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Q.1
Used to slow neutrons to speeds at which they are more efficient in causing fission.
steam
U238
moderator
Q.2
A collection of tubes containing uranium fuel pellets.
fuel assembly
fuel bundle
Both a & b
Q.3
Sealed tubes of stainless steel or zirconium alloy that contain uranium fuel.
fuel rods
fuel assemblies
Both a & b
Q.4
An enriched water mixture that contains mostly deuterium oxide.
graphite
heavy water
light water
Q.5
Composed of 3-5% U235.
low-enriched uranium (LEU)
highly enriched uranium (HEU)
natural uranium (U)
Q.6
Slow neutron.
neutrino
thermal neutron
isotope
Q.7
The capture of a particle, as a neutron, by a nucleus, inducing the emission of electromagnetic radiation, as a gamma ray.
neutron capture
fission
radiative capture
Q.8
A hypothetical area measure used to express the likelihood of interaction between particles.
probability of interaction
cross-section
Both a & b
Q.9
The use of this in a reactor increases the probability of Pu239 production.
HEU
LEU
natural uranium
Q.10
Ceramic nuclear fuel pellets with a high density that are stacked and filled into the metallic tubes are made of this.
Uranium dioxide (UO2)
Tritium (3H)
Deuterium (2H)
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