Tritium is Beta emitter. Its decay product is
A.hydrogen ion
B.deuterium
C.helium
D.lithium
Category: Nuclear Engineering Mcqs
The ultimate product of radioactive disintegration of uranium is
A.thorium
B.polonium
C.lead
D.radium
When combined in a nucleus the total mass of the protons and neutrons is less than the sum of their individual masses. This suggests that
A.the mass defect is due to electrons revolving round the nucleus
B.the mass defect accounts for the energy of the electrons revolving round the nucleus
C.the mass defect accounts for the binding energy holding the particles together in the nucleus
D.the experiments are not accurate enough
The concentration of ThO2 in Indian monazite sands is about
A.10-11 %
B.89-90%
C.70-71%
D.29-30%
The specific charge of a charged body in motion
A.increases
B.decreases
C.remains constant
D.increases for positively charged bodies and decreases for negatively charged bodies
To induce fusion the temperature of reacting substances must be raised to millions of degrees so that
A.the substance may burn more violently
B.the base nuclei may possess sufficient kinetic energy to overcome their mutual electrostatic repulsion and thus they may come in bodily contact with other nuclei
C.fusion of atoms may take place at a faster rate
D.thermoelectric effect may be increased
Atomic size is of the order of
A.10-12 cm
B.10-10 cm
C.10-8 cm
D.10-6 cm
An electrovalent compound is made up of
A.neutral atoms
B.electrically charged atoms or groups of atoms
C.electrically charged molecules
D.neutral molecules
Tritium is
A.radioactive deuterium
B.obtained by bombardment of 4Be9 particle
C.prepared by the electrolysis of water
D.prepared by the electrolysis of heavy water
The percentage of U-238 in all naturally occurring uranium is about
A.99.29%
B.0.71%
C.10%
D.99.99%
