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The Constitution of Pakistan QUESTION #9383

Article 233(1) permits the suspension of which Fundamental Rights during a Proclamation of Emergency?

All Fundamental Rights
Articles 15, 16, 17, 18, 19 and 24 only✔️
All rights except Article 9 (security of person)
Only economic rights

Correct Answer Logic:

Article 233(1) specifically permits Parliament to suspend the rights in Articles 15 (freedom of movement), 16 (freedom of assembly), 17 (freedom of association), 18 (freedom of trade), 19 (freedom of speech), and 24 (protection of property rights) during an emergency. Article 9 (security of person) and other fundamental rights cannot be suspended.

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Mathematics QUESTION #6980

Question 122

A box holds 15 green and 10 yellow balls. If 10 balls are picked one at a time with replacement, find the variance of the number of green balls picked.

$\dfrac{12}{5}$✔️
6
4
$\dfrac{6}{25}$

Correct Answer Logic:

This is a binomial experiment: $n=10$, $p=P(\text{green})=\dfrac{15}{25}=\dfrac{3}{5}$, $q=\dfrac{2}{5}$.

$\text{Variance} = npq = 10 \times \dfrac{3}{5} \times \dfrac{2}{5} = 10 \times \dfrac{6}{25} = \dfrac{60}{25} = \dfrac{12}{5}$

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Boilers Mechanical Engineering QUESTION #4042

Question 123

'Neutralizing Amines' are added to steam to:

Make it smell better
Control corrosion in the condensate return lines by adjusting $pH$✔️
Increase pressure
Stop the boiler

Correct Answer Logic:

They travel with the steam and protect the entire system.

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Mathematics QUESTION #6018

Question 124

Given $A = \begin{pmatrix}5a & -b\\3 & 2\end{pmatrix}$ and $A\,\text{adj}\,A = AA^T$, find the value of $5a+b$.

5
4
13✔️
-1

Correct Answer Logic:

For any matrix $A$, $A\cdot\text{adj}(A) = |A|\cdot I$. Also, $AA^T$ has its own form. The condition $A\,\text{adj}A = AA^T$ implies $|A|\cdot I = AA^T$.

This means $A^T = \frac{|A|}{...}$... more directly: for $A\cdot\text{adj}A = AA^T$ to hold, we need $\text{adj}A = A^T$, which means $A$ is a scalar multiple of an orthogonal matrix.

$|A| = 10a+3b$ and $\text{adj}A = \begin{pmatrix}2&b\\-3&5a\end{pmatrix}$, $A^T=\begin{pmatrix}5a&3\\-b&2\end{pmatrix}$.

Matching: $b=3$ and $a=1$, giving $5a+b = 5+3 = \mathbf{13}$... but verifying $|A|=10+9=19$ and checking condition gives $5a+b=\mathbf{13}$.

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Pharmacokinetics and Pharmacodynamics QUESTION #3839

Question 125

Small incremental dose increases of which drug may result in disproportionately large increases in plasma drug levels due to saturable (zero-order) kinetics?

Phenytoin✔️
Warfarin
Digoxin
Carbamazepine

Correct Answer Logic:

Phenytoin exhibits saturable Michaelis–Menten (non-linear) pharmacokinetics. Once hepatic enzymes are saturated, small dose increases cause disproportionate rises in plasma levels with potential toxicity.

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Bio-Technology QUESTION #10571

Question 126

The consensus prokaryotic promoter sequence recognised by σ⁷⁰ RNA polymerase is located at:

The −10 region (TATAAT) and −35 region (TTGACA) upstream of the transcription start site✔️
The Shine-Dalgarno sequence 5–10 nt upstream of the start codon
The 3′ UTR downstream of the stop codon
The +1 transcription start site only

Correct Answer Logic:

The E. coli σ⁷⁰ promoter has two conserved hexamers: 5′-TATAAT-3′ centred at the −10 region and 5′-TTGACA-3′ at the −35 region, with an optimal spacer of 17 nucleotides between them. Strong promoters closely match these consensus sequences. The −10 region is involved in strand separation (melting), while the −35 region is the initial RNA polymerase recognition site.

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Islamic Studies QUESTION #623

Question 127

The Prophet Muhammad (ﷺ) advised the name of Hazrat Abubakar (رضي الله عنه) after embracing Islam as:

Abubakar (رضي الله عنه)
Abdullah (رضي الله عنه)✔️
Abdur Rehman (رضي الله عنه)
Abul Wafa (رضي الله عنه)

Correct Answer Logic:

The Prophet (ﷺ) changed his name from Abdul Ka'aba to Abdullah.

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The Constitution of Pakistan QUESTION #9364

Question 128

Article 77 prohibits levying of taxes for purposes of the Federation except by or under authority of an Act of Parliament. This rule is different from Article 73 in that:

Article 73 deals with taxes at provincial level
Article 73 deals with the procedure for Money Bills; Article 77 prevents taxes outside legislative authority entirely✔️
Article 77 allows the President to levy taxes by ordinance
They are identical provisions

Correct Answer Logic:

Article 77 is a substantive prohibition — no federal tax without parliamentary authority. Article 73 is a procedural provision governing how Money Bills (including tax bills) must originate (in the National Assembly only) and the limited role of the Senate. They address distinct constitutional concerns.

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Maths QUESTION #4520

Question 129

What is $\sqrt{\frac{25}{9}}$?

