Nuclear Reactions – Exercise – 1

Nuclear Reactions » Exercise – 1

1. The most important advantage of nuclear energy is :

(a) less time is required to generate the energy
(b) a small nuclear fuel is sufficient to produce huge amount of energy
(c) less safety measures are sufficient
(d) many operational difficulties are notthere

2. Which one of the following nuclear reactions is correct ?

(a) ₇N¹⁴ + ₂He⁴ → ₈Fe¹⁹ → ₈O¹⁶ + ₁H¹
(b) ₇N¹⁴ + ₁H¹ → ₈Fe¹⁵ → ₆O¹⁶ + ₂H¹
(c) ₇N¹⁴ + ₂He⁴ → ₈Fe¹⁸ → ₈O¹⁷ + ₁H¹
(d) all are the true

3. Moderator is used to :

(a) Accelerate the bombarding neutrons
(b) Slow down the bombarding neutrons
(c) To eject more electrons
(d) To arrest the nuclear reaction

4. The control rod in a nuclear reactor is made of :

(a) Uranium
(b) Cadmium
(c) Plutomium
(d) Graphite

5. Which of the following isotopes normally fissonable :

(a) ₉₂U²³³
(b) ₉₂U²³⁵
(c) ₉₂U²³⁸
(d) ₉₂U²⁴⁰

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