Reading Mode - Questions

Have a higher total protein content in milk
Contain more essential amino acids and higher biological value $(\text{BV} \approx 100)$✔️
Are heat stable and resistant to digestion
Contain more phosphorus and calcium

Correct Answer Logic:

Whey proteins ($\beta$-lactoglobulin and $\alpha$-lactalbumin) have a biological value approaching $100$ and a PDCAAS of $1.0$, reflecting their excellent essential amino acid profile including high leucine, cysteine, and BCAAs.

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General Knowledge QUESTION #8877

Question 7025

When was the United Nations (UNO) officially formed?

24th October 1945✔️
7th November 1945
26th November 1945
5th December 1945

Correct Answer Logic:

UN Day is October 24, 1945.

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Physics QUESTION #7047

Question 7026

A pinhole camera box of length $L$ has a hole of radius $a$. The spot size is the sum of geometrical spread and diffraction spread. At what value of $a$ is the spot size $b_{min}$ minimized?

$a = \sqrt{\lambda L}$ and $b_{min} = \frac{2\lambda^2}{L}$
$a = \sqrt{\lambda L}$ and $b_{min} = \sqrt{4\lambda L}$✔️
$a = \sqrt{\frac{\lambda L}{2}}$ and $b_{min} = 2\sqrt{2\lambda L}$
$a = \frac{\lambda^2}{L}$ and $b_{min} = \frac{2\lambda^2}{L}$

Correct Answer Logic:

Spot size $b \approx \text{geometric spread} + \text{diffraction spread} = a + \frac{L\lambda}{a}$.

To minimize $b$, differentiate with respect to $a$ and set to zero:

$\frac{db}{da} = 1 - \frac{L\lambda}{a^2} = 0 \implies a = \sqrt{\lambda L}$.

Substituting back: $b_{min} = \sqrt{\lambda L} + \frac{L\lambda}{\sqrt{\lambda L}} = 2\sqrt{\lambda L} = \sqrt{4\lambda L}$.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3059

Question 7027

DRAP stands for:

Drug Regulatory Authority of Pakistan✔️
District Resource for All Pharmacies
Department of Research and Pharmacy
Daily Report on All Products

Correct Answer Logic:

DRAP is the central body regulating drugs in Pakistan.

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Electrical Engineering QUESTION #2191

Question 7028

Using Gauss's law, an infinite line charge with $\rho_L = 20\,\text{nC/m}$ in free space produces an electric field at $r = 5\,\text{cm}$ of:

$7{,}193\,\text{V/m}$✔️
$3{,}597\,\text{V/m}$
$14{,}386\,\text{V/m}$
$1{,}798\,\text{V/m}$

Correct Answer Logic:

$E = \frac{\rho_L}{2\pi\epsilon_0 r} = \frac{20\times10^{-9}}{2\pi\times8.854\times10^{-12}\times0.05} = \frac{20\times10^{-9}}{2.781\times10^{-12}} \approx 7{,}193\,\text{V/m}$.

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English QUESTION #8309

Question 7029

I don't know _______ to value your qualities.

Only how
so how
How✔️
that how

Correct Answer Logic:

'How' alone functions as an adverb meaning 'in what way'.

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General Ability and Fire Fighting QUESTION #5591

Question 7030

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 #6019

Question 7031

Let $S$ be the set of distinct values of $b$ for which the linear system $x+y+z=1$, $x+ay+z=1$, $ax+by+z=0$ has no solution. Describe the set $S$.

An empty set
An infinite set
A finite set with two or more elements
A singleton✔️

Correct Answer Logic:

Subtract equation 1 from equation 2: $(a-1)y = 0$.

Case $a\neq1$: $y=0$. Then from eq.1 and eq.3: $x+z=1$ and $ax+z=0$, giving $(a-1)x=-1$, so $x=\frac{-1}{a-1}$. This always has a solution for $a\neq1$.

Case $a=1$: System becomes $x+y+z=1$, $x+y+z=1$, $x+by+z=0$. The third equation forces $-1=by-... $ i.e. subtracting eq.1: $(b-1)y=-1$. For no solution we need $b=1$.

So $S=\{1\}$ — a single value. Hence $S$ is a singleton.

