PPSC Punjab Enforcement and Regulatory Authority (PERA) Enforcement/Investigation Officer Past Paper 2025 Solved MCQs

Correct Answer: Understanding and generating human-like text

Natural Language Processing (NLP) is a branch of AI that enables computers to understand, interpret, and generate human language.

Correct Answer: All of these

Meta AI technologies are used in business to automate operations, provide data-driven insights, and personalize user experiences.

Correct Answer: Transformer Architecture

ChatGPT is based on the Transformer architecture, which uses self-attention mechanisms to process sequence data efficiently.

Correct Answer: All of these

Deep learning is a subset of machine learning capable of processing complex data for image, language, and speech recognition tasks.

Correct Answer: To apply for building permits and track project approvals

The E-Construction Services Portal digitizes the process of submitting, reviewing, and approving construction permits.

Correct Answer: To perform a logical test and return a value based on the result

The IF function checks a condition and returns one value if TRUE and another if FALSE.

Correct Answer: 1

In modern versions of Microsoft Excel (2013 and later), a new workbook defaults to 1 worksheet.

Correct Answer: Design tab

The Design tab in Microsoft PowerPoint contains options for applying visual themes and color schemes to presentations.

Correct Answer: Insert

The Insert tab contains the option to add Header and Footer elements to a document.

Correct Answer: Review

The Review tab provides tools for tracking changes and adding comments to a document.

Correct Answer: Etymology

Etymology is the branch of linguistics concerned with the historical origin and evolution of words.

Correct Answer: Elias Howe

While several inventors contributed, Elias Howe is credited with patenting the first lockstitch sewing machine in 1846.

Correct Answer: Nowruz

Nowruz marks the beginning of the Persian New Year, coinciding with the vernal equinox.

Correct Answer: CODA

The film 'CODA' won the Academy Award for Best Picture at the 94th Oscars ceremony held in 2022.

Correct Answer: 8 billion

The global population reached the 8 billion milestone in late 2022 and remains around that figure as of 2025.

Correct Answer: Easy Paisa

EasyPaisa is widely recognized as one of the primary mobile wallet services used for financial transactions and money transfers in Pakistan.

Correct Answer: Pakistan Railways Official

The 'Pakistan Railways Official' app is the authorized platform provided by the government for booking railway tickets.

Correct Answer: To deliver government services at citizens' doorsteps

The 'Maryam Ki Dastak' initiative is designed to provide various government-to-citizen services directly at their doorsteps.

Correct Answer: e-Khidmat

The e-Khidmat Markaz portal provides a centralized platform for Punjab citizens to apply for various certificates, including domiciles.

Correct Answer: Paying government taxes and fees

e-Pay Punjab is the government's official application designed to facilitate the collection of provincial taxes and non-tax revenues.

Correct Answer: Western Union

Western Union is one of the most established and widely used services for receiving international remittances in Pakistan.

Correct Answer: Black judge on the U.S. Supreme Court

Ketanji Brown Jackson made history as the first Black woman to serve as a Justice on the United States Supreme Court.

Correct Answer: China

China is currently the largest supplier of defense equipment and arms to Pakistan.

Correct Answer: Pennsylvania

The assassination attempt on Donald Trump occurred during a rally in Butler, Pennsylvania, in July 2024.

Correct Answer: Acid rain caused by air pollution

Sulfur dioxide and nitrogen oxides in the air react with moisture to form acid rain, which corrodes the marble, a process known as stone cancer.

Correct Answer: All of these

Global warming causes thermal expansion of oceans, melting ice caps, and increased frequency of extreme weather.

Correct Answer: Urbanization and agriculture

The conversion of forests into land for farming, livestock, and urban development is the leading driver of global deforestation.

Correct Answer: 31 pairs

There are 31 pairs of spinal nerves in the human body, arising from the spinal cord.

Correct Answer: Sir Ronald Ross

Sir Ronald Ross was awarded the Nobel Prize for his discovery of the transmission of malaria by mosquitoes.

Correct Answer: Ribosome

Ribosomes are the cellular structures responsible for protein synthesis.

Correct Answer: 1 mm/sec

Blood flows very slowly through capillaries, approximately 1 mm/sec, to facilitate nutrient and gas exchange.

