Reading Mode - Questions

Journalism / Mass Communication QUESTION #6363

Alexander Graham Bell received a patent for the telephone on March 7, 1876. Which of the following statements about Bell's invention is INCORRECT?

Bell's interest in telephony was derived from his background in vocal physiology and speech instruction to the deaf
Bell's breakthrough experiment occurred on June 2, 1875, when he and assistant Thomas Watson converted an intermittent current to a continuous current
Bell invented the telephone by improving Morse's telegraph and adding a speaker component without any prior experiment on sound transmission✔️
Bell's original telephone design was essentially a modified telegraph — the primary difference being that it could transmit true sound

Correct Answer Logic:

According to the textbook, Alexander Graham Bell's interest in the telephone was derived from his background in vocal physiology and his work teaching the deaf to speak. His breakthrough experiment took place on June 2, 1875, when he and his assistant Thomas Watson were working on a harmonic telegraph. A reed stuck on Watson's transmitter converted an intermittent current into a continuous current, which Bell heard on his receiver — confirming that sound could be transmitted electrically. Bell was awarded the patent on March 7, 1876. His original design was indeed a modified telegraph that could transmit true sound. Option C is the incorrect statement: Bell did not simply add a speaker to Morse's telegraph; he conducted years of experimental work on sound and electricity before arriving at a working telephone. His breakthrough was a genuine scientific achievement rooted in his study of human speech and vocal physiology.

Uploaded by: Fani Warraich

Civil / Architecture QUESTION #2363

Question 2242

In the analysis of indeterminate structures using the Flexibility (Force) Method, the compatibility equation for a structure with $n$ redundants is expressed in matrix form as:

$[F]\{X\} = \{D_0\}$
$[K]\{D\} = \{P\}$
$[F]\{X\} + \{D_0\} = \{0\}$✔️
$[K]\{X\} = -\{D_0\}$

Correct Answer Logic:

The compatibility equation in the Force Method is $[F]\{X\} + \{D_0\} = \{0\}$ (or equivalently $[F]\{X\} = -\{D_0\}$), where $[F]$ is the flexibility matrix (flexibility coefficients $f_{ij}$ = displacement at $i$ due to unit force at $j$), $\{X\}$ is the vector of redundants, and $\{D_0\}$ is the displacement vector of the released structure (primary structure) under applied loads. Option B is the stiffness method equation.

Uploaded by: Fani Warraich

Biomedical Sciences QUESTION #3803

Question 2243

Demyelination of nerve axons is the hallmark pathological feature of which neurological disorder?

Huntington's chorea
Multiple sclerosis✔️
Parkinson's disease
Tardive dyskinesia

Correct Answer Logic:

Multiple sclerosis is characterised by autoimmune destruction of the myelin sheath surrounding CNS axons, causing progressive neurological dysfunction.

Uploaded by: Fani Warraich

HR and Management QUESTION #6473

Question 2244

The interrelationship of HR functions suggests that:

HR functions operate independently in silos
HR functions are interconnected and affect each other✔️
Some HR functions are more important than others
HR functions can be eliminated without consequences

Correct Answer Logic:

HR functions are interconnected - staffing affects training needs; training affects performance; performance affects compensation; compensation affects retention; retention affects staffing. Effective HRM requires understanding and managing these interdependencies.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #2497

Question 2245

The section modulus $Z$ of a beam cross-section is defined as:

$Z = I \cdot c$
$Z = I / c$✔️
$Z = c / I$
$Z = I^2 / c$

Correct Answer Logic:

Section modulus $Z = I/c$, where $I$ is the second moment of area about the neutral axis and $c = y_{max}$ is the distance to the extreme fiber. The maximum bending stress becomes $\sigma_{max} = M/Z$.

Uploaded by: Fani Warraich

General Abilities QUESTION #3968

Question 2246

Calculate the value of the cube of $\frac{1}{3}$.

