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Information Technology QUESTION #1143

32 bits
64 bits
128 bits✔️
256 bits

Correct Answer Logic:

IPv6 uses a 128-bit address space, providing 2128 unique addresses, which is significantly larger than IPv4's 32-bit limit.

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Dairy Food Science and Technology QUESTION #5922

Question 942

Which statement about UHT milk is TRUE?

UHT milk must be stored refrigerated immediately after production
UHT milk can be stored at room temperature for $6\text{–}9$ months due to commercial sterility achieved by aseptic processing ($135\text{–}150^{\circ}\text{C}$ for $2\text{–}5$ s) and packaging✔️
UHT milk has a higher nutritional value than HTST-pasteurized milk due to higher temperature use
UHT processing completely destroys all vitamins in milk

Correct Answer Logic:

UHT milk achieves commercial sterility and is packaged aseptically, allowing ambient storage for $6\text{–}9$ months. However UHT treatment causes more heat damage than HTST: lysine loss ($\approx 5\text{–}10\%$), thiamine loss ($\approx 5\text{–}20\%$), and slight cooked flavor from $\text{H}_2\text{S}$ release and Maillard reactions.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3299

Question 943

'Active Immunity' differs from 'Passive Immunity' because it involves:

Injection of pre-formed antibodies
The body's own production of antibodies and memory cells✔️
A short duration of protection
No immune response

Correct Answer Logic:

Active immunity is slower to develop but provides long-lasting protection.

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Paper-II (Pharmacology and Social Behaviour, Law & Ethics and Computer Sciences) QUESTION #5789

Question 944

According to the material, the 'Trial' stage in the adoption process involves:

Interest seeking
Evaluating benefits
Applying the idea✔️
Awareness

Correct Answer Logic:

Trial involves the application of an idea on a small scale[cite: 7].

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Quantitative Reasoning QUESTION #8051

Question 945

VERITABLE: Choose the word most nearly opposite in meaning to this word.

impetuous
pernicious
inefficacious
specious✔️

Correct Answer Logic:

VERITABLE means real, genuine, or authentic — truly what it is said to be. Its antonym is specious, which means appearing valid or genuine on the surface but actually false or misleading. 'Impetuous' means acting on impulse. 'Pernicious' means harmful. 'Inefficacious' means not producing the desired effect. Only 'specious' (false appearance of truth) directly opposes 'veritable' (genuine truth).

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English QUESTION #499

Question 946

A day later he reached his first glimpse of Lahore.

A day later he reached his first glimpse of Lahore.
A day later he took his first glimpse of Lahore.
A day later he found his first glimpse of Lahore.
A day later he caught his first glimpse of Lahore.✔️

Correct Answer Logic:

'Caught his first glimpse' is idiomatic

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3676

Question 947

'Tannins' give a bluish-black or greenish-black color with:

Ferric Chloride✔️
Iodine
Water
Alcohol

Correct Answer Logic:

This is a standard chemical test for tannins.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5734

Question 948

What is the defining characteristic of 'Ambulatory Care' compared to 'Inpatient Care'?

The patient stays overnight
The patient receives treatment without being admitted✔️
The patient is in a coma
The patient is undergoing major surgery

Correct Answer Logic:

Ambulatory care is provided to outpatients who are not admitted.

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Education QUESTION #7593

Question 949

Which is the most appropriate method for obtaining insight into hidden or underlying motivations of individuals?

Non-directive interview✔️
Unstandardized interview
Structured interview
None of these

Correct Answer Logic:

Non-directive (or unstructured) interviews allow respondents to express themselves freely, revealing deeper motivations and feelings that might not emerge in structured formats.

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English QUESTION #2798

Question 950

Complete the ANALOGY — an analogy shows a relationship between pairs of words: 'Doctor : Hospital :: Teacher : ___'

Office
Library
School✔️
University

Correct Answer Logic:

This analogy shows a 'worker : workplace' relationship. A doctor works in a hospital; a teacher works in a school. The relationship is: professional person to the place where they primarily work.

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Boilers Mechanical Engineering QUESTION #4038

Question 951

'Blow-down' water should ideally be:

Dumped into the street
Passed through a heat recovery system if possible✔️
Reused for drinking
Frozen into ice

Correct Answer Logic:

Heat from blow-down can be used to heat feed water.

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Boilers Mechanical Engineering QUESTION #2398

Question 952

Archimedes' principle states that the buoyant force on a submerged (or floating) body equals:

Weight of the body
Weight of fluid displaced by the body✔️
Pressure at the centroid times surface area
Volume of the body times its own density

Correct Answer Logic:

Archimedes' principle: buoyant force $F_B=\gamma_{fluid}\times V_{displaced}$ — equals the weight of fluid displaced.

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Chemistry QUESTION #7128

Question 953

Which of the following reagent systems is specifically used to produce trans-alkenes from the reduction of alkynes?

