WorksheetsNuclear Engineering Principles 7
Total questions: 10
Worksheet time: 8mins
Match the reactor to its moderator and coolant...
RBMK
Graphite moderator, water coolant
FNR
No moderator, liquid metal coolant
PWR
Water moderator and coolant
PHWR/CANDU
Heavy water moderator and coolant
AGR Graphite
Graphite moderator, CO2 coolant
Match the reactor to its fuel type...
RBMK/AGR
Low enriched UO2 (2-3%)
PWR
Enriched UO2 (4-5%)
PHWR/CANDU
Natural unenriched U
FBR
Pu or mixed fuels
HTR
Enriched U-235 to <20%
What is the purpose of a moderator?
To slow down fast neutrons
To speed up thermal neutrons
To act as a safety mechanism
To absorb neutrons
What is the purpose of the containment building (select all that apply)?
To prevent radioactivity release in an accident
To protect the reactor from terrorist attacks
To protect the reactor from natural disasters
To provide shielding to site workers
Which of these is not a good material for control rods?
Boron
Cadmium
Hafnium
Steel
How many coolant circuits does a PWR have?
1
2
3
4
Which of these is NOT true about Small Modular Reactors (SMRs)?
They have enhanced safety features
They are more expensive to build
They can be decommissioned in situ
They will use HALEU fuel
Which type of reactors will help to close the fuel cycle (burn up spent fuel)?
FNRs
PWRs
AGRs
HTRs
Which generation(s) of reactor are currently in operation?
I
II
III
IV
Which statements are true about Fast Neutron Reactors (FNRs)?
They cannot be restarted when shut down if using liquid metal coolants
They can use molten salts as coolants
They are expensive to build
They can use a range of fuels
