CSS · Federal Public Service Commission · 2026
Solved CSS MPT Everyday Science practice set from the 1000 Advanced Booklet, Q801–850 — 33 new MCQs with verified answers and explanations (SI units, chemistry, the human body, space, vitamins). A practice compilation, not a past paper.
Paper Snapshot
Questions
33
Time
33
Minutes
Subjects
1
Topics
7
Read mode shows correct answers. Attempt mode hides answers, starts timer, and shows your result after submission.
About this paper
Part 17 (Q801–850) 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'. Only 33 of 50 printed items are published. 17 restate facts already published in earlier parts of the same booklet and are cross-linked, not re-extracted: Q803 hardest natural substance (Q103 in Q101-150, Diamond); Q808 vitamin C deficiency causing scurvy (Q229 in Q201-250); Q811 SI unit of electric charge (Q751 in Q751-800, Coulomb); Q816 vitamin C deficiency causing bleeding gums (the scurvy fact, Q229 in Q201-250); Q818 gas responsible for acid rain (Q335 in Q301-350, sulphur dioxide); Q825 element used in making glass (Q134 in Q101-150, silica); Q828 universal donor blood group (Q217 in Q201-250, O Negative); Q829 SI unit of electric potential difference (Q760 in Q751-800, Volt); Q831 smallest muscle in the human body (Q271 in Q251-300, stapedius); Q832 vitamin preventing night blindness (Q226 in Q201-250, vitamin A); Q834 gas causing global warming most (Q442 in Q401-450, carbon dioxide as the main greenhouse gas from fossil fuels); Q836 SI unit of energy (Q343 in Q301-350, Joule); Q839 organ producing bile juice (Q284 in Q251-300, liver); Q841 vitamin D deficiency causing rickets (Q230 in Q201-250); Q843 unit of frequency (Q739 in Q701-750, Hertz); Q847 red planet (Q657 in Q651-700, Mars); Q849 normal human body temperature in Celsius (Q219 in Q201-250, 37°C). No printed item in this stretch is dropped as unanswerable.
Paper Controls
Subject 1
Topic Section
2 solved MCQs shown directly below
Correct Answer: Glucometer
A glucometer measures blood sugar level: a small drop of blood on a test strip reacts with an enzyme and the meter reads the glucose concentration, usually in mg/dL.
Correct Answer: Altimeter
An altimeter measures altitude: in aircraft it usually works from air pressure, which falls as height rises, and is calibrated against sea-level pressure.
Topic Section
10 solved MCQs shown directly below
Correct Answer: Helium
Helium is the gas used in balloons because it is lighter than air: it lifts the balloon, and unlike hydrogen, the other light lifting gas, it is non-flammable, so it is the safe choice for party and weather balloons.
Correct Answer: K
The chemical symbol of potassium is K: from its Latin name kalium (Na is sodium, Ca calcium, P phosphorus).
Correct Answer: Carbon dioxide
Carbon dioxide is the gas used in the preparation of soft drinks: it is dissolved under pressure to carbonate the drink, and it escapes as fizz when the bottle is opened.
Correct Answer: Sodium Carbonate
The chemical name of washing soda is sodium carbonate: its common form is the decahydrate Na2CO3.10H2O, used as a water softener and cleaning agent (sodium bicarbonate is baking soda, calcium carbonate is chalk and limestone).
Correct Answer: NaCl
The chemical formula of common salt is NaCl: one sodium ion bonded to one chloride ion, the table salt used in cooking and food preservation.
Correct Answer: C₂H₅OH
The chemical formula of ethanol is C2H5OH: the alcohol in drinks and spirits, made by fermenting sugars (CH3OH is methanol, C6H12O6 glucose, CH4 methane).
Correct Answer: Ca(OH)₂
The chemical formula of lime water is Ca(OH)2: lime water is a solution of slaked lime, calcium hydroxide, in water (CaO is quicklime, CaCO3 limestone and chalk).
Correct Answer: Fe
The chemical symbol of iron is Fe: from its Latin name ferrum (Pb is lead, Zn zinc, Cu copper).
Correct Answer: Nitrogen
Nitrogen is the gas used to preserve food items: flushing food packs with nitrogen displaces oxygen, which slows oxidation and the growth of spoilage microbes without reacting with the food.
Correct Answer: Ag
The chemical symbol of silver is Ag: from its Latin name argentum (Au is gold, Pb lead, Hg mercury).
Topic Section
4 solved MCQs shown directly below
Correct Answer: Pascal
The SI unit of pressure is the pascal: one pascal is one newton of force per square metre, so atmospheric pressure at sea level is about 101,325 pascals.
Correct Answer: Lumen
The SI unit of luminous flux is the lumen: it measures the total visible light emitted by a source, while the candela measures intensity in a direction and the lux measures illuminance falling on a surface.
