Main source of ______________ is monazite sand?
Main source of ______________ is monazite sand?
A. Uranium
B. Polonium
C. Hafnium
D. Thorium
Nuclear Power Engineering
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Research reactors are normally meant for_____________________?
Research reactors are normally meant for_____________________?A. Producing high neutron flux 1012-1013 neutrons/cm2, sec and studying the effect of neutron
bombardment on different materials
B. Accelerating the neutrons
C. Power generation
D. None of these -
Artificially produced radioactive isotopes are used for____________________?
Artificially produced radioactive isotopes are used for____________________?A. Power generation
B. Treatment of certain diseases
C. Initiating nuclear fission and fusion
D. All A., B. and C. -
Which one is different for the neutral atoms of the isotopes of an element ?
Which one is different for the neutral atoms of the isotopes of an element ?A. Atomic weights
B. Atomic numbers
C. Number of protons
D. Number of electrons -
Uranium is recovered from its ore (pitchblende) by________________?
Uranium is recovered from its ore (pitchblende) by________________?A. Froth floatation technique
B. Leaching with sulphuric acid
C. Smelting in a furnace
D. Dissolving in water -
Which of the following is not an ore of uranium ?
Which of the following is not an ore of uranium ?A. Pitchblende
B. Kyanite
C. Carnotite
D. Rescolite -
“Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?
“Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?A. Sustainment of chain reaction
B. Power generation on commercial scale
C. Economic power generation
D. None of these -
When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as____________________?
When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as____________________?A. Isomers
B. Isotopes
C. Isobars
D. Isotones -
Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher _____________________?
Nuclear fuel generally used in reactors is uranium oxide instead of uranium, because the former has higher _____________________?A. Melting point, hence can be subjected to higher temperature
B. Density; hence core volume for a given power output would be smaller
C. Resistance to effects of irradiation
D. All A., B. and C. -
Radioactivity of an isotope is expressed in______________________?
Radioactivity of an isotope is expressed in______________________?A. Barn
B. MeV
C. Curie
D. Ergs