342 POWER PLANT ENGINEERING
June 1985 Balakovsky PWR power station, Valve burst, release of 300 degree C. steam, cooked
14 workmen. Safety regulations viewed as guidelines, chief engineer regularly made exceptions.
EXERCISES
1.What is a chain reaction? How it is controlled?
2.What is a nuclear reactor? Describe the various parts of a nuclear reactor.
3.What are different types of reactors commonly used in nuclear power stations? Describe the
fast breeder reactor?
4.Discuss the various factors to be considered while selecting the site for nuclear power station.
Discuss its advantages and disadvantages.
5.Write short notes on the following:
(a) Boiling water reactor (B.W.R.)
(b) Pressurised water reactor (P.W.R.)
(c) Multiplication factor.
(d) Fertile and fissionable material.
6.What are the different components of a nuclear power plant? Explain the working of a
nuclear power plant. What are the different fuels used in such a power plant?
7.What is a Homogeneous Reactor? Describe a Homogeneous Aqueous Reactor (H.A.R.).
8.What is meant by uranium enrichment? Describe some methods of Uranium enrichment.
Compare the economic (cost) of nuclear power plant with steam power plant.
Explain the terms ‘Breeding’ and ‘Burn up’.
9.State the properties of control rods.
10.Explain the properties of moderator used in a nuclear reactor. Explain the principle of opera-
tion of a sodium graphite reactor.
11.Discuss the factors which go in favour of nuclear power plant as compared to other types of
power plants.