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Geography QUESTION #1237

Which of the following has been the oldest remote sensing programme?

NOAA
LANDSAT✔️
SPOT
None of these

Correct Answer Logic:

LANDSAT is the oldest and longest-running Earth observation satellite programme, initiated by the USA. The first LANDSAT satellite (originally called ERTS-1) was launched in 1972, making it the pioneer in civilian remote sensing programmes. NOAA satellites began later (1970s weather satellites), and SPOT (France) was launched in 1986.

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Mechanical Engineering QUESTION #2387

Question 2

For a type-one system (one integrator in the open-loop transfer function) with a ramp input $X_i(s)=1/s^2$, the steady-state error is:

$E_s = 0$
$E_s = \frac{1}{K_v}$ where $K_v = \lim_{s\to 0} sY_1(s)$ (velocity error constant)✔️
$E_s = \infty$
$E_s = 1$

Correct Answer Logic:

For a ramp input with a type-one system: $E_s=\lim_{s\to 0}\frac{s}{1+Y_1(s)}\cdot\frac{1}{s^2}=\frac{1}{\lim_{s\to 0}sY_1(s)}=\frac{1}{K_v}$. The velocity error constant $K_v=\lim_{s\to0}sY_1(s)$.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3141

Question 3

Which hormone is responsible for the 'Milk Ejection' reflex and uterine contractions?

Prolactin
Oxytocin✔️
Estrogen
Progesterone

Correct Answer Logic:

Oxytocin is the 'bonding' and 'contraction' hormone.

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English QUESTION #492

Question 4

She had left him with a calmness and a poise that accord well with his own inward emotions.

had left
calmness and a poise that accord
well with
own inward✔️

Correct Answer Logic:

Error: 'accord' should be 'accorded'

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City and Regional Planning QUESTION #4993

Question 5

What is the primary limitation of the Concentric Zone Model (Burgess Model)?

Ignores transportation corridors
Assumes monocentric development only✔️
Overemphasizes industrial zones
Excludes residential areas

Correct Answer Logic:

The Burgess Concentric Zone Model (1925) assumes a single central business district with zones expanding outward in concentric circles, failing to account for multiple nuclei, sector development along transport routes, or polycentric urban forms common in modern cities.

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Architecture QUESTION #2354

Question 6

The Atterberg limit defining the minimum water content at which a soil behaves as a liquid (loses shear strength) and can be quantified by the Casagrande apparatus is:

Plastic Limit (PL)
Shrinkage Limit (SL)
Liquid Limit (LL)✔️
Flow Limit (FL)

Correct Answer Logic:

The Liquid Limit (LL) is the minimum water content at which a soil flows as a liquid under a small standardized shear force. It is determined using the Casagrande cup apparatus (25 blows to close a groove) or the cone penetrometer. The Plastic Limit (PL) is the minimum water content at which soil can be rolled into a 3 mm thread. The Plasticity Index PI = LL - PL.

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Therapeutics and Patient Care QUESTION #3868

Question 7

For a patient experiencing severe cancer-related bone pain, which analgesic agent offers the most appropriate and effective relief?

Meloxicam✔️
Fentanyl
Amitriptyline
Carbamazepine

Correct Answer Logic:

NSAIDs like meloxicam are particularly effective for bone pain due to their prostaglandin-inhibiting mechanism, which reduces the osteoclast-driven pain of metastatic bone disease.

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Biology QUESTION #4209

Question 8

Which of the following organ takes part in the T-cell maturation for both the lymphatic and endocrine systems?

Spleen
Thymus✔️
Liver
Kidney

Correct Answer Logic:

Thymus is where T-cells mature.

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Boilers Mechanical Engineering QUESTION #4046

Question 9

'Balanced Draft' means:

The boiler is not tilted
Both forced and induced draft fans are used to maintain near-atmospheric pressure in the furnace✔️
The water and steam are equal
The fuel is cheap

Correct Answer Logic:

This prevents flue gas leakage into the boiler room.

