CSIR NET JRF Paper-I (Part 4 of 5)

  • One joule is equivalent to-10 ergs
  • The most efficient engine is-Electric
  • Wisdom teeth normally grow during the age of-17 − 30 years
  • The yellow colures of urine is due to the presence of-Urochrome.
  • Life of RVC in human blood is of-120 days.
  • How many teeth are known as milk teeth in human beings-20.
  • Colure of the skin due to presence of-Melanin
  • Bile juice secreted by-Lactro meter
  • The smallest cell in the human body are-Blood cells.
  • Food is mainly digested in-small intestine.
  • The number of ribs in human body is-24
  • The smallest bone in the human body is-Stirrup
  • Total number of bones in human skill are-30
  • The hitting element in an electric iron is made of-Tungsten.
  • A nuclear reactor uses as fuel-Uranium.
  • The Velocity of light was first measured by-Roemer.
  • The purity of milk is checked by-Lactro meter.
  • The hottest part of the flame lies in its-Non luminous Zone.
  • The first life came on this earth-In Water
  • An object weights maximum in-Vacuum
  • Which is the semiconductor-Silicon
  • Ic Chips for Computers are usually made of-Silicon
  • A device used for converting AC into DC is
  • called-Rectifier.
  • The volume Urine produced in an adult human every 24 hours is-1.5Liters.
  • The average Gestation period of Sheep is-150 days.
  • The Smallest possible unit of a comical compounds is-Molecule
  • The Vitamin which contains Cobalt is-B12
  • The first metal to used by man was Copper
  • All acid essentially contain the element-Hydrogen
  • The main active continent of tea and coffee is-Caffeine.
  • Pencil lead is made up of-Graphite.
  • The human body contains the maximum amount of-water.
  • A man standing at the finish line is recording the time of a race competition by means of a stop watch. He must start the watch when-He sees flash of light coming from starting gun
  • If a shell from a canon bursts in the air, the total kinetic energy-increase
  • The pitch of sound is measured by its-frequency
  • Alternating current is converted to direct current by a-rectifier
  • When iron and wood are exposed to sunlight, the iron rod become hot quickly because of-the greater thermal conductivity of iron