Reading Mode - Questions

Chemistry QUESTION #7152

The reaction of Zinc ($Zn$) with dilute $HNO_{3}$ and concentrated $HNO_{3}$ produces different nitrogen oxides. Identify the gases produced in each case respectively.

$NO_{2}$ and $NO$
$NO$ and $N_{2}O$
$NO_{2}$ and $N_{2}O$
$N_{2}O$ and $NO_{2}$✔️

Correct Answer Logic:

Zinc reacts with nitric acid in varying concentrations:

With dilute $HNO_{3}$: $4Zn + 10HNO_{3} \rightarrow 4Zn(NO_{3})_{2} + 5H_{2}O + N_{2}O$ (Nitrous oxide)
With concentrated $HNO_{3}$: $Zn + 4HNO_{3} \rightarrow Zn(NO_{3})_{2} + 2H_{2}O + 2NO_{2}$ (Nitrogen dioxide)

Uploaded by: Fani Warraich

Physics QUESTION #1172

Question 2

A charge moving in a uniform static magnetic field experiences:

A force perpendicular to magnetic field and velocity✔️
Increase in momentum
Decrease in momentum
Decrease in velocity

Correct Answer Logic:

The magnetic force on a moving charge is given by the Lorentz force: $\vec{F} = q(\vec{v} \times \vec{B})$. The cross product means the force is always perpendicular to both the velocity $\vec{v}$ and the magnetic field $\vec{B}$. Since the force is perpendicular to velocity, it does no work, so speed (and hence momentum magnitude and kinetic energy) remains unchanged.

Uploaded by: Fani Warraich

FIA Act QUESTION #9962

Question 3

Administration of the Agency vests in:

The Federal Government
The Director General✔️
The Cabinet Secretary
The Chief Justice

Correct Answer Logic:

Administration vests in the Director General under Section 4.

Uploaded by: Fani Warraich

Political Science QUESTION #6688

Question 4

The 18th Amendment to the Constitution of Pakistan (2010) primarily focused on:

Presidential Powers
Provincial Autonomy✔️
Judicial Appointments
None of these

Correct Answer Logic:

The 18th Amendment significantly increased provincial autonomy and removed the President's power to dissolve Parliament.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #4072

Question 5

'Purging' the furnace before ignition is done to:

Clean the dust
Remove any unburnt fuel/gases to prevent an explosion (mishap)✔️
Heat the furnace
Cool the burner

Correct Answer Logic:

A high-volume air purge is the first step in any safe burner start-up sequence.

Uploaded by: Fani Warraich

Geography QUESTION #1236

Question 6

GIS deals with which kind of data?

Numeric data
Binary data
Spatial data✔️
None of these

Correct Answer Logic:

Geographic Information Systems (GIS) primarily deal with spatial data — data that has a geographic or locational component (coordinates, geometry, topology). GIS is designed to capture, store, manage, analyze, and visualize spatially referenced data. While numeric and binary data exist within GIS, the defining characteristic is the spatial nature of the data.

Uploaded by: Fani Warraich

Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3552

Question 7

A drug that kills or expels intestinal worms is called an:

Antipyretic
Anthelmintic✔️
Analgesic
Antiemetic

Correct Answer Logic:

Drugs like Santonin are anthelmintics.

Uploaded by: Fani Warraich

Accounting & Finance QUESTION #1209

Question 8

In responsibility accounting, costs that a manager can directly influence are called:

Uncontrollable costs.
Fixed costs.
Indirect costs.
Controllable costs.✔️

Correct Answer Logic:

In responsibility accounting, controllable costs are those costs over which a manager has significant influence or authority within a given time period. A manager is held accountable only for controllable costs in their responsibility center. Uncontrollable costs are those beyond the manager's direct authority (e.g., allocated head office costs).

Uploaded by: Fani Warraich

Biology Zoology Botany QUESTION #10808

Question 9

Corticotropin-releasing hormone (CRH) stimulates the synthesis or secretion of which hormone from the pituitary gland?

TSH
ACTH✔️
GH
FSH

Correct Answer Logic:

CRH (Corticotropin-Releasing Hormone), secreted by the hypothalamus, stimulates the anterior pituitary to synthesise and release ACTH (Adrenocorticotropic Hormone). ACTH then acts on the adrenal cortex to stimulate cortisol production. This forms the HPA (Hypothalamic-Pituitary-Adrenal) axis, the primary stress response system. TSH is stimulated by TRH; FSH and LH by GnRH; GH by GHRH — all via separate hypothalamic hormones.

Uploaded by: Fani Warraich

Math (Module-1) QUESTION #5384

Question 10

A certain function $f$ is defined by $f(x) = 14 + 11x$. What is the value of $f(x)$ when $x = 2$?

$14$
$25$
$36$✔️
$39$

Correct Answer Logic:

Substitute $x = 2$ into the function: $f(2) = 14 + 11(2) = 14 + 22 = 36$.

Uploaded by: Fani Warraich

General Knowledge QUESTION #4778

Question 11

What is the name of Sri Lanka's official currency?

Rupiyah
Lek
Ringgit
Sri Lankan Rupee✔️

Correct Answer Logic:

The official currency of Sri Lanka is the Sri Lankan Rupee (LKR), which has been in use since 1872. Lek is Albanian, Ringgit is Malaysian.

