Sets
General Science Set 34
30 questions 1. Consider the following statements:
(I) Ventricles have thicker muscular walls than atria.
(II) Valves ensure that blood does not flow backwards when the atria or ventricles contract.
(III) The left atrium is a thin-walled upper chamber of the heart.
Which of the above is/are correct?
2. In 1934, K. R. Ramanathan measured ozone levels in the Himalayas at an altitude of:
3. Rhizobium bacteria trap which gas from the air and make it useful for plants?
4. The reaction of an ester with sodium hydroxide to give an alcohol and the sodium salt of a carboxylic acid is called:
5. A combination of two simple harmonic motions with arbitrary amplitudes and phases is periodic only if:
6. The entire distance travelled by a food item from the producer to the consumer is called:
7. The reaction of methane with chlorine takes place rapidly in the presence of:
8. The laws of reflection are valid for which of the following mirrors?
9. If the water temperature of a bacterial population living in temperate waters rises due to global warming, the survivors would most likely be:
10. A grain of potassium permanganate spreads the fastest in:
11. When a bar magnet is placed over iron filings, the maximum number of filings stick near its:
12. Pakke Tiger Reserve is located in:
13. The oil drop experiment devised by R. A. Millikan was used to determine the:
14. Consider the following pairs:
(I) Punjab – Sarson da saag
(II) Karnataka – Idli
(III) Manipur – Chhole bhature
Which of the pairs given above is/are correctly matched?
15. The formula unit mass of magnesium nitrate, Mg(NO₃)₂ (Mg = 24 u, N = 14 u, O = 16 u), is:
16. The force acting on a particle in SHM is:
17. Consider the following statements about non-communicable diseases:
(I) They are not caused by pathogens.
(II) They do not spread from one person to another.
(III) Typhoid is an example.
Which of the above is/are correct?
18. Consider the following statements:
(I) Below the boiling point, vapour formation occurs only at the surface.
(II) Evaporation takes place only at the boiling point.
(III) Evaporation is a slower process than boiling.
Which of the above is/are correct?
19. A person who can see distant objects clearly but cannot see nearby objects distinctly suffers from:
20. Dengue fever is also known as: