PPSC PAST PAPERS MCQS 2004 TO 2020 OF EVERYDAY SCIENCE
PPSC 20 years Subject
wise Past Papers
Click here
Show Answers
چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
نظام شمسی کا سب سے بڑا سیارہ کونسا ہے؟
Earth
Mars
Jupiter
Saturn
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Jupiter is the largest planet of the solar system. It is the 5th planet in our solar system. The planet in the solar system with the maximum number of moons is Jupiter. Jupiter has 79 known moons. The Great Red Spot is a prominent feature of Jupiter. Jupiter is the giant planet and the fastest-rotating planet in our solar system. It rotates approximately once every 10 hours. The age of Jupiter is about 4.603 billion years. Mercury is the smallest planet of the solar system.
کون سا وٹامن خون کے جمنے میں مدد کرتا ہے؟
Vitamin A
Vitamin B
Vitamin K
Vitamin D
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Vitamin K helps to make various proteins that are needed for blood clotting and the building of bones.
Prothrombin is a vitamin K-dependent protein directly involved with blood clotting.
while
Vitamin C may protect the body against the effects of pollution.
It may also prevent blood clots and reduce bruising.
ND12_8_2023
سٹینلیس سٹیل کس کا مرکب ہے؟
Iron and Manganese
Iron, Chromium and Zinc
Iron, Carbon and Nickel
Iron, Chromium and Nickel
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Stainless steel is a alloys that contain a minimum of approximately 11% chromium , a composition that prevents the iron from rusting and also provides heat-resistant properties.
تھرمامیٹر کس نے ایجاد کیا تھا؟
Einstein
Sir Thomas albert
Galileo
Daniel Gabriel Fahrenheit
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
In 1714, Dutch scientist Daniel Gabriel Fahrenheit invented the first reliable thermometer,
using mercury instead of alcohol and water mixtures.
In 1724 , he proposed a temperature scale which now bears his name.
Galileo made his first telescope in 1609
Barometer Inventor: Evangelista Torricelli
Steam engine Inventor: Thomas Savery
Microscope Inventor: Zacharias Janssen
باغات کا مطالعہ ______ کے نام سے جانا جاتا ہے؟
Agriculture
Sericulture
Horticulture
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Horticulture is the study and practice of cultivating fruits, vegetables, flowers, and ornamental plants.
Including the design and management of gardens.
مندرجہ ذیل میں سے سب سے زیادہ توانائی والا فوٹون کون سا ہے؟
Gamma rays
Alpha rays
Beta rays
None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Gamma rays are the highest energy photons, with energies typically above 100,000 electronvolts (eV).
They are a type of electromagnetic radiation, like X-rays and visible light , but with much shorter wavelengths and higher frequencies.
کون سی دھات بجلی کا بہترین موصل ہے؟
Silver
Copper
Brass
None of them
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Copper, silver, aluminum, gold, steel , and brass are common conductors of electricity.
The most highly conductive metals are silver, copper, and gold
Silver is the first-best conductor of heat.
Copper is the second-best conductor of heat.
******
ND30-12-2022
پانی کی مستقل سختی کو دور کرنے کے لیے کون سا عنصر استعمال ہوتا ہے؟
Washing soda
Ion exchange process
Zeolite process
Heating
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Washing soda is also known as sodium carbonate (Na2CO3).
It is used to remove permanent hardness of water.
Permanent hardness is caused by the presence of magnesium and calcium sulfates or chlorides in water, which cannot be removed by boiling.
Washing soda helps to precipitate these minerals, making the water softer.
کون سا وٹامن پانی میں سب سے زیادہ حل ہوتا ہے؟
Vitamin D
Vitamin B
Vitamin C
Both B and C
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Vitamins B and C are water-soluble vitamins, meaning they dissolve easily in water.
Vitamin B : Includes several B vitamins (B1, B2, B3, etc.), all of which are water-soluble . Vitamin C (Ascorbic acid) : Also highly soluble in water .
ہائگرومیٹر کس کی پیمائش کے لیے استعمال کیا جاتا ہے؟
Humidity of air
Speed of sound
Density of milk
Specific gravity of liquids
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
A hygrometer is an instrument used to measure the moisture content or humidity level in the air.
It often used in weather forecasting and environmental studies.