Uploaded by: Fani Warraich

Pakistan Affairs QUESTION #126

Question 12

What is the total length of Pakistan's coastline?

758 km
1058 km✔️
1258 km
990 km

Correct Answer Logic:

The coastline of Pakistan is approximately 1058 km (sometimes cited as 1046 km) along the Arabian Sea.

Uploaded by: Fani Warraich

Boilers Mechanical Engineering QUESTION #2513

Question 13

The Soderberg criterion for fatigue is more conservative than the modified Goodman criterion because it uses which strength in place of $S_{ut}$?

Endurance limit $S_e$
Proof strength $S_p$
Yield strength $S_y$✔️
Fracture strength $S_f$

Correct Answer Logic:

The Soderberg criterion: $\frac{\sigma_a}{S_e}+\frac{\sigma_m}{S_y}=\frac{1}{n}$. It substitutes yield strength $S_y$ for ultimate strength $S_{ut}$. Since $S_y < S_{ut}$, the Soderberg line falls inside the Goodman line, making it more conservative.

Uploaded by: Fani Warraich

General Knowledge QUESTION #8637

Question 14

Maria Montessori was a famous educationist from which country?

French
Italian✔️
German
English

Correct Answer Logic:

Maria Montessori was Italian.

Uploaded by: Fani Warraich

Ability / HR / Governance / Special Education QUESTION #1898

Question 15

Under the proviso to Rule 5(1)(iii) the opportunity to show cause can be denied in what specific circumstance?

When the accused is abroad
When the accused has a previous conviction
In the interest of the security of Pakistan or any part thereof where the authority is satisfied it is not expedient✔️
When an Inquiry Committee has already been constituted

Correct Answer Logic:

The proviso to Rule 5(1)(iii) allows denial of show cause opportunity only when the authority is satisfied that in the interest of security of Pakistan it is not expedient to give such opportunity.

Uploaded by: Fani Warraich

Business, Public administration and Policy QUESTION #10498

Question 16

The concept of ambiguity in public administration primarily refers to:

The need for more precise job descriptions
The difficulty of specifying concrete and measurable objectives✔️
A lack of hierarchical structure within agencies
The challenge of separating political decisions from administrative ones

Correct Answer Logic:

Ambiguity in public administration refers to the inherent difficulty in clearly defining and measuring public policy objectives. Unlike private firms whose goals (profit) are quantifiable, public agencies must pursue multiple, often conflicting social goals that resist precise specification — making performance measurement and accountability structurally challenging.

Uploaded by: Fani Warraich

Mathematics QUESTION #6047

Question 17

If one diameter of the circle $x^2+y^2-4x+6y-12=0$ is a chord of a circle $S$ whose centre is $(-3,2)$, find the radius of $S$.

$5\sqrt{3}$✔️
$5$
$10$
$5\sqrt{2}$

Correct Answer Logic:

Circle: $x^2+y^2-4x+6y-12=0$ has centre $(2,-3)$ and radius $\sqrt{4+9+12}=5$.

A diameter of this circle is a chord of $S$. The diameter passes through $(2,-3)$ with length $10$, so the chord of $S$ has length $10$, meaning half-chord $=5$.

Centre of $S$ is $(-3,2)$. Distance from $(-3,2)$ to centre $(2,-3)$: $d=\sqrt{25+25}=5\sqrt{2}$.

The chord (diameter of inner circle) has its midpoint at $(2,-3)$, and $S$'s centre is at $(-3,2)$. Radius of $S$: $R=\sqrt{d^2+5^2}$... but wait: the diameter of the inner circle passes through $(2,-3)$. Distance from $(-3,2)$ to $(2,-3)$ is $5\sqrt{2}$. The chord (full diameter $=10$) is a chord of $S$, so $R^2=(5)^2+(5\sqrt{2})^2=25+50=75$, $R=5\sqrt{3}$.

Uploaded by: Fani Warraich

Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5798

Question 18

An 'Adulterated' drug is one which contains a color other than the one prescribed. True or False?

True✔️
False
Partially True
None of these

Correct Answer Logic:

Adulteration includes using unprescribed coloring agents[cite: 7].

Uploaded by: Fani Warraich

Adult Health [Medicine and Surgery] QUESTION #3921

Question 19

A 30-year-old male has a painful ulcer near the medial malleolus of his left leg. He has visible varicose veins and hyperpigmentation of the surrounding skin. What is the most appropriate management for this ulcer?

Application of compression bandaging✔️
Surgical debridement of the ulcer
Skin grafting
Systemic antibiotic therapy

Correct Answer Logic:

No explanation provided for this question.

Uploaded by: Fani Warraich

Therapeutics and Patient Care QUESTION #3879

Question 20

Which organism listed is inherently resistant to treatment with the broad-spectrum antibiotic clindamycin?

Staphylococcus saprophyticus
Clostridium perfringens
Haemophilus influenzae✔️
Actinomyces

Correct Answer Logic:

Clindamycin covers most gram-positive organisms and anaerobes but has no activity against gram-negative aerobic organisms like Haemophilus influenzae.

Uploaded by: Fani Warraich

More Options

Suggest a Question