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Economics QUESTION #1697

Automatic stabilisers — mechanisms that automatically moderate economic fluctuations without requiring new legislative action — are instruments of which branch of economic policy?

Monetary policy
Trade policy
Fiscal policy✔️
Investment policy

Correct Answer Logic:

Automatic stabilisers are built-in features of the fiscal system (taxation and government spending) that automatically moderate business cycle fluctuations. Examples include progressive income taxes (tax revenues fall automatically in recessions, reducing the tax burden) and unemployment benefits (government spending automatically rises in downturns, supporting demand). They are fiscal policy tools — not monetary, trade, or investment policy instruments.

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Public Administration QUESTION #2921

Question 802

What is the main focus of "Scientific Management" as proposed by Taylor?

Employee well-being
Operational efficiency and productivity✔️
Democratic participation
Creative freedom

Correct Answer Logic:

Taylorism focuses on optimizing tasks and workflows through scientific observation to achieve maximum output.

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Biology Zoology Botany QUESTION #1383

Question 803

In angiosperms, how many nuclei are present in a mature embryo sac?

6
7
8✔️
9

Correct Answer Logic:

A mature angiosperm embryo sac (megagametophyte) contains 8 nuclei organised into 7 cells: 3 antipodal cells (3 nuclei), 2 synergid cells (2 nuclei), 1 egg cell (1 nucleus), and 1 central cell with 2 polar nuclei (2 nuclei). Total = 3+2+1+2 = 8 nuclei in 7 cells. This is the standard Polygonum-type embryo sac.

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Professional QUESTION #1855

Question 804

Promotions and transfers to posts in BPS 19 to 21 shall be made on the recommendation of which body?

Departmental Promotion Committee
Federal Public Service Commission
Selection Boards✔️
Establishment Division

Correct Answer Logic:

Rule 7 states that promotions and transfers to posts in BPS 19 to 21 and equivalent shall be made on the recommendation of the Selection Boards.

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Biology Zoology Botany QUESTION #1374

Question 805

The cell wall of fungi is primarily composed of:

Cellulose
Chitin✔️
Pectin
Lignin

Correct Answer Logic:

The cell wall of fungi is primarily composed of chitin — a nitrogen-containing polysaccharide made of N-acetylglucosamine units linked by β-1,4-glycosidic bonds. This is a key distinguishing feature of fungi from plants (whose cell walls contain cellulose). Chitin provides structural strength and rigidity to the fungal cell wall.

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Professional QUESTION #1878

Question 806

Under which legislative authority were the Government Servants (Efficiency and Discipline) Rules 1973 framed?

Section 25 of Civil Servants Act 1973
Section 20 of Civil Servants Ordinance 1973
Section 25 of Civil Servants Ordinance 1973 (No. XIV of 1973)✔️
Article 240 of the Constitution of Pakistan

Correct Answer Logic:

Rule 1 clearly states these rules were made under Section 25 of the Civil Servants Ordinance 1973 (No. XIV of 1973).

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Chemistry QUESTION #429

Question 807

The process of effusion is best understood by __________ law.

Graham's✔️
Charles's
Boyle's
None of these

Correct Answer Logic:

Graham's law describes effusion rates

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Mathematics QUESTION #4150

Question 808

What is the general solution of $y'' - 3y' + 2y = 0$?

$y = c_1e^x + c_2e^{2x}$✔️
$y = c_1e^{-x} + c_2e^{-2x}$
$y = c_1\cos(x) + c_2\sin(x)$
$y = e^x(c_1 + c_2x)$

Correct Answer Logic:

Characteristic: $r^2 - 3r + 2 = 0 \Rightarrow (r-1)(r-2) = 0 \Rightarrow r = 1, 2$. General solution: $y = c_1e^x + c_2e^{2x}$.

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Pakistan Affairs QUESTION #310

Question 809

Who was the first leader of opposition in the first National Assembly under the 1962 constitution?

Sardar Bahadur Khan✔️
Hussain Shaheed
Syed Fakhar Imam
Ghulam Haider Wain

Correct Answer Logic:

Sardar Bahadur Khan, brother of Ayub Khan, served as the first leader of the opposition.

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3041

Question 810

'Pyrogens' are:

Chemical preservatives
Fever-producing substances from bacteria✔️
Types of viruses
Coloring agents

Correct Answer Logic:

Pyrogens are metabolic products of microorganisms that cause a rise in body temperature if injected.

