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Boilers Mechanical Engineering QUESTION #2537

For a system in static equilibrium in 3D, the necessary and sufficient conditions are:

Three force equations $\sum F=0$ only
One force and one moment equation
All six scalar equations: $\sum F_x=\sum F_y=\sum F_z=0$ and $\sum M_x=\sum M_y=\sum M_z=0$✔️
Two force equations and one moment equation

Correct Answer Logic:

For complete 3D static equilibrium, both translational ($\sum\mathbf{F}=0$) and rotational ($\sum\mathbf{M}=0$) equilibrium must be satisfied about every axis, yielding six independent scalar equations.

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Security Measures to Maintain Law and Order QUESTION #850

Question 9782

Under the "Form of Affirmation," an ASF officer swears to serve with "honesty and faithfulness." Violation of this for personal gain constitutes:

Administrative error
Breach of Oath✔️
Minor misconduct
Professional oversight

Correct Answer Logic:

The First Schedule (Oath) is a legal commitment; violating it via corruption or dishonesty is a fundamental breach of service law.

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Biology QUESTION #7245

Question 9783

Myxomycetes are:

Saprobes or parasites, having mycelia, asexual reproduction by fragmentation, sexual reproduction by fusion of gametes
Slimy mass of multinucleate protoplasm, having pseudopodia-like structures for engulfing food, reproduction through fragmentation or zoospores✔️
Prokaryotic organisms, cellular or acellular, saprobes or autotrophic, reproduce by binary fission
Eukaryotic, single-celled or filamentous, saprobes or autotrophic, asexual reproduction by division of haploid individuals, sexual reproduction by fusion of two cells or their nuclei

Correct Answer Logic:

Myxomycetes (slime moulds) exist as a slimy, multinucleate plasmodium that moves like an amoeba using pseudopodia-like extensions to engulf food particles. They reproduce asexually by fragmentation or zoospores. They are acellular and belong to kingdom Protista.

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Chemistry QUESTION #7822

Question 9784

Which molecule has zero dipole moment?

BF₃✔️
NF₃
NH₃
H₂O

Correct Answer Logic:

BF₃ is trigonal planar with symmetric bond dipoles canceling (net μ=0). NF₃, NH₃, H₂O are polar.

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English QUESTION #7544

Question 9785

Choose the correct meaning of the word pair "Principal and Principle"

Principal = rule; Principle = head of school.
Principal = head of school; Principle = moral rule.✔️
Both mean the same.
Principal = student; Principle = money.

Correct Answer Logic:

Principal refers to the head of a school or a sum of money; "Principle" means a fundamental truth or moral rule.

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Electrical Engineering QUESTION #2144

Question 9786

What is the primary function of a Buchholz Relay in a transformer?

Protection against external short circuits
Protection against internal gas-producing faults✔️
Regulation of secondary voltage
Measurement of core temperature

Correct Answer Logic:

A Buchholz relay is a gas-actuated safety device installed to detect internal faults like insulation breakdown or overheating that produce gas within the oil.

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Paper-I (Pharmaceutics II (Industrial and Quality Control) and Pharmaceutics III (Hospital and Community Pharmacy)) QUESTION #5744

Question 9787

A 'Nuclear Pharmacy' is a specialized branch that focuses on:

Veterinary medicines
Radioactive materials for diagnostic tests✔️
Herbal remedies
Generic skin creams

Correct Answer Logic:

Nuclear pharmacy involves handling radioactive materials.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3222

Question 9788

The 'Organ of Corti' is the actual organ of hearing located inside the:

Semicircular canals
Utricle
Cochlea✔️
Middle ear

Correct Answer Logic:

Hair cells in the cochlea convert mechanical sound waves into electrical impulses.

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Planning QUESTION #4995

Question 9789

Which Act is considered foundational for modern UK planning legislation?

Town and Country Planning Act 1947✔️
Housing Act 1930
Public Health Act 1875
Building Act 1909

Correct Answer Logic:

The Town and Country Planning Act 1947 revolutionized UK planning by nationalizing development rights, introducing development control requiring planning permission, creating comprehensive development plans, and establishing the framework for modern statutory planning systems.

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Pakistan Affairs QUESTION #9093

Question 9790

Islamabad was declared the capital of Pakistan in which year?

1956
1957✔️
1959
1960

Correct Answer Logic:

Islamabad became the capital in 1960 (construction began).

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Education QUESTION #6911

Question 9791

A student who is aggressive frequently misinterprets neutral social cues as hostile — for example, reading an accidental shoulder bump as an intentional act of aggression. This pattern reflects which documented characteristic of aggressive students?

A performance deficit in social skills due to lack of practice
Deficits in social information processing, leading to systematic misattribution of hostile intent✔️
A conduct disorder that can only be addressed through psychiatric intervention
Deliberate manipulation of social situations for personal gain

Correct Answer Logic:

Research on aggression in school contexts consistently identifies social information processing deficits as a core characteristic of chronically aggressive students. These students are more likely to misread neutral or ambiguous social cues as threatening, especially under stress, which triggers aggressive responses that peers and teachers experience as disproportionate or unprovoked.

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Maths QUESTION #4611

Question 9792

What is $(3x)(4x)$?

$7x$
$12x$
$12x^2$✔️
$7x^2$

Correct Answer Logic:

Multiply coefficients and variables: $(3x)(4x) = 12x^2$

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Islamic Studies QUESTION #8250

Question 9793

Which Sahabi was the first hafiz of the Holy Quran?

Hazrat Abu Bakr (R.A.)
Hazrat Umar (R.A.)
Hazrat Usman (R.A.)
Hazrat Ali (R.A.)✔️

Correct Answer Logic:

Hazrat Ali ibn Abi Talib (RA) is traditionally considered among the first huffaz of the Quran, though several companions memorized it during the Prophet's lifetime. Hazrat Usman (RA) also had the complete Quran memorized and later supervised its official compilation. Other early huffaz included Ubayy ibn Ka'ab, Abdullah ibn Mas'ud, Zaid ibn Thabit, and Abu Darda (RA). The Prophet (PBUH) himself was the first to have the complete revelation memorized.

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