$\frac{3}{9}$✔️
$\frac{3}{27}$
$\frac{1}{81}$
$\frac{1}{27}$

Correct Answer Logic:

3

Uploaded by: Fani Warraich

Islamic Studies QUESTION #645

Question 2247

Dozy is the author of:

The Spirit of Islam
Spanish Islam✔️
History of Saracens
None of these

Correct Answer Logic:

Reinhart Dozy was a famous scholar known for his work Spanish Islam.

Uploaded by: Fani Warraich

Electrical Engineering QUESTION #2144

Question 2248

What is the primary function of a Buchholz Relay in a transformer?

Protection against external short circuits
Protection against internal gas-producing faults✔️
Regulation of secondary voltage
Measurement of core temperature

Correct Answer Logic:

A Buchholz relay is a gas-actuated safety device installed to detect internal faults like insulation breakdown or overheating that produce gas within the oil.

Uploaded by: Fani Warraich

Chemistry QUESTION #480

Question 2249

Sulphur has oxidation state of __________

?2
+ 4 and +6
None of these
Both A and B✔️

Correct Answer Logic:

Sulphur shows multiple oxidation states

Uploaded by: Fani Warraich

HR and Management QUESTION #6434

Question 2250

Total Quality Management (TQM) initiatives are programs designed to:

Reduce production costs by eliminating waste
Improve quality of all processes leading to final product or service✔️
Increase employee satisfaction scores
Automate manufacturing processes

Correct Answer Logic:

TQM programs are designed to improve the quality of all the processes that lead to a final product or service. In TQM, every aspect of the organization is oriented toward providing a quality product or service - it's a comprehensive quality philosophy.

Uploaded by: Fani Warraich

Chemistry QUESTION #7169

Question 2251

Match the following chemical items correctly: (A) Benzaldehyde, (B) Alumina, (C) Acetonitrile with their roles (P) Mobile phase, (Q) Adsorbent, (R) Adsorbate.

(A)-(Q); (B)-(P); (C)-(R)
(A)-(R); (B)-(Q); (C)-(P)✔️
(A)-(Q); (B)-(R); (C)-(P)
(A)-(P); (B)-(R); (C)-(Q)

Correct Answer Logic:

In chromatography and surface processes:

Benzaldehyde (Adsorbate): The substance that gets adsorbed.
Alumina (Adsorbent): The solid surface that provides sites for adsorption.
Acetonitrile (Mobile phase): The solvent/liquid that moves over the adsorbent.

Uploaded by: Fani Warraich

Civil Engineering QUESTION #6624

Question 2252

A reinforced concrete beam is subjected to a factored moment $M_u$. If the beam is designed as 'tension-controlled' according to ACI 318, what is the minimum net tensile strain $\epsilon_t$ in the extreme tension steel at the nominal strength?

0.002
0.003
0.004
0.005✔️

Correct Answer Logic:

According to ACI 318, a section is tension-controlled if the net tensile strain in the extreme tension steel is equal to or greater than 0.005 when the concrete in compression reaches its assumed strain limit of 0.003.

Uploaded by: Fani Warraich

Urdu QUESTION #5197

Question 2253

'آپے سے باہر ہونا' محاورے کا مطلب کیا ہے؟

شرمندہ ہونا
آب آب ہونا
بہت غصے میں ہونا✔️
بہت امیر ہونا

Correct Answer Logic:

آپے سے باہر ہونا محاورے کا مطلب ہے غصے یا جذبات پر قابو نہ رہنا۔

Uploaded by: Fani Warraich

Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5799

Question 2254

The development of 'Autonomy vs. Shame' typically occurs at what age?

Birth to 8 months
18 months to 3 years✔️
3 to 6 years
6 to 12 years

Correct Answer Logic:

Autonomy vs. Shame occurs between 18 months and 3 years[cite: 7].