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HR and Management QUESTION #6466

Question 7032

The text's emphasis on 'most of these elements will affect you at some point in your career' suggests HRM knowledge is:

Only relevant for HR specialists
Universally applicable to all professionals✔️
Required only for senior executives
Optional for technical professionals

Correct Answer Logic:

HRM knowledge is universally applicable - whether you work in HRM or not, whether you work with organizations or have people working for you, you will be dealing with people and affected by HR practices. It's essential knowledge for all professionals.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3549

Question 7033

The 'Stomata' are tiny pores mostly found on:

Roots
Stems
Leaves✔️
Seeds

Correct Answer Logic:

Stomata are used for gas exchange and transpiration.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5791

Question 7034

The 'Adolescence' stage (ages $12$ to $18$) is primarily concerned with:

Trust
Identity✔️
Industry
Intimacy

Correct Answer Logic:

Adolescence is the stage of finding one's identity[cite: 7].

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General Knowledge QUESTION #8914

Question 7035

The gas commonly used in balloons (lighter than air) is:

Hydrogen
Helium✔️
Oxygen
Carbon dioxide

Correct Answer Logic:

Helium is non-flammable and lighter than air.

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Education QUESTION #6897

Question 7036

A teacher who scores high on 'social attractiveness' as a professional attribute is BEST described by which combination of characteristics?

Subject mastery, strict disciplinary record, and formal communication style
Cheerful disposition, emotional maturity, friendliness, sincerity, and strong ego strength✔️
Extensive publication record, advanced academic qualifications, and professional detachment
High energy, entertaining delivery style, and willingness to form personal friendships with students

Correct Answer Logic:

Social attractiveness in teacher-student relations refers to the professional interpersonal qualities that make a teacher approachable and trustworthy: cheerfulness, emotional maturity, sincerity, and ego strength (the ability to remain calm and solution-focused in conflicts without becoming defensive or aggressive). These qualities are foundational to building the teacher-student relationships that support effective classroom management.

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Accounting & Finance QUESTION #6175

Question 7037

Which financial statement provides a 'snapshot' of an organization's financial health at a specific point in time?

Income Statement
Cash Flow Statement
Balance Sheet✔️
Statement of Retained Earnings

Correct Answer Logic:

Lesson 01 describes the Balance Sheet as a 'snap-shot' of an organization’s financial health at a particular time.

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Mathematics QUESTION #7430

Question 7038

Distance between two parallel planes $2x + y + 2z = 8$ and $4x + 2y + 4z + 5 = 0$ is:

$\frac{3}{2}$
$\frac{5}{2}$
$\frac{7}{2}$✔️
$\frac{9}{2}$

Correct Answer Logic:

First, convert both planes to the same form. The second plane $4x + 2y + 4z + 5 = 0$ can be written as $2x + y + 2z + \frac{5}{2} = 0$ by dividing by 2. Now both planes have the form $2x + y + 2z = d$. For the first plane, $d_1 = 8$ and for the second, $d_2 = -\frac{5}{2}$. The distance formula between parallel planes is $d = \frac{|d_1 - d_2|}{\sqrt{a^2 + b^2 + c^2}}$ where $a=2, b=1, c=2$. Thus $d = \frac{|8 - (-\frac{5}{2})|}{\sqrt{4+1+4}} = \frac{|\frac{21}{2}|}{3} = \frac{21}{6} = \frac{7}{2}$.

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Math Physics Chemistry Biology QUESTION #11378

Question 7039

________ are spherical sacs surrounded by a single membrane containing hydrolytic enzymes:

Mitochondria
Body vesicles
Lysosomes✔️
Chloroplast

Correct Answer Logic:

Lysosomes are membrane-bound spherical sacs containing over 50 hydrolytic (digestive) enzymes including proteases, lipases, nucleases, and glycosidases. These enzymes function optimally at the acidic pH (~4.8) maintained inside the lysosome. They digest worn-out organelles, pathogens, and macromolecules.

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Math Physics Chemistry Biology QUESTION #735

Question 7040

If the radius of circle is doubled then centripetal force becomes:

Doubled
Remains same
Half✔️
Reduces four times

Correct Answer Logic:

Centripetal force F = mv²/r. If r is doubled F becomes mv²/2r = F/2. So the force is halved.

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