QUESTIONS: 1. How does a nuclear power plant generate elictricity? 2. Name the steps in the nuclear fuel cycle? 3. What is a rem? 4. What is a nuclear chain reaction? 5. How are rising enerrgy costs affecting the nuclear power industry? 6. What happened at Chemobyl, and why did happen? 7. Describle a boiling-water reactor, and explain how it works. 8. How is plutonium-239 producedd in a breeder reactor? 9. Why is plutoium-239 considered dangerous? 10. Why is fusion not being used as a source of energy? 11. What are the major enviromental problems associated with the use of nuclear power? 12. List three enviromrntal problems associated with the constuction and subsequent de-emphasis o nuclear weapons.

1. Group 12:
1. PHAI MINEA [Leader: 0966153104] (ID: 2119055)
2. LAO SOKKEANG [0966973633] (ID: 2119639)
3. OL KIMMEY [098661176] (ID: 2120522)
4. RITH CHHAINGIM [0969071860] (ID: 2121245)

2. REVIEW QEUSTIONS
QUESTIONS:
1. How does a nuclear power plant generate elictricity?
2. Name the steps in the nuclear fuel cycle?
3. What is a rem?
4. What is a nuclear chain reaction?
5. How are rising enerrgy costs affecting the nuclear power industry?
6. What happened at Chemobyl, and why did happen?
7. Describle a boiling-water reactor, and explain how it works.
8. How is plutonium-239 producedd in a breeder reactor?
9. Why is plutoium-239 considered dangerous?
10. Why is fusion not being used as a source of energy?
11. What are the major enviromental problems associated with the use of nuclear power?
12. List three enviromrntal problems associated with the constuction and subsequent de-
emphasis o nuclear weapons.

3. ANSWERS
1. How does a nuclear power plant generate elictricity?
Answer 1:
Nuclear reactors are the heart of a nuclear power plant. They contain and control
nuclear chain reactions that produce heat through a physical process called fission.
That heat is used to make steam that spins a turbine to create electricity.
2. Name the steps in the nuclear fuel cycle?
Answer 2:
The nuclear fuel cycle consists of several steps: mining, milling, conversion,
enrichment, fuel fabrication and electricity generation. The front end of the nuclear fuel
cycle produces nuclear fuel for electricity generation.
3. What is a rem?
Answer 3:
Rem is a unit of effective absorbed dose of ionizing radiation in human tissue,
loosely equivalent to one roentgen of X-rays.
4. What is a nuclear chain reaction?
Answer 4:
Nuclear Chain Reactions. -it is when absorption of a neutron causes nucleus to
break apart. ~lots of energy released. ~released neutrons can then be absorbed by
other nuclei. -exponential growth is a result, causing a chain reaction.
5. How are rising energy costs affecting the nuclear power industry?
Answer 5:
If carbon pricing is factored in, it drops even lower, making nuclear an economical
long-term choice. Once the infrastructure is built, operating costs are low for this non-
renewable resource, in large part because exponentially less fuel is needed than coal
or gas to generate comparable wattage.
6. What happened at Chemobyl, and why did happen?
Answer 6:

4. Chernobyl happened to be the site of the world’s largest nuclear power plant
accident. Because the power output of the reactor rose beyond its normal level and
continued to rise.
7. Describle a boiling-water reactor, and explain how it works.
Answer 7:
A boiling water reactor function as both a moderator and a reactor-core coolant
steam is formed within the reactor and transfened directly to the efurbine, which turns
to generate electricity.
8. How is plutonium-239 producedd in a breeder reactor?
Answer 8:
Plutonium-239 is produced when a fast-moving neutron hits a nonfissionable
uranium-239(U-238) nucleus and is absorbed.
9. Why is plutoium-239 considered dangerous?
Answer 9:
The reason why plutonium-239 considerd dangerous because they can use to
produce nuclear weapons, they are politicaly sensitive.
10. Why is fusion not being used as a source of energy?
Answer 10:
The reason why fusion not being used as a source of energy because technicaly it
is imposible to create conditions thatbwould allow fusion to provide a reliable source
of energy in the foreseeable future.
11. What are the major enviromental problems associated with the use of nuclear power?
Answer 11:
The major enviromental problems associated with the use of nuclear power are
disposal of nuclear weapons, radioactive waste disposal, thermal pollution, and
decommissioning.
12. List three enviromrntal problems associated with the constuction and subsequent de-
emphasis o nuclear weapons.
Answer 12:
Three enviromrntal problems associated with the constuction and subsequent de-
emphasis o nuclear weapons are worker and public exposure to radiation,
contamination from nuclear research and waepons production, and disposal of nuclear
weapons.