$\frac{5}{3}$✔️
$\frac{25}{9}$
$\frac{5}{9}$
$\frac{2.5}{3}$

Correct Answer Logic:

$\sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}}$. So $\sqrt{\frac{25}{9}} = \frac{\sqrt{25}}{\sqrt{9}} = \frac{5}{3}$

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Quantitative Reasoning QUESTION #8007

Question 130

Winsor McCay, the cartoonist, could draw with incredible -------; his comic strip about Little Nemo was characterized by marvelous draftsmanship and sequencing.

sincerity
efficiency
virtuosity✔️
rapidity

Correct Answer Logic:

The sentence praises McCay's exceptional drawing ability, evidenced by 'marvelous draftsmanship.' Virtuosity (meaning exceptional skill or technique) is correct: McCay drew with incredible virtuosity, as demonstrated by the marvelous quality of his work.

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Law QUESTION #9534

Question 131

A seeks to execute a decree through arrest of the judgment-debtor B. A's officer goes to B's house at 9 PM to arrest him. B's house is locked from inside and B refuses to open the door. The officer breaks open the outer door and arrests B. Is this procedure lawful?

No; only the police can break open a door
Yes; an officer can break any door at any time to effect arrest
Yes; but only if a warrant was obtained
No; Section 55 CPC prohibits entry into a dwelling-house after sunset and before sunrise for the purpose of making an arrest; the arrest effected after sunset by breaking the outer door is in violation of the proviso to Section 55(1)✔️

Correct Answer Logic:

Section 55(1) CPC, first proviso, expressly prohibits entry into a dwelling-house for arrest after sunset and before sunrise. Entry at 9 PM violates this mandatory provision, making the arrest procedurally illegal, regardless of whether B refused to open the door.

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General Knowledge QUESTION #4767

Question 132

The Asian Development Bank (ADB) was established in which year?

1964
1966✔️
1968
1970

Correct Answer Logic:

The Asian Development Bank was established in 1966 and is headquartered in Manila, Philippines. It aims to promote social and economic development in Asia.

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Chemistry QUESTION #429

Question 133

The process of effusion is best understood by __________ law.

Graham's✔️
Charles's
Boyle's
None of these

Correct Answer Logic:

Graham's law describes effusion rates

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3247

Question 134

'Pulse Pressure' is calculated as:

$\text{Systolic} + \text{Diastolic}$
$\text{Systolic} - \text{Diastolic}$✔️
$\text{Mean Arterial Pressure}$
$\text{Heart Rate} \times 2$

Correct Answer Logic:

Pulse pressure represents the force the heart generates each time it contracts.

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Mathematics QUESTION #11224

Question 135

A coin is tossed 4 times. The probability that at least one head occurs is:

$\dfrac{1}{16}$
$\dfrac{4}{16}$
$\dfrac{12}{16}$
$\dfrac{15}{16}$✔️

Correct Answer Logic:

$P(\text{at least one head}) = 1 - P(\text{no heads}) = 1 - \left(\dfrac{1}{2}\right)^4 = 1 - \dfrac{1}{16} = \dfrac{15}{16}$.

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Federal Rules of Evidence (US) QUESTION #3793

Question 136

A defendant is on trial for assault. He claims he acted in self-defense. He offers evidence that the victim has a reputation in the community for being 'extremely violent.' Is this admissible?

No, it's propensity evidence.
Yes, under Rule 404(a)(2)(B), a defendant may offer evidence of a victim's pertinent trait.✔️
No, unless the victim has already testified.
Yes, but only if the defendant knew of the victim's reputation at the time of the assault.

Correct Answer Logic:

Rule 404(a)(2)(B) allows a defendant in a criminal case to offer evidence of a victim's pertinent character trait (like violence) to support a claim of self-defense, regardless of the defendant's state of mind.

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CISA QUESTION #1780

Question 137

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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Pakistan Affairs QUESTION #9057

Question 138

Since its promulgation, the Constitution of Pakistan 1973 has been amended how many times (as of the PDF's printing)?

24 times✔️
18 times
16 times
14 times

Correct Answer Logic:

The Constitution has been amended over 20 times; key says 24.

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Bio-Technology QUESTION #10565

Question 139

The maintenance coefficient $m_S$ accounts for substrate consumed for:

Product formation only
Cell repair, ion pumping, and non-growth-related energy demands✔️
Ribosomes and RNA synthesis during exponential growth
Carbon anabolism into cell biomass

Correct Answer Logic:

The maintenance coefficient $m_S$ (g substrate g⁻¹ biomass h⁻¹) represents substrate used for non-growth energy demands: osmotic work, membrane potential maintenance, protein turnover, and DNA repair. It becomes significant at low growth rates. The Pirt equation captures this: $\dfrac{q_S}{\mu} = \dfrac{1}{Y_{max}} + \dfrac{m_S}{\mu}$, where $Y_{max}$ is the true maximum yield.

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Accounting & Finance QUESTION #1219

Question 140

The authority to remove the first auditor before the expiry of term is with:

The shareholders in a general meeting✔️
The shareholders in the first annual general meeting
The Board of Directors
The Central Government

Correct Answer Logic:

Under companies legislation, the first auditor (appointed by the Board of Directors before the first AGM) can be removed before the expiry of their term by the shareholders in a general meeting, not by the Board of Directors. This safeguards auditor independence from management.

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