This set of Energy & Environment Management Multiple Choice Questions & Answers (MCQs) focuses on “Nuclear Hazards and Accidents”.
1. Where was the first use of nuclear bombs which cause death to the millions of lives?
a) Karachi
b) Melbourne and Sydney
c) Hiroshima and Nagasaki
d) Tokyo
View Answer
Explanation: The first nuclear bomb bombard to the twin cities of Japan Hiroshima and Nagasaki. The devastation that nuclear bombs caused to Hiroshima and Nagasaki is terrible. The radioactive waste from nuclear energy has caused, and continues to cause serious environmental damages.
2. Where was the first control fission of an atom carried out?
a) India
b) Japan
c) Russia
d) Germany
View Answer
Explanation: The first controlled fission of an atom was carried out in Germany in 1938. Nuclear fission is the splitting of the nucleus of the atom. This splitting of the nucleus results in energy that can be used for various purposes.
3. Which was the first country to develop an atomic bomb?
a) Russia
b) United States
c) China
d) Japan
View Answer
Explanation: Though Germany is the first country where first controlled fission of an atom was carried, United State was the first country to develop an atomic bomb, which was subsequently dropped on the Japanese cities Hiroshima and Nagasaki.
4. Who made the famous “Atoms for Peace” speech?
a) Abraham Lincoln
b) Jawaharlal Nehru
c) Dwight D Eisenhower
d) Parker Chewier
View Answer
Explanation: The 34th United States President in December 1953 gave a famous speech called “Atoms for Peace”. The speech figures out the production of electricity through nuclear reactors. It also says Atoms will provide a safe, clean and dependable source of electricity.
5. How many percentage of fissionable U-235 occurring in uranium?
a) 0.1%
b) 0.5%
c) 0.7%
d) 1.5%
View Answer
Explanation: Naturally occurring uranium contains only 0.7% of fissionable U-235, which is not enough for most types of rectors. It is necessary to increase the amount of U-235 by enrichment, although it is a difficult and expensive process.
6. Nuclear energy is only harmful.
a) True
b) False
View Answer
Explanation: Nuclear energy can be both beneficial and harmful, depending on the way in which it is used. For example X-rays which are used to examine bone fracture is useful. Nuclear bombs are harmful for both organisms and environment.
7. When did Chernobyl disaster occurred?
a) 1976
b) 1986
c) 1996
d) 2000
View Answer
Explanation: Chernobyl disaster occurred in 1986. Chernobyl is a small city in Ukraine. On 25 April 1986 the explosion blew the 1000 metric ton concrete roof from the reactor and the reactor caught fire. This results in the world’s worst nuclear accident.
8. Which State in India nuclear accident took place?
a) Tamil Nadu
b) Karnataka
c) Gujarat
d) Rajasthan
View Answer
Explanation: A small amount of nuclear accident observed in the villages and towns around the Kalpakkam Nuclear Station, south of Chennai in Tamil Nadu, in an ongoing study by Pugazhendi. It was took place in January 2003.
9. Which one of the following medical condition caused by the high exposure of radiation?
a) Kidney stone
b) AIDS
c) Mutation
d) Blood pressure
View Answer
Explanation: Excessive exposure to the radiations leads to mutation, which are changes in the genetic makeup of the cells. Mutations can occur in the tissues of the body and may manifest themselves as abnormal tissue growth known as cancer.
10. What is the main purpose of nuclear energy?
a) To kill the enemy nation
b) To waste the excessive energy
c) To use it as an alternate source of energy
d) To cause mutation for people who are working
View Answer
Explanation: Nuclear energy was developed by man as an alternate source of clean and cheap energy when compared to fossil fuels. Along with the benefits of nuclear energy, there have been a number of accidents which harm many lives.
11. Approximately how many percentage of electricity produced by nuclear power in the world?
a) 10
b) 14
c) 17
d) 20
View Answer
Explanation: Approximately 17% of electricity produced by nuclear power in the world. Nuclear power is being used worldwide for the generations of electricity. With numerous harm effects of nuclear power the main advantage is to produce electricity from nuclear power.
12. Which is the main source of nuclear radiations?
a) Nuclear power plant
b) Sunlight
c) Atmospheric air
d) Volcanoes
View Answer
Explanation: The main source of radiation is nuclear power plant and particularly from the core ad coolant of the reactor. The fission products produced during normal operations remain within the fuel element an also in nuclear wastes.
13. Which radioactive cause cancer in thyroid gland?
a) U-235
b) U-238
c) I-132
d) C-12
View Answer
Explanation: Damage caused by different types of radiations depends on the penetration power and presence of source inside or outside the body. Radioactive iodine (I-131) accumulates in thyroid gland and causes cancer.
14. The use of nuclear energy in the war had devastating effects on humans and on the earth.
a) True
b) False
View Answer
Explanation: During war nuclear power is used only once so far. The United States dropped two atomic bombs over the Japanese towns of Hiroshima and Nagasaki in 1945. These two atomic bombs killed thousands of people.
Sanfoundry Global Education & Learning Series – Energy & Environment Management.
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