The rate of disintegration of a radioactive element
A.remains constant throughout
B.progressively increases
C.progressively decreases
D.may increase or decrease or remain constant
Category: Nuclear Engineering Mcqs
Select the only correct statement
A.Energy can be converted into matter but matter cannot be converted into energy
B.Matter can be converted into energy but energy cannot be converted into matter
C.Energy and matter both can be converted into each other
D.Neither energy can be converted into matter nor can matter be converted into energy
The nucleus is very dense and rigid because
A.nucleus is positively charged
B.nucleus is the centre of atom
C.?-rays are deflected by nucleus
D.almost whole of the mass is concentrated in nucleus
Binding energy of helium – 4 is 28.57 MeV. Its binding energy per nucleon is
A.19.24 MeV
B.7.14 MeV
C.4.75 MeV
D.57.14 MeV
An element zMA undergoes an ?-emission followed by two successive ?-emissions. The element formed is
A.zMA-3
B.zMA-4
C.zMA-2
D.zMA-6
The process in a nuclear reactor is
A.controlled nuclear fission
B.uncontrolled nuclear fission
C.controlled nuclear fusion
D.uncontrolled nuclear fusion
The first atomic power plant in India was built at
A.Narora
B.Kalapakkam
C.Tasapur
D.Kota
The mass number of an element is equal to
A.the number of protons in the nucleus
B.the number of neutrons in the nucleus
C.the number of protons and neutrons in the nucleus
D.the difference in the number of protons and neutrons in the nucleus
The atomic number of an element corresponds to
A.its atomic volume
B.the number of electrons in its atom
C.the number of neutrons in the nucleus of its atom
D.its atomic weight
Graphite is used in nuclear reactors
A.as a lubricant
B.as a fuel
C.for lining the inside of the reactor
D.for reducing the velocity of neutrons
