CSS · Federal Public Service Commission · 2026
Solved CSS MPT Everyday Science practice set from the 1000 Advanced Booklet, Q51–100 — 50 MCQs with verified answers and explanations (coal, oil, OPEC, LPG, LNG, CNG, nuclear, solar, wind, refinery products). A practice compilation, not a past paper.
Paper Snapshot
Questions
50
Time
50
Minutes
Subjects
1
Topics
5
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
Part 2 (Q51–100) of the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation (monster-data 'CSS MPT PAST PAPERS' pack). The booklet prints statement + answer only, so each item is published in the standard MCQ format with 3 authored plausible distractors under Anas's 2026-10-28 single-format decision and optionsSource recorded as 'authored'. All 50 printed items are published with no drops and no corrections. Five items carry NOTE flags rather than corrections: Q61 (LPG also comes from crude-oil refining, about 40% of supply, alongside natural-gas processing); Q68 (the “King of Fossil Fuels” epithet is also applied to coal as “King Coal”, but the booklet’s oil answer follows the textbook one-liner usage); Q70 (Karachi hosted the region’s earliest power plant, KESC 1914, while large-scale post-independence thermal development came later at Guddu, Kotri and Quetta); Q86 (aviation fuel is a refinery fraction/product, loosely called a by-product in the booklet); Q99 (oil leads on energy density by volume; by mass, natural gas is higher). This is a practice set, never titled as a past paper, and Q101–1000 remain for later runs.
Paper Controls
Subject 1
Topic Section
10 solved MCQs shown directly below
Correct Answer: Coal
Coal is nicknamed “Buried Sunshine” because it stores ancient solar energy captured by plants millions of years ago.
Correct Answer: Coal
Coal is the fossil fuel most used for electricity generation in thermal power plants worldwide.
Correct Answer: 1859
Edwin Drake drilled the first commercial oil well at Titusville, Pennsylvania, in 1859.
Correct Answer: Pennsylvania, USA
The first commercial oil well was Drake’s well at Titusville, Pennsylvania, USA (1859).
Correct Answer: Saudi Arabia
Saudi Arabia has long been the world’s largest exporter of crude oil, ahead of Russia and the United States.
Correct Answer: 1960
The Organization of the Petroleum Exporting Countries (OPEC) was founded in Baghdad in September 1960.
Correct Answer: Vienna, Austria
OPEC has been headquartered in Vienna, Austria, since 1965 (it was founded in Baghdad in 1960).
Correct Answer: Venezuela
Venezuela holds the world’s largest proven oil reserves, about 303 billion barrels, ahead of Saudi Arabia.
Correct Answer: China
China holds the largest proven coal reserves in Asia, ahead of India and Indonesia.
Correct Answer: Thar, Sindh
The Thar coalfield in Sindh holds Pakistan’s largest coal reserves, estimated at around 175 billion tonnes.
Topic Section
10 solved MCQs shown directly below
Correct Answer: Natural Gas
LPG (propane and butane) is separated mainly during natural-gas processing, which supplies about 60% of world LPG; the rest comes from crude-oil refining.
Correct Answer: Liquefied Natural Gas
LNG is Liquefied Natural Gas — natural gas cooled to about −162 °C so it becomes a liquid for transport.
Correct Answer: Compressed Natural Gas
CNG is Compressed Natural Gas — natural gas compressed to a high pressure for use as a vehicle fuel.
Correct Answer: Vehicles
In Pakistan CNG is used chiefly as a transport fuel for cars, rickshaws and buses.
Correct Answer: Hydrogen
Hydrogen — especially green hydrogen made with renewable electricity — is called a green fuel because burning it produces only water.
Correct Answer: Hydrogen fuel cells
Hydrogen fuel cells generate electricity from hydrogen with water as the only emission, so they are promoted as the clean-transport fuel of the future.
Correct Answer: Petroleum
Petroleum formed from tiny marine organisms (plankton) buried under sediment and heated under pressure over millions of years.
Correct Answer: Oil
Petroleum (oil) is called the king of fossil fuels in the textbook one-liner usage, because of its dominant role in energy and transport.
Correct Answer: Thermal power generation
Burning coal heats water to steam that drives turbines, which is thermal power generation.
Correct Answer: Karachi
Karachi hosted the region’s earliest power plant (Karachi Electric Supply Corporation, 1914), which is the basis of this one-liner.
Topic Section
10 solved MCQs shown directly below
Correct Answer: Uranium
Most nuclear power plants generate energy by fission of uranium-235.
Correct Answer: Karachi (KANUPP, 1972)
KANUPP, Pakistan’s first nuclear power plant, entered commercial operation at Karachi in December 1972.
Correct Answer: USA
The United States generates more nuclear electricity than any other country, ahead of France and China.
