Nuclear Reactors | MCQs

Explanation

Graphite is used in nuclear reactors as a neutron moderator.

It slows down high-energy neutrons to thermal energies to maintain the chain reaction efficiently.

Explanation

Uranium is a non-renewable energy source used in nuclear power plants for generating electricity through nuclear fission.

It is finite and cannot be replenished on a human timescale, unlike renewable energy sources such as solar or biomass.

Explanation

Cadmium rods are inserted in nuclear reacter to absorb the extra nucleons.

Cadmium has a high thermal neutron absorption cross section.

Therefore, cadmium rods will absorb neutrons, making them unavailable to cause fission.

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Explanation

The Olkiluoto 3 nuclear reactor, which is now the largest reactor in Europe, began a regular production schedule on April 16, 2023.

Olkiluoto 3 belongs to Finland