PPSC PAST PAPERS ALL MCQS 2024 OF EVERYDAY SCIENCE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- Joule
- Energy/Heat
- Work
- None of these
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Explanation
Joule is a unit of work or energy or heat.
Joule is a scalar quantity.
SI base units: kg⋅m2⋅s−2
Symbol: J
Additional Information:
It is equal to the work done by the force of one newton acting through one meter.
Named in honor of the English physicist James Prescott Joule.
Joule equals 107 ergs or approximately 0.7377 foot-pounds.
پھول کے نر تولیدی حصے کو کیا کہتے ہیں؟
- Stamen
- Pistil
- Carpel
- Anther
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Explanation
- The male reproductive part of a flower is called the Stamen.
It consists of two parts:
- Anther (produces pollen grains)
- Filament (supports the anther)
بھاپ کا انجن کس نے ایجاد کیا؟
- Bessel
- James Watt
- Faraday
- All of these
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Explanation
James Watt, a Scottish engineer, patented improvements to the steam engine in 1781.
He significantly enhancing its efficiency and power, and revolutionizing industry and transportation.
ہیموگلوبن کا بنیادی جزو _____ ہے؟
- Calcium
- Iron
- Chlorine
- Copper
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Explanation
The main constituent of hemoglobin is iron.
Hemoglobin transports oxygen and exhibits a quaternary protein structure.
Iron is crucial for hemoglobin formation; its deficiency can impact hemoglobin production.
Heme in hemoglobin is protoporphyrin IX.
Infants reach adult hemoglobin levels by the end of their first year.
Ferric ions are not part of hemoglobin.
Hemoglobin is found dissolved in plasma.
زمین کی پرت میں سب سے زیادہ پرچر دھات _____ ہے؟
- Aluminum
- Iron
- Carbon
- Silicon
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Explanation
Aluminum is the most abundant metal in the Earth's crust.
It comprising about 8% of its weight.
It is primarily found in the form of bauxite ore.
وہ کونسا سیارہ ہے جس میں چاند نہیں ہے؟
- Venus
- Neptune
- Mars
- All of these
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Explanation
Venus is the hottest planet in the solar system.
Venus has no moons.
The "black planet" is Venus.
The second closest planet to the sun is Venus.
The slowest-rotating planet is Venus.
Venus is similar in size to Earth.
Additional information:
Eight planets in the solar system:
- Mercury
- Venus
- Earth
- Mars
- Jupiter
- Saturn
- Uranus
- Neptune
ریکٹر اسکیل کس چیز کی پیمائش کے لیے استعمال کیا جاتا ہے؟
- Rainfall
- Magnitude of velocity
- Magnitude of earthquakes
- Water level in the dam
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Explanation
The intensity of earthquake is measured by Richter Scale.
Richter Scale was invented in 1935.
آنکھوں کے عطیہ میں عطیہ کرنے والے کی آنکھ کا کون سا حصہ استعمال ہوتا ہے؟
- Lens
- Cornea
- Retina
- All of these
- None of these
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Explanation
When someone receives an “eye transplant,” they are given a donor cornea, the clear front part of the eye.
The corneal transplant requires a functioning retina and optic nerve to restore vision.
ND12_8_2023
ناقص ہوادار عمارتوں میں کون سی گیس جمع ہو سکتی ہے؟
- Xenon
- Nitrogen
- Hydrogen
- Radon
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Explanation
Radon is a gas that can be accumulated in poorly ventilated buildings.
Radon is released from Radium.
It originates from the natural decay of uranium in soil, rock, and water
It can enter buildings through cracks and other openings in the foundation.
Prolonged exposure to high levels of radon gas can increase the risk of lung cancer
قطب شمالی اور جنوبی پر دن اور رات کا دورانیہ ______ ہے؟
- 3 months
- 5 months
- 4 months
- 6 months
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Explanation
The poles experience six months of the day and six months of the night.
This is since earth is tilted on its axis.
Also, due to this, each pole is tilted towards and away from the sun for about six months.
When the North Pole is tilted towards the sun, it has continuous daylight.
