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Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has

Correct Answer: Low moderating efficiency
Enriched uranium is required as a fuel in a nuclear reactor, if light water is used as moderator and coolant, because light water has Low moderating efficiency

Enriched uranium is required as a fuel in a nuclear reactor. Light water is used as moderator & coolant, because light water has

Consider the following statements.
1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction.
2. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled.
3. In a nuclear reactor, all operating reactors are 'critical', while there is no question of 'critically' in case of a nuclear bomb.
4. Nuclear reactors do not use moderators, while nuclear bombs use them.
Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is/are correct?

To meet its rapidly growing energy demand, some opinion that india should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thoriumis farmore abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statements given above is/are correct?

To meet its rapidly growing energy demand some opine that India should pursue research and development on thorium as the future fuel of nuclear energy. In this context, what advantage does thorium hold over uranium?
1. Thorium is far more abundant in nature than uranium.
2. On the basis of per unit mass of mined mineral, thorium can generate more energy compared to natural uranium.
3. Thorium produces less harmful waste compared to uranium.
Which of the statement(s) given above is/are correct?

Which of the following statement is true? I. In homogeneous reactors the nuclear fuel and the moderator represents a uniform mixture in the fluid form. II. In heterogeneous reactors separate fuel sludge or roads are inserted in the moderator III. Most of the nuclear reactors used these days are of homogeneous type

CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the

Correct answer for the given blank out of the four alternatives.
The main failings were of conception and a political willingness to settle _________ easy options. _______________ the expansive declarationsof the need "to maintain effective security of all nuclear materials, _______________ includes nuclear materials used in nuclear weapons”, thesummits narrowed their _______________ to civilian holdings __________________ non­nuclear weapon states.
_______________ includes nuclear materials used in nuclear weapons”

What is true for Kalpakkam Fast Breeder Reactor?
1. In it, only natural uranium is used as a fuel.
2. In it, Plutonium carbide and natural uranium carbide mixture are used as a fuel.
3. More than 200 M Watt atomic electricity would be produced from it.
Choose the correct answer:

Heavy water is used as a moderator in a nuclear reactor. The function of the moderator is

With reference to 'fuel cells' in which hydrogen rich fuel and oxygen are used to generate electricity. Consider the following statements.
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop, computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is/are correct?