1000 Science GK Questions In English PDF Download

1000 Science GK Questions In English PDF Download

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1000 Science GK Questions In English PDF Download

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1000 Science GK Questions In English PDF Download

1000 Science GK Questions In English PDF Download

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General Science Question and Answer (Set – 01)

01. Which part of the eye determines the color of the eye?
Answer – Iris (iris)

02. What is the effect of increase in altitude on atmospheric pressure?
Atmospheric pressure decreases

03. What controls the amount of light entering the eye?
Answer- Pupil (star of the eye)

04. Which instruments convert sound energy into electrical energy?
Answer – Microphone – Mic (Invention – Emily Berliner)

05. Which instruments convert chemical energy into electrical energy?
Answer – Electric cell  (1000 Science GK Questions In English PDF Download)

06. Why does a chameleon change color?
Answer – Change color to tolerate heat

 

07. Give three examples of expansion of gases?
Answer – The aroma of food, the smell of incense sticks and the smell of perfume

08. Electric motor, telephone, telegraph and electric bell work on which effect of electric current?
post-magnetic effect

09. Why does a drop of oil spread on water?
Answer: The surface tension of water is high

10. Due to which the drop of liquid is spherical?
north surface tension (1000 Science GK Questions In English PDF Download)

11. With the help of which the purity of the metal is determined?
Answer: Archimedes’ principle

12. The energy generated during nuclear fission reaction is used for?
Answer – In making electricity

 

13. Why does water boil at a lower temperature in the mountains?
Answer – The air pressure is less on the mountains

14. Fuse wire is a thin wire which is made of ———- alloy?
Answer: Tin and Lead

15. Why do clouds float in the atmosphere?
Answer – Due to low density or due to low density

16. Which are the only two tissues, which do not receive oxygen from the blood?
Answer – Nails and cornea

17. Which is the smallest bone in the human body?
north steppes (1000 Science GK Questions In English PDF Download)

18. On what principle does the refrigerator work?
Answer – On the evaporation theory of liquid

19. On what does the duration of the pendulum depend?
over the length

 

20. On what principle does a washing machine work?
north centrifugation

21. Deficiency of Vitamin B-1 causes which disease?
Answer – Beriberi

22. Nichrome, the heating filament of an electric press, is placed between?
Answer – Mica

23. Who was the first to measure the speed of light?
Answer – Romer (1000 Science GK Questions In English PDF Download)

 

24. Why does a cyclist bend while taking a turn?
Ans- It bends so that the center of gravity remains inside the base to avoid falling

25. How many isotopes of hydrogen are there?
Answer – Three (Protium, Deuterium and Tritium)

General Science Question and Answer (Set – 02)

01. What is used to control a chain reaction in a nuclear reactor?
Answer- cadmium rod

02. Name some bacterial diseases?
Answer- TB (tuberculosis), plague, diphtheria, leprosy (leprosy), tetanus, pneumonia, cholera etc.

03. What is the formula of Plaster of Paris?
Answer – CaSO4.1/2 H2O (Calcium Sulphate Hydrate)

04. Cement is mainly a mixture of ——— compounds?
Ans- Calcium silicate and aluminate compounds (1000 Science GK Questions In English PDF Download)

05. What is another name for graphite?
Answer – Black lead and plumbgo

06. Whose full is ‘Chloro Fluoro Carbon’?
Answer- CFC

07. Which fuel is being used in place of petrol and diesel in vehicles running in metropolitan cities?
Answer – Compressed Natural Gas (CNG)

08. Natural rubber is a polymer of?
Answer – Isoprene

09. Detergents ——— give good results even with water?
North hard water

10. How many teeth develop twice in a human’s life span?
Answer – 20

11. In which organ most of the digestion takes place in the human body?
north small intestine

12. Who first studied the blood circulation system?
Answer – William Harvey

13. Whose function is to initiate the heartbeat?
Answer – Pace maker

14. Which metal is found in Raktak? (1000 Science GK Questions In English PDF Download)
Answer – Iron

15. Where does the process of digestion start in humans?
north face

16. Does blood pressure increase or decrease while sleeping?
answer – decreasing

17. What is the pH value of human blood?
Answer- 7.4

18. Where does the purification of blood take place?
Answer – Kidney

19. Does the human blood pressure increase or decrease while running?
Answer – Increases

20. Which enzyme is found in saliva?
Answer – Tylin

21. Bile gets accumulated in?
Answer – In Pittahsham

22. What is the life span of human red blood cells? (1000 Science GK Questions In English PDF Download)
Answer – 120 days

23. The pressure exerted by blood on whose walls is called ‘blood pressure’?
north artery

24. Name some genetic diseases?
Answer – Haemophilia and color blindness

25. The process of purification of blood in the human body is called?
Answer – Dialysis

1000 Science GK Questions In English PDF Download

1000 Science GK Questions In English PDF Download

General Science Question and Answer (Set – 03)

01. What is used to control a chain reaction in a nuclear reactor?
Answer- cadmium rod

02. Name some bacterial diseases? (1000 Science GK Questions In English PDF Download)
Answer- TB (tuberculosis), plague, diphtheria, leprosy (leprosy), tetanus, pneumonia, cholera etc.

