Reading Mode - Questions

Islamic Studies QUESTION #237

Question 1

The author of Kitab al-Hind is:

Amir Khusrau
Abu al-Fazl
Abu Rayhan al-Biruni✔️
None of these

Correct Answer Logic:

Al-Biruni wrote this comprehensive study of Indian culture, religion, and science.

Uploaded by: Fani Warraich

Mathematics QUESTION #6034

Question 2

Find the set $K$ of all real $x$ where $f(x)=\sin|x|-|x|+2(x-\pi)\cos|x|$ is not differentiable.

$\emptyset$ (empty set)✔️
$\{\pi\}$
$\{0\}$
$\{0,\pi\}$

Correct Answer Logic:

Check $x=0$: Write $h(x)=\sin|x|-|x|$. For $x>0$: $h(x)=\sin x-x$, $h'(x)=\cos x-1$. For $x<0$: $h(x)=-\sin x+x$, $h'(x)=-\cos x+1$. At $x=0$: left limit $=0$, right limit $=0$ — differentiable.

The term $2(x-\pi)\cos|x|$ is clearly differentiable everywhere (product of smooth functions, since $\cos|x|$ is even and smooth).

At $x=\pi$: $\cos|\pi|=\cos\pi=-1$, and all parts are smooth for $x>0$.

Therefore $f$ is differentiable everywhere and $K=\boldsymbol{\emptyset}$.

Uploaded by: Fani Warraich

Dairy Food Science and Technology QUESTION #5909

Question 3

Detection of starch adulteration in milk involves adding iodine solution. A positive test gives:

A red/pink coloration due to casein-iodine complex
A deep blue-black coloration due to amylose-$\text{I}_2$ complex formation✔️
A yellow precipitate due to starch hydrolysis
No color change; starch is detected by microscopy only

Correct Answer Logic:

Iodine solution (Lugol's iodine or dilute $\text{I}_2/\text{KI}$) reacts with the helical structure of amylose to form an amylose-iodine inclusion complex producing an intense blue-black color. This is a qualitative test for starch adulteration in milk.

Uploaded by: Fani Warraich

Chemistry QUESTION #433

Question 4

Which element forms long chains alternating with oxygen?

Carbon
Silicon
Nitrogen
All of these✔️

Correct Answer Logic:

Silicon, carbon and other elements can form chains with oxygen

Uploaded by: Fani Warraich

Administration QUESTION #9566

Question 5

The concept of 'matrix organization' is described as combining functional and project/product departmentalization. Which structural problem inherent in matrix organizations is most likely to arise in a government context where hierarchical authority is deeply entrenched?

Geographic dispersion of activities makes matrix coordination impractical in government field operations
Conflict between functional managers and project managers over authority and resources is exacerbated in government by strong hierarchical norms and formal scalar authority✔️
Matrix structures require cross-trained generalist employees, conflicting with the specialization demands of government occupational groups
Performance appraisal in matrix organizations requires dual reporting lines that are incompatible with the ACR system used in government

Correct Answer Logic:

Matrix organizations create a dual authority structure where employees report to both functional and project managers. In government, where Weber's hierarchical authority and scalar principle are institutionally entrenched (unity of command, clear lines of accountability), this ambiguity of authority creates irresolvable conflicts over resource allocation, decision rights and accountability — making matrix structures particularly problematic in public bureaucracies.

Uploaded by: Fani Warraich

General Abilities QUESTION #4561

Question 6

A number increased by $25\%$ becomes $50$. What was the original number?

$37.5$
$40$✔️
$62.5$
$75$

Correct Answer Logic:

If $x(1 + 0.25) = 50$, then $1.25x = 50$, so $x = \frac{50}{1.25} = 40$

Uploaded by: Fani Warraich

Education QUESTION #6731

Question 7

In problem-based learning, the teacher's role shifts from content deliverer to:

Passive observer only✔️
Facilitator who designs problems
guides inquiry
and provides resources

Correct Answer Logic:

Peer collaborator with no expertise advantage

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #6081

Question 8

A firm maintains an allowance for doubtful debts at 5% of trade receivables. This year, trade receivables were $8,000, which represented a 20% decrease from the previous year. How will this change affect the current year's profit?

Decrease by $100
Decrease by $400
Increase by $100✔️
Increase by $400

Correct Answer Logic:

1. Current Receivables = $8,000. Current Allowance = $8,000 $\times$ 5% = $400.
2. Last Year Receivables = $8,000 / 0.80 = $10,000. Last Year Allowance = $10,000 $\times$ 5% = $500.
3. Change = $500 - $400 = $100 reduction in allowance.
A reduction in allowance is credited to the income statement, thus increasing profit by $100.

Uploaded by: Fani Warraich

Chemistry QUESTION #468

Question 9

Which of the following is pale yellow to reddish yellow in color?

Pb?O
PbO?
PbO✔️
2PbCO?.Pb(OH)?

Correct Answer Logic:

PbO (litharge) is pale yellow to reddish yellow

Uploaded by: Fani Warraich

Political Science QUESTION #6656

Question 10

Which Islamic thinker developed the 'Rise and Fall of Sovereign Power' cyclical theory?

Ibn-e-Khaldun✔️
Shah Waliullah
Ibn-e-Taymiyyah
None of these

Correct Answer Logic:

Ibn-e-Khaldun's 'Muqaddimah' introduces the theory of Asabiyyah and the cyclical nature of dynasties.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3568

Question 11

Which drug is an 'Expectorant' (helps clear mucus)?

Senna
Vasaka (Adhatoda)✔️
Aloe
Castor oil

Correct Answer Logic:

Vasaka is a traditional remedy for bronchitis and cough.

Uploaded by: Fani Warraich

Law QUESTION #9495

Question 12

A plaintiff institutes a suit for recovery of a loan on the basis of a promissory note. The defendant files a written statement but does not raise the defence of limitation. The Court frames issues but the defendant never raises limitation at trial. Can the Court, on its own motion, dismiss the suit on the ground that it is time-barred?

Yes; under the Limitation Act, every suit filed after the prescribed period is barred, and the Court must dismiss it regardless of whether it is pleaded, if the suit is apparently time-barred on the face of the plaint✔️
Yes; but only in appeals
No; limitation must be specifically pleaded by the defendant and the Court cannot raise it suo motu
No; a Court can only act on issues that are framed

Correct Answer Logic:

Section 3 of the Limitation Act 1908 imposes a mandatory obligation on every Court to dismiss a suit, appeal, or application that is prima facie time-barred, even if limitation has not been pleaded as a defence. The Court acts suo motu in such cases.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3322

Question 13

The 'Kirby-Bauer' test is used to determine:

The number of bacteria in a sample
Bacterial susceptibility to antibiotics✔️
The $pH$ of the media
The speed of flagellar movement

Correct Answer Logic:

It is the standard disk-diffusion method for antibiotic sensitivity testing.

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3596

Question 14

'Senna' and 'Aloe' belong to which chemical class of glycosides?

Saponin Glycosides
Anthraquinone Glycosides✔️
Cardiac Glycosides
Cyanophore Glycosides

Correct Answer Logic:

Anthraquinone glycosides are well known for their stimulant laxative properties.

Uploaded by: Fani Warraich

Physics QUESTION #7000

Question 15

A satellite orbits at height $h$ above Earth's surface (radius $R$; $h \ll R$). What is the minimum increase in orbital speed needed for the satellite to escape Earth's gravitational field? (Neglect atmosphere)

$\sqrt{gR}$
$\sqrt{gR/2}$
$\sqrt{gR}(\sqrt{2}-1)$✔️
$\sqrt{2gR}$

Correct Answer Logic:

For $h \ll R$, orbital radius $\approx R$.

Orbital velocity: $v_o = \sqrt{\frac{GM}{R}} = \sqrt{gR}$

Escape velocity from orbit at $R$: $v_e = \sqrt{\frac{2GM}{R}} = \sqrt{2gR}$

Minimum increase in speed:

$\Delta v = v_e - v_o = \sqrt{2gR} - \sqrt{gR} = \sqrt{gR}(\sqrt{2}-1)$

Uploaded by: Fani Warraich

Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3652

Question 16

'Nutmeg' (Jaiphal) is the dried:

Seed✔️
Aril
Bark
Root

Correct Answer Logic:

Myristica fragrans is the source of nutmeg (seed) and mace (aril).

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3533

Question 17

'Maceration' is a process where the drug is:

Boiled in water
Soaked in a solvent for a specific period at room temperature✔️
Burned to ash
Crushed into a fine powder only

Correct Answer Logic:

Maceration is a passive extraction process.

Uploaded by: Fani Warraich

Mathematics QUESTION #1293

Question 18

If $\vec{r} = x\hat{i} + y\hat{j} + z\hat{k}$ and $r = |\vec{r}|$, then $\nabla r^n$ equals:

$nr^{n-2}$
$nr^{n-1}\vec{r}$
$nr^{n-2}\vec{r}$✔️
$nr^n\vec{r}$

Correct Answer Logic:

Using the chain rule: $\nabla r^n = n r^{n-1}\nabla r$. Since $\nabla r = \dfrac{\vec{r}}{r}$, we get $\nabla r^n = n r^{n-1}\cdot\dfrac{\vec{r}}{r} = nr^{n-2}\vec{r}$.

Uploaded by: Fani Warraich