Wednesday, April 15, 2015

Download NE2034 Nuclear Engineering 02 marks and answers

Looking for NE2034 Nuclear Engineering 02 marks and answers? It's for seventh semester Mechanical Engineering Students. Get it right now from the following questions and answers.

1. What are the advantages of nuclear power?
Ans. Advantages of nuclear energy :-
a) Generating electricity by nuclear energy saving is an important pollutant gases (CO2 and others) that would be generated if this energy would be generated from the burning of fossil fuels.
b) Another advantage is in the amount of fuel needed; with little fuel large amounts of energy are obtained.This saves on raw materials but also in transport, handling extraction nuclear fuel. The cost of fuel is 20% of the cost of energy generated. .
c) Production of electric energy is continuous. A nuclear power plant is generating electricity for almost 90 % of the hours of the year.
d)As an alternative to fossil fuels need not consume as much of carbon fuels like oil, so therefore the problem of global warming, which is believed to have reduced one more important influence on climate change on the planet. By reducing the consumption of fossil fuels also improve the quality of the air we breathe with all that this implies in the decline of disease and quality of life.
2. List down the disadvantages of nuclear power.
Ans. Disadvantages of nuclear power:-
a) The use of nuclear energy for conversion into mechanical energy is very low.
b) The main drawback and what makes it great is that security in their use remains the responsibility of individuals. Although there are many automated safety systems at nuclear power plants, people can make wrong or irresponsible decisions. Once an accident has occurred, the way how it is managed is also dependent on the decisions made by people who are in office. .
c) The most alarming problem is the use that can be given to nuclear power in the defence industry.
A civil level, a major drawback is-the generation of nuclear waste and the difficulty to manage and many years to lose its radioactivity and danger.
d) Nuclear reactors, once constructed, have an expiration date. Nuclear plants have a limited life. The
investment for the construction of a nuclear plant is very high and must be recovered in no time, so this raises the cost of electricity generated.
e) Nuclear power plants are targets for terrorist organizations.
t) Current nuclear reactors work by fission nuclear reactions. These chain reactions occur so that if the control systems should fail every time more and more reactions would occur to cause a radioactive explosion that would be virtually impossible to contain.

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