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English QUESTION #2644

Question 1

Which word is a preposition in this sentence: 'The cat jumped over the fence.'

Cat
Jumped
Over✔️
Fence

Correct Answer Logic:

'Over' is a preposition showing the spatial relationship between the cat and the fence.

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Chemistry QUESTION #7174

Question 2

In the context of the Bohr model of the atom, which of the following statements is true regarding the angular momentum of an electron in a hydrogen-like atom?

It is proportional to $\sqrt{n}$
It is an integral multiple of $\frac{h}{2\pi}$✔️
It is independent of the orbit number
It is proportional to $n^{2}$

Correct Answer Logic:

Bohr's second postulate states that the angular momentum ($L$) of an electron orbiting the nucleus is quantized and can only take values that are integral multiples of $\frac{h}{2\pi}$. Mathematically: $mvr = \frac{nh}{2\pi}$, where $n = 1, 2, 3...$

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Math Physics Chemistry Biology QUESTION #11417

Question 3

First law of thermodynamics is based on:

Law of conservation of momentum
Law of conservation of mass
Law of conservation of energy✔️
Law of conservation of charge

Correct Answer Logic:

The First Law of Thermodynamics is based on the law of conservation of energy: energy can neither be created nor destroyed, only converted from one form to another. It states that the change in internal energy of a system equals the heat added to the system minus the work done by the system: $\Delta U = Q - W$.

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Psychology QUESTION #9750

Question 4

The portion of the nervous system that regulates breathing and digestion is the:

Axon
Autonomic✔️
Linear circuit
None of these

Correct Answer Logic:

The autonomic nervous system (ANS) controls involuntary functions such as breathing, heart rate, and digestion. It has two divisions: sympathetic (fight-or-flight) and parasympathetic (rest-and-digest). It operates largely below conscious awareness.

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Psychology QUESTION #1460

Question 5

Which type of memory has the longest duration and largest capacity, often storing information for a lifetime?

Sensory memory
Short-term memory
Long-term memory✔️
Working memory

Correct Answer Logic:

Long-term memory (LTM) has virtually unlimited capacity and can store information for a lifetime. It includes declarative memory (explicit: episodic and semantic) and non-declarative memory (implicit: procedural, priming). Sensory memory lasts milliseconds; short-term memory holds about 7±2 items for 15–30 seconds; working memory is the active, limited-capacity system for immediate cognitive tasks.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3383

Question 6

'Atherosclerosis' is primarily associated with high levels of which lipoprotein?

HDL
LDL✔️
Chylomicrons
VLDL

Correct Answer Logic:

LDL is often called 'bad cholesterol' because it deposits fat in arterial walls.

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General Ability and Fire Fighting QUESTION #5614

Question 7

What happens to a fire if the oxygen concentration drops below 16%?

It burns more intensely
It switches to a chemical chain reaction only
It is generally unable to sustain a flame✔️
It converts to a Class C fire

Correct Answer Logic:

Below approximately 16% oxygen concentration

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English QUESTION #8332

Question 8

He is interested _______ stamp collection.

at
in✔️
of
with

Correct Answer Logic:

'Interested in' is the correct preposition.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3470

Question 9

The enzyme that 'Unwinds' the DNA double helix during replication is:

Polymerase
Ligase
Helicase✔️
Protease

Correct Answer Logic:

Helicase 'unzips' the genes.

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CISA QUESTION #1734

Question 10

In professional practice, what does the concept of fiduciary responsibility fundamentally require of accountants, auditors, and legal professionals?

To utilise information obtained in engagements for personal advantage without breaching explicit confidentiality agreements.
To act in the best interests of the client, placing honesty, fairness, and duty ahead of personal self-interest — except where doing so would breach the law.✔️
To execute the client's wishes unconditionally and maintain total confidentiality, even in cases where illegal activity has been discovered.
None of the above.

Correct Answer Logic:

Fiduciary responsibility is the highest legal standard of care that professionals owe to those who place trust in them. It requires accountants, auditors, and lawyers to act in their client's best interests with complete honesty and fairness — but this duty is always subordinate to the law. Where compliance with a client's wishes would require violating the law, the fiduciary duty yields. It is fundamentally about acting as a trustworthy guardian of another's interests.