Correct Answer: China
China has the world’s largest installed solar capacity and generates the most solar electricity.
Correct Answer: Sindh (Gharo, Jhimpir)
The Gharo–Jhimpir wind corridor in Sindh has Pakistan’s highest wind-power potential.
Correct Answer: Coal
Cement kilns are fired mainly with coal, which supplies the high heat needed to make clinker.
Correct Answer: Natural Gas
Natural gas supplies the hydrogen used to make ammonia, the base of nitrogen fertilizers.
Correct Answer: China
China produces more than half of the world’s coal, far ahead of India, the United States and Indonesia.
Correct Answer: USA
The United States is the world’s largest producer of natural gas, ahead of Russia and China.
Correct Answer: Carbon & Hydrogen
Fossil fuels are hydrocarbons — compounds made mainly of carbon and hydrogen.
Topic Section
10 solved MCQs shown directly below
Correct Answer: Anthracite
Anthracite is the highest-rank coal, with the most carbon (over 90%) and the highest heating value.
Correct Answer: Peat
Peat is the lowest-rank coal, with the least carbon and the most moisture.
Correct Answer: Electricity & Steel industry
Bituminous coal is the main coal used for electricity generation and, as coking coal, in steelmaking.
Correct Answer: Brown coal
Lignite, the lowest-ranked true coal, is also called brown coal because of its brown colour and low carbon content.
Correct Answer: Bitumen / Asphalt
Bitumen (asphalt), the heavy residue of crude-oil refining, is used to surface roads.
Correct Answer: Aviation fuel
Aviation (jet) fuel, a kerosene-type fraction of crude oil, powers aircraft.
Correct Answer: LPG
LPG (propane and butane), recovered during refining and gas processing, is the standard cooking fuel in cylinders.
Correct Answer: Coal
Coal contains sulfur compounds, so burning it releases sulfur dioxide; natural gas burns almost sulfur-free.
Correct Answer: Fossil fuels
Burning fossil fuels releases sulfur dioxide and nitrogen oxides, which form the acids in acid rain.
Correct Answer: Coal
Coal is the cheapest fossil fuel per unit of energy, which is why it remains widely used for power generation.
Topic Section
10 solved MCQs shown directly below
Correct Answer: Nuclear Fission
Nuclear fission splits heavy atomic nuclei (such as uranium-235), releasing large amounts of energy.
Correct Answer: Nuclear Fusion
Nuclear fusion joins light atomic nuclei (such as hydrogen isotopes), releasing energy — the process that powers the Sun.
Correct Answer: Hydrogen isotopes
Fusion reactors aim to fuse hydrogen isotopes (deuterium and tritium) into helium, releasing energy.
Correct Answer: Quaid-e-Azam Solar Park (Bahawalpur)
The Quaid-e-Azam Solar Park near Bahawalpur is Pakistan’s largest solar park.
Correct Answer: Solar Energy
Solar energy is inexhaustible on human timescales because the Sun will keep shining for billions of years.
Correct Answer: Geothermal
Geothermal energy uses heat from inside the Earth, so it runs day and night regardless of sunlight or weather.
Correct Answer: Coal
Coal remains the single largest source of world electricity, ahead of natural gas.
Correct Answer: Petroleum
Most plastics are made from petrochemicals derived from petroleum (oil and natural gas liquids).
Correct Answer: Oil
By volume, oil packs more energy than coal or natural gas, which is why it dominates transport fuel.
Correct Answer: Renewable Energy
Renewable energy (solar, wind, hydro, geothermal) is the planned long-term alternative to fossil fuels.
Source & verification
Built by GK360 from verified bank questions — every answer rechecked before publishing. Where the source printed no options, the answer options were prepared by GK360; the questions and correct answers are the verified originals.
Questions
No. This is a practice set built from the Sir Adnan '1000 Advanced Booklet Everyday Science' one-liner compilation. It is labelled practice in the title, slug and paperType and must not be quoted as an official past paper.
Every item in Q51–100 has a verifiable standard answer (coal, oil and gas facts, OPEC, LPG/LNG/CNG, nuclear, solar and wind, coal types and refinery products). Nothing had to be dropped as unanswerable, and no booklet answer needed correction; five items carry NOTE flags explaining a nuance instead.
The source prints statement + answer only, with no (a)-(d) options. Under Anas's 2026-10-28 single-format decision, each item is published in the standard MCQ format with 3 authored plausible distractors; the questions and answers are the booklet's, and every answer was verified as the standard answer. optionsSource is recorded as 'authored' so authored options are never mistaken for the paper's.
Q51–100 cover coal, oil and OPEC, gas fuels (LPG, LNG, CNG), hydrogen, nuclear, solar and wind energy, coal types and refinery products. The booklet runs to 1000 items; Q101–1000 are held for later conversion runs in the same format.
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