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General Science NCERT MCQ Questions | Test Paper 29

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General Science NCERT MCQ Questions For Competitive exams

 

Test Paper 29

 

Learn General science NCERT MCQ Questions 

1. Water Day is observed on ?

a) 21 March

b) 22 March

c) 23 March

d) 24 March

  b) 22 March

 

2. United Nations declared 2019 as ?

a) International Year of Indigenous Languages

b) International Year of Yoga

c) International Year of Water

d) International Year of Family Farming

  a) International Year of Indigenous Languages

 

3. Process of sleeping of water into ground is called ?

a) Defiltration

b) Filtration

c) Infiltration

d) None

  c) Infiltration

 

4. Decomposition of leaves and plant material by soil microorganisms.is called as ?

a) Fertilizer

b) Humus

c) Both

d) None

 b) Humus

 

5. In India, forest area covers about ?

a) 11%

b) 21%

c) 31%

d) 41%

 b) 21%

 

6. Angle between normal and incident ray is called as ?

a) Angle of reflection

b) Angle of refraction

c) Angle of incidence

d) None

   c) Angle of incidence

 

7. Angle between normal and reflected ray is called as ?

a) Angle of reflection

b) Angle of refraction

c) Angle of incidence

d) None

 a) Angle of reflection

 

8. Law of refection ?

a) Angle of incidence is grater than angle of reflection

b) Angle of incidence is lesser than angle of reflection

c) Angle of incidence is equal than angle of reflection

d) None

  c) Angle of incidence is equal than angle of reflection

 

9. Laternal inversion ?

a) Image formed by mirror the left of object appears on right and right appears on left

b) Image formed by mirror left of object appears on left and right appears on right

c) Both

d) None

 a) Image formed by mirror the left of object appears on right and right appears on left

 

10. Splitting of light into its colour is called as ?

a) Inversion

b) Dispersion

c) Reflection

d) None

  b) Dispersion

 

11. Pupils are found in ?

a) Cornea

b) Ciliary muscle

c) Iris

d) Lens

   c) Iris

 

12. Size of Pupils are controlled by

a) Cornea

b) Cilliary muscle

c) Iris

d) Lens

  c) Iris

 

13. Colors of eyes, green eyes or black eyes is the colour of ?

a) Cornea

b) Cilliary muscle

c) Iris

d) Lens

  c) Iris

 

14. In Optic nerve, cones and rods are ?

a) Cones- Sensitive to bright light and Rods-  Sensitive to dim light 

b) Cones- Sensitive to dim light and Rods-  Sensitive to dim light

c) Cones- Sensitive to bright light and Rods-  Sensitive to bright light

d) None

  a) Cones- Sensitive to bright light and Rods- Sensitive to dim light

 

15. Normal adult can read with an eyes is about ?

a) 10 cm

b) 25 cm

b) 50 cm

d) 100 cm

   b) 25 cm

 

16. For visually challenged persons, Braille code helps them to read. In Braille code how many dot patterns are available ?

a) 60 dot patterns/characters

b)  61 dot patterns/characters

c)  62 dot patterns/characters

d)  63 dot patterns/characters 

  d) 63 dot patterns/characters

 

17. Different patterns are formed in Kaleidoscope, because of?

a) Multiple Refraction

b) Multiple Reflection

c) Multiple Dispersion

d) None

   b) Multiple Reflection

 

18. Sun Light is called as ?

a) White light

b) Prism light

c) VIBGYOR light

d) None

   a) White light

 

19. New moon day ?

a) Moon is between the earth and the sun

b) Moon is opposite the earth and the sun

b) Moon is middle in the earth and the sun

d) None

 a) Moon is between the earth and the sun

 

20. In how many days moon takes to orbit the Earth ?

a) 25.3 days

b) 26.3  days

c) 27.3 days

d) 28.3 days

  c) 27.3 days

 

21. In how many days lunar phase completes,  i e., from new Moon to new Moon?

a) 27.3 days

b) 28.3 days

c) 29.5 days

d) 30.5 days

  c) 29.5 days

 

22. Moon visible to us due to ?

a) Refraction of sunlight

b) Reflection of sunlight

c) Dispersion of of sunlight

d) None

  b) Reflection of sunlight

 

23. Moon revolves around the Earth takes 27.3 days and Moon rotates his its orbit also takes 27 days. Is this valid statement ?

a) Yes

b) No

   a) Yes

 

24. Which of following statement is correct ?

a) Moon has atmosphere

b) Moon has No atmosphere

c) Both

 b) Moon has No atmosphere

 