$H_{2}$ with $Pd/C$ and $BaSO_{4}$
$NaBH_{4}$
$Na$ in liquid $NH_{3}$✔️
$Sn$ and $HCl$

Correct Answer Logic:

The reduction of non-terminal alkynes using sodium ($Na$) or lithium ($Li$) in liquid ammonia ($NH_3$) follows a free-radical mechanism that leads to the formation of the more stable trans-alkene (Birch reduction). Conversely, Lindlar's catalyst ($H_2, Pd/C, BaSO_4$) would yield a cis-alkene.

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Economics QUESTION #1692

Question 954

In the IS-LM model of macroeconomic equilibrium, the LM curve traces out all combinations of income and interest rates at which:

The goods and services market is in equilibrium
The government budget is balanced
The money market (financial market) is in equilibrium✔️
None of these

Correct Answer Logic:

The LM curve (L = Liquidity preference, M = Money supply) represents all combinations of real income (Y) and interest rate (r) at which the money market is in equilibrium — where money demand equals money supply ($L(Y, r) = M/P$). As income rises, money demand increases, requiring a higher interest rate to maintain equilibrium. The IS curve represents equilibrium in the goods market.

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General Abilities QUESTION #4610

Question 955

Solve: $7 - 2x = 1$

$x = 3$✔️
$x = 4$
$x = -3$
$x = 6$

Correct Answer Logic:

$7 - 2x = 1 \Rightarrow -2x = -6 \Rightarrow x = 3$

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Math Physics Chemistry Biology QUESTION #4183

Question 956

The event that occurs first during skeletal muscle contraction?

Cross-bridge formation
Release of calcium from sarcoplasmic reticulum✔️
Power stroke
Myosin head binds to ATP

Correct Answer Logic:

Calcium release from sarcoplasmic reticulum is the first event that triggers muscle contraction.

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Economics QUESTION #1711

Question 957

Pakistan's primary energy mix has historically been characterised by a structural dependence on which energy source, making the country highly vulnerable to global commodity price shocks and foreign exchange pressures?

Domestically generated renewable energy (solar, wind, hydro)
Imported fossil fuels — particularly furnace oil and liquefied natural gas (LNG)✔️
Nuclear energy as the baseload generation source
None of these

Correct Answer Logic:

Pakistan's electricity generation has been heavily reliant on imported furnace oil (for thermal power plants) and, more recently, imported LNG. This dependence on imported fossil fuels creates a double vulnerability: (1) exposure to volatile global oil and gas prices, and (2) severe foreign exchange drain contributing to balance of payments pressure. The circular debt crisis in the power sector is partly rooted in this structural dependency on expensive imported fuels.

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CISA QUESTION #6824

Question 958

An organization implements compensating controls because technical separation of duties is not feasible in a small IT department. What must the auditor verify for these compensating controls to be acceptable?

Controls are documented
Controls provide equivalent risk mitigation to the original control requirement and are actively monitored✔️
Controls are approved by management
Controls are less expensive than original controls

Correct Answer Logic:

Compensating controls must provide equivalent risk reduction to the original control and must be actively monitored and enforced. Simply documenting or obtaining approval is insufficient—the controls must demonstrably mitigate the same risks that separation of duties would address.

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Physics QUESTION #7039

Question 959

In SI units, a material's density is $128 \text{ kg m}^{-3}$. Calculate its numerical value in a system where the unit of length is $25 \text{ cm}$ and the unit of mass is $50 \text{ g}$.

$40$✔️
$16$
$640$
$410$

Correct Answer Logic:

Using $n_1 u_1 = n_2 u_2$:

$128 \times [\text{kg} \cdot \text{m}^{-3}] = n_2 \times [(50 \text{ g}) \cdot (25 \text{ cm})^{-3}]$

$n_2 = 128 \times \left( \frac{1000 \text{ g}}{50 \text{ g}} \right) \times \left( \frac{25 \text{ cm}}{100 \text{ cm}} \right)^3$

$n_2 = 128 \times 20 \times \left( \frac{1}{4} \right)^3 = \frac{128 \times 20}{64} = 2 \times 20 = 40$.

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Islamic Studies QUESTION #8221

Question 960

The second pious caliph Hazrat Umar-bin-Khattab belonged to which tribe?

Banu Hashim
Banu Ummiya
Banu Addi✔️
Banu Tayam

Correct Answer Logic:

Hazrat Umar ibn al-Khattab (RA) belonged to the Banu Adiyy (Adi) clan of the Quraish tribe. This is the same answer as question 98. He was initially one of the fiercest opponents of Islam but became one of its strongest supporters after his conversion. His justice, administrative skills, and military conquests during his 10-year caliphate (634-644 CE) expanded the Islamic empire to include Persia, Jerusalem, Egypt, and parts of the Byzantine Empire.

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