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Boilers Mechanical Engineering QUESTION #3993

Question 1941

According to the Ordinance, a 'Boiler' is defined as a closed vessel exceeding a capacity of:

$10~liters$
$22.7~liters$ (or $5~gallons$)✔️
$100~liters$
$500~liters$

Correct Answer Logic:

Smaller vessels are typically excluded from the stringent inspection requirements of the Boiler Ordinance.

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Statistics QUESTION #1957

Question 1942

The sum of absolute deviations $\sum |X - A|$ is minimized when deviations are taken from which measure?

Arithmetic Mean
Median✔️
Mode
Geometric Mean

Correct Answer Logic:

The sum of absolute deviations $\sum |X - A|$ is least (minimum) when deviations are measured from the Median. This is a fundamental property of the median.

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CISA QUESTION #1780

Question 1943

Audits are expected to be carried out in accordance with which of the following principles?

Specific directives from management regarding evidence and procedures
Reporting and communication requirements
Assessment of organizational controls
Adherence to established standards, guidelines, and best practices✔️

Correct Answer Logic:

Audits must follow published standards, professional guidelines, and accepted best practices. Management directives that restrict evidence use or procedure represent scope limitations — not proper audit conduct. Options B and C are components of the broader answer D.

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General Science and Ability QUESTION #250

Question 1944

One degree of longitude on the equator is equal to a distance of:

49 miles
69 miles✔️
39 miles
60 miles

Correct Answer Logic:

At the equator, one degree of longitude is approximately 69.17 miles.+2

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Paper-II (Pharmacognosy and Pharmaceutics-I) QUESTION #2964

Question 1945

Which of the following is a 'Water-in-Oil' (W/O) emulsifying agent?

Sodium Lauryl Sulfate
Wool Fat✔️
Acacia
Tragacanth

Correct Answer Logic:

Wool fat (Lanolin) is a common W/O emulsifying agent, whereas Acacia is an O/W agent.

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General Knowledge QUESTION #2586

Question 1946

Which of the following correctly describes 'Abstraction' in everyday computing?

Converting all data into binary format before storage
Simplifying a complex system so users can interact with it easily without needing to understand its inner workings✔️
Encoding characters into numeric values for display on screen
Hiding files in a password-protected folder

Correct Answer Logic:

Abstraction means taking a relatively complex system and simplifying it for our use. When you click a button on a website without knowing the underlying server code, you are using abstraction — the complexity is hidden from you.

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General Knowledge QUESTION #4482

Question 1947

Who authored the seminal book “World Order”?

Fareed Zakaria
Henry Kissinger✔️
Andrew Heywood
None of these

Correct Answer Logic:

Henry Kissinger authored 'World Order'.

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Pakistan Affairs QUESTION #4661

Question 1948

The project to address waterlogging and salinity in Pakistan received financial support from which organization?

World Bank
IMF
Asian Development Bank✔️
USAID

Correct Answer Logic:

The Asian Development Bank (ADB) has funded numerous projects in Pakistan to address waterlogging and salinity, which are major agricultural challenges.

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Boilers Mechanical Engineering QUESTION #4047

Question 1949

'Exfiltration' in a boiler furnace refers to:

Air leaking in
Flue gases leaking out of the setting✔️
Fuel leaking into the water
Water leaking into the fuel

Correct Answer Logic:

Usually happens in positive-pressure furnaces if the casing is not tight.

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Biology QUESTION #576

Question 1950

The optimum temperature for enzymes of human body is

32°F
46°C
313 K
37°C✔️

Correct Answer Logic:

Human enzymes work best at 37°C

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Reading and Writing (Module-1) QUESTION #5367

Question 1951

On March 23, 2021, a gust of wind wreaked havoc on global trade. Ever Given, an international shipping container vessel, became lodged in Egypt’s Suez Canal, a major shipping route between Europe and Asia. The vessel took six days to ______ it’s as heavy as two thousand blue whales when fully loaded. Which choice completes the text so that it conforms to the conventions of Standard English?

dislodge in part due to its sheer size,
dislodge, in part due to its sheer size:✔️
dislodge, in part due to its sheer size,
dislodge, in part, due to its sheer size

Correct Answer Logic:

The colon correctly introduces the explanation (the ship's weight) for why it was hard to dislodge.

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Library Sciences QUESTION #1523

Question 1952

A 'current awareness service' using serials guides is designed primarily to:

Archive old periodical issues
Keep users informed about new publications and developments in their field of interest✔️
Convert print serials to digital format
Provide interlibrary loan services

Correct Answer Logic:

A current awareness service uses serials guides and periodical indexes to systematically notify users — especially researchers and professionals — about new articles, issues, or publications relevant to their specific subject interests as they are published.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3149

Question 1953

The 'Sclera' is the:

Colored part of the eye
White, outer layer of the eye✔️
Clear window of the eye
Back of the eye

Correct Answer Logic:

The sclera provides structure and protection.

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Basic Mathematics QUESTION #4490

Question 1954

What is the product of $-8$ and $-5$?

$-40$
$40$✔️
$-13$
$13$

Correct Answer Logic:

When two negative numbers are multiplied, the result is positive. $(-8) \times (-5) = 40$

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Biology QUESTION #4320

Question 1955

Which one of the following biomolecules is a polymer (polysaccharide)?

Sucrose
Pentose
Lactose
Glycogen✔️

Correct Answer Logic:

Glycogen is a polysaccharide (polymer of glucose) that serves as the main carbohydrate storage in animals. Sucrose and lactose are disaccharides; pentose is a monosaccharide.

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English QUESTION #2736

Question 1956

Convert to PASSIVE VOICE: 'Will they announce the result?'

Will the result be announced by them?✔️
Will the result announced by them?
The result will be announced.
Was the result announced by them?

Correct Answer Logic:

In passive voice for future simple questions: Will + object + be + past participle + by + agent. 'Will the result be announced by them?' is correct.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3164

Question 1957

'Cyanosis' (bluish tint to skin) is an indication of:

High iron levels
Low oxygen in the blood✔️
Fever
Allergic reaction

Correct Answer Logic:

Deoxygenated hemoglobin has a darker, bluish hue.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3417

Question 1958

'Galactosemia' is an inherited disorder involving the inability to metabolize:

Glucose
Fructose
Galactose✔️
Sucrose

Correct Answer Logic:

It can cause liver damage and cataracts if not managed with a galactose-free diet.

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Math Physics Chemistry Biology QUESTION #797

Question 1959

Which of the following is the formula of methylene chloride?

$\text{CH}_2\text{Cl}_2$✔️
$\text{CHCl}_3$
$\text{CH}_3\text{Cl}$
$\text{CCl}_4$

Correct Answer Logic:

Methylene chloride (dichloromethane) has the formula $\text{CH}_2\text{Cl}_2$. $\text{CHCl}_3$ is chloroform and $\text{CCl}_4$ is carbon tetrachloride.

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Physics and Math QUESTION #742

Question 1960

If the distance is doubled between two charges then Coulomb's force becomes:

Doubled
Half
Reduced 4 times✔️
Remains same

Correct Answer Logic:

By Coulomb's law F = kq1q2/r². If r is doubled F = kq1q2/(2r)² = F/4. Force reduces to one-fourth.

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