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Science - TNPSC Previous Year Questions

1. The Principle of fuse wire is

  • (a) Oersted Experiment
  • (b) Amphere’s Law
  • (c) Ohm’s Law
  • (d) Jule’s thermal Law

2. Choose the correct statement

  • 1.Mass of the body is the total matter content of the body
  • The unit of mass is Newton.
  • (a) 1 Only
  • (b) 2 Only
  • (c) Both
  • (d) None

3. Consider the following statements

  • 1) It protects Biological specimens
  • 2) It helps in curing wounds
  • 3) It prevents freezing of water in coolants of motor vehicles.
  • Above statements is about
  • (a) Methonal
  • (b) Acidic acid
  • (c) Formic acid
  • (d) Ethanol

4. Which one of the following is carbonate ore?

  • (a) Bauxite
  • (b) Galena
  • (c) Marble
  • (d) Hematite

5. Choose the Wrongly matched

  • 1) Basic soil - Citrus fruit
  • 2) Acidic soil - Paddy
  • 3) Basic soil - Paddy
  • 4) Acidic soil - Citrus fruit
  • (a) 1 and 3
  • (b) 2 and 4
  • (c) 1 and 2
  • (d) 3 and 4

6. Choose the correct statement

  • 1) In Hydrocarbons, alkines having carbon-carbon triple bonds
  • 2)2) General name of Ethaine is Acetylene
  • (a) 1 Only
  • (b) 2 Only
  • (c) Both
  • (d) None

7. Choose the wrongly matched

  • a. Tartaric acid - Grapes
  • b. Oxalic acid - Tomato
  • c. Acetic acid - Curd
  • d. Malic acid - Apple
  • (a) 2 1 4 3
  • (b) 1 2 3 4
  • (c) 1 2 4 3
  • (d) 2 1 3 4

8.In Flemings Left Hand Rule, index finger indicates

  • (a) Electricity
  • (b) Conductors force
  • (c) Magnetism
  • (d) Neither

9. Electro Magnetic Induction was invented by

  • (a) Fleming
  • (b) Volta
  • (c) Ampere
  • (d) Faraday

10. Which type of cooling system is required for Bio-tech medicines?

  • (a) Hydrogen
  • (b) Oxygen
  • (c) Pharmalyn
  • (d) Nitrogen

11. Choose the correct statement
1) Hydrochloric acid is chemically more reactive than Acidic acid
2) Acedic acid is an organic acid

  • (a) 1 Only
  • (b) 2 Only
  • (c) Both
  • (d) None

12. In Ocean Thermal Energy Conversion Plants, the vapour of which gas is used to run the turbine

  • (a) Water
  • (b) ethanol
  • (c) ammonia
  • (d) benzene

13. Light enters into the eye through

  • (a) Cornea
  • (b) Retina
  • (c) Iris
  • (d) none of these

14. One kilowatt is equal to

  • (a) 10 watt
  • (b) 100 watt
  • (c) 1000 watt
  • (d) 10,000 watt

15. Which of the following do not affects the radio activity?
1) Temperature
2) Pressure
3) Electric and Magnetic fields

  • (a) 1 Only
  • (b) 2 Only
  • (c) 3 Only
  • (d) Both

16.Which of the following acid is used to preserve food?

  • (a) Tartaric acid
  • (b) Carbonic acid
  • (c) Benzonic acid
  • (d) Sulphuric cid

17. Match it

  • A) Washing soda 1. Na2 CO3
  • B) Baking soda 2. NaHCO3
  • C)Bleaching powder 3. CaOCl2
  • D) Plaster of Paris 4. CaSO4 ½ H2O
  • (a) 2 1 4 3
  • (b) 1 2 3 4
  • (c) 1 2 4 3
  • (d) 2 1 3 4

18. Choose the wrong statement
1) Vitamin B-12 contains mineral Cobalt
2) Metal present in Chloroplast of green plant is Chromium.

  • (a) 1 Only
  • (b) 2 Only
  • (c) Both
  • (d) None

19. Which of the acid forms in the test of alcohols?

  • (a) acetic acid
  • (b) Ethanoic acid
  • (c) Pharmic acid
  • (d) Puetaric acid

20. Almage is a

  • (a) Space Shuttle
  • (b) Space Station
  • (c) Telescope
  • (d) Rocket

Key

Q.No Answer
1 d
2 a
3 d
4 c
5 c
6 c
7 c
8 c
9 d
10 d
11 c
12 c
13 a
14 c
15 d
16 c
17 b
18 b
19 b
20 b

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