Fuel for a nuclear reactor (thermal) is Uranium None of these Plutonium Radium TRUE ANSWER : ? YOUR ANSWER : ?
The mass number of an element is not changed, when it emits __________ radiations. β & γ γ & α α, β, & γ α & β TRUE ANSWER : ? YOUR ANSWER : ?
In β-decay of radioactive material, the ratio of neutron to proton Increases Decreases Remains same Is unpredictable; may increase or decrease TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following may not need a moderator? Fast breeder reactor Candu reactor Homogeneous reactor Pressurised water reactor TRUE ANSWER : ? YOUR ANSWER : ?
Absorption/scattering cross-section of an element is expressed in "barn", which is equivalent to 10⁻¹² cm 1 Angstrom 10⁻²⁴ cm² 10⁻²⁴ cm TRUE ANSWER : ? YOUR ANSWER : ?
The main purpose of control rod in a nuclear reactor is to control the Conversion of fissile material into fertile material Emission of hazardous radiation Velocity of the secondary neutrons Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission TRUE ANSWER : ? YOUR ANSWER : ?
Which one is the radioactive isotope of hydrogen? Tritium Ortho-hydrogen Deuterium None of these TRUE ANSWER : ? YOUR ANSWER : ?
Energy equivlant to one atomic mass unit (amu) is __________ MeV. 9.31 9310 931 93.1 TRUE ANSWER : ? YOUR ANSWER : ?
Hydrogen differs from deuterium in __________ properties. Radioactive Chemical All of these Physical TRUE ANSWER : ? YOUR ANSWER : ?