Correct Answer: Henry
The SI unit of inductance is the henry: one henry is the inductance in which a current changing at one ampere per second induces one volt (the farad is capacitance, the ohm resistance, the tesla magnetic flux density).
Correct Answer: Weber
The SI unit of magnetic flux is the weber: one weber is the flux that, falling to zero in one second, induces one volt in a single-turn coil (the tesla is flux density, the henry inductance).
Topic Section
8 solved MCQs shown directly below
Correct Answer: About 70%
The booklet's conventional one-liner is that the human body contains about 70% water: water is by far the largest single constituent of the body, filling cells, blood and the fluid between cells.
Correct Answer: Two
The human brain consists of two hemispheres: the left and right cerebral hemispheres, joined by the corpus callosum, with the left usually dominant for language in right-handed people.
Correct Answer: 20 Hz to 20,000 Hz
The human ear can hear sound frequencies between 20 Hz and 20,000 Hz: sounds below 20 Hz are infrasound and above 20,000 Hz ultrasound, and the upper limit falls with age.
Correct Answer: Protein
The human eye lens is made up of protein: its fibres are packed with crystallin proteins, which give the lens its transparency and refractive power, suspended in water.
Correct Answer: Lungs
Pneumonia affects the lungs: it inflames the air sacs (alveoli), which fill with fluid or pus, making breathing painful and reducing oxygen uptake.
Correct Answer: Pituitary gland
The pituitary gland controls growth in humans: its growth hormone (somatotropin) drives the growth of bones and tissues in childhood and adolescence, which is why pituitary disorders cause dwarfism or gigantism.
Correct Answer: Dr. Christiaan Barnard
The first human heart transplant was performed by Dr. Christiaan Barnard: on 3 December 1967 at Groote Schuur Hospital, Cape Town, he transplanted the heart of a donor into Louis Washkansky, who survived 18 days.
Correct Answer: Skin
The skin excretes sweat: sweat glands in the skin release sweat onto the surface, cooling the body by evaporation and removing small amounts of salts and urea.
Topic Section
5 solved MCQs shown directly below
Correct Answer: Mitochondria
The mitochondria are known as the powerhouse of the cell: they generate most of the cell's ATP, the energy currency that powers its work, by aerobic respiration.
Correct Answer: Transpiration
Transpiration is the process by which plants lose water: water evaporates from the leaves, mainly through the stomata, pulling more water up from the roots and cooling the plant.
Correct Answer: Ecology
The study of environment is called ecology: the branch of biology that studies how organisms relate to each other and to their surroundings, from individual habitats to whole ecosystems.
Correct Answer: Roots
Roots absorb water from the soil: root hairs hugely increase the absorbing surface, and osmosis draws water into the root cells, from where it rises to the rest of the plant.
Correct Answer: Taxonomy
Taxonomy is the branch of biology dealing with classification: it names and groups organisms into ranks from domain and kingdom down to genus and species.
Topic Section
3 solved MCQs shown directly below
Correct Answer: Proxima Centauri
Proxima Centauri is the nearest star to Earth after the Sun: a red dwarf about 4.24 light-years away, in the Alpha Centauri system, while the next-brightest star Sirius is about 8.6 light-years away.
Correct Answer: Jupiter
Jupiter has the Great Red Spot: a giant anticyclonic storm, wider than the Earth, that has raged in its southern atmosphere for at least 150 years and is still shrinking.
Correct Answer: Ganymede
Ganymede is the largest moon of Jupiter: it is also the largest moon in the solar system, bigger than the planet Mercury, and the only moon with its own magnetic field.
Topic Section
1 solved MCQs shown directly below
Correct Answer: Namira Salim
Namira Salim was the first Pakistani woman to travel to space: a Virgin Galactic Founder Astronaut, she flew on the Galactic 04 mission on 6 October 2023, becoming the first Pakistani to travel to space.
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.
This stretch of the booklet largely restates its own earlier parts: 17 of the 50 items repeat facts already published in Q1–800 of the same booklet (diamond as the hardest natural substance, vitamin C and scurvy, the coulomb and the volt, sulphur dioxide and acid rain, silica glass, O Negative as universal donor, the stapedius, vitamin A and night blindness, carbon dioxide and global warming, the joule, bile from the liver, vitamin D and rickets, the hertz, Mars as the red planet, and 37°C body temperature). Those facts are cross-linked to their earlier publication, not re-extracted.
The booklet prints a statement and its answer only, with no options. Each item is published in the standard 4-option MCQ format with 3 authored plausible distractors, under the 2026-10-28 single-format decision; the answers themselves are the booklet's verified standard answers.
No — that is the booklet's wording, corrected here. Namira Salim is a Virgin Galactic Founder Astronaut: she bought a Virgin Galactic ticket in 2006, was launched by the Government of Pakistan as its 'First Pakistani Astronaut', and flew to space on Virgin Galactic's Galactic 04 mission on 6 October 2023, becoming the first Pakistani to travel to space. She was not selected by NASA.
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