Q. The half life period of a radioactive element depends on its

View solution

Q. __________ have the same mass number, but different nuclear charge.

View solution

Q. Which one is radioactive in nature ?

View solution

Q. Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to

View solution

Q. The most commonly used nuclear fuel in boiling water reactor is

View solution

Q. Thermal neutrons which are used to cause the fission of U-235 have energy __________ eV.

View solution

Q. Which of the following types of nuclear reactors is most prone to radioactive hazards ?

View solution

Q. Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235.

View solution

Q. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?

View solution

Q. Which of the following is not used as a nuclear fuel cladding material ?

View solution

Q. The function of moderators in nuclear reactor is to

View solution

Q. Specific gravity of uranium and plutonium is about

View solution

Q. Pick out the wrong statement.

View solution

Q. If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same istotope will be __________ days.

View solution

Q. __________ nuclear reactor does not require a heat exchanger to supply steam to power turbine.

View solution

Q. Nuclides having the same atomic numbers are termed as

View solution

Q. The number of neutrons accompanying the formation of ₅₄Xe¹³⁹ and ₃₈Sr⁹⁴ from the absorption of a slow neutron by ₉₂U²³⁵ , followed by nuclear fission is

View solution

Q. A fertile material is the one, which can be

View solution

Q. Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material).

View solution

Q. Thorium metal

View solution