8th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Four

8th Standard

    Reg.No. :
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Science

Time : 00:20:00 Hrs
Total Marks : 20

    Part A

    20 x 1 = 20
  1. SI unit of temperature is

    (a)

    celsius

    (b)

    fahrenheit

    (c)

    kelvin

    (d)

    ampere

  2. The unit of charge is ______

    (a)

    Coulomb

    (b)

    Ampere

    (c)

    Radian

    (d)

    Steradian

  3. The unit of viscosity is

    (a)

    N m2

    (b)

    poise

    (c)

    kg m s–1

    (d)

    no unit

  4. Focal length is equal to half of the

    (a)

    centre of curvature

    (b)

    axis

    (c)

    radius of curvature

    (d)

    None of the above

  5. In which mirror the following statement is labeled?

    (a)

    Convex mirror

    (b)

    Concave mirror

    (c)

    Plane mirror

    (d)

    Spherical mirror

  6. Which one of metal possess low tensile strength?

    (a)

    Silver

    (b)

    Copper

    (c)

    Zinc

    (d)

    Aluminium

  7. In Haber’s process of producing ammonia ______ is used as a catalyst.

    (a)

    Nitrogen

    (b)

    hydrogen

    (c)

    iron

    (d)

    nickel

  8. The plant body of algae is called as ______.

    (a)

    stem

    (b)

    thallus

    (c)

    leaf

    (d)

    root

  9. Yeast reproduces by __________

    (a)

    Fragmentation

    (b)

    Budding

    (c)

    Sporulation

    (d)

    Sexual method

  10. The well-developed sporophytic plant body is seen in

    (a)

    Bryophytes

    (b)

    Pteridophytes

    (c)

    Gymnosperms

    (d)

    Angiosperms

  11. The process of air passing in and out the lungs is called ___________.

    (a)

    Inhalation

    (b)

    Exhalation

    (c)

    Breathing

    (d)

    None of these

  12. If you apply equal amount of heat to a solid, liquid and gas individually, which of the following will have more expansion?

    (a)

    Solid

    (b)

    Liquid

    (c)

    Gas

    (d)

    All of them

  13. Solvay process is a method to manufacture

    (a)

    lime water

    (b)

    aerated water

    (c)

    distilled water

    (d)

    sodium carbonate

  14. __________ joints are immovable.

    (a)

    Shoulder and arm

    (b)

    Knee and joint

    (c)

    Upper jaw and skull

    (d)

    Lower jaw and upper jaw

  15. ___________ are the chemical substances, secreted by endocrine glands.

    (a)

    Hormones

    (b)

    Enzymes

    (c)

    Proteins

    (d)

    Fatty acids

  16. Find the odd one out.

    (a)

    Harmonium

    (b)

    Flute

    (c)

    Nadaswaram

    (d)

    Violin

  17. Chandrayaan - 1 was launched on

    (a)

    22nd October 2008

    (b)

    8th November 2008

    (c)

    22nd July 2019

    (d)

    22nd October 2019

  18. Aqueous solutions of _________ conduct electricity.

    (a)

    acid

    (b)

    base

    (c)

    salt

    (d)

    salt and base

  19. __________ is the coal of superior quality.

    (a)

    Peat

    (b)

    Lignite

    (c)

    Bituminous

    (d)

    Anthracite

  20. If the ruler is not displayed in the screen, __________ option is clicked.

    (a)

    View -> ruler

    (b)

    View -> task

    (c)

    File -> save

    (d)

    Edit -> paste

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