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Information Technology QUESTION #1143
Question 941
What is the size of an IPv6 address?
  • 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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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].
Uploaded by: Fani Warraich
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).
Uploaded by: Fani Warraich
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
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
General Abilities QUESTION #4610
Question 955
Solve: $7 - 2x = 1$
  • $x = 3$✔️
  • $x = 4$
  • $x = -3$
  • $x = 6$
Correct Answer Logic:
$7 - 2x = 1 \Rightarrow -2x = -6 \Rightarrow x = 3$
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich
Correct Answer Logic:

Using $n_1 u_1 = n_2 u_2$:

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

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

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

Uploaded by: Fani Warraich
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.
Uploaded by: Fani Warraich