Which of the following is a fertile fuel?
A.Th-232
B.Pu-241
C.U-233
D.U-235
Category: Nuclear Engineering Mcqs
If the half-life period of a radioactive metal 1 month then
A.the metal will have completely disintegrated in two months
B.7/8th of the metal will have disintegrated at the end of 3 months
C.1/8th of the metal will remain intact at the end of 4 months
D.the metal will have completely disintegrated in 4 months
If 92U238 emits one alpha particle the remaining nucleus will contain
A.234N + 90P
B.236N + 88P
C.144N + 90P
D.145N + 93P
The force holding the particles inside a nucleus is
A.an electrostatic force
B.a gravitational force
C.an exchange force
D.a magnetic force
The atomic weight of elements are usually fractional because
A.these are mixtures of allotropes
B.these are mixtures of isotopes
C.these are mixtures of isobars
D.element always contains some impurities
The half-life period may be best determined by
A.nothing the weight loss over a period of time
B.measuring the volume of helium liberated
C.by counting the number of alpha particles emitted per second in a Geiger Muller Counter from a known amount
D.Calculations based upon the chemical equation for the radioactive disintegration
Select the false statement
A.A definite fraction of a radioactive substance disintegrates in a definite time
B.The half-life time is independent of initial concentration of substance
C.Radioactive disintegration constant is independent of temperature
D.If the half-life time is 1580 years the complete disintegration will take place in 3160 years.
The large energy released in atomic bomb explosion is due to
A.release of neutrons
B.conversion of heavy atoms to lighter atoms
C.appreciable mass loss
D.higher mass of products than initial substance