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Physics QUESTION #1172

Question 10

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.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3569

Question 11

'Mayer's Reagent' produces what color precipitate with alkaloids?

Blue
Cream/White✔️
Red
Black

Correct Answer Logic:

A cream or white precipitate indicates the presence of alkaloids.

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Chemistry QUESTION #471

Question 12

Acetic acid is called __________ acid.

Methanoic
Propanoic
Ethanoic✔️
Butanoic

Correct Answer Logic:

Acetic acid is ethanoic acid

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Commerce QUESTION #1226

Question 13

Which of the following enjoys limited liability?

A general partnership.
A corporation.✔️
A sole proprietorship.
None of these

Correct Answer Logic:

A corporation (company) is a separate legal entity from its owners (shareholders). Shareholders enjoy limited liability — their personal assets are protected, and they can only lose the amount they invested. In a general partnership, all partners have unlimited personal liability. In a sole proprietorship, the owner has unlimited liability.

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Professional QUESTION #1866

Question 14

Under Rule 13, who can approve relaxation of the citizenship requirement for appointment?

Prime Minister
Ministry concerned
Establishment Division✔️
FPSC

Correct Answer Logic:

Rule 13 proviso states the citizenship requirement may be relaxed with the approval of the Establishment Division.

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Physics QUESTION #373

Question 15

The Lenz's law refers to induced __________

emf
Resistance
Shear
Currents✔️

Correct Answer Logic:

Lenz's law describes the direction of induced currents

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Biology QUESTION #4275

Question 16

The first consequence of lymphatic blockage in tissues is:

Deficiency of oxygen
Loss of nerve signals
Drop in blood pressure
Excess fluid accumulation in tissue✔️

Correct Answer Logic:

When lymphatic vessels are blocked, lymph cannot drain from tissues, leading to accumulation of interstitial fluid, causing edema (swelling).

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Architecture QUESTION #2359

Question 17

In LEED (Leadership in Energy and Environmental Design) v4 rating system, which credit category directly addresses the reduction of volatile organic compound (VOC) emissions from interior finishes to improve Indoor Environmental Quality?

Materials and Resources (MR)
Indoor Environmental Quality (EQ)✔️
Sustainable Sites (SS)
Energy and Atmosphere (EA)

Correct Answer Logic:

Indoor Environmental Quality (EQ) credits in LEED v4 directly address VOC content limits for paints, coatings, adhesives, sealants, flooring, composite wood, and ceiling/wall assemblies. High VOC emissions from interior finishes cause poor indoor air quality and are linked to sick building syndrome. The Materials and Resources category focuses on material sourcing, recycled content, and waste reduction.

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Electrical Engineering QUESTION #2151

Question 18

The Skin Effect in a conductor is more prominent at:

DC (Zero frequency)
Low frequencies
High frequencies✔️
All frequencies equally

Correct Answer Logic:

Skin effect, where current density is highest near the surface, increases as the frequency $f$ increases due to the decrease in skin depth $\delta = \sqrt{\frac{2}{\omega\mu\sigma}}$.

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Economics QUESTION #1689

Question 19

The Human Development Index (HDI), published by the UNDP, ranks countries on a normalised scale of:

0 to 1✔️
1 to 100
$-1$ to $+1$
None of these

Correct Answer Logic:

The Human Development Index (HDI) is a composite index measuring average achievements in three key dimensions of human development: (1) long and healthy life (life expectancy), (2) knowledge (education), and (3) decent standard of living (GNI per capita). It is normalised on a scale from 0 (lowest) to 1 (highest). Countries are classified as very high, high, medium, or low human development based on their HDI score.

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Therapeutics and Patient Care QUESTION #3886

Question 20

Which of the following agents should NOT be used as a topical treatment for acne vulgaris?

Salicylic acid
Sulfur
Hydrocortisone✔️
Benzoyl peroxide

Correct Answer Logic:

Topical hydrocortisone is not indicated for acne vulgaris and may worsen acne by promoting follicular occlusion and steroid-induced acne. Salicylic acid, sulfur, and benzoyl peroxide are established acne treatments.

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