Tag: electricity from nuclear energy

Questions Related to electricity from nuclear energy

State whether the given statement is True or False :
Nuclear power plants as compared to other plants can generate huge amount of electricity. 

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  1. True

  2. False

Show answer
Correct Option: A
Explanation:

With a complete combustion or fission, approx. $8 \ kWh$ of power can be generated from $1\  kg$ of coal, approx. $12 \ kWh$ power from $1\  kg$ of mineral oil and around $24,000,000\  kWh$ of power from $1 \ kg$ of Uranium-$235$.

State whether the given statement is True or False :
Waste products emitted from nuclear power plants are very harmful.

physics towards green energy electricity from nuclear energy nuclear power nuclear energy

  1. True

  2. False

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Correct Option: A
Explanation:

Waste products formed during nuclear reactions are highly radioactive in nature and cannot be disposed into the environment directly. Wastes needs to be processed before releasing it into the environment.

1 kg of ________ can light up $1$ bulb for $3\times10^4$ years.

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  1. Uranium

  2. Halonium

  3. Neutronium

  4. Hydronium

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Correct Option: A
Explanation:

1 kg of coal can light the bulb for 8 hours whereas 1 kg of uranium can light the bulb for 3 x 10$^4$ years.

Radiations from a nuclear power plant is harmful to: 

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  1. environment

  2. human civilization

  3. wildlife

  4. all of the above

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Correct Option: D
Explanation:

Radiation from the radioactive elements pollutes not only the environment but also the civilization coming in contact with it. It causes radiation sickness which left untreated causes fatality.

In Kaiga Atomic Power reactor plant, the fuel that can be used is

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  1. Coal

  2. Uranium

  3. Petrol

  4. Natural gas

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Correct Option: B
Explanation:

Kaiga Generating Station is a nuclear power generating station situated at Kaiga, near the river Kali, in Uttar Kannada district of Karnataka, India. The plant has been in operation since March 2000 and is operated by the Nuclear Power Corporation of India. The plant is fueled by indigenous Uranium.

Hence correct answer is option B. 

The fuel used in nuclear power plants is

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  1. U-235

  2. U-238

  3. U-236

  4. enriched U-235

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Correct Option: D

The fusion reactions occur at

physics towards green energy electricity from nuclear energy nuclear power nuclear energy

  1. low pressures

  2. high temperature

  3. extremely high temperature

  4. high temperature and low presences

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Correct Option: C

Nuclear energy may become an important source of energy in the future.
Which one of the following statements about nuclear energy is NOT true?

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  1. Large amounts of energy are produced by a small mass of fuel

  2. Nuclear energy has no harmful effects

  3. Nuclear energy produces heat on the sun

  4. Uranium is an important fuel for nuclear energy

Show answer
Correct Option: B
Explanation:

Nuclear fuels are non-renewable sources of energy and large amount of radioactive materials, which are toxic in nature, are released in the environment which are extremely hazardous to the health of living being for thousands of years. Thus nuclear energy also has some harmful effects.

Whereas the statements given in (A), (C) and (D) are true.

An atom bomb works on :

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  1. Electrical energy

  2. Heat energy

  3. Mechanical energy

  4. Atomic energy

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Correct Option: D
Explanation:

Atomic energy 

Atomic energy is the energy that is created by splitting apart the nuclei of atoms.  The atomic energy is released during the process of fission.  The basic principle of atom bomb is uncontrolled nuclear fission. 

The essential distinction between X-rays and $\gamma$-rays is that the $\gamma$-rays :

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  1. have greater ionizing power than X-rays

  2. emanate from nucleus, white X-rays emanate from outer part of the atom

  3. have smaller wave-length than X-rays

  4. none of the above 

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Correct Option: A
Explanation:

A 

Gamma-rays have the highest energy in the EMR spectrum and their waves have the shortest Wavelength. Gamma rays are lot more dangerous and hazardous to human health than X-rays. Moreover gamma rays are the highly penertating and highly energetic ionizing radiation.