General Science Gk Questions

DIRECTIONS : Objective Question on General Science.
31. Armature of Dynamo is made with
  A.  Iron material
  B.  Ferro magnetic material
  C.  Porcelain material
  D.  Cu–material
32. Insects form the largest class of animals living on land and sea.
  A.  22 orders
  B.  26 orders
  C.  29 orders
  D.  32 orders
33. Of the metals which, one pollutes the air of a big city?
  A.  Copper
  B.  Lead
  C.  Cadmium
  D.  Chromium
34. Which of the following is not an isotope of hydrogen?
  A.  Tritium
  B.  Yttrium
  C.  Protium
  D.  Deuterium
35. Which of the following metals remains in liquid form under normal conditions?
  A.  Mercury
  B.  Radium
  C.  Uranium
  D.  Zinc
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