Nuclear Safety 3

Which reactors have water as a coolant and moderator?

• PWR

• BWR

• RBMK

• FNR

What coolant and moderator does an AGR have?

• Water and graphite

• CO2 and graphite

• He and graphite

• Water for both

Which safety feature does a PWR have that a BWR doesn't?

• A secondary cooling loop

• Water as a moderator

• Increasing steam production

• Chemical shim

What is the purpose of the containment building?

• To prevent release of radioactive gases

• To contain fuel in the event of a meltdown

• To protect the reactor pressure vessel from external hazards

• To house the turbines

Which materials are control rods made from?

• cadmium

• hafnium

• boron

• gadolinium

Which reactor design is inherently unsafe?

• RBMK

• CANDU

• Magnox

• AGR

How long does Generic Design Assessment take?

• Up to 1 year

• Up to 4 years

• Up to 8 years

• Up to 10 years

Which generation(s) of reactors are we on currently?

• 1

• 2

• 3

• 4

Which coolants will new generation FNRs use?

• Pb/Pb-Bi

• Na/NaK

• Cl/F salts

• He

Which statements are true about FNRs?

• They will close the fuel cycle by burning up spent fuel

• They can be shut down and restarted as often as needed

• They are cheap to build

• They do not require a moderator