On rough: $a_r = g(\sin45°-\mu_k\cos45°)$. Time ratio: $t_r/t_s=2$. Since $L = \frac{1}{2}at^2$: $t\propto 1/\sqrt{a}$. So $\frac{t_r}{t_s}=\sqrt{\frac{a_s}{a_r}}=2\Rightarrow \frac{a_s}{a_r}=4\Rightarrow a_r=\frac{a_s}{4}$. $g(\sin45°-\mu_k\cos45°)=\frac{g\sin45°}{4}\Rightarrow 1-\mu_k=\frac{1}{4}\Rightarrow \mu_k=0.75$.

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Math Physics Chemistry Biology QUESTION #4187

Question 8

Which of the following is common between aldosterone, sex hormone and cortisone?

They are peptides
They are Phospholipids
They are steroids✔️
They are glycoproteins

Correct Answer Logic:

Aldosterone, sex hormones, and cortisone are all steroid hormones.

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Political Science QUESTION #6675

Question 9

The 'Theory of Surplus Value' is a key component of:

Capitalism
Marxism✔️
Fascism
None of these

Correct Answer Logic:

Marx used this theory to explain the exploitation of labor by capitalists.

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Pakistan Affairs QUESTION #7687

Question 10

What is the main theme of Pakistan's updated National Security Policy (2022-2026)?

Military modernization
Economic security✔️
Regional power dynamics
None of these

Correct Answer Logic:

Pakistan's National Security Policy (2022-2026) prioritizes economic security as its central theme. The policy recognizes that true national security is rooted in economic strength and focuses on putting citizens and economic development at the core of national security considerations.

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General Abilities QUESTION #2831

Question 11

Simplify: $\dfrac{2^5 \times 4^3}{8^2 \times 2}$

4
8✔️
16
32

Correct Answer Logic:

$2^5 = 32$, $4^3 = (2^2)^3 = 2^6 = 64$, $8^2 = (2^3)^2 = 2^6 = 64$. Numerator $= 2^5 \times 2^6 = 2^{11}$. Denominator $= 2^6 \times 2^1 = 2^7$. Result $= 2^{11-7} = 2^4 = 16$.

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Boilers Mechanical Engineering QUESTION #2421

Question 12

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: $R_{total}=\frac{1}{h_1A}+\frac{L_1}{k_1A}+\frac{L_2}{k_2A}+\cdots+\frac{1}{h_2A}$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3289

Question 13

A 'Bacteriostatic' agent is one that:

Kills bacteria immediately
Inhibits the growth and reproduction of bacteria✔️
Sterilizes the surface
Promotes bacterial growth

Correct Answer Logic:

Bacteriostatic agents stop growth but do not necessarily kill the cells (unlike bactericidal agents).

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Biology QUESTION #7252

Question 14

Flagellated male gametes are present in all three members of which one of the following sets?

Riccia, Dryopteris and Cycas✔️
Anthoceros, Funaria and Spirogyra
Zygnema, Saprolegnia and Hydrilla
Fucus, Marsilea and Calotropis

Correct Answer Logic:

Riccia (liverwort), Dryopteris (fern), and Cycas (gymnosperm) all produce flagellated (motile) antherozoids. Cycas is notable among gymnosperms for retaining multiflagellate sperms. Calotropis is an angiosperm with non-motile pollen. Spirogyra and Zygnema reproduce by conjugation without flagellated gametes.

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Pakistan Affairs QUESTION #4668

Question 15

Pakistan's largest export destination country is which of the following?

Saudi Arabia
United States✔️
Japan
United Arab Emirates

Correct Answer Logic:

The United States has historically been Pakistan's largest single export destination, with textile products being the major exports.

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Urdu QUESTION #5084

Question 16

'نقشِ فریادی' کس کا شعری مجموعہ ہے؟

منیر نیازی
احمد ندیم قاسمی
ناصر کاظمی
فیض احمد فیض✔️

Correct Answer Logic:

نقشِ فریادی فیض احمد فیض کا پہلا مجموعۂ کلام ہے جو 1941ء میں شائع ہوا۔

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Physics QUESTION #1167

Question 17

What is NOT the condition for equilibrium in a three-dimensional system?

$\sum F_x = 0$
$\sum F_y = 0$
$\sum F_z = 0$
$\sum F \neq 0$✔️

Correct Answer Logic:

For a body to be in equilibrium in three dimensions, the net force in every direction must be zero: $\sum F_x = 0$, $\sum F_y = 0$, and $\sum F_z = 0$. The condition $\sum F \neq 0$ violates equilibrium (it means there is a net unbalanced force), so it is NOT a condition for equilibrium.

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The Elections Act 2017 QUESTION #9426

Question 18

Under Section 55(5), after the Commission refers a disciplinary matter to an Enquiry Officer, that Officer must complete enquiry proceedings within how many days and submit the report within how many days thereafter?

Thirty days; seven days✔️
Sixty days; fourteen days
Twenty-one days; seven days
Forty-five days; seven days

Correct Answer Logic:

Section 55(5) states: 'The Enquiry Officer or Authorized Officer shall complete enquiry proceedings within thirty days of the reference to him and shall submit the enquiry report to the Commission within seven days of the completion of the enquiry.'

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Chemistry QUESTION #7379

Question 19

In Bohr's atomic model, how are orbital radius $r$ and energy $E$ related to orbit number $n$?

$r \propto n^2$ and $E \propto \dfrac{1}{n^2}$✔️
$r \propto \dfrac{1}{n^2}$ and $E \propto n^2$
$r \propto \dfrac{1}{n}$ and $E \propto n$
$E \propto n^2$ and $r \propto n^2$

Correct Answer Logic:

Bohr's model relationships:
$r_n = a_0 \cdot \dfrac{n^2}{Z}$ → $r \propto n^2$

$E_n = -13.6 \cdot \dfrac{Z^2}{n^2}$ eV → $E \propto -\dfrac{1}{n^2}$

As orbit number increases, radius increases (electrons move farther out) while energy becomes less negative (electrons become less tightly bound). For hydrogen (Z=1): $r_1 = 0.529$ Å (Bohr radius).

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Pakistan Affairs QUESTION #609

Question 20

In which war did Ahmad Khan Kharal fight against the British in Punjab?

1839
1885
1897
None of these✔️

Correct Answer Logic:

Ahmad Khan Kharal led the resistance during the War of Independence in 1857 .

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