General science question and answer..
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1. What is the "Optical Phenomenon" in the fringe pattern of CD ?
Ans : Interference.
2. In which digree Celsius and Fahrenheit show the same temperature ?
Ans : 40
3. What is Exchange particle in Quark-Quark Interaction?
Ans : Gluon
4. In which principle the working of a rockets based on ?
Ans : Conservation of momentum
5.The pollutants which move downward with percolating groundwater are called
Ans : Leachates
6.Hasdo Valley in Chhattisgarh is famous for
Ans : Coal mines
7. Special Theory of Relative was proposed in
Ans : 1905
8.Black hole is an object to be found
Ans : in the sky
9.IRADIAN is
Ans : 57.3 degree
10.Fraction of volume of ice seen outside when immersed in water?
Ans : 10.5%
11. The disease " bronchitis " is associated with:
Ans : Lungs
12. Which colour indicate Highest Temperature?
Ans : Dull red
13. Persons sitting in an artificial satellite of the earth have :
Ans : Zero weight
14. Light Year is
Ans : the distance traveled by light in one year
15. Liquefied petroleum gas (LPG) is mainly a mixture of
Ans : propane and butane
16.The Ozone layer lies in the
Ans : Stratosphere
17. Most of the light rays inside a tube-light is in the form of
Ans : ultra -violet light
18. Which is the alkalodid that contains in cola drinks?
Ans : Caffeine
19. The device used for detecting even feeble current:
Ans : Galvanoscope
20. Anemometer is an instrument used for measuring ?
Ans: Wind speed
21. Which of the following is the lightest metal ?
(A) Mercury
(B) Silver
(C) Lithium
(D) Lead
Ans : (C) Lithium
22. The most important ore of Aluminium is —
Ans : Bauxite
23. The element present in the largest amount in rocks and minerals is —
Ans : Silicon
24. An alloy used in making heating elements for electric heating devices is —
Ans : Nichrome
25. German Silver is an alloy of —
Ans : Zinc, Copper & Nickel
26. Air is a/an —
Ans : Compound
27. Which of the following is the best conductor of Electricity ?
(A) Ordinary water
(B) Sea water
(C) Boiled water
(D) Distilled water
Ans : (B) Sea water
28. Balloons are filled with —
Ans : Helium
29. The charcoal used to decolourise raw sugar is —
Ans : Wood charcoal
30. The most abundant metal in the earth’s crust is —
Ans : Aluminium
31. The gas used to extinguish fire is —
Ans : Carbon dioxide
32. In which of the following activities Silicon Carbide is used ?
(A) Making cement and glass
(B) Disinfecting water and ponds
(C) Making castes for statues
(D) Cutting very hard substances
Ans : (D) Cutting very hard substances
33. The element common to all acids is —
Ans : Hydrogen
34. Gobar gas contains mainly —
Ans : Methane
35. The most malleable metal is —
Ans : Gold
36. Tetraethyl lead is used as —
Ans : Petrol additive
37. Which of the following is used in beauty parlours for hair setting ?
(A) Phosphorus
(B) Sulphur
(C) Chlorine
(D) Silicon
Ans : (B) Sulphur
38. Which of the following is a non-metal that remains liquid in room temperature ?
(A) Bromine
(B) Chlorine
(C) Helium
(D) Phosphorus
Ans : (A) Bromine
39. From which mineral is radium obtained —
Ans : Pitchblende
40. What is laughing gas ?
Ans : Nitrous oxide
41. Which of the following is used as a material for making protective windows in space probes ?
(A) Steel
(B) Graphite
(C) Tungsten
(D) Diamond
Ans : (D) Diamond
42. Which form of mphosphorus is used in safety metals ?
Ans : Red Phosphorus
43. Stainless steel is an alloy of —
Ans : Iron, Chromium and Nickel
44. Which of the following is not correctly matched ?
(A) Galena : Lead Sulphide
(B) Green vitriol : Copper sulphate
(C) Plaster of Paris : Calcium
sulphate
(D) Calomel : Mercurous Chloride
Ans : Green vitriol : Copper Sulphate
45. Which of the following metals forms an amalgum with other metals ?
(A) Lead
(B) Tin
(C) Zinc
(D) Mercury
Ans : (D) Mercury