Uploaded by: Fani Warraich

Chemistry QUESTION #5567

Question 2255

Arrange the following substituted phenols in decreasing order of acidity: (I) 4-chlorophenol, (II) 4-methylphenol, (III) 4-nitrophenol, (IV) 4-methoxyphenol

II > IV > I > III
I > II > III > IV
III > I > IV > II✔️
IV > III > I > II

Correct Answer Logic:

Acidity of phenols increases with electron-withdrawing groups (EWG) and decreases with electron-donating groups (EDG). $NO_2$ (strong EWG) makes phenol most acidic; $Cl$ (weak EWG); $CH_3$ and $OCH_3$ are EDGs (reduce acidity). Order of decreasing acidity: III ($NO_2$) > I ($Cl$) > II ($CH_3$) > IV ($OCH_3$), i.e., C is correct.

Uploaded by: Fani Warraich

Physics QUESTION #7311

Question 2256

A particle moves along a straight line with constant acceleration, changing speed from $10\text{ m/s}$ to $20\text{ m/s}$ while covering $135\text{ m}$. The time taken is:

12 s
9 s✔️
10 s
1.8 s

Correct Answer Logic:

Using $v^2 - u^2 = 2as$: $(20)^2 - (10)^2 = 2a(135) \Rightarrow 300 = 270a \Rightarrow a = \dfrac{10}{9}\text{ m/s}^2$

Using $v = u + at$: $20 = 10 + \dfrac{10}{9}t \Rightarrow t = \mathbf{9\text{ s}}$

Uploaded by: Fani Warraich

Dairy Food Science and Technology QUESTION #5994

Question 2257

In the production of lassi, the distinctive refreshing taste results from:

Addition of sugar and cream to fresh milk
Dilution of dahi (yoghurt) with water ($1:0.5\text{–}1:2$ ratio) producing a blend of lactic acid, acetaldehyde ($\approx 25\text{–}40\;\text{ppm}$), and diacetyl aromas in a lower-viscosity product✔️
Addition of synthetic flavorings to buttermilk
Fermentation of milk with kefir grains

Correct Answer Logic:

Lassi is made by blending dahi (yoghurt) with water and optionally sugar, salt, or spices. The characteristic flavor comes from fermentation metabolites: lactic acid (tart), acetaldehyde ($\approx 25\text{–}40\;\text{ppm}$, 'green/yoghurty' aroma), and diacetyl (buttery note). Dilution reduces viscosity and caloric density.

Uploaded by: Fani Warraich

Mathematics QUESTION #1289

Question 2258

The limit $\lim_{x\to0}\left(\dfrac{1}{\sin x}-\dfrac{1}{x}\right)$ equals:

1
$\infty$
$-1$

Correct Answer Logic:

Combine fractions: $\dfrac{x-\sin x}{x\sin x}$. As $x\to0$, numerator $x-\sin x\approx\dfrac{x^3}{6}$ and denominator $x\sin x\approx x\cdot x=x^2$. So the limit $\approx\dfrac{x^3/6}{x^2}=\dfrac{x}{6}\to0$. L'Hôpital or Taylor series confirms the limit is $0$.

Uploaded by: Fani Warraich

Physical Education QUESTION #6807

Question 2259

A Subject Specialist implementing 'Pragmatism' in Physical Education would most likely prioritize:

Strict adherence to historical sports rules
Activities that solve social problems and encourage democratic cooperation✔️
Individual isolation and solitary meditation
The memorization of physiological terminology

Correct Answer Logic:

Pragmatism emphasizes 'learning by doing' and the social utility of activities in a community setting.

Uploaded by: Fani Warraich

Library Sciences QUESTION #1561

Question 2260

Resource Description and Access (RDA) replaces which earlier cataloguing code and is structured around which conceptual model?

AACR1; MARC 21
ISBD; Dublin Core
AACR2; FRBR (Functional Requirements for Bibliographic Records)✔️
AACR2; UNIMARC

Correct Answer Logic:

RDA was developed as a successor to AACR2, structured around the FRBR (Functional Requirements for Bibliographic Records) and FRAD (Functional Requirements for Authority Data) conceptual models. It focuses on describing resources and their relationships rather than prescribing card-catalogue-era physical formats.

Uploaded by: Fani Warraich

More Options

Suggest a Question