Transistors used in electronic equipments are mostly made of

Q. Transistors used in electronic equipments are mostly made of
  1 Silver
  2 Copper
  3 Silicon
  4 Carbon
  Ans:3
Q. The disease diphtheria affects
  1 Lungs
  2 Intestine
  3 Throat
  4 Body joints
  Ans:3
Q. Which of the following is the brightest planet as seen from the earth?
  1 Mercury
  2 Uranus
  3 Venus
  4 Mars
  Ans:3
Q. The Harry Potter series is written by
  1 K K Rowling
  2 K J Rowling
  3 J K Rowling
  4 A K Rowling
  Ans:3
Q. The most common communicable disease is
  1 Influenza
  2 Typhoid
  3 Cholera
  4 Polio
  Ans:1
Q. Among the following, the richest source of protein is
  1 Ground Nut
  2 Rice
  3 Potato
  4 Apple
  Ans:1
Q. Taoism is a school of
  1 Chinese philosophy
  2 Japanese philosophy
  3 Buddhist philosophy
  4 Sri Lankan philosophy
  Ans:1
Q. Hydrogen is used instead of Helium to fill balloons for meteorology because
  1 of its low density
  2 It is not very reactive under normal conditions
  3 It is almost insoluble in water
  4 It can be prepared easily
  Ans:1
Q. The most abundant element in the earth's crust is
  1 Silicon
  2 Aluminium
  3 Nitrogen
  4 Oxygen
  Ans:4
Q. Stainless steel is an example of
  1 A metallic compound
  2 A homogeneous mixture
  3 A heterogeneous mixture
  4 An inorganic compound
  Ans:1