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Math Physics Chemistry Biology QUESTION #523

Question 9421

Syphilis is caused by

Neisseria gonorrhoeae
Cats worm
Treponema pallidum✔️
Herpes simplex

Correct Answer Logic:

Treponema pallidum causes syphilis

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #3051

Question 9422

Mixing 'Acacia' with 'Alcohol' causes:

A new drug to form
Acacia to precipitate✔️
A change in flavor
No reaction

Correct Answer Logic:

Acacia is a gum; alcohol is a non-solvent for gums and will cause precipitation.

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Boilers Mechanical Engineering QUESTION #2394

Question 9423

The gain margin (GM) of a control system is defined as:

\(GM = 1/|Y_1(j\omega_{pc})|\) where \(\omega_{pc}\) is the phase crossover frequency (where phase \(= -180°\))✔️
\(GM = |Y_1(j\omega_{gc})|\) where \(\omega_{gc}\) is the gain crossover frequency
\(GM = \angle Y_1(j\omega_{gc})\)
The maximum gain before the system becomes underdamped

Correct Answer Logic:

Gain margin: \(GM=1/|Y_1(j\omega_{pc})|\) where \(\omega_{pc}\) is the phase crossover frequency (\(\angle Y_1=-180°\)). In dB: \(GM(dB)=-20\log|Y_1(j\omega_{pc})|\). GM indicates how much the gain can be increased before instability. Typically \(GM\geq6\) dB is desired.

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Security Measures to Maintain Law and Order QUESTION #869

Question 9424

Under Section 6(1)(e), the ASF is responsible for "prevention of hijacking." If a plane is hijacked on the tarmac, the primary ASF response is:

Storming the plane immediately
Containment and Cordon✔️
Refueling the plane
Direct negotiation

Correct Answer Logic:

The first priority for ground security is "containment"—preventing the aircraft from taking off and securing the perimeter.

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Pakistan Affairs QUESTION #7688

Question 9425

Pakistan faced a major electricity blackout in January 2023 affecting millions. What was the primary cause?

Cyberattack
Fuel shortage
Faulty grid synchronization✔️
None of these

Correct Answer Logic:

The nationwide power breakdown in January 2023 was caused by faulty grid synchronization when trying to restore power after a partial shutdown done to save fuel. The technical fault in the transmission system led to a cascading failure that left most of Pakistan without electricity for several hours.

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English Literature QUESTION #10725

Question 9426

The literary technique employed by James Joyce in his novels is known as:

Oblique narrative
Stream of Consciousness✔️
First person narrative
Naturalism

Correct Answer Logic:

Stream of Consciousness is the defining narrative technique of James Joyce. In works like Ulysses (1922) and A Portrait of the Artist as a Young Man (1916), Joyce represents the continuous flow of thoughts, feelings, memories, and associations passing through a character's mind, often without conventional punctuation or logical ordering. The technique was developed alongside Virginia Woolf and Dorothy Richardson.

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English Literature QUESTION #10720

Question 9427

What new system of printing books was developed in the 1400s?

Block Style Writing
Movable Type✔️
Calligraphy
Computer

Correct Answer Logic:

Movable Type printing was developed by Johannes Gutenberg in the 1440s–1450s in Germany, revolutionising book production. His Gutenberg Bible (~1455) was the first major book printed with this technology. Movable type allowed individual metal letters to be arranged, printed, and rearranged — making mass production of books possible for the first time. In England, William Caxton introduced printing in 1476.

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CISA QUESTION #6838

Question 9428

In evaluating disaster recovery procedures, an auditor finds that backup tapes are sent to an offsite facility but no verification testing has been conducted to confirm tapes can be successfully restored. What is the PRIMARY risk?

Incomplete documentation
Backups may be unrestorable rendering disaster recovery plan ineffective✔️
Increased storage costs
Delayed recovery time

Correct Answer Logic:

The ability to restore from backups is more critical than the existence of backups. Without restore testing, the organization cannot know if backups are valid, complete, or restorable. Many organizations have discovered during actual disasters that their untested backups were unusable—effectively having no backups at all.

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Security Measures to Maintain Law and Order QUESTION #836

Question 9429

Which international convention provides the global standard for "Law & Order" in civil aviation security?

Geneva Convention
Chicago Convention✔️
Kyoto Protocol
Vienna Convention

Correct Answer Logic:

The Chicago Convention (Annex 17) sets the international standards for safeguarding civil aviation against acts of unlawful interference.

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Math Physics Chemistry Biology QUESTION #7781

Question 9430

The plasma membrane is selectively permeable mainly due to the presence of:

Carbohydrates
Lipids
Proteins✔️
Vitamins

Correct Answer Logic:

Integral membrane proteins (e.g., channels, carriers, pumps) control selective transport. Lipids form the barrier but without proteins, permeability is limited to small nonpolar molecules.

