Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is_______________? A. 3 B. 235 C. 200 D. 92
The decrease in the atomic number is not observed in case of________________? A. Electron captureB. β-emission C. α-emission D. Positron emission
The main purpose of control rod in a nuclear reactor is to control the___________________? A. Chain reaction and hence the power output by regulating the number of secondary neutrons causing fission B. Emission of hazardous radiation C. Conversion of fissile…
Radioactive decay of a material involves a _____________ order reaction? A. Third B. SecondC. First D. Zero
Out of the following places, a nuclear power plant is not located at______________? A. Talcher (Orissa) B. Kaiga (Karnataka) C. Rawatbhata (Rajasthan) D. Kalpakkam (Tamilnadu)
Unit of radioactivity is_________________? A. Barn B. Fermi C. AngstromD. Curie
Liquid metal (e.g., molten sodium) is preferred as a coolant in case of a/an ______________ reactor? A. Homogeneous B. Graphite moderatedC. Fast breeder D. Enriched uranium (3% U-235) fuelled
The half life period of a radioactive substance is best determined by counting the number of alpha particles emitted per second in a Geiger Muller counter from its known quantity. If the half life period of a radioactive substance is…
A heterogeneous reactor is the one, in which the moderator and the________________? A. Coolant are different materials B. Coolant are present in different phases (e.g., heavy water and graphite)C. Fuel are present in different phases (e.g. uranium and heavy water)…
Fuel for a nuclear reactor (thermal) is___________________? A. Uranium B. Plutonium C. Radium D. None of these