General Science Quiz - Competitive Exams RRB

Free practice quiz: General Science (Competitive Exams RRB). 115 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which part of the human brain is responsible for maintaining balance and posture?

   1. Cerebellum
   2. Medulla oblongata
   3. Hypothalamus
   4. Cerebrum
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   Answer: A. Cerebellum

2. Which enzyme in saliva begins the digestion of starch?

   1. Amylase
   2. Trypsin
   3. Pepsin
   4. Lipase
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   Answer: A. Amylase

3. Which law states that energy can neither be created nor destroyed?

   1. Law of conservation of mass
   2. Ohm's law
   3. Law of conservation of energy
   4. Newton's first law
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   Answer: C. Law of conservation of energy

4. Which of the following gases is used in electric bulbs to prevent oxidation of the filament?

   1. Carbon dioxide
   2. Argon
   3. Hydrogen
   4. Oxygen
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   Answer: B. Argon

5. Which plant tissue is responsible for transporting water from roots to leaves?

   1. Xylem
   2. Epidermis
   3. Cambium
   4. Phloem
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   Answer: A. Xylem

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