Thermal nuclear reactors using enriched uranium as fuel contains a maximum of __________ percent fissile material i.e. U-235. 2 7 1 3 TRUE ANSWER : ? YOUR ANSWER : ?
The half life period of a radiactive element is 100 days. After 400 days, one gm of the element will be reduced to __________ gm. 43838 43834 43846 43832 TRUE ANSWER : ? YOUR ANSWER : ?
Isotopes of an element have the same Atomic weight Electronic configuration Number of neutrons Mass number TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of atomic radius to its nuclear radius is about 10¹⁵ 10¹² 10⁵ 10⁸ TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a non-fissile material? Thorium⁻²32 Uranium⁻²33 Plutonium⁻²39 Uranium⁻²35 TRUE ANSWER : ? YOUR ANSWER : ?
The function of moderators in nuclear reactor is to None of these Slow down the secondary neutrons Absorb the secondary neutrons Control the chain reaction TRUE ANSWER : ? YOUR ANSWER : ?
Fast breeder test reactor at Kalpakkam is designed for using Thorium as a fertile material Helium as a coolant Uranium ore directly as a fuel U-238 as a fertile material TRUE ANSWER : ? YOUR ANSWER : ?
Thorium⁻²32 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material. Uranium⁻²33 Plutonium⁻²39 Thorium⁻²33 Uranium⁻²35 TRUE ANSWER : ? YOUR ANSWER : ?
Heat is generated in a nuclear reactor (thermal) by Fusion of atoms of uranium Combustion of a nuclear fuel e.g. uranium Absorption of neutrons in uranium atoms Fission of U-235 by neutrons TRUE ANSWER : ? YOUR ANSWER : ?