1. plates
2. pallets
3. pins
4. any one of the above
any one of the above
1. does not absorb neutrons
2. absorbs neutrons
3. accelerates neutrons
4. eats up neutrons
does not absorb neutrons
1. slowing down fast neutrons so that Uz fission continues by slow motion neutrons
2. accelerating fast neutrons
3. absorbing all neutrons
4. using moderator
slowing down fast neutrons so that Uz fission continues by slow motion neutrons
1. fast moving
2. slow moving
3. critical neutrons
4. neutrons at rest
slow moving
1. light weight atoms
2. heavy weight atoms
3. critical atoms
4. zero weight atoms
light weight atoms
1. kinetic energy of neutrons
2. kinetic energy of fission products
3. instantaneous release of gamma rays
4. gradual radioactive decay of fission products
kinetic energy of fission products
1. alpha particles
2. beta particles
3. thermal neutrons
4. fast neutrons and gamma rays
fast neutrons and gamma rays
1. the original elements change into completely different elements
2. the electrons of the element change
3. the molecules rearrange themselves to form other molecules
4. none of the above.
the original elements change into completely different elements
1. greater than 1.0
2. less than 1.0
3. equal to zero
4. equal to 1.0
equal to 1.0
1. 1 neutron
2. 3 neutrons
3. 1-2 neutrons
4. 2 neutrons
2 neutrons