03. What is the formula of Plaster of Paris?
Answer – CaSO4.1/2 H2O (Calcium Sulphate Hydrate)

04. Cement is mainly a mixture of ——— compounds?
Ans- Calcium silicate and aluminate compounds

05. What is another name for graphite?
Answer – Black lead and plumbgo

06. Whose full is ‘Chloro Fluoro Carbon’?
Ans- CFC (mixture of chlorine, fluorine and carbon)

07. Which fuel is being used in place of petrol and diesel in vehicles running in metropolitan cities?
Answer- Compressed Natural Gas (CNG – Compressed Natural Gas)

08. Natural rubber is a polymer of?
Ans- Isoprene (C5H8 – unsaturated hydrocarbon)

09. Detergents ——— give good results even with water?
Ans- Hard water (high amount of salts of calcium and magnesium)

10. How many teeth develop twice in a human’s life span? (1000 Science GK Questions In English PDF Download)
Answer – 20

11. In which organ most of the digestion and absorption of food takes place in the human body?
Answer – small intestine (small intestine)

12. Who first studied the blood circulation system?
Answer- William Harvey (was from England)

13. Whose function is to initiate the heartbeat?
Answer – Pace maker

14. Which metal is found in blood?
Answer – Iron

15. Where does the process of digestion start in humans?
north face

16. Does the blood pressure decrease or increase while sleeping?
answer – decreasing

17. What is the pH value of human blood?
Answer- 7.4 (Would be alkaline in nature) (1000 Science GK Questions In English PDF Download)

18. Where does the purification of blood take place?
Answer- Kidney (renal or kidney)

19. Does the human’s blood pressure decrease or increase while running?
Answer – Increases

20. Which enzyme is found in saliva?
Answer – Tylin

21. Where are the bile stored?
Answer- In Gall Bladder

22. What is the life span of human red blood cells?
Answer – 120 days

23. The pressure exerted by blood on whose walls is called ‘blood pressure’?
Ans- Artery (carries pure blood forward from the heart)

24. Name some genetic diseases?
Answer – Haemophilia and color blindness

25. The process of purification of blood in the human body is called?
Answer – Dialysis

26. Which gas is currently being used in place of CFC? (1000 Science GK Questions In English PDF Download)
Answer- HFC (Hydrochlorofluoro)

General Science Question and Answer (Set – 04)

01. Which is called the graveyard of RBC?
Answer – please

02. What is the special requirement for the digestion of food in the stomach?
Answer – Enzyme

03. Saliva helps in digestion of
North Starch

04. Which acid helps in digestion of food?
Answer: Hydrochloric acid

05. Whose full is ‘Disk Operating System’?
Answer- DOS

06. What is the synthesis of Krebs cycle?
Answer: Pyruvic acid

07. Which one converts proteins into polypeptides? (1000 Science GK Questions In English PDF Download)
Answer – Pepsin

08. By whom is bile produced?
north liver

09. Which vitamin is active in blood coagulation?
Answer – Vitamin K

10. Which country is the largest contributor to CO2 emissions?
Answer – United States of America

11. Who invented the electric press?
Answer – Henry Scheele

12. In which industry mica is used as raw material?
Answer – Electricity Industry

13. Does the boiling point of water increase or decrease with increasing pressure?
Answer – Grows

14. What is the enemy element of copper?
Answer – Sulfur or Sulfur

15. Who discovered radioactivity? (1000 Science GK Questions In English PDF Download)
Answer – Henry Becquerel

16. According to which Newton’s law ‘for every action there is an equal and opposite reaction’? Answer: According to Newton’s third

17. Sun appears red while rising and setting because?
Answer – Red color is the least scattered

18. How does an air bubble behave under water?
Answer: Like a concave lens

19. Who is the father of botany?
Answer – Theophrastus

20. If a man is approaching a plane mirror with a speed of 4 m/s, then with what speed will the image of the man appear in the mirror?
Answer – 8 m/s

21. Which mirror is installed next to the driver’s seat in cars, trucks and buses?
north convex mirror

22. Elements which have properties of both metals and non-metals are called?
Answer – Metallurgy

23. A bomb explodes on the moon. Will its sound be heard on earth or not?
not answer

24. When water falls from a height in a spring, its temperature becomes ———-
north rise

25. In which the speed of sound is maximum? (1000 Science GK Questions In English PDF Download)
in steel

1000 Science GK Questions In English PDF Download

1000 Science GK Questions In English PDF Download

General Science Question and Answer (Set – 05)

01. What is the speed of sound in vacuum?
Ans- Sound cannot travel in a vacuum (the medium for the propagation of sound)

02. What is measured by ‘Venturimeter’?
Answer: The rate of flow of water

03. What is the SI unit of pressure? (1000 Science GK Questions In English PDF Download)
Answer- Pascal (1 Pa = 1 N/m2) (Pascal’s Principle – Blaise Pascal)

04. Curie is the name of the unit of?
Answer – Radioactive Righteousness

05. What is the time period of ‘second pendulum’?
Answer – 2 seconds

06. Name the fat soluble vitamin?
Answer – VIT – KEDA

07. Who is known as the ‘Father of Biology’?
Answer – Aristotle

08. Which color has the shortest wavelength?
Answer- Violet (highest wavelength – red colour)

09. If the door of the refrigerator placed in the room is opened, then the temperature of the room becomes ———-? Answer- Badh (It works on the principle of evaporation)

10. How many Fundamental Units are there in total?
Answer – 7 (length, mass, time, electric current, temperature, light intensity and amount of matter) (1000 Science GK Questions In English PDF Download)

11. The word Botany (Botany) is derived from which language word?
north greek

12. By whom does milk turn sour?
Answer – Bacteria (Lactic Acid)

13. A girl is swinging. Another girl comes and sits beside him, then the time period of the swing will be ————?
Answer – Unchanged

14. Due to which vitamin blood clot is formed in the human body?
Answer – Vitamin K (phylloquinone)

15. Which vitamin is required for the operation of human eyes?
Answer- Vitamin A (Retinal) (Night Blindness) (1000 Science GK Questions In English PDF Download)

16. Which vitamin is removed by washing peeled vegetables?
Answer – Vitamin C (Ascorbic ACID – C6H8O6)

17. Who was the first to use the word ‘Biology’? (1000 Science GK Questions In English PDF Download)
Answer- Lamarck and Trevirens

18. What is SARS (S.A.R.S.)?
Answer – SARS – Severe Acute Respiratory Syndrome

19. Who is called the ‘Father of Medicine’?
Answer – Hippecrates

20. Who is called the father of Zoology?
Answer – Astu

21. Who is the father of Botany? (1000 Science GK Questions In English PDF Download)
Answer – Theophrastus

22. What is studied in Phycology?
Answer – Algae

23. Environment is studied under which branch of biology?
Answer: Ecology

24. The study of flowers is called? (1000 Science GK Questions In English PDF Download)
Answer – Anthology

25. Cholera is caused by?
Answer – Bacteria

General Science Question and Answer (Set – 06)

01. What is the reason for solidification of milk in the form of curd?
Answer – Lacto Bacillus bacterium

02. AIDS spreads due to? (1000 Science GK Questions In English PDF Download)
by physical contact

03. What happens in a virus?
Answer: Nucleic acid and protein

04. How many colors are there in a rainbow?
Answer – Seven colors (Purple, Violet, Blue, Green, Yellow, Orange and Red)

05. ‘Foot and mouth disease’ occurring in animals is caused due to? (1000 Science GK Questions In English PDF Download)
Answer- Virus (most harmful to milking animals)

06. What is Mushroom?
Answer – Fungus (Mycology)

07. When was penicillin discovered?
Answer – 1928 (Alexander Fleming) (obtained penicillin – from fungus)

08. The disease named ‘Athlete’s foot’ is caused by?
Answer – Fungus named Tinea pedis

09. Lichens are made up of which two classes of plants?
Answer – Fungi and Algae

10. Who gets litmus? (1000 Science GK Questions In English PDF Download)
Answer – from lichen

11. Fungi do not make their own food but they are ————?
Answer: Various hosts

12. What is the function of hemoglobin in the body?
Answer: Transport of oxygen

13. Where do red blood cells (RBCs) originate? (1000 Science GK Questions In English PDF Download)
Answer – Bone marrow

14. In the process of digestion proteins are converted into which substance?
Ans- Amino acids (20 types of amino acids)

15. What is the blood pressure of a healthy person?
Answer – 120/80mm 120 mm (systolic) and 80 mm (diastolic)

16. Which is the organ that stores carbohydrates in the form of glycogen in the human body?
Answer- Liver (synthesizes proteins)

17. What is the chemical formula of Bleaching Powder?
Answer – CaOCl2 (Calcium Hypochlorite)

18. Deficiency of Vitamin A is caused by?
Answer- Night blindness

19. Two plane mirrors are inclined at an angle of 60° to each other. What will be the number of images formed of a ball placed between them?
Answer – Five

20. If the length of a simple pendulum is increased by 4%, then by what percent will its time period increase? (1000 Science GK Questions In English PDF Download)
Answer- 2%

21. We listen to the programs of different stations by turning the knob of the radio. Is it possible?
Answer – Due to resonance

22. What should an astronaut use to find the time in a satellite?
north spring clock

23. If a body is thrown from the earth with a velocity of 11.2 km/s, then the body will never return to ———-?
Answer- Prithvi (Earth’s escape velocity – 11.2 km/s)

24. The main function of white blood cell (WBC) is? (1000 Science GK Questions In English PDF Download)
Answer – possessing immunity

25. Organisms of fungus class do not have ———-?
Answer – Chlorophyll

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