General Science

Ladakh Police Sub-Inspector · General Awareness & Science · 34 practice questions with answers and explanations: 22 Easy, 12 Medium, 0 Hard.

Sample questions

Sample Easy question 1

The speed of light in a vacuum is about:

  1. 3 × 10⁶ m/s
  2. 3 × 10⁸ m/s
  3. 3 × 10⁵ m/s
  4. 3 × 10¹⁰ m/s
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Answer: B. That is about 300,000 km per second.

Sample Easy question 2

Water is made of hydrogen and oxygen in the ratio of:

  1. 1 : 1
  2. 1 : 2
  3. 3 : 1
  4. 2 : 1 by atoms
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Answer: D. The formula H₂O has two hydrogen atoms and one oxygen atom.

Sample Easy question 3

The pH of an acid is:

  1. Less than 7
  2. Equal to 7
  3. More than 7
  4. Always 14
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Answer: A. Bases are above 7.

Sample Medium question 4

The process by which plants prepare their own food using sunlight is called?

  1. Respiration
  2. Photosynthesis
  3. Digestion
  4. Transpiration
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Answer: B. Photosynthesis is the process by which plants make food using sunlight.

Sample Medium question 5

What is the SI unit of force?

  1. Newton
  2. Pascal
  3. Watt
  4. Joule
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Answer: A. Force is measured in newtons (N) in the International System of Units.

Sample Medium question 6

Which blood group is known as the universal donor?

  1. AB-positive
  2. O-negative
  3. A-positive
  4. B-negative
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Answer: B. O-negative blood lacks A, B and Rh antigens, making it safe for transfusion to most blood types.

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