Science GK Practice Question and Answer

Q:

Potato canker has black canker and black pan / colloid factor?

1203 0

  • 1
    two fungi
    Correct
    Wrong
  • 2
    A fungus and a bacterium
    Correct
    Wrong
  • 3
    a fungus
    Correct
    Wrong
  • 4
    A fungus and a virus
    Correct
    Wrong
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Answer : 3. "a fungus"

Q:

When a metal is heated, its density?

1198 0

  • 1
    increases
    Correct
    Wrong
  • 2
    There is no difference
    Correct
    Wrong
  • 3
    decreases
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "decreases"

Q:

Mac number is related

1196 0

  • 1
    At the speed of sound
    Correct
    Wrong
  • 2
    At the speed of the ship
    Correct
    Wrong
  • 3
    At the speed of the plane
    Correct
    Wrong
  • 4
    At the speed of the spacecraft
    Correct
    Wrong
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Answer : 3. "At the speed of the plane"

Q:

Who invented television?

1195 0

  • 1
    J.R. L. Baird
    Correct
    Wrong
  • 2
    Macmillan
    Correct
    Wrong
  • 3
    James Watt
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "J.R. L. Baird"

Q:

Which of the following protocols is not correctly related to its issue?

1189 0

  • 1
    1987 Montreal Protocol - Ozone Depleting Substances
    Correct
    Wrong
  • 2
    1979 Bone Conference - Conservation of Migratory Species
    Correct
    Wrong
  • 3
    1989 Basel Convention - Regulation of transboundary movement, transit, handling and use of living modified organisms
    Correct
    Wrong
  • 4
    1998 Rotterdam Conference - Consent in the international trade of some hazardous chemicals and pesticides
    Correct
    Wrong
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Answer : 3. "1989 Basel Convention - Regulation of transboundary movement, transit, handling and use of living modified organisms"

Q:

Hypo which is used in photography, chemically called?

1183 0

  • 1
    Silver Bromide
    Correct
    Wrong
  • 2
    sodium thio sulfate
    Correct
    Wrong
  • 3
    sodium phosphate
    Correct
    Wrong
  • 4
    sodium nitrate
    Correct
    Wrong
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Answer : 2. "sodium thio sulfate"

Q:

Electricity is generated when the drivers rotate between the magnetic fields?

1172 0

  • 1
    Moving
    Correct
    Wrong
  • 2
    stable
    Correct
    Wrong
  • 3
    Both static and dynamic
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 1. "Moving"
Explanation :

In a generator, a rotating magnetic field is used to produce electrical energy. When a conductor, such as a wire, moves through a magnetic field, a voltage is induced across the conductor. This is known as electromagnetic induction, and it is the fundamental principle behind how generators work.

Q:

What do players use for instant power?

1159 0

  • 1
    Sucrose
    Correct
    Wrong
  • 2
    Vitamin C
    Correct
    Wrong
  • 3
    salt
    Correct
    Wrong
  • 4
    Milk
    Correct
    Wrong
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Answer : 1. "Sucrose"

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