Correct Answer: Anopheles

The female Anopheles mosquito acts as the vector that transmits the Plasmodium parasite, which causes malaria in humans.

Correct Answer: Pancreas

The pancreas secretes digestive enzymes into the small intestine to break down macromolecules and also releases bicarbonate to neutralize stomach acid.

Correct Answer: Agronomy

Agronomy is the science of soil management and crop production.

Correct Answer: Water

Water serves as the universal solvent and is the primary ingredient in soft drinks.

Correct Answer: Stock value

Acceleration, inertia, and motion are fundamental concepts in physics, whereas 'stock value' relates to finance.

Correct Answer: Displacement

Displacement is a vector quantity defined as the shortest straight-line distance between two points.

Correct Answer: Rohtas Fort

Rohtas Fort, built by Sher Shah Suri, is a recognized UNESCO World Heritage Site in Pakistan.

Correct Answer: Faiz Ahmad Faiz

Renowned progressive poet Faiz Ahmad Faiz was nominated for the Nobel Prize in Literature.

Correct Answer: Faisalabad

The Allama Iqbal Industrial City in Faisalabad is a major SEZ developed under the CPEC framework.

Correct Answer: Lahore

As the capital and major economic hub of the province, Lahore contributes the largest share to Punjab's GDP.

Correct Answer: 1948

A trade/economic dispute occurred between India and Pakistan in 1948 following the devaluation of the Indian Rupee and Pakistan's decision not to follow suit.

Correct Answer: Liaqat-Nehru Pact

The Liaqat-Nehru Pact of 1950 was signed to address the protection of minorities and the issue of refugees following the Partition.

Correct Answer: Iftikhar Hussain Khan Mamdot

Iftikhar Hussain Khan Mamdot served as the first Chief Minister of Punjab after the creation of Pakistan.

Correct Answer: 13

Thirteen princely states acceded to Pakistan upon the partition of the subcontinent in 1947.

Correct Answer: Iskandar Mirza

Iskandar Mirza served as the first President of Pakistan following the adoption of the 1956 Constitution.

Correct Answer: 336

Following the abolition of FATA seats, the total membership of the National Assembly is 336.

Correct Answer: Control over trade routes

The annexation of Punjab by the British was driven by strategic interest in securing trade routes and expanding their control in the subcontinent.

Correct Answer: Suppression of local crafts and traditions

Colonial industrial policies favored British goods, which often led to the decline of indigenous crafts and traditional industries in the region.

Correct Answer: Justice Tahira Safdar

Justice Tahira Safdar holds the distinction of being the first female Chief Justice of any High Court in Pakistan (Balochistan High Court).

Correct Answer: Chief Secretary

The Chief Secretary is the highest-ranking career civil servant and the administrative head of a province in Pakistan.

Correct Answer: Aurangzeb

The Badshahi Mosque in Lahore was commissioned by the Mughal Emperor Aurangzeb in the 17th century.

Correct Answer: Article 10-A

Article 10-A of the Constitution of Pakistan mandates the right to a fair trial and due process.

Correct Answer: 15 years

Under the Constitution of Pakistan, a person must have been an advocate of a High Court for 15 years to qualify for appointment as a Supreme Court judge.

Correct Answer: Article 10

Article 10 of the Constitution provides fundamental rights to persons who are arrested or detained.

Correct Answer: Federal Government, Provincial Government, and Local Authorities

Article 7 defines 'the State' as the Federal Government, Parliament, a Provincial Government, a Provincial Assembly, and such local or other authorities as are empowered by law to impose any tax.

Correct Answer: A summary of the investigation, key actions taken, and progress made

A Case Diary is a formal document where an Investigating Officer records the details of the investigation on a day-to-day basis.

Correct Answer: Section 106

Section 106 of the CrPC empowers courts to demand security for keeping the peace upon conviction of certain offenses.

Correct Answer: Section 154

Section 154 of the Code of Criminal Procedure, 1898, mandates the recording of the First Information Report (FIR).

Correct Answer: Imprisonment for up to two years or a fine up to two hundred thousand rupees, or both

Legal provisions exist to penalize individuals who intentionally submit false information under whistleblower protection laws.

Correct Answer: Power to conduct inspections, searches, seizures, and arrests

The PERA Act grants the authority powers to enforce regulations, including conducting inspections and carrying out seizures and arrests.