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Quantitative Reasoning QUESTION #8132

Question 9431

In the context of the passage about scholarship on women in photography, the word inflation most nearly means:

exaggeration✔️
acquisition
evaluation
attenuation

Correct Answer Logic:

In the passage, inflation describes the posthumous upgrading of Alice Austen's role — transforming her from a hobbyist into a 'pioneering documentarian.' This is an exaggeration — her role has been blown up beyond its actual scope. 'Acquisition' means obtaining something. 'Evaluation' is neutral. 'Attenuation' means reducing/weakening — the opposite of what happened to Austen's reputation.

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General Knowledge QUESTION #8822

Question 9432

What kind of energy is stored in a dry cell battery?

Mechanical
Electrical
Chemical✔️
Solar

Correct Answer Logic:

Dry cells store chemical energy that converts to electrical energy.

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Nursing QUESTION #9245

Question 9433

A 60 kg female patient is in ICU on mechanical ventilation. Her static compliance is calculated as: plateau pressure \(= 28 \text{ cmH}_2\text{O}\), PEEP \(= 8 \text{ cmH}_2\text{O}\), tidal volume \(= 360 \text{ mL}\). What is the static compliance and is it normal?

\(C_{\text{stat}} = 18 \text{ mL/cmH}_2\text{O}\) — severely reduced, consistent with ARDS✔️
\(C_{\text{stat}} = 45 \text{ mL/cmH}_2\text{O}\) — normal compliance
\(C_{\text{stat}} = 25 \text{ mL/cmH}_2\text{O}\) — reduced but borderline
\(C_{\text{stat}} = 36 \text{ mL/cmH}_2\text{O}\) — mildly reduced

Correct Answer Logic:

Correct Answer: A — \(C_{\text{stat}} = 18 \text{ mL/cmH}_2\text{O}\), severely reduced

Formula for Static (Lung) Compliance:
\[C_{\text{stat}} = \frac{V_T}{P_{\text{plateau}} - \text{PEEP}}\]
\[C_{\text{stat}} = \frac{360}{28 - 8} = \frac{360}{20} = 18 \text{ mL/cmH}_2\text{O}\]

Normal static compliance: \(50 - 100 \text{ mL/cmH}_2\text{O}\)

Interpretation:

\(> 50\): Normal
\(30 - 50\): Mildly reduced
\(< 30\): Severely reduced — consistent with ARDS, pulmonary fibrosis, pulmonary edema

Compliance of \(18 \text{ mL/cmH}_2\text{O}\) indicates severely stiff lungs. The nurse should document this, inform the intensivist, and ensure lung-protective ventilation parameters are maintained.

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General Knowledge QUESTION #11535

Question 9434

A modern Personal Computer (PC) is fundamentally a:

Microprocessor-based computing device✔️
Mainframe computer
Workstation
Server

Correct Answer Logic:

A personal computer (PC) is a microprocessor-based computing device designed for use by a single individual. It uses a microprocessor (CPU on a single chip) as its processing unit. PCs include desktops, laptops, and tablets, distinguished from mainframes (multi-user) and servers (provide services to other computers).

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Planning QUESTION #5007

Question 9435

Which zoning technique allows density bonuses in exchange for public amenities?

Euclidean zoning
Performance zoning
Incentive zoning✔️
Floating zones

Correct Answer Logic:

Incentive zoning offers developers increased density, height, or FAR in exchange for providing public benefits (parks, affordable housing, transit improvements), balancing private development rights with public amenity provision—widely used in major cities like New York.

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General Knowledge QUESTION #7718

Question 9436

The Abbasid Governor _____ came to Sindh in 140 AH / 757 AD.

Hisham✔️
Walid
Musa
None of these

Correct Answer Logic:

Hisham ibn Amr al-Taghlibi was appointed as the Abbasid governor of Sindh around 140 AH (757 AD). The Abbasid period saw administrative changes in Sindh following the earlier Umayyad conquest of the region.

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Physics QUESTION #369

Question 9437

If the mass of the bob of a pendulum is doubled its time period is:

Halved
Doubled
Unchanged✔️
Increases four times

Correct Answer Logic:

Time period of a pendulum is independent of mass

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Planning QUESTION #4935

Question 9438

What is the concept of 'Carrying Capacity' in regional planning?

Maximum building height allowed
Maximum population a region can sustainably support✔️
Maximum traffic volume on roads
Maximum land area for development

Correct Answer Logic:

Carrying Capacity refers to the maximum population size or development intensity that a region's natural resources, infrastructure, and environment can sustainably support without degradation.

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