General Science

JKSSB Assistant Training Officer (Handicrafts & Handlooms) · General Awareness · 20 practice questions with answers and explanations: 13 Easy, 7 Medium, 0 Hard.

Sample questions

Sample Easy question 1

Which vitamin is produced in the skin by sunlight?

  1. Vitamin C
  2. Vitamin B12
  3. Vitamin D
  4. Vitamin A
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Answer: C. Sunlight helps the skin make vitamin D.

Sample Easy question 2

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 3

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 Medium question 4

Which blood group is the universal donor?

  1. A positive
  2. B positive
  3. O negative
  4. AB positive
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Answer: C. O negative can be given to anyone in an emergency.

Sample Medium question 5

Photosynthesis takes place mainly in the:

  1. Nucleus
  2. Vacuole
  3. Chloroplast
  4. Mitochondria
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Answer: C. Chlorophyll in chloroplasts traps sunlight.

Sample Medium question 6

The hardest natural substance is:

  1. Quartz
  2. Iron
  3. Diamond
  4. Graphite
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Answer: C. It is a form of carbon with a rigid lattice.

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