Nuclear Power Engineering Questions

• The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.
• An electron has a mass that is approximately __________ that of the proton.
• The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years.
• Final product of uranium extraction plant at Jadugoda (Bihar) is
• Ordinary water is not used as a moderator because, it
• A boiling water reactor is the one, in which the
• The largest stable nucleus is
• Which is the most commonly used molten metal for cooling of nuclear reactors?
• The decay product of tritium (a beta emitter) is
• Which of the following may be used to measure the rate of nuclear disintegration?
• "Critical mass" is the minimum mass of nuclear fissile material required for the
• A nuclear reactor can't be used for
• A homogeneous reactor is the one, in which the
• Hydrogen bomb employs the nuclear fusion of
• Hydrogen has __________ isotopes.
• Fast breeder Test Reactor (FBTR) is located at
• Sodium melts (at atmospheric pressure) at a temperature of __________ °C.
• Moderating material used in a thermal-reactor should be a
• Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec.
• The mass number of an element is not changed, when it emits __________ radiations.