Correct Answer: 1962

Rawal Dam, located on the Korang River near Islamabad, was completed in 1962.

Correct Answer: Indus Basin

The Indus Basin is the most fertile region of Pakistan, largely due to the extensive irrigation network fed by the Indus River system.

Correct Answer: Cholistan Desert

Derawar Fort is a large square fortress located in the Cholistan Desert of the Punjab province.

Correct Answer: China

Khunjerab Pass is a high-mountain pass in the Karakoram Mountains that serves as the border crossing between Pakistan and China.

Correct Answer: Western Disturbances

Western Disturbances are extratropical storms that bring winter precipitation to the northern parts of Pakistan, including Punjab.

Correct Answer: 2400

Non-working keyboards = 3000 * (1/5) = 600. Working keyboards = 3000 - 600 = 2400.

Correct Answer: $60

Simple Interest = (P * R * T) / 100 = (1000 * 2 * 3) / 100 = 6000 / 100 = 60.

Correct Answer: (x+4)/x

By simplifying each term (x+1)/x * (x+2)/(x+1) * (x+3)/(x+2) * (x+4)/(x+3), all intermediate terms cancel out, leaving (x+4)/x.

Correct Answer: 45

y = kx². Given 20 = k(2²), k = 5. Therefore, when x = 3, y = 5 * (3²) = 45.

Correct Answer: a² + b²

Squaring and adding both equations results in p² + q² = (a² cos² θ + b² sin² θ + 2ab sin θ cos θ) + (a² sin² θ + b² cos² θ - 2ab sin θ cos θ) = a²(cos² θ + sin² θ) + b²(sin² θ + cos² θ) = a² + b².

Correct Answer: 20m

Using tan(45°) = height / distance, since tan(45°) = 1, then height = 1 * 20 = 20 m.

Correct Answer: 5:1

Convert 2 km to 2000 m. The ratio 2000:400 simplifies to 5:1 by dividing both by 400.

Correct Answer: 2

Original total age 3 years ago = 5*17 = 85. Current age of original members = 85 + (3*5) = 100. New total age for 6 members = 6*17 = 102. Baby's age = 102 - 100 = 2.

Correct Answer: 25 sq. units

Area of a square = side² = 5² = 25.

Correct Answer: 3

The distance of any point (x, y) from the x-axis is given by the absolute value of the y-coordinate.

Correct Answer: of

The adjective 'confident' is followed by the preposition 'of'.

Correct Answer: on

The verb 'depend' is most commonly followed by the preposition 'on' in modern English.

Correct Answer: Scornful

Scathing means witheringly scornful or severely critical.

Correct Answer: Pillion

A pillion is a seat for a passenger behind the driver on a motorcycle.

Correct Answer: Nadir

Zenith refers to the highest point, while Nadir is the lowest point.

Correct Answer: Give

Robbing is taking something by force or theft; 'Give' acts as the antonym in this context.

Correct Answer: Indecent

Vulgar refers to something lacking sophistication or good taste; indecent is a synonym.

Correct Answer: Homespun

Sartorial relates to tailoring or elegant clothes, while homespun refers to simple or plain attire.

Correct Answer: Innovative

Groundbreaking refers to innovative or pioneering work.

Correct Answer: Discord

Concord means harmony or agreement, making discord its antonym.

Correct Answer: Illiterate

An illiterate person is someone who cannot read or write.

Correct Answer: Unpunished

To get off scot-free means to escape without punishment.

Correct Answer: To argue or exchange words heatedly

To bandy words means to engage in a heated argument or exchange of sharp words.

Correct Answer: To be extremely happy

Being on cloud nine is a common idiom meaning to be in a state of great happiness or elation.

Correct Answer: Let us sit down in the shade of a tree for some time.

It is grammatically correct to say someone is sitting 'in the shade' of a tree.

Correct Answer: tries

In the phrase 'one of those people who...', the verb must agree with the plural antecedent 'people', so 'tries' is incorrect if used alone; however, given the options and common usage, 'tries' follows the singular subject of the relative clause construction typically used here.

Correct Answer: cleverer

The comparative degree of 'clever' is 'cleverer' when comparing two subjects.