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Boilers Mechanical Engineering QUESTION #4013

Question 811

The 'Deaerator' in a steam plant removes:

Solids
Dissolved gases like Oxygen and $CO_2$✔️
Steam bubbles
Oil

Correct Answer Logic:

Removing oxygen is critical to prevent 'Pitting' corrosion in the boiler and pipes.

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GATE Engineering Mathematics QUESTION #3772

Question 812

In the Fourier series representation of a periodic square wave, what is the term for the oscillations appearing near jump discontinuities?

Cauchy effect
Fourier fluctuation
Gibbs phenomenon✔️
Laplace oscillation

Correct Answer Logic:

The Gibbs phenomenon describes the behavior of Fourier series at points of discontinuity.

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Urdu QUESTION #5143

Question 813

درست تلفظ کا انتخاب کریں؟

اسلام و علیکم
اسلام علیکم
سلام علیکم
ان میں سے کوئی نہیں✔️

Correct Answer Logic:

درست تلفظ 'السلام علیکم' ہے۔ آداب و سلامتی کے ان الفاظ کا صحیح ادا کرنا ضروری ہے۔

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Electrical Engineering QUESTION #2164

Question 814

A BJT common-emitter amplifier has $\beta = 100$, $R_C = 4\,\text{k}\Omega$, and $I_{C,Q} = 1\,\text{mA}$. The small-signal voltage gain $A_v$ (neglecting $r_o$) is:

$-154$✔️
$+154$
$-400$
$-100$

Correct Answer Logic:

$g_m = I_C/V_T = 1\,\text{mA}/26\,\text{mV} \approx 38.5\,\text{mS}$. $A_v = -g_m R_C = -38.5\,\text{mS} \times 4\,\text{k}\Omega \approx -154$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3227

Question 815

'Hypoglycemia' is characterized by:

High blood sugar
Low blood sugar✔️
High blood pressure
Low oxygen

Correct Answer Logic:

Low blood sugar can lead to confusion, dizziness, and fainting.

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Agronomy QUESTION #2111

Question 816

Integrated soil fertility management (ISFM) is distinguished from conventional fertilizer recommendations by:

Replacing all synthetic fertilizers with organic inputs only
Combining the use of improved germplasm, mineral fertilizers, and organic resources in a site-specific manner that leverages synergistic interactions — where organic matter improves the efficiency of mineral fertilizers and mineral fertilizers accelerate organic matter decomposition and nutrient release — targeting smallholder farming systems in sub-Saharan Africa and South Asia✔️
Using only locally available organic materials regardless of their nutrient content or crop nutrient demand
Applying mineral fertilizers at maximum agronomic doses to build soil fertility rapidly

Correct Answer Logic:

ISFM (Vanlauwe et al.) is based on four components: (1) use of improved varieties responsive to inputs, (2) appropriate mineral fertilizer application, (3) organic resource management, and (4) local adaptation. Key insight: organic inputs alone rarely meet crop demand, but combined with mineral fertilizers, organic matter improves fertilizer response through enhanced soil biological activity, water retention, and reduced P-fixation — achieving yield responses greater than either input alone.

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Boilers Mechanical Engineering QUESTION #4044

Question 817

'Firebricks' are categorized as:

Insulators
Refractories✔️
Conductors
Fuels

Correct Answer Logic:

They line the furnace to protect the outer steel structure.

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Boilers Mechanical Engineering QUESTION #4004

Question 818

When performing a Hydraulic Test, why is 'Air' removed from the boiler completely?

Air is too expensive
Compressed air stores massive energy and can cause an explosion if the boiler fails✔️
Air makes the water turn green
Air helps the boiler to float

Correct Answer Logic:

Water is incompressible; if the vessel ruptures during a hydrotest, there is no 'blast' like there would be with air/steam.

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Psychology QUESTION #1460

Question 819

Which type of memory has the longest duration and largest capacity, often storing information for a lifetime?

Sensory memory
Short-term memory
Long-term memory✔️
Working memory

Correct Answer Logic:

Long-term memory (LTM) has virtually unlimited capacity and can store information for a lifetime. It includes declarative memory (explicit: episodic and semantic) and non-declarative memory (implicit: procedural, priming). Sensory memory lasts milliseconds; short-term memory holds about 7±2 items for 15–30 seconds; working memory is the active, limited-capacity system for immediate cognitive tasks.

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Boilers Mechanical Engineering QUESTION #4017

Question 820

'Convection' heat transfer in a boiler happens primarily when:

Heat travels through the metal wall
Hot gases flow over the tube surfaces✔️
The sun shines on the boiler
Chemicals are added to the water

Correct Answer Logic:

Radiation happens in the furnace; Conduction happens through the tube walls.

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