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Paper-I (Anatomy/Physiology and Biochemistry/Microbiology) QUESTION #3270

Question 11

'Vasoconstriction' results in:

Decreased blood pressure
Increased peripheral resistance and blood pressure✔️
Increased blood flow to the skin
Cooling of the body

Correct Answer Logic:

Narrowing the vessels increases the pressure of the fluid inside.

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Information Technology QUESTION #1122

Question 12

Which asymptotic notation gives the strict upper bound for a function?

Omega notation
Big O notation✔️
Theta notation
None of these

Correct Answer Logic:

Big O notation (O) describes an asymptotic upper bound, representing the worst-case scenario for the growth of a function.

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Mathematics QUESTION #974

Question 13

Suppose that the number of terms in an A.P. is $2k,\ k\in\mathbb{N}$. If the sum of all odd terms of the A.P. is 40, the sum of all even terms is 55, and the last term exceeds the first term by 27, then $k$ is equal to:

6
5✔️
8
4

Correct Answer Logic:

Let first term $=a$, common difference $=d$, number of terms $=2k$. Sum of odd-positioned terms $=k\left(a+\frac{(2k-1)d}{2}\cdot\text{...}\right)=40$, even terms $=55$. Difference: $kd=15$. Last $-$ first $=(2k-1)d=27$. From $kd=15$ and $(2k-1)d=27$: dividing gives $2k-1=\frac{27k}{15} \Rightarrow k=5$.

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Ability / HR / Governance / Special Education QUESTION #1864

Question 14

Under Rule 12, what type of experience is prescribed for initial appointment unless otherwise specified?

Pre-qualification experience
Total work experience
Post-qualification experience✔️
Government service experience only

Correct Answer Logic:

The proviso to Rule 12 states that unless otherwise specified, the experience prescribed for initial appointment shall be the post-qualification experience.

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Mathematics QUESTION #6029

Question 15

Let $f:\mathbb{R}\to\mathbb{R}$ be defined as $f(x)=\begin{cases}5,&x\le1\\a+bx,&1

$a=5,\,b=5$
$a=-5,\,b=10$✔️
$a=0,\,b=5$
Not continuous for any $a,b$

Correct Answer Logic:

Continuity at $x=1$: $\lim_{x\to1^+}(a+bx)=a+b=5$ ...(i)

Continuity at $x=3$: $a+3b=b+15 \Rightarrow a+2b=15$ ...(ii)

Continuity at $x=5$: $b+25=30\Rightarrow b=5$ ...(iii)

From (iii): $b=5$. From (i): $a=5-5=0$... but check (ii): $0+10=10\neq15$. Contradiction!

Try option B: $a=-5, b=10$. Check (i): $-5+10=5$ ✓. Check (ii): $-5+20=15$ ✓. Check (iii): $10+25=35\neq30$ ✗.

No values make $f$ continuous, so the answer is not continuous for any $a, b$ (option D, index 3).

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Math Physics Chemistry Biology QUESTION #798

Question 16

Which of the following has a net dipole moment?

$\text{CO}$
$\text{NH}_3$
$\text{H}_2\text{O}$
All of these✔️

Correct Answer Logic:

CO has a small dipole moment. $\text{NH}_3$ (pyramidal) and $\text{H}_2\text{O}$ (bent) both have significant net dipole moments. All three have net dipole moments.

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English QUESTION #8542

Question 17

There has been a complete break _______ of law and order in the country.

up
off
down✔️
of

Correct Answer Logic:

'Breakdown' means collapse or failure.

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Law QUESTION #9476

Question 18

Two suits are pending simultaneously: Suit I filed by A against B in Civil Court Lahore for breach of a contract to sell land, and Suit II filed by B against A in Civil Court Karachi for specific performance of the same contract. Both suits involve the same parties and the same contract. Karachi Court is asked to stay Suit II. What should the Karachi Court do?

Dismiss Suit II outright since only one suit is permissible
Stay Suit II since the matter in issue is directly and substantially in issue in a previously instituted suit between the same parties, and Lahore Court has jurisdiction to grant the relief claimed✔️
Refuse to stay Suit II since it was filed in a different city by a different plaintiff
Transfer both suits to a neutral Court

Correct Answer Logic:

Section 10 CPC mandates that no Court shall proceed with trial of any suit where the matter in issue is also directly and substantially in issue in a previously instituted suit between the same parties pending in any other Court in Pakistan having jurisdiction. Suit I was instituted first; Suit II must be stayed.

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