25. Which of following statement is correct ?

a) Sound can be heard on Moon

b) Sound cannot be heard on Moon

c) Sound can be heard on Moon only in nights

d) None

  b) Sound cannot be heard on Moon

 

26. Electrical Fuse wire is made up of alloy ?

a) Lead

b) Tin

c) Copper

d) All the above

 d) All the above
Note: It is known as Type metal

 

27. Electrical fuse wire as ?

a) High Melting Point and High Resistance

b) High Melting Point and Low Resistance

c) Low Melting Point and High Resistance

d) Low Melting Point and Low Resistance

   c) Low Melting Point and High Resistance

 

28. Electrical Fuse is kept in ___________ circuit to protect from damage caused by high voltage ?

a) Series

b) Parallel

c) Both

d) None

   a) Series

 

29. Which of the following wire is used as filament in the electrical heater ?

a) Copper

b) Silver

c) Iron

d) Nichrome

 d) Nichrome

 

30.Decorating and street lights are arranged in   ____________ in an electrical circuit ?

a) Series

b) Parallel

c) Both

d) None

  a) Series

 

31. In houses, which type of connections are used ?

a) One Room  to another Series and Within room parallel connection 

b) One Room  to another Parallel and Within room series connection

c) One Room  to another Series and Within room also series connection

d) One Room  to another Parallel and Within room also parallel connection

   a) One Room to another Series and Within room parallel connection

 

32. Sea back effect is also called as ?

a) Resistance effect

b) Thermo electricity 

c) Both

d) None

   b) Thermo electricity

 

33.Two dissimilar metals wire are join together to form two junction, this arrangement is called as ?

a) Thermo couple

b) Thermo coupling 

c) Both

d) None

   a) Thermo couple

 

34. Which of the following metals are used for construction of Thermo couple ?

a) Iron and Copper

b) Antimony and Bismuth 

c) Antimony and Copper

d) None

  b) Antimony and Bismuth

 

35. Which of the following instruments works with principle of sea back effect ?

a) Thermopile

b) Thermomter

c) Ammeter

d) A and B

  d) A and B

 

36. Refrigerator and Air cooler work with principle of ?

a) Sea back effect

b) Peter’s effect

c) Thomson effect

d) None

 b) Peter’s effect

 

37. When current passes through the conductor then the temperature of entire length of conductor either increases or decreases, this is called as ?

a) Sea back effect

b) Peter effect

c) Joule/Thomson effect 

d) None

  c) Joule/Thomson effect

 

38. Mica sheet in iron box ?

a) Good conductor of Electricity and also heat

b) Good conductor of Electricity and bad conductor of heat

c) Good insulator of Electricity and good conductor of heat

d) None

   c) Good insulator of Electricity and good conductor of heat

 

39. Applications of Joule or Thomson effects ?

a) Electrical Heat

b) Electrical furnace

c) Ice plants

d) All the above

  d) All the above

 

40. Which of the following is used to measure temperature of Small insects upto 0.0025⁰C very accurately ?

a) Thermopile

b) Thermometer

c) Both

d) None

  b) Thermometer

 

41. Which of the following can be used to detect IR Rays ?

a) Thermopile 

b) Thermometer

c) Both

d) None

   a) Thermopile

 

42. Which of the following are semi conductor material ?

a) Gallium arsenide

b) Silicon

c) Germanium

d) All the above

   d) All the above

 

43. Series connection ?

a) Second end of 1st conductor is connected to First end of next conduction

b) First end of all conductor connected to one common point and another end connected to another point

c) Both 

d) None

   a) Second end of 1st conductor is connected to First end of next conduction

 

44. Parallel connection ?

a) Second end of 1st conductor is connected to First end of next conduction

b) First end of all conductor connected to one common point and another end connected to another point

c) Both 

d) None

 b) First end of all conductor connected to one common point and another end connected to another point

 

45. In Series connection/combination, Resistance ?

a) Increases, Current decreases

b) Decrease, Current Increase

c) Increase, Current Increase

d) None

  a) Increases, Current decreases

 

46. Parallel connection/combination, Resistance ?

a) Increases, Current decreases

b) Decrease, Current Increase

c) Increase, Current Increase

d) None

  b) Decrease, Current Increase

 

47. Current (I) is given as ?

a) I = V / R

b) I = R / V

c) I= V + R

d) None

Note: I = Current, V= voltage , R =Resistance 

  a